CN112940482A - Composite material suitable for in-mold injection molding and preparation method thereof - Google Patents
Composite material suitable for in-mold injection molding and preparation method thereof Download PDFInfo
- Publication number
- CN112940482A CN112940482A CN202110396130.1A CN202110396130A CN112940482A CN 112940482 A CN112940482 A CN 112940482A CN 202110396130 A CN202110396130 A CN 202110396130A CN 112940482 A CN112940482 A CN 112940482A
- Authority
- CN
- China
- Prior art keywords
- composite material
- injection molding
- mold injection
- material suitable
- antioxidant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 77
- 238000001746 injection moulding Methods 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000004417 polycarbonate Substances 0.000 claims abstract description 39
- 229920001577 copolymer Polymers 0.000 claims abstract description 37
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 37
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 34
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 33
- 239000003365 glass fiber Substances 0.000 claims abstract description 31
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003063 flame retardant Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 26
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 26
- 239000000314 lubricant Substances 0.000 claims abstract description 24
- 239000012745 toughening agent Substances 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- -1 polyethylene terephthalate Polymers 0.000 claims description 30
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 26
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 26
- 238000012360 testing method Methods 0.000 claims description 19
- 239000000155 melt Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 11
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 10
- 125000005375 organosiloxane group Chemical group 0.000 claims description 8
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 6
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 6
- 230000004580 weight loss Effects 0.000 claims description 6
- BQPNUOYXSVUVMY-UHFFFAOYSA-N [4-[2-(4-diphenoxyphosphoryloxyphenyl)propan-2-yl]phenyl] diphenyl phosphate Chemical compound C=1C=C(OP(=O)(OC=2C=CC=CC=2)OC=2C=CC=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OP(=O)(OC=1C=CC=CC=1)OC1=CC=CC=C1 BQPNUOYXSVUVMY-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920001897 terpolymer Polymers 0.000 claims description 4
- BGGGMYCMZTXZBY-UHFFFAOYSA-N (3-hydroxyphenyl) phosphono hydrogen phosphate Chemical compound OC1=CC=CC(OP(O)(=O)OP(O)(O)=O)=C1 BGGGMYCMZTXZBY-UHFFFAOYSA-N 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 2
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 16
- 239000002202 Polyethylene glycol Substances 0.000 abstract description 6
- 229920001223 polyethylene glycol Polymers 0.000 abstract description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract description 6
- 238000004080 punching Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 230000037303 wrinkles Effects 0.000 abstract description 3
- 229920007019 PC/ABS Polymers 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 229920006351 engineering plastic Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000005034 decoration Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of PC/ABS alloy modified engineering plastics, in particular to a composite material suitable for in-mold injection molding and a preparation method thereof; the composite material comprises the following raw materials: polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene glycol terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant, a lubricant and glass fiber, the mechanical property of the composite material is improved, the high fluidity of the composite material is suitable for low-temperature injection molding in a mold, the injection molding temperature reaches 230 ℃, the injection molding can be carried out, the low-temperature low-pressure injection molding can be adopted, and wrinkles, deformation and pattern punching of the decorative sheet are avoided; meanwhile, the composite material has good adhesion with the decorative sheet, is used for an in-mold injection molding process, and has the advantages of stable molding process and high yield.
Description
Technical Field
The invention relates to the technical field of PC/ABS alloy modified engineering plastics, in particular to a composite material suitable for in-mold injection molding and a preparation method thereof.
Background
The in-mold injection molding process, also known as in-mold insert Injection Molding Decoration (IMD), is to put the printed and molded decorative sheet into an injection mold in advance, and then inject the modified plastic material into the back of the molded sheet by means of injection molding, so as to realize the integral curing molding of the plastic resin and the decorative sheet. The technology is a popular surface decoration technology at home and abroad at present, and is mainly used for the outer surface decoration of mobile phone shells, air conditioner panels, washing machine refrigerator shells, automobile instrument panels and the like. The material of decorative sheet in IMD process generally uses PET or PC as main component, Chinese patent CN 102416688A discloses a treatment process of in-mold injection product, said patent provides a treatment process of in-mold injection product, said product treated by said process possesses obvious high edge angle and high stereoscopic effect, and its surface appearance is very excellent. However, this patent does not describe the plastic material of the treatment process in more detail.
In the prior art, the main problems of the injection molding of the plastic raw material into the formed sheet include the occurrence of wrinkles on the sheet, the deformation of an injection molded part, the punching of the sheet pattern by the overheated plastic material and the falling and peeling of the sheet and the plastic material after the integral forming, thereby greatly reducing the yield of products.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a composite material which is high in fluidity and suitable for in-mold injection.
The invention also aims to provide a preparation method of the composite material suitable for in-mold injection, which is simple to operate, convenient to control, high in production efficiency, low in production cost and applicable to large-scale production.
The purpose of the invention is realized by the following technical scheme: the composite material suitable for in-mold injection molding comprises the following raw materials in parts by weight:
the composite material suitable for in-mold injection molding disclosed by the invention is characterized in that polycarbonate is taken as a main resin, and additives such as a carbonate-organic siloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene glycol terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant, a lubricant, glass fiber and the like are added, so that the mechanical property of the composite material is improved, the high fluidity of the composite material is suitable for in-mold low-temperature injection molding, the injection molding temperature reaches 230 ℃, the injection molding can be carried out, the low-temperature low-pressure injection molding can be adopted, and the decorative sheet is prevented from wrinkling, deformation and pattern punching; meanwhile, the composite material has good adhesion with the decorative sheet, is used for an in-mold injection molding process, and has the advantages of stable molding process and high yield. The added polycarbonate and polyethylene terephthalate enable the composite material to have good compatibility with PET or PC decorative sheets, and the adhesive force between the composite material and the decorative sheets is high. The glass fiber is adopted for reinforcement, so that the rigidity of the composite material is improved, and the injection molded part of the composite material is not easy to warp and deform; the mechanical property and the processing property of the composite material are improved by adopting the synergistic effect of the carbonate-organic siloxane copolymer, the acrylonitrile-butadiene-styrene copolymer, the polyethylene glycol terephthalate, the toughening agent and the lubricant. If the amount of ABS is controlled to be 5-15 parts, the flowability of the material is easily reduced if the amount of ABS is too small, and the strength of the material is easily reduced if the amount of ABS is too high, so that the use requirement cannot be met. The anti-dripping agent is polytetrafluoroethylene.
Preferably, the polycarbonate is non-phosgene method polycarbonate with the weight-average molecular weight of 17000-24000, and the melt index of the polycarbonate is 10-22g/10min under the test conditions of 300 ℃ and 1.2 kg.
By adopting the technical scheme, the influence of chlorine in the polycarbonate on the mechanical property and the service life of the material is avoided. The weight average molecular weight of the polycarbonate is controlled to be 17000-24000, so that the influence on the high fluidity of the composite material caused by high melt viscosity and reduced melt index is avoided.
Preferably, the carbonate-organosiloxane copolymer has a weight average molecular weight of 15000-20000 and an organosiloxane segment content of 8-15 wt%.
By adopting the technical scheme, the weight average molecular weight of the carbonate-organosiloxane copolymer is controlled to be 15000-20000 so as to ensure the melt index of the carbonate-organosiloxane copolymer and improve the toughness of the material, and the phenomenon that the high fluidity of the material is influenced by the reduction and over-low of the toughness of the material due to the overhigh melt index of the carbonate-organosiloxane copolymer is avoided. The content of the organic siloxane chain segment is controlled to be 8-15 wt%, so that the toughness of the composite material and the adhesion of the composite material to a decorative sheet are improved, the compatibility is improved by interaction with glass fiber, the processing of the composite material is promoted, and the mechanical property of the material is improved.
Preferably, the acrylonitrile-butadiene-styrene copolymer has a butadiene segment content of 15 to 20 wt% and a melt index of 5 to 15g/10min at 220 ℃ under a test condition of 5 kg.
By adopting the technical scheme, the butadiene chain segment content of the ABS is controlled to be 15-20 wt%, the butadiene chain segment content of the ABS and the carbonate-organosiloxane copolymer and the toughening agent act together to improve the toughness of the composite material, the melt index is controlled to be 5-15g/10min, and the problems that the material flowability is reduced due to too low melt index, and the mechanical property of the material is influenced due to too high melt index are avoided.
Preferably, the crystallinity of the polyethylene terephthalate is 5 to 10%.
By adopting the technical scheme, the compatibility and stability of the polyethylene glycol terephthalate in the composite material are improved, the processing performance is improved, and the fluidity of the composite material is improved, in addition, the crystallinity of the polyethylene glycol terephthalate is controlled to be 5-10%, so that the bonding force between the composite material and the decorative sheet is promoted, and the yield is improved.
Preferably, the toughening agent is at least one of an ethylene-octene-maleic anhydride terpolymer, a methyl methacrylate-butadiene-styrene copolymer, a methyl methacrylate-organosiloxane-styrene copolymer, or a maleic anhydride grafted thermoplastic polyurethane.
By adopting the technical scheme, the impact toughness and the processing fluidity are improved.
Preferably, the flame retardant is at least one of bisphenol a-bis (diphenyl phosphate), resorcinol diphosphate, triphenyl phosphate, or tris (β -chloroethyl) phosphate; the antioxidant is at least one of antioxidant 1010, high temperature antioxidant 412S, antioxidant 1076, antioxidant 168, or antioxidant 626.
By adopting the technical scheme, the flame retardant adopts organophosphorus flame retardant to promote the compatibility of the flame retardant and polycarbonate, so that the flame retardant effect is improved, and the processing fluidity of the composite material is improved. The antioxidant is adopted to improve the aging and yellowing resistance of the composite material.
Preferably, the glass fiber is alkali-free chopped glass fiber with monofilament diameter of 7-13 μm and chopped length of 3-10 mm.
By adopting the technical scheme, the glass fiber is compounded in the composite material under the synergistic action of the carbonate-organic siloxane copolymer, so that the glass fiber is prevented from suspending on the surface of the composite material to influence the material performance and the adhesion with the decorative sheet.
Preferably, the lubricant is at least one of pentaerythritol stearate type lubricant, ethylene wax or silicone oil.
By adopting the technical scheme, the flowability of the composite material in the processing process and the flowability of the composite material in the injection molding process can be improved, and the mixing torque and the load are reduced, so that the thermal degradation of the composite material is prevented, the efficiency of dispersing the material is improved, the friction degree between the composite material and mechanical equipment in the preparation process can be reduced, the processing difficulty can be reduced, the processing is convenient, and the energy consumption is saved.
The other purpose of the invention is realized by the following technical scheme: the preparation method of the composite material suitable for in-mold injection molding comprises the following steps:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant and a lubricant for 5-15min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
In the step (3), the temperature of each zone of the twin-screw extruder is as follows: at the temperature of 200-class sand, 250 ℃ at the temperature of 200-class sand, 430rpm at the rotation speed of the screw at the temperature of 200-class sand, 26 at the length-diameter ratio of the screw: 1.
the invention has the beneficial effects that: the composite material suitable for in-mold injection molding disclosed by the invention takes polycarbonate as main resin, and is added with additives such as carbonate-organic siloxane copolymer, acrylonitrile-butadiene-styrene copolymer, polyethylene glycol terephthalate, toughening agent, flame retardant, anti-dripping agent, antioxidant, lubricant, glass fiber and the like, so that the mechanical property of the composite material is improved, the high fluidity of the composite material is suitable for in-mold low-temperature injection molding, the injection molding temperature can reach 230 ℃, the injection molding can be carried out, the low-temperature low-pressure injection molding can be adopted, and wrinkles, deformation and pattern punching of decorative sheets are avoided; meanwhile, the composite material has good adhesion with the decorative sheet, is used for an in-mold injection molding process, and has the advantages of stable molding process and high yield.
The preparation method of the composite material suitable for in-mold injection molding is simple to operate, convenient to control, high in production efficiency, low in production cost and capable of being used for large-scale production.
Detailed Description
The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.
Example 1
The composite material suitable for in-mold injection molding comprises the following raw materials in parts by weight:
the polycarbonate is non-phosgene polycarbonate with the weight-average molecular weight of 20000, and the melt index of the polycarbonate under the test conditions of 300 ℃ and 1.2kg is 16g/10 min.
The carbonate-organosiloxane copolymer had a weight average molecular weight of 18000 and an organosiloxane segment content of 10 wt%.
The acrylonitrile-butadiene-styrene copolymer has a butadiene segment content of 18 wt% and a melt index of 10g/10min at 220 ℃ under a test condition of 5 kg.
The crystallinity of the polyethylene terephthalate was 8%.
The toughening agent is an ethylene-octene-maleic anhydride terpolymer.
The flame retardant is bisphenol a-bis (diphenyl phosphate); the antioxidant is an antioxidant 1010 and an antioxidant 168, and the weight ratio is 1: 2, mixing the components.
The glass fiber is alkali-free chopped glass fiber with monofilament diameter of 10 μm and chopped length of 6 mm.
The lubricant is pentaerythritol stearate.
The preparation method of the composite material suitable for in-mold injection molding comprises the following steps:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant and a lubricant for 10min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
In the step (3), the temperature of each zone of the double-screw extruder is as follows: 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 250 ℃, 230 ℃ of die head temperature, 350rpm of screw rotation speed, 26: 1.
example 2
The composite material suitable for in-mold injection molding comprises the following raw materials in parts by weight:
the polycarbonate is non-phosgene method polycarbonate with the weight-average molecular weight of 17000, and the melt index of the polycarbonate is 20g/10min under the test conditions of 300 ℃ and 1.2 kg.
The carbonate-organosiloxane copolymer had a weight average molecular weight of 15000 and an organosiloxane segment content of 8 wt%.
The content of a butadiene chain segment of the acrylonitrile-butadiene-styrene copolymer is 15 wt%, and the melt index of the acrylonitrile-butadiene-styrene copolymer under the test conditions of 220 ℃ and 5kg is 5g/10 min.
The crystallinity of the polyethylene terephthalate was 5%.
The toughening agent is methyl methacrylate-butadiene-styrene copolymer.
The flame retardant is resorcinol diphosphate; the antioxidant is an antioxidant 1010 and an antioxidant 168, and the weight ratio is 1: 2, mixing the components.
The glass fiber is alkali-free chopped glass fiber with monofilament diameter of 7 μm and chopped length of 3 mm.
The lubricant is pentaerythritol stearate.
The preparation method of the composite material suitable for in-mold injection molding comprises the following steps:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant and a lubricant for 5min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
In the step (3), the temperature of each zone of the double-screw extruder is as follows: 200 ℃, 210 ℃, 250 ℃, 230 ℃, 210 ℃, 250 ℃, 210 ℃, 220 ℃ of die head temperature, 350rpm of screw rotation speed, 26: 1.
example 3
The composite material suitable for in-mold injection molding comprises the following raw materials in parts by weight:
the polycarbonate is non-phosgene method polycarbonate with the weight average molecular weight of 24000, and the melt index of the polycarbonate is 10g/10min under the test conditions of 300 ℃ and 1.2 kg.
The carbonate-organosiloxane copolymer has a weight average molecular weight of 20000 and an organosiloxane segment content of 15 wt%.
The content of the butadiene chain segment of the acrylonitrile-butadiene-styrene copolymer is 20 wt%, and the melt index of the acrylonitrile-butadiene-styrene copolymer under the test conditions of 220 ℃ and 5kg is 15g/10 min.
The crystallinity of the polyethylene terephthalate was 10%.
The toughening agent is a methyl methacrylate-organosiloxane-styrene copolymer.
The flame retardant is bisphenol a-bis (diphenyl phosphate); the antioxidant is an antioxidant 1010 and an antioxidant 168, and the weight ratio is 1: 2, mixing the components.
The glass fiber is alkali-free chopped glass fiber with monofilament diameter of 13 μm and chopped length of 10 mm.
The lubricant is pentaerythritol stearate.
The preparation method of the composite material suitable for in-mold injection molding comprises the following steps:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant and a lubricant for 15min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
In the step (3), the temperature of each zone of the double-screw extruder is as follows: 230 ℃, 250 ℃, 200 ℃, 250 ℃, 210 ℃ of die head temperature, 350rpm of screw rotation speed, 26: 1.
example 4
The composite material suitable for in-mold injection molding comprises the following raw materials in parts by weight:
the polycarbonate is non-phosgene method polycarbonate with the weight average molecular weight of 20000, and the melt index of the polycarbonate is 18g/10min under the test conditions of 300 ℃ and 1.2 kg.
The carbonate-organosiloxane copolymer has a weight average molecular weight of 16000 and an organosiloxane segment content of 10 wt%.
The content of a butadiene chain segment of the acrylonitrile-butadiene-styrene copolymer is 16 wt%, and the melt index of the acrylonitrile-butadiene-styrene copolymer under the test conditions of 220 ℃ and 5kg is 8g/10 min.
The crystallinity of the polyethylene terephthalate was 6%.
The toughening agent is an ethylene-octene-maleic anhydride terpolymer.
The flame retardant is bisphenol a-bis (diphenyl phosphate); the antioxidant is an antioxidant 1010 and an antioxidant 168, and the weight ratio is 1: 2, mixing the components.
The glass fiber is alkali-free chopped glass fiber with monofilament diameter of 8 μm and chopped length of 5 mm.
The lubricant is pentaerythritol stearate.
The preparation method of the composite material suitable for in-mold injection molding comprises the following steps:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, polytetrafluoroethylene, an antioxidant and a lubricant for 8min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
In the step (3), the temperature of each zone of the double-screw extruder is as follows: 220 ℃, 240 ℃, 220 ℃, 250 ℃, 220 ℃, 210 ℃, 250 ℃ of die head temperature, 350rpm of screw rotation speed, 26: 1.
comparative example 1
This comparative example differs from example 1 in that:
the composite material suitable for in-mold injection molding is free of carbonate-organosiloxane copolymers.
Comparative example 2
This comparative example differs from example 1 in that:
the carbonate-organosiloxane copolymer has an organosiloxane segment content of 5 wt%.
Comparative example 3
This comparative example differs from example 1 in that:
the composite material suitable for in-mold injection molding does not contain polyethylene terephthalate.
Comparative example 4
This comparative example differs from example 1 in that:
the composite material suitable for in-mold injection molding is free of acrylonitrile-butadiene-styrene copolymer.
Comparative example 5
This comparative example differs from example 1 in that:
the acrylonitrile-butadiene-styrene copolymer was replaced with AS resin NF 2200.
Example 5
The composite materials of examples 1 to 4 and comparative examples 1 to 5 were tested for melt index, flexural modulus, flexural strength, tensile strength, elongation at break, notched impact strength, flame retardant rating, adhesion to PET decorative sheets, and IMD process yield of cell phone cases.
Wherein the melt index testing condition is 250 ℃/2.16 Kg; the tensile test condition is 20mm/min, and the bending test condition is 20 mm/min; the thickness of the flame retardant grade test is 1.5 mm; the testing condition of the bonding condition with the PET decorative sheet is that the PET decorative sheet is placed in an injection mold and is tested after the composite material is subjected to injection molding at 230 ℃; the judgment condition of the IMD process yield of the mobile phone shell is artificially evaluated according to the conditions of wrinkling of the sheet, deformation of an injection molding part, punching of the sheet pattern by the overheated plastic material and peeling of the sheet and the plastic material after integral forming.
The test results are shown in the following table:
as can be seen from the above table, the composite material according to the embodiment has good mechanical properties, and the yield of the IMD process is within an acceptable range, and can be successfully used in the IMD forming process. In comparison with the test results of example 1, comparative example 1, in which no carbonate-organosiloxane copolymer was added, had significantly reduced mechanical properties, insufficient rigidity, and also affected flame retardancy, and lowered IMD process yield. Compared with comparative example 2, the content of the organosiloxane segment of the specific carbonate-organosiloxane copolymer used in example 1 significantly improved the mechanical properties (tensile strength, impact strength, elongation at break) of the composite, and the IMD process yield was also improved. In comparison with the test results of example 1, in the case where the PET component was not added to the composite material, the adhesion between the composite material and the decorative substrate was significantly reduced, and the IMD process yield was significantly reduced. Compared with the comparative examples 4 and 5, the ABS resin is added in the example 1, so that the melt index of the composite material is greatly improved, the high-fluidity characteristic of the composite material is ensured, and the processability is improved.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The composite material suitable for in-mold injection molding is characterized by comprising the following raw materials in parts by weight:
2. a composite material suitable for in-mold injection molding according to claim 1, wherein: the polycarbonate is non-phosgene method polycarbonate with the weight-average molecular weight of 17000-24000, and the melt index of the polycarbonate is 10-22g/10min under the test conditions of 300 ℃ and 1.2 kg.
3. A composite material suitable for in-mold injection molding according to claim 1, wherein: the carbonate-organosiloxane copolymer has a weight average molecular weight of 15000-20000 and an organosiloxane segment content of 8-15 wt%.
4. A composite material suitable for in-mold injection molding according to claim 1, wherein: the content of a butadiene chain segment of the acrylonitrile-butadiene-styrene copolymer is 15-20 wt%, and the melt index of the acrylonitrile-butadiene-styrene copolymer is 5-15g/10min at 220 ℃ under the test condition of 5 kg.
5. A composite material suitable for in-mold injection molding according to claim 1, wherein: the crystallinity of the polyethylene terephthalate is 5-10%.
6. A composite material suitable for in-mold injection molding according to claim 1, wherein: the toughening agent is at least one of ethylene-octene-maleic anhydride terpolymer, methyl methacrylate-butadiene-styrene copolymer, methyl methacrylate-organosiloxane-styrene copolymer or maleic anhydride grafted thermoplastic polyurethane.
7. A composite material suitable for in-mold injection molding according to claim 1, wherein: the flame retardant is at least one of bisphenol A-bis (diphenyl phosphate), resorcinol diphosphate, triphenyl phosphate or tris (beta-chloroethyl) phosphate; the antioxidant is at least one of antioxidant 1010, high temperature antioxidant 412S, antioxidant 1076, antioxidant 168, or antioxidant 626.
8. A composite material suitable for in-mold injection molding according to claim 1, wherein: the glass fiber is alkali-free chopped glass fiber with monofilament diameter of 7-13 μm and chopped length of 3-10 mm.
9. A composite material suitable for in-mold injection molding according to claim 1, wherein: the lubricant is at least one of pentaerythritol stearate lubricant, ethylene wax or organic silicone oil.
10. A method of making a composite material suitable for in-mold injection molding according to any one of claims 1 to 9, comprising the steps of:
(S1) taking polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant, a lubricant and glass fiber according to parts by weight for later use;
(S2) mixing polycarbonate, a carbonate-organosiloxane copolymer, an acrylonitrile-butadiene-styrene copolymer, polyethylene terephthalate, a toughening agent, a flame retardant, an anti-dripping agent, an antioxidant and a lubricant for 5-15min to obtain a premix;
(S3) extruding and granulating the premix by a double-screw extruder, and adding glass fibers by a side feeding method through a weight loss scale to obtain the composite material suitable for in-mold injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110396130.1A CN112940482B (en) | 2021-04-13 | 2021-04-13 | Composite material suitable for in-mold injection molding and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110396130.1A CN112940482B (en) | 2021-04-13 | 2021-04-13 | Composite material suitable for in-mold injection molding and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112940482A true CN112940482A (en) | 2021-06-11 |
| CN112940482B CN112940482B (en) | 2023-03-28 |
Family
ID=76232483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110396130.1A Active CN112940482B (en) | 2021-04-13 | 2021-04-13 | Composite material suitable for in-mold injection molding and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112940482B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605805A (en) * | 2022-04-15 | 2022-06-10 | 广东圆融新材料有限公司 | Flame-retardant polycarbonate composition and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675304A (en) * | 2002-06-13 | 2005-09-28 | 通用电气公司 | Thermoplastic compositions and process for making thereof |
| US20070149722A1 (en) * | 2004-08-05 | 2007-06-28 | General Electric Company | Flame retardant thermoplastic polycarbonate compositions, method of manufacture, and method of use thereof |
| CN101747614A (en) * | 2008-12-01 | 2010-06-23 | 帝人化成株式会社 | Resin composition for film insert molding and molded product |
| CN101831164A (en) * | 2010-04-21 | 2010-09-15 | 深圳市科聚新材料有限公司 | IMD (In-Mole Decoration) injection molding PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material and preparation method |
| CN101974218A (en) * | 2010-11-12 | 2011-02-16 | 大河宝利材料科技(苏州)有限公司 | Special plastic/acrylonitrile butadiene styrene (PC/ABS) alloy for notebook computer shell |
| CN106687527A (en) * | 2014-10-22 | 2017-05-17 | 沙特基础工业全球技术有限公司 | Polycarbonate/polyester composition and article prepared therefrom |
| CN106977891A (en) * | 2017-03-17 | 2017-07-25 | 中山市通彩化工科技有限公司 | A kind of low temperature resistant halogen-free flame-retardant polycarbonate composition and application thereof |
| CN109608856A (en) * | 2018-11-23 | 2019-04-12 | 中广核俊尔新材料有限公司 | A kind of charging pile shell antiflaming polycarbonate alloy PP Pipe Compound and preparation method thereof |
| CN110511550A (en) * | 2018-05-21 | 2019-11-29 | 沙特基础工业全球技术有限公司 | Polycarbonate compositions, comprising its molded, shaped articles and article of manufacture method |
| CN110591321A (en) * | 2019-08-30 | 2019-12-20 | 金发科技股份有限公司 | A kind of glass fiber reinforced polycarbonate composite material and its preparation method and application |
-
2021
- 2021-04-13 CN CN202110396130.1A patent/CN112940482B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675304A (en) * | 2002-06-13 | 2005-09-28 | 通用电气公司 | Thermoplastic compositions and process for making thereof |
| US20070149722A1 (en) * | 2004-08-05 | 2007-06-28 | General Electric Company | Flame retardant thermoplastic polycarbonate compositions, method of manufacture, and method of use thereof |
| CN101747614A (en) * | 2008-12-01 | 2010-06-23 | 帝人化成株式会社 | Resin composition for film insert molding and molded product |
| CN101831164A (en) * | 2010-04-21 | 2010-09-15 | 深圳市科聚新材料有限公司 | IMD (In-Mole Decoration) injection molding PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) composite material and preparation method |
| CN101974218A (en) * | 2010-11-12 | 2011-02-16 | 大河宝利材料科技(苏州)有限公司 | Special plastic/acrylonitrile butadiene styrene (PC/ABS) alloy for notebook computer shell |
| CN106687527A (en) * | 2014-10-22 | 2017-05-17 | 沙特基础工业全球技术有限公司 | Polycarbonate/polyester composition and article prepared therefrom |
| CN106977891A (en) * | 2017-03-17 | 2017-07-25 | 中山市通彩化工科技有限公司 | A kind of low temperature resistant halogen-free flame-retardant polycarbonate composition and application thereof |
| CN110511550A (en) * | 2018-05-21 | 2019-11-29 | 沙特基础工业全球技术有限公司 | Polycarbonate compositions, comprising its molded, shaped articles and article of manufacture method |
| CN109608856A (en) * | 2018-11-23 | 2019-04-12 | 中广核俊尔新材料有限公司 | A kind of charging pile shell antiflaming polycarbonate alloy PP Pipe Compound and preparation method thereof |
| CN110591321A (en) * | 2019-08-30 | 2019-12-20 | 金发科技股份有限公司 | A kind of glass fiber reinforced polycarbonate composite material and its preparation method and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114605805A (en) * | 2022-04-15 | 2022-06-10 | 广东圆融新材料有限公司 | Flame-retardant polycarbonate composition and preparation method thereof |
| CN114605805B (en) * | 2022-04-15 | 2023-08-25 | 广东圆融新材料有限公司 | Flame retardant polycarbonate composition and method for preparing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112940482B (en) | 2023-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101787204B (en) | Low water absorption polyamide composite and preparation method thereof | |
| CN101195707B (en) | Glass fiber-reinforced nylon 6-polypropylene alloy material | |
| CN113801450A (en) | Full-biodegradable modified plastic for high-temperature-resistant extrusion straw product and preparation method thereof | |
| CN113061303A (en) | Glass fiber reinforced polypropylene material and preparation method thereof | |
| CN102532849B (en) | PC/ASA/PBT (poly carbonate/ acrylonitrile-styrene-acrylate/polybutylene terephthalate) alloy material and preparation method thereof | |
| CN102108181A (en) | Thermoplastic alloy and preparation method thereof | |
| CN110684218A (en) | Mixed fiber reinforced and modified polypropylene composite material and preparation method thereof | |
| CN101838452B (en) | Polycarbonate resin composition and preparation method thereof | |
| CN103788470A (en) | Long glass fiber-reinforced polypropylene composition product | |
| CN105462239A (en) | Glass fiber reinforced nylon material for rail and preparation method of glass fiber reinforced nylon material | |
| CN102942790A (en) | High temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material | |
| CN111763383B (en) | Good-touch glass fiber reinforced polypropylene composite and preparation method thereof | |
| CN111117185A (en) | High-impact-resistance glass fiber reinforced PC/ABS alloy material and preparation method thereof | |
| CN112940482B (en) | Composite material suitable for in-mold injection molding and preparation method thereof | |
| CN102181139A (en) | Glass fiber reinforcement polycarbonate resin and preparation method thereof | |
| CN114605805B (en) | Flame retardant polycarbonate composition and method for preparing the same | |
| CN114231005B (en) | PC/ABS alloy material suitable for INS diaphragm base material and preparation method thereof | |
| CN102942736A (en) | High-glass fiber content reinforced polypropylene material and preparation method thereof | |
| CN106939112B (en) | High-gloss HIPS/recycled PET bottle flake composite material and preparation method thereof | |
| CN113308045A (en) | Anti-aging plastic box and preparation method thereof | |
| CN109971164B (en) | Modified PA composite material and preparation method thereof | |
| CN112375297A (en) | Glass fiber reinforced PP/PA66 composite material for water chamber of new energy automobile and preparation method thereof | |
| CN111004476A (en) | Engineering plastic composition and preparation method thereof | |
| CN112321982A (en) | Ageing-resistant HIPS foamed plastic | |
| CN104231585A (en) | High-flowability halogen-free flame-retardant polycarbonate, preparation method thereof and high-flowability halogen-free flame-retardant polycarbonate product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |