CN103450672A - Halogen-free flame retardant glass fiber reinforced nylon 6 particle and preparation method thereof - Google Patents
Halogen-free flame retardant glass fiber reinforced nylon 6 particle and preparation method thereof Download PDFInfo
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- CN103450672A CN103450672A CN2013103825552A CN201310382555A CN103450672A CN 103450672 A CN103450672 A CN 103450672A CN 2013103825552 A CN2013103825552 A CN 2013103825552A CN 201310382555 A CN201310382555 A CN 201310382555A CN 103450672 A CN103450672 A CN 103450672A
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- halogen
- glass fiber
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- reinforced nylon
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 71
- 229920002292 Nylon 6 Polymers 0.000 title claims abstract description 52
- 239000002245 particle Substances 0.000 title claims abstract description 39
- 239000003063 flame retardant Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 title claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003112 inhibitor Substances 0.000 claims description 35
- 238000002485 combustion reaction Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 26
- 239000012752 auxiliary agent Substances 0.000 claims description 23
- 230000003647 oxidation Effects 0.000 claims description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 23
- 229920001778 nylon Polymers 0.000 claims description 14
- 239000004677 Nylon Substances 0.000 claims description 13
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical group O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- -1 Polyethylene Polymers 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000005453 pelletization Methods 0.000 claims description 8
- 238000013022 venting Methods 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
- 239000003513 alkali Substances 0.000 claims description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 6
- 150000002989 phenols Chemical class 0.000 claims description 6
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 150000008064 anhydrides Chemical class 0.000 claims description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 229920001897 terpolymer Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 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 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 239000003963 antioxidant agent Substances 0.000 abstract description 2
- 230000003078 antioxidant effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to the technical field of high molecular materials, and particularly relates to a halogen-free flame retardant glass fiber reinforced nylon 6 particle and a preparation method thereof. The particle comprises the following components in percent by weight: 20-50% of nylon 6 resin, 10-35% of glass fiber, 10-30% of fire-retardant resin, 10-20% of red phosphorus master batch, 0-15% of an assistant flame retardant, 2-10% of a flexibilizer, 0.1-1% of an antioxidant and 0.2-1.5% of an assistant processing agent. The product has the characteristics of high strength, high modulus, less creep and low hygroscopicity, further has the characteristics of excellent flame retardant performance (achieving 5-VA level), high mechanical strength, high temperature resistance, light weight and easiness in processing, and can satisfy demands of people on environmental protection. The preparation method provided by the invention is simple to operate and suitable for industrial production.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles and preparation method.
Background technology
Due to the mechanical property of glass fiber reinforced nylon 6 particle excellence, can be widely used in various electronic electric equipments and household appliances, and be purposes one of engineering plastics the most widely.
But most of halogen-free flameproof glass fiber reinforced nylons 6 fire retardant great majority used are halogen containing flame-retardant in the market, the brominated flame-retardant that the polybrominated biphenyl material of particularly take is representative.But in succession implement the rules such as ROHS, PAHS, Reach along with European Union, those decrees require the electronic and electrical equipment of throwing in European Union to ban use of this based flame retardant.Therefore the research of bittern-free flame-proof material has been obtained the attention of various countries, the market requirement of product is also more urgent.
Summary of the invention
The object of the present invention is to provide a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles and preparation method, solved at present in the situation that rules ban use of halogen containing flame-retardant, the performance of glass fiber reinforced nylon 6 particle is limited greatly, the problem that can't meet the need of market.
For addressing the above problem, the technical solution used in the present invention is:
A kind of halogen-free flameproof glass fiber reinforced nylon 6 particles, comprise 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight.
Further technical scheme is, described glass fibre is alkali free glass fibre, and filament diameter is 13 μ m.
Further technical scheme is, described difficult combustion resin is one or more in PPS, PPO, PC.
Further technical scheme is, described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more.
Further technical scheme is, toughner is one or more in polyolefin elastomer grafted maleic anhydride (POE-g-MAH), grafting maleic anhydride with ethylene propylene terpolymer (EPDM-g-MAH), polystyrene-poly ethene-polybutene-polystyrene section multipolymer (SEBS-g-MAH), Research of Grafting Malaic Anhydride Onto Polyethylene (PE-g-MAH).
Further technical scheme is, described oxidation inhibitor is Hinered phenols antioxidant 1098N, N '-inferior hexyl-1.6-bis-[(3,5-di-t-butyl-4-hydroxyphenyl) propionic acid amide]) and phosphite kind antioxidant 168 (three (2,4-di-tert-butyl-phenyl) phosphorous acid ester) in a kind of or with the weight ratio of 1: 1 combination.
Further technical scheme is, described secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
The preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles comprises the following steps:
Step 1, choose 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight;
Step 2 is evenly mixed Nylon 6, difficult combustion resin, red phosphorus masterbatch, assistance fire retardant, toughner, oxidation inhibitor and secondary process auxiliary agent after drying treatment;
Step 3, join by main feeding the compound formed after evenly mixing in twin screw extruder, and glass fibre adds by the twin screw extruder venting port, after mixing in twin screw extruder, extrudes;
Step 4, complete preparation finally by crossing tie rod, cooling, pelletizing, drying treatment.
Further technical scheme is, the length-to-diameter ratio L/D=40 of described twin screw extruder: 1, and processing temperature is between 230～270 ℃, 600 rev/mins of screw speeds, vacuum pressure is controlled at 0.06-0.08MPa.
Further technical scheme is, glass fibre is alkali free glass fibre, and filament diameter is 13 μ m; Difficult combustion resin is one or more in PPS, PPO, PC; Described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more; Toughner is one or more in polyolefin elastomer grafted maleic anhydride (POE-g-MAH), grafting maleic anhydride with ethylene propylene terpolymer (EPDM-g-MAH), polystyrene-poly ethene-polybutene-polystyrene section multipolymer (SEBS-g-MAH), Research of Grafting Malaic Anhydride Onto Polyethylene (PE-g-MAH); Described oxidation inhibitor is a kind of in Hinered phenols antioxidant 1098 and phosphite kind antioxidant 168 or with the weight ratio combination of 1: 1; The secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
The beneficial effect that adopts technique scheme to produce is:
This particle has high strength, high-modulus, characteristics that the little water absorbability of creep is little, also there is flame retardant properties excellence (reaching the 5-VA level), physical strength is high, high temperature resistant, light weight, the easy characteristics of processing, and can meet the requirement of people to environmental protection, preparation method of the present invention applicable suitability for industrialized production simple to operate.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
An embodiment of a kind of halogen-free flameproof glass of the present invention fiber reinforced nylon 6 particles: a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles comprise 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight.
The preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described glass fibre is alkali free glass fibre, filament diameter is 13 μ m.
Another preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described difficult combustion resin is one or more in PPS, PPO, PC.
Another preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more.
Another preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described toughner is one or more in polyolefin elastomer grafted maleic anhydride (POE-g-MAH), grafting maleic anhydride with ethylene propylene terpolymer (EPDM-g-MAH), polystyrene-poly ethene-polybutene-polystyrene section multipolymer (SEBS-g-MAH), Research of Grafting Malaic Anhydride Onto Polyethylene (PE-g-MAH).
Another preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described oxidation inhibitor is Hinered phenols antioxidant 1098 (N, N '-inferior hexyl-1.6-bis-[(3,5-di-t-butyl-4-hydroxyphenyl) propionic acid amide])) and phosphite kind antioxidant 168 (three (2,4-di-tert-butyl-phenyl) phosphorous acid ester) in a kind of or with the weight ratio of 1: 1 combination.
Another preferred embodiment of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, described secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
The embodiment according to the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles: the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles comprises the following steps:
Step 1, choose 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight;
Step 2 is evenly mixed Nylon 6, difficult combustion resin, red phosphorus masterbatch, assistance fire retardant, toughner, oxidation inhibitor and secondary process auxiliary agent after drying treatment;
Step 3, join by main feeding the compound formed after evenly mixing in twin screw extruder, and glass fibre adds by the twin screw extruder venting port, after mixing in twin screw extruder, extrudes;
Step 4, complete preparation finally by crossing tie rod, cooling, pelletizing, drying treatment.
The preparation method's of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles the preferred embodiment according to the present invention: the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles comprises the following steps:
Step 1, choose 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight;
Step 2 is evenly mixed Nylon 6, difficult combustion resin, red phosphorus masterbatch, assistance fire retardant, toughner, oxidation inhibitor and secondary process auxiliary agent after drying treatment;
Step 3, join by main feeding the compound formed after evenly mixing in twin screw extruder, and glass fibre adds by the twin screw extruder venting port, after mixing in twin screw extruder, extrudes;
Step 4, complete preparation finally by crossing tie rod, cooling, pelletizing, drying treatment;
Another preferred embodiment of the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, the length-to-diameter ratio L/D=40 of described twin screw extruder: 1, processing temperature is between 230～270 ℃, 600 rev/mins of screw speeds, and vacuum pressure is controlled at 0.06-0.08MPa.
Another preferred embodiment of the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to the present invention, glass fibre is alkali free glass fibre, filament diameter is 13 μ m; Difficult combustion resin is one or more in PPS, PPO, PC; Described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more; Described toughner is one or more in POE-g-MAH, EPDM-g-MAH, SEBS-g-MAH, PE-g-MAH; Described oxidation inhibitor is a kind of in Hinered phenols antioxidant 1098 and phosphite kind antioxidant 168 or with the weight ratio combination of 1: 1; The secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
Below choosing concrete starting material is that example describes preparation method of the present invention in detail:
Implement one: select the Nylon 6 of viscosity 2.7Pa.s, each component be Nylon 6: PA6 (Nylon 6) 40%, PPS:10%, POE-g-MAH:2.5%, red phosphorus master batch by weight ratio: 16%, oxidation inhibitor: 0.2%, secondary process auxiliary agent: 0.3% and glass fibre: 30%.
Above-mentioned Nylon 6, PPS, POE-g-MAH, red phosphorus master batch, oxidation inhibitor and secondary process auxiliary agent are put into to homogenizer mixing 3-4 minute in proportion, by main feeding, join in twin screw extruder, glass fibre adds by venting port, then use the twin screw extruder extruding pelletization, processing temperature is between 230～270 ℃, 600 rev/mins of screw speeds, vacuum pressure is controlled at 0.06-0.08MPa.
In this implementation method, the specific performance of gained halogen-free flameproof glass fiber reinforced nylon 6 particles after injection moulding is:
Tensile strength: 120mpa, flexural strength: 152mpa, modulus in flexure: 7300mpa, notched Izod impact strength: 9.2KJ/m
2, UL945-VA level, 1.6mm.
Implement two: select the Nylon 6 of viscosity 2.7pa.s, each component be PA6 (Nylon 6) by weight ratio: 30%, PPO:20%, POE-g-MAH:2.5%, glass fibre: 30%, red phosphorus master batch: 17%, oxidation inhibitor: 0.2% and the secondary process auxiliary agent: 0.3%.
Above-mentioned PA6 (Nylon 6), PPO, POE-g-MAH, red phosphorus master batch, oxidation inhibitor and secondary process auxiliary agent are put into homogenizer mixing 3-4 minute in proportion, by main feeding, join in twin screw extruder, glass fibre adds by venting port, then use the twin screw extruder extruding pelletization, processing temperature is between 230～270 ℃, 600 rev/mins of screw speeds, vacuum pressure is controlled at 0.06-0.08MPa.
In this implementation method, the specific performance of gained halogen-free flameproof glass fiber reinforced nylon 6 particles after injection moulding is:
Tensile strength: 130mpa, flexural strength: 163mpa, modulus in flexure: 7600mpa, notched Izod impact strength: 11.2KJ/m
2, UL945-VA level, 1.6mm.
Implement three: selecting viscosity is the 2.7pa.s Nylon 6, and each component is PA6 (Nylon 6) by weight ratio: 29%, PPS:17%, EPDM-g-MAH:2.5%, red phosphorus master batch: 15%, sb203:3%, oxidation inhibitor: 0.2%, secondary process auxiliary agent: 0.3% and glass fibre 30%.
Aforesaid combination (except glass fibre) is put into to the homogenizer mixing in proportion and within 3-4 minute, join twin screw extruder, glass fibre adds by the venting port of twin screw extruder, utilize the twin screw extruder extruding pelletization, processing temperature is: between 230～270 ℃, screw speed is 600 rev/mins, and vacuum pressure is controlled at 0.06-0.08MPa.
In this enforcement, gained halogen-free flameproof glass fiber reinforced nylon 6 particles in the specific performance of injection moulding are:
Tensile strength: 135mpa, flexural strength: 151mpa, modulus in flexure: 7800mpa, notched Izod impact strength: 10.5KJ/m
2, UL94,5-VA level, 1.6mm.
Implement 4: selecting viscosity is the 2.7pa.s Nylon 6, and each component is PA6 (Nylon 6) by weight ratio: 29%, PPS:17%, EPDM-g-MAH:2.5%, red phosphorus master batch: 10%, N/P fire retardant: 8%, oxidation inhibitor: 0.2%, secondary process auxiliary agent: 0.3% and glass fibre 30%.
Aforesaid combination (except glass fibre) is put into to the homogenizer mixing in proportion and within 3-4 minute, join twin screw extruder, glass fibre adds by the venting port of twin screw extruder, utilize the twin screw extruder extruding pelletization, processing temperature is: between 230～270 ℃, screw speed is 600 rev/mins, and vacuum pressure is controlled at 0.06-0.08MPa.
In this enforcement, gained halogen-free flameproof glass fiber reinforced nylon 6 particles in the specific performance of injection moulding are:
Tensile strength: 1128mpa, flexural strength: 158mpa, modulus in flexure: 7620mpa, notched Izod impact strength: 10.5KJ/m
2, UL94,5-VA level, 1.6mm.
Claims (10)
1. halogen-free flameproof glass fiber reinforced nylon 6 particles, is characterized in that: comprise by weight 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent.
2. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles, it is characterized in that: described glass fibre is alkali free glass fibre, filament diameter is 13 μ m.
3. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles is characterized in that: described difficult combustion resin is one or more in PPS, PPO, PC.
4. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles, it is characterized in that: described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more.
5. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles, it is characterized in that: described toughner is one or more in polyolefin elastomer grafted maleic anhydride, grafting maleic anhydride with ethylene propylene terpolymer, polystyrene-poly ethene-polybutene-polystyrene section multipolymer, Research of Grafting Malaic Anhydride Onto Polyethylene.
6. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles is characterized in that: described oxidation inhibitor is a kind of in Hinered phenols antioxidant 1098 and phosphite kind antioxidant 168 or with the weight ratio combination of 1: 1.
7. a kind of halogen-free flameproof glass fiber reinforced nylon according to claim 16 particles, it is characterized in that: described secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
8. the preparation method of halogen-free flameproof glass fiber reinforced nylon 6 particles is characterized in that comprising the following steps:
Step 1, choose 20～50% Nylon 6s, 10～35% glass fibre, 10～30% difficult combustion resins, 10～20% red phosphorus masterbatch, 0～15% assistance fire retardant, 2～10% toughner, 0.1～1% oxidation inhibitor and 0.2～1.5% secondary process auxiliary agent by weight;
Step 2 is evenly mixed Nylon 6, difficult combustion resin, red phosphorus masterbatch, assistance fire retardant, toughner, oxidation inhibitor and secondary process auxiliary agent after drying treatment;
Step 3, join by main feeding the compound formed after evenly mixing in twin screw extruder, and glass fibre adds by the twin screw extruder venting port, after mixing in twin screw extruder, extrudes;
Step 4, complete preparation finally by crossing tie rod, cooling, pelletizing, drying treatment.
9. the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to claim 8, it is characterized in that: the length-to-diameter ratio L/D=40 of described twin screw extruder: 1, processing temperature is between 230～270 ℃, 600 rev/mins of screw speeds, and vacuum pressure is controlled at 0.06-0.08MPa.
10. the preparation method of a kind of halogen-free flameproof glass fiber reinforced nylon 6 particles according to claim 8, it is characterized in that: glass fibre is alkali free glass fibre, filament diameter is 13 μ m; Difficult combustion resin is one or more in PPS, PPO, PC; Described assistance fire retardant is antimonous oxide, N/P halogen-free flame retardants, inorganic combustion inhibitor Mg (OH)
2with inorganic combustion inhibitor AL (OH)
3in one or more; Described toughner is one or more in polyolefin elastomer grafted maleic anhydride, grafting maleic anhydride with ethylene propylene terpolymer, polystyrene-poly ethene-polybutene-polystyrene section multipolymer, Research of Grafting Malaic Anhydride Onto Polyethylene; Described oxidation inhibitor is a kind of in Hinered phenols antioxidant 1098 and phosphite kind antioxidant 168 or with the weight ratio combination of 1: 1; The secondary process auxiliary agent is mainly lubricant, and described lubricant is one or more in calcium stearate, vinyl bis-stearamides (EBS), OP wax, erucicamide, silicone.
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Application publication date: 20131218 |