CN103507275A - Thermoplastic composite material molding method - Google Patents
Thermoplastic composite material molding method Download PDFInfo
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- CN103507275A CN103507275A CN201210211131.5A CN201210211131A CN103507275A CN 103507275 A CN103507275 A CN 103507275A CN 201210211131 A CN201210211131 A CN 201210211131A CN 103507275 A CN103507275 A CN 103507275A
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
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- Injection Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention belongs to the technical field of polymer composite materials, and discloses a thermoplastic composite material molding method, which comprises the following steps: placing 1-30 parts of a prepreg in an injection molding machine mold cavity, closing the mold, and preheating the mold; adding a thermoplastic composition or a thermoplastic resin to a material hopper, heating and melting to obtain a melt, and injecting 70-99 parts of the melt; and carrying out pressure keeping, demolding and molding to obtain the thermoplastic composite material. The molding method has characteristics of simpleness and rapidness, wherein the material can be integrally molded with the molding method.
Description
Technical field
The invention belongs to technical field of polymer composite materials, relate to a kind of forming method of thermoplastic composite.
Background technology
Thermoplastic composite refers to take thermoplastic resin as matrix, the composite that the various fibers of take are made as reinforcing material.Thermoplastic resin refer in certain temperature range, there is thermoplastic repeatedly, the resin kind of hardening by cooling characteristic.Thermoplastic resin lipid species is a lot, generally can be divided into resins for universal use (also claiming general-purpose plastics) as polypropylene, polyvinyl chloride, polyethylene, polystyrene etc., engineering resin (also claiming engineering plastics) is as nylon, polyformaldehyde, polyphenylene oxide, Merlon, polyester etc., and special engineered resin (also claiming special engineering plastics) is as polyether-ether-ketone, polyphenylene sulfide, polyimides etc.Thermoplastic resin is due to easy to process, recoverable, and combination property is good, is widely used in industry-by-industry.
Thermoplastic resin by fiber reinforcement after, intensity, modulus, shock resistance and heat resistance have comprehensive raising, purposes is widened greatly.Short fiber strengthens the main enhancement method that thermoplastic resin is thermoplastic composite, by extruder granulation, then by injection machine injection mo(u)lding.Injection mo(u)lding generally can be divided into injection moulding (injection)-pressurize-cooling-4 of demouldings stage.The advantages such as product that this forming method has that technique is simple, molding cycle is short, can molding structure more complicated.Yet the defect of this technique is also a lot: (1) injection pressure, dwell pressure when injection moulding is generally all very high, is 30-180Mpa; High injection pressure just starts to break in the time of can causing melt leading edge to enter die cavity, and high dwell pressure can make melt increase internal stress in cooling process, final molding goods there will be break, the phenomenon such as warpage, layering, poor mechanical property, product defect rate is higher; High injection, dwell pressure consume energy high, during designing mould, must guarantee the withstand voltage condition of mould, and die cost is very high.(2) fibre length is to determine composite materials property especially intensity and the whether excellent key factor of shock resistance.In mixing and injection moulding process, fiber can be shredded gradually, and in end article, fibre length is 0.1-0.7mm.The composite material strength obtaining by injection mo(u)lding and shock resistance are not special outstanding.In general, long fibre has better enhancing effect than short fiber.In order to make the fibre length long enough in goods, people have carried out a large amount of research to the moulding process of long fibre, continuous fiber reinforced thermoplastic resin and moulded products.Wherein, representative is GMT composite and technique thereof.GMT a kind ofly be take thermoplastic resin as matrix, and the composite that continuous fiber or long fibre are reinforcing material, because fiber in goods process does not rupture substantially, so mechanical property is excellent, especially has outstanding high impact resistance.GMT moulding process is roughly divided into following step: blanking-Bear-grudge expects preheating-press mold-cutting edge-finished product, and during moulding, pressure is little, and the moulded products cycle is short, and automaticity is higher.But GMT composite voidage is high, defect rate is high, quality of item is unstable, and moulding process can only some products simple in structure of moulding, and these have all restricted its development.
Summary of the invention
In order to address the above problem, the object of this invention is to provide a kind of forming method of thermoplastic composite.
Technical scheme of the present invention is as follows:
The forming method that the invention provides a kind of thermoplastic composite, the method comprises the following steps:
(1) 1 ~ 30 part of prepreg is placed in to injection machine mould die cavity, matched moulds, mould and die preheating;
(2) thermoplastic compounds or thermoplastic resin are added in material bin, heating and melting becomes melt, injects 70 ~ 99 parts;
(3) pressurize, the demoulding, moulding obtains thermoplastic composite.
Described prepreg is a kind of in unidirectional prepreg tape or preimpregnation cloth.
Described thermoplastic compounds or the melt index >=30g/10min of thermoplastic resin.
The temperature of described preheating is 20 ~ 150 ℃.
The pressure of described injection is 0.1 ~ 4Mpa, and the time is 1 ~ 60S.
Described melt is when injection, and barrel temperature is 140 ~ 300 ℃ of feeding section 100 ~ 250℃， compression sections, 140 ~ 300 ℃ of homogenizing zones.
The time of described pressurize is 0 ~ 60S, and pressure is 0 ~ 4Mpa.
The hot strength of described thermoplastic composite is greater than 100Mpa.
Thermoplastic resin composition described in the present invention and prepreg obtain by homemade method.
The preparation method of thermoplastic compounds is as follows:
Take 10-100 part thermoplastic resin, 0-100 part filler, 0-40 part flexibilizer, 0-20 part fire retardant, 0-10 part auxiliary agent, stir 5-20 minute by mixer.Compound is added to double screw extruder by hopper place, and glass spout place adds glass fibre 0-60 part, and extruder temperature interval is 100-400 ℃, and extruded velocity is 50-500 rev/min, traction, and pelletizing, prepares thermoplastic compounds.
The preparation method of unidirectional prepreg tape:
Take 5-80 part thermoplastic resin, 20-95 part fiber, 0-80 part filler, 0-60 part flexibilizer, 0-60 part fire retardant, 0-10 part auxiliary agent, by mixer, stir 5-20 minute.Compound is added in screw extruder by hopper place, extruder temperature interval is 100-400 ℃, extruded velocity is 50-500 rev/min, extruded stock is clamp-oned in melt tank, and keeping melt tank temperature is 100-400 ℃, from a side of melt tank, introduces 20-95 part fiber, opposite side is drawn fiber, fiber hauling speed is 1 meter-100 ms/min, through press compacting, prepares unidirectional prepreg tape.
The preparation method of preimpregnation cloth:
Take 5-80 part thermoplastic resin, 20-95 part fiber, 0-80 part filler, 0-60 part flexibilizer, 0-60 part fire retardant, 0-10 part auxiliary agent, by mixer, stir 5-20 minute.Compound is added in screw extruder by hopper place, and extruder temperature interval is 100-400 ℃, and extruded velocity is 50-500 rev/min, film extrusion.Thickness 1-10mm.Fibrofelt or fiber cloth and thermoplastic resin film is alternately laminated, and after fixture clips, through traction, by the thermal treatment zone, heating-up temperature is 100-400 ℃, through press compacting, prepares preimpregnation cloth.
In the present invention, thermoplastic resin composition is made by the component including, but not limited to following parts by weight: 10-100 part thermoplastic resin, 0-100 part filler, 0-60 part fiber, 0-40 part flexibilizer, 0-20 part fire retardant, 0-10 part auxiliary agent.Thermoplastic resin lipid species is selected from one or more in polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyformaldehyde, polyamide, PETG, polybutylene terephthalate (PBT).
Prepreg is made by the component including, but not limited to following parts by weight: 5 ~ 80 parts of thermoplastic resins, 20 ~ 95 parts of fibers, 0 ~ 80 part of filler, 0 ~ 60 part of flexibilizer, 0 ~ 60 part of fire retardant, 0-10 part auxiliary agent.Thermoplastic resin in prepreg is selected from one or more in polypropylene, polyethylene, polystyrene, polyvinyl chloride, polyamide, PETG, polybutylene terephthalate (PBT), Merlon, polyformaldehyde, polyphenylene oxide, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, polyether-ether-ketone or polyphenylene sulfide;
Described polyamide is further selected from one or more of polyamide 6, polyamide 66, polyamide 1010, polyamide 11 or polyamide 12.
Described auxiliary agent comprises at least one of following component: antioxidant, light stabilizer, antistatic additive, coupling agent, lubricant, antiseptic, hydrolysis-resisting agent, pigment.
Described fiber comprises one or more in carbon fiber, glass fibre, metallic fiber, polyester fiber, Fypro, ceramic fibre or Fanglun 1414; Wherein: one or more in Fypro preferred polyamide 6 fibers, Nylon66, polyamide 1010 fiber, polyamide 11 fibers or polyamide 12 fibers.
Described filler is inorganic filler; One or more in preferably talc powder, calcium carbonate, barium sulfate, glass microballoon, glass dust or carbon black.
Described flexibilizer is selected from one or more in anti-impact resin, rubber, anti-impact resin graft polymers or graft rubber polymer, optimal ethylene-octene copolymer (POE), haloflex (CPE), methacrylate-butadiene-styrene terpolymer (MBS), ethylene-vinyl acetate copolymer (EVA), butyl acrylate-methylmethacrylate copolymer, ethylene-methyl methacrylate methyl terpolymer, SBS (SBS), EP rubbers (EPR), ethylene propylene diene rubber (EPDM), one or more in butyl rubber or acrylonitrile-butadiene rubber (NBR).
Described fire retardant is selected from one or more in halogenated flame retardant, phosphorus flame retardant, nitrogenated flame retardant, phosphorus-halogenated flame retardant or phosphorus-nitrogenated flame retardant; One or more in preferred magnesium hydroxide, aluminium hydroxide, APP, eight bromo ether, triphenyl phosphate, HBCD, Firebrake ZB, TDE, red phosphorus, APP, triphenyl phosphate, deca-BDE, antimony oxide, triphenyl phosphate, melamine or Firebrake ZB.
Described antioxidant is selected from one or more of Hinered phenols, hindered amines, phosphorous acid esters or monothioester class; One or more in preferred antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 626, antioxidant 300, antioxidant 1330, antioxidant 619F or irgasfos 168.
Described coupling agent is selected from one or more in silane coupler, titanate coupling agent or zirconium class coupling agent; One or more in preferred vinyl trichlorosilane, VTES, γ-(2,3-glycidoxy) propyl trimethoxy silicane or Y-chloropropyl triethoxy silicon or isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters.
Described light stabilizer is selected from one or more in ultra-violet absorber, radical scavenger, quencher and photomask agent, gather-{ [6-[(1 of preferred light, 1, 3, 3,-tetramethyl butyl)-amido] 1, 3, 5,-triazine-2, 4-bis-bases] [(2, 2, 6, 6-tetramethyl-piperidyl)-imido grpup]-1, 6-hexane two bases-[(2, 2, 6, 6-tetramethyl-piperidyl)-imido grpup] } (being called for short stabilizing agent 944), poly-succinic (4-hydroxyl-2, 2, 6, 6-tetramethyl-1-piperidines ethanol) ester (being called for short light stabilizer 622), poly-{ [6-[(1, 1, 3, 3-tetramethyl butyl) amino]]-1, 3, 5-triazine-2, 4-two [(2, 2, 6, 6,-tetramethyl-4-piperidyl) imino group]-1, 6-oneself two support [(2, 2, 6, 6-tetramethyl-4-piperidyl) imino group] } and poly-succinic (4-hydroxyl-2, 2, 6, 6-tetramethyl-1-piperidines ethanol) compound of ester (being called for short light stabilizer 783) or decanedioic acid two (1, 2, 2, 6, 6-pentamethyl-4-piperidines) ester and 1-(methyl)-8-(1, 2, 2, 6, 6-pentamethyl-4-piperidines) one or more in the mixture of sebacate (being called for short light stabilizer 292).
Described lubricant comprises one or more in zinc stearate, calcium stearate, stearic acid, oleamide, erucyl amide, stearmide or ethylenebisstearamide.
That described antistatic additive is selected from is cationic, a kind of in anionic, amphoteric ion type, nonionic or macromolecule permanent antistatic agent or how more than one.Preferred, polyethers esteramides, epoxypropane copolymerization thing, ethylene oxide.
Described antiseptic is selected from one or more in inorganic antiseptic or organic antibacterial agent.Preferred silver-loaded zirconium phosphate antiseptic, Ag Loaded Zeolite Antimicrobial.
Described hydrolysis-resisting agent is selected carbodiimides.
Described pigment is selected carbon black.
The present invention compared with the existing technology, has the following advantages and beneficial effect:
1, forming method of the present invention is simple, quick, raw material can be one-body molded; By the composite smooth outer surface of forming method moulding of the present invention, glossiness is high, and outward appearance is good, and mechanical property is excellent; Prepreg and injection moulding partly the thermoplastic mechanical property of use can mutually combine, the mobility strong that material is selected.
2, forming method injection pressure of the present invention is low, has reduced finished product percent defective, has reduced energy consumption; Mould can adopt Cast Aluminum Dies, is easy to design, exploitation and the processing and manufacturing of mould, can save material cost and construction cycle.
3, moulded products internal stress of the present invention is low, and intensity is high, and shock resistance is good, and mechanical property is excellent.
The specific embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Unless otherwise defined, all scientific and technical terminologies of using herein have identical meanings as in common knowledge in the those of ordinary skill in field under the present invention.The in the situation that of contradiction, to comprise that this description of definition is as the criterion.
The invention describes suitable method and material, but be similar to or be equivalent to that the method for the invention and material can be used for implementing or check the present invention.
In the present invention, described umber is all parts by weight.
In the present invention, described injection machine (also claiming injection moulding machine, injector) refers under certain pressure, and plastics or rubber are injected into a kind of former that tool in pattern is made various shapes.
In the present invention, described injection mo(u)lding relates generally to thermoplastic plastic injecting field, refers under certain pressure, and the thermoplastic resin of melted by heating or thermoplastic compounds are injected in the die cavity of mould, after cooling curing, obtain a kind of forming method of molded article.
The injection temperature, the injection pressure that in the present invention, relate in Shooting Technique should be adjusted according to different injection molding materials and the prepreg kind in mould.
In the present invention, described prepreg is implication known in the field, refers to the fiber of impregnating resin system or the intermediate materials of its fabric drying or pre-polymerization for the manufacture of polymer matrix composites.Unidirectional prepreg tape claims again without latitude cloth, refer to pre-soaked on fiber filament on a kind of intermediate products of resin; Preimpregnation cloth refers to a kind of intermediate products at fiber cloth (comprising plain, twill, satin) or the upper pre-soaked upper resin of fibrofelt (comprising continuous felt, Nomex, continuous needle felt).
In the present invention, described thermoplastic compounds refers to take thermoplastic resin as matrix, adds a kind of material that the auxiliary materials such as various fibers, filler, flexibilizer, fire retardant, antistatic additive, ultraviolet-resistant aid prepare by blending equipments such as extruders.
The standard of Measurement of Material Mechanical Performance of the present invention is as follows:
The test of tensile property: GB1040/T-1992, plastic tensile method for testing performance, draw speed 5mm/min.
The bending property method of testing of the test of bending property: GB/T 9341 plastics, rate of bending 10mm/min.
The test of impact property: cantilever beam notched Izod impact strength is according to GB/T1843-1996, plastics izodtest method.
Embodiment 1
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 95 parts of glass fibres, 10 parts of polypropylene.
Polypropene composition melt index is 30g/10min, is prepared from: 59.6 parts of polypropylene, 15 parts of POEs, 25 parts of talcum powder, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 5 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 40 ℃;
(2) polypropene composition is added in material bin, heating and melting becomes melt, injects 95 parts, injection pressure 2Mpa, inject time 15S, barrel temperature is 190 ℃ of feeding section 160℃， compression sections, 190 ℃ of homogenizing zones;
(3) dwell time 1S, dwell pressure 1Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 2
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 70 parts of glass fibres, 29.4 parts of polypropylene, 0.3 part of antioxidant 1010,0.3 part of irgasfos 168.
Polypropene composition melt index is 40g/10min, is prepared from: 69.6 parts of polypropylene, 10 parts of deca-BDEs, 5 parts of antimony oxides, 15 parts of calcium carbonate, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 15 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 50 ℃;
(2) polypropene composition is added in material bin, heating and melting becomes melt, injects 85 parts, injection pressure 1.5Mpa, inject time 20S, barrel temperature is 200 ℃ of feeding section 170℃， compression sections, 200 ℃ of homogenizing zones;
(3) dwell time 10S, dwell pressure 1.4Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 3
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 40 parts of polyester fibers, 49.4 parts of polypropylene, 10 parts of talcum powder, 0.3 part of antioxidant 1010,0.3 part of irgasfos 168.
Polypropene composition melt index is 80g/10min, is prepared from: 89 parts of polypropylene, 10 parts of POEs, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 20 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 30 ℃;
(2) polypropene composition is added in material bin, heating and melting becomes melt, injects 80 parts, injection pressure 1Mpa, inject time 10S, barrel temperature is 190 ℃ of feeding section 160℃， compression sections, 190 ℃ of homogenizing zones;
(3) dwell time 1S, dwell pressure 1Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 4
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 50 parts of carbon fibers, 44.4 parts of polypropylene, 5 parts of POEs, 0.3 part of antioxidant 1010,0.3 part of irgasfos 168.
Acrylic resin melt index is 200g/10min.
By following method molded thermoplastic composite.
(1) 30 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 30 ℃;
(2) acrylic resin is added in material bin, heating and melting becomes melt, injects 70 parts, injection pressure 0.1Mpa, inject time 1S, barrel temperature is 180 ℃ of feeding section 120℃， compression sections, 180 ℃ of homogenizing zones;
(3) demoulding, moulding obtains thermoplastic composite.
Embodiment 5
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 80 parts of glass fibres, 20 parts of polypropylene.
Polypropene composition melt index is 30g/10min, is prepared from: 49.6 parts of polypropylene, 10 parts of polypropylene grafted maleic anhydrides, 40 parts of glasses, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 13 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 30 ℃;
(2) polypropene composition is added in material bin, heating and melting becomes melt, injects 87 parts, injection pressure 4Mpa, inject time 60S, barrel temperature is 200 ℃ of feeding section 140℃， compression sections, 200 ℃ of homogenizing zones;
(3) demoulding, moulding obtains thermoplastic composite.
Embodiment 6
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 70 parts of glass fibres, 29.5 parts of polyamide 6s, 0.2 part of antioxidant 1010,0.3 part of irgasfos 168.
Daiamid composition melt index is 40g/10min, is prepared from: 59.6 parts of polyamide 6s, 40 parts of talcum powder, 1098,0.2 parts of antioxidant 626 of 0.2 part of antioxidant by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 5 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 30 ℃;
(2) daiamid composition is added in material bin, heating and melting becomes melt, injects 95 parts, injection pressure 3Mpa, inject time 50S, barrel temperature is 240 ℃ of feeding section 190℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 60S, dwell pressure 4Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 7
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 60 parts of Fanglun 1414s, 39.5 parts of polyamide 66s, 1098,0.3 parts of irgasfos 168s of 0.2 part of antioxidant.
Daiamid composition melt index is 35g/10min, is prepared from: 69 parts of polyamide 66s, 30 parts of glass fibres, 0.6 part of oleamide, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 16 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 150 ℃;
(2) daiamid composition is added in material bin, heating and melting becomes melt, injects 84 parts, injection pressure 3Mpa, inject time 50S, barrel temperature is 270 ℃ of feeding section 200℃， compression sections, 270 ℃ of homogenizing zones;
(3) dwell time 50S, dwell pressure 3Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 8
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 40 parts of Fanglun 1414s, 59.5 parts of polyamide 6s, 1098,0.3 parts of antioxidant 626 of 0.2 part of antioxidant.
Daiamid composition melt index is 45g/10min, is prepared from: 79.4 parts of polyamide 6s, 15 parts of POEs, 5 parts of polypropylene grafted maleic anhydrides, 1098,0.2 parts of irgasfos 168s of 0.2 part of antioxidant by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 20 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 30 ℃;
(2) daiamid composition is added in material bin, heating and melting becomes melt, injects 80 parts, injection pressure 3Mpa, inject time 50S, barrel temperature is 240 ℃ of feeding section 180℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 50S, dwell pressure 3Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 9
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 60 parts of carbon fibers, 40 parts of mylar.
PETG composition melt index is 55g/10min, component by following parts by weight is prepared from: 63 parts of polybutylene terephthalate (PBT)s, 10 parts of TDEs, 5 parts of antimony oxides, 0.2 part of antioxidant 1010,0.3 part of irgasfos 168,20 parts of glass fibres, 1 part of carbodiimides, 1.5 parts of carbon blacks.
By following method molded thermoplastic composite.
(1) 8 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 80 ℃;
(2) PETG composition is added in material bin, heating and melting becomes melt, injects 92 parts, injection pressure 3Mpa, inject time 50S, barrel temperature is 240 ℃ of feeding section 180℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 50S, dwell pressure 3Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 10
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 60 parts of glass fibres, 20 parts of polypropylene, 20 parts of polyethylene.
Polyphenylacetylene combination melt index is 30g/10min, is prepared from: 84.6 parts of polystyrene, 15 parts of red phosphorus, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168 by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 18 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 80 ℃;
(2) polyphenylacetylene combination is added in material bin, heating and melting becomes melt, injects 82 parts, injection pressure 3Mpa, inject time 10S, barrel temperature is 180 ℃ of feeding section 140℃， compression sections, 180 ℃ of homogenizing zones;
(3) dwell time 20S, dwell pressure 3Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 11
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 55 parts of glass fibres, 45 parts of PETGs.
PETG composition melt index is 40g/10min, component by following parts by weight is prepared from: 34 parts of PETGs, 20 parts of polybutylene terephthalate (PBT)s, 45 parts of glass fibres, 0.6 part of oleamide, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168.
By following method molded thermoplastic composite.
(1) 15 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 80 ℃;
(2) PETG composition is added in material bin, heating and melting becomes melt, injects 85 parts, injection pressure 4Mpa, inject time 15S, barrel temperature is 240 ℃ of feeding section 160℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 10S, dwell pressure 4Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 12
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 30 parts of glass fibres, 70 parts of polybutylene terephthalate (PBT)s.
Polybutylene terephthalate (PBT) resin combination melt index is 100g/10min, is prepared from: 60 parts of polybutylene terephthalate (PBT)s, 40 parts of PTTs by the component of following parts by weight.
By following method molded thermoplastic composite.
(1) 10 parts of unidirectional prepreg tapes are placed in to injection machine mould die cavity, matched moulds, mold preheating temperature is 80 ℃;
(2) polybutylene terephthalate (PBT) composition is added in material bin, heating and melting becomes melt, injects 90 parts, injection pressure 0.5Mpa, inject time 15S, barrel temperature is 240 ℃ of feeding section 180℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 2S, dwell pressure 0.5Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 13
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 95 parts of glass fibres, 5 parts of polypropylene, 2 parts of VTESs, 2 parts of stearic acid.
Polyethylene composition melt index is 30g/10min, is prepared from: 80 parts of polyethylene, 20 parts of polypropylene by the component of following parts by weight, 20 parts of glass fibres, 10 parts of carbon blacks, 20 parts of POEs, 1 part of antioxidant 1010,1 part of irgasfos 168,20 parts of magnesium hydroxides, 2 parts of vinyl trichlorosilanes, 2 parts of light stabilizers 944,10 parts of calcium stearates, 2 parts of polyether ester amides, 2 parts of Ag Loaded Zeolite Antimicrobials.
By following method molded thermoplastic composite.
(1) 30 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 80 ℃;
(2) polyethylene composition is added in material bin, heating and melting becomes melt, injects 70 parts, injection pressure 3.5Mpa, inject time 25S, barrel temperature is 140 ℃ of feeding section 100℃， compression sections, 140 ℃ of homogenizing zones;
(3) dwell time 20S, dwell pressure 3.5Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 14
Prepreg is selected preimpregnation cloth.Preimpregnation cloth is prepared from by the component of following parts by weight: 20 parts of metallic fibers, 80 parts of polypropylene, 80 parts of glass microballoons, 60 parts of ethylene-vinyl acetate copolymers, 45 parts of TDEs, 15 parts of antimony oxides, 2 parts of VTESs, 2 parts of stearic acid, 1 part of antioxidant 1010,1 part of irgasfos 168,2 parts of γ-(2,3-glycidoxy) propyl trimethoxy silicanes, 2 parts of light stabilizers 292,2 parts of epoxypropane copolymerization things, 2 parts of silver-loaded zirconium phosphate antiseptics.
Polypropene composition melt index is 40g/10min, is prepared from: 100 parts of polypropylene, 100 parts of glass dust by the component of following parts by weight, 5 parts of metallic fibers, 20 parts of ethylene propylene diene rubbers, 1 part of antioxidant 1010,1 part of irgasfos 168,20 portions of triphenyl phosphates, 2 parts of isopropyls three (dioctyl phosphoric acid acyloxy) titanate esters, 622,10 parts of zinc stearates of 2 parts of light stabilizers, 2 parts of ethylene oxides, 2 parts of silver-loaded zirconium phosphate antiseptics.
By following method molded thermoplastic composite.
(1) 30 parts of preimpregnation are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 50 ℃;
(2) polypropene composition is added in material bin, heating and melting becomes melt, injects 70 parts, injection pressure 3Mpa, inject time 20S, barrel temperature is 190 ℃ of feeding section 150℃， compression sections, 190 ℃ of homogenizing zones;
(3) dwell time 20S, dwell pressure 3.5Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 15
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 40 parts of ceramic fibres, 60 parts of polyformaldehyde, 20 parts of carbon blacks, 30 parts of SBSs, 30 parts of melamines, 1 part of VTES, 1 part of erucyl amide, 0.5 part of antioxidant 300,1 part of γ-(2,3-glycidoxy) propyl trimethoxy silicane, 1 part of light stabilizer 944,1 part of ethylene oxide, 1 part of silver-loaded zirconium phosphate antiseptic.
Polyformaldehyde composition melt index is 30g/10min, component by following parts by weight is prepared from: 50 parts of polyformaldehyde, 50 parts of calcium carbonate, 25 parts of glass fibres, 20 parts of acrylonitrile-butadiene rubbers, 1 part of antioxidant 1330,1 part of Y-chloropropyl triethoxy silicon, 783,5 parts of oleamides of 1 part of light stabilizer, 1 part of ethylene oxide, 1 part of silver-loaded zirconium phosphate antiseptic.
By following method molded thermoplastic composite.
(1) 1 part of unidirectional prepreg tape is arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 50 ℃;
(2) polyformaldehyde composition is added in material bin, heating and melting becomes melt, injects 99 parts, injection pressure 3Mpa, inject time 20S, barrel temperature is 240 ℃ of feeding section 180℃， compression sections, 240 ℃ of homogenizing zones;
(3) dwell time 20S, dwell pressure 3.5Mpa, the demoulding, moulding obtains thermoplastic composite.
Embodiment 16
Prepreg is selected unidirectional prepreg tape.Unidirectional prepreg tape is prepared from by the component of following parts by weight: 60 parts of glass fibres, 40 parts of polyvinyl chloride.
Polychloroethylene composition melt index is 50g/10min, is prepared from: 10 parts of polyvinyl chloride, 25 parts of glass fibres by the component of following parts by weight, 30 parts of calcium carbonate, 2 parts of vinyl trichlorosilanes, 5 parts of calcium stearates, 0.5 part of antioxidant 1010,0.5 irgasfos 168.
By following method molded thermoplastic composite.
(1) 25 parts of unidirectional prepreg tapes are arranged in injection machine mould die cavity, matched moulds, mold preheating temperature is 20 ℃;
(2) polychloroethylene composition is added in material bin, heating and melting becomes melt, injects 75 parts, injection pressure 2Mpa, inject time 20S, barrel temperature is 190 ℃ of feeding section 130℃， compression sections, 190 ℃ of homogenizing zones;
(3) dwell time 20S, dwell pressure 2Mpa, the demoulding, moulding obtains thermoplastic composite.
The performance test results of embodiment 1 ~ 16 is in Table 1.
Table 1
| Hot strength (Mpa) | Elongation at break | Bending strength (Mpa) | Notched Izod impact strength (kJ/m 2) | |
| Embodiment 1 | 211 | 5.1 | 223 | 113.2 |
| Embodiment 2 | 310 | 5.5 | 313 | 155.2 |
| Embodiment 3 | 83 | 36 | 86 | Punching is (5j) constantly |
| Embodiment 4 | 518 | 2.3 | 533 | Punching is (5j) constantly |
| Embodiment 5 | 255 | 2.1 | 311 | 144 |
| Embodiment 6 | 285 | 1.3 | 331 | 165.5 |
| Embodiment 7 | 512 | 2.5 | 603 | Punching is (5j) constantly |
| Embodiment 8 | 487 | 11.3 | 522 | Punching is (5j) constantly |
| Embodiment 9 | 310 | 5.3 | 321 | 153.3 |
| Embodiment 10 | 370 | 2.1 | 370 | Punching is (5j) constantly |
| Embodiment 11 | 301 | 1.4 | 324 | 178.8 |
| Example example 12 | 213 | 6.5 | 222 | 79 |
| Embodiment 13 | 721 | 1.3 | 749 | Punching is (5J) constantly |
| Embodiment 14 | 212 | 3.1 | 251 | 98.3 |
| Embodiment 15 | 180 | 1.4 | 199 | 60.2 |
| Embodiment 16 | 333 | 3.1 | 357 | 164.3 |
By the mechanical property contrast (table 1) of above-mentioned embodiment, comparative example, can find out, the thermoplastic composite of the inventive method moulding has the characteristics such as high strength, high impact resistance, is applicable to automobile, train, steamer, aviation, building, physical culture, military project, traffic, water conservancy projects, household electrical appliances, power equipment, electronic applications.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (8)
1. a forming method for thermoplastic composite, is characterized in that: the method comprises the following steps:
(1) 1 ~ 30 part of prepreg is placed in to injection machine mould die cavity, matched moulds, mould and die preheating;
(2) thermoplastic compounds or thermoplastic resin are added in material bin, heating and melting becomes melt, injects 70 ~ 99 parts;
(3) pressurize, the demoulding, moulding obtains thermoplastic composite.
2. the forming method of thermoplastic composite according to claim 1, is characterized in that: described prepreg is a kind of in unidirectional prepreg tape or preimpregnation cloth.
3. the forming method of thermoplastic composite according to claim 1, is characterized in that: described thermoplastic compounds or the melt index >=30g/10min of thermoplastic resin.
4. the forming method of thermoplastic composite according to claim 1, is characterized in that: the temperature of described preheating is 20 ~ 150 ℃.
5. the forming method of thermoplastic composite according to claim 1, is characterized in that: the pressure of described injection is 0.1 ~ 4Mpa, and the time is 1 ~ 60S.
6. the forming method of thermoplastic composite according to claim 1, is characterized in that: described melt is when injection, and barrel temperature is 140 ~ 300 ℃ of feeding section 100 ~ 250℃， compression sections, 140 ~ 300 ℃ of homogenizing zones.
7. the forming method of thermoplastic composite according to claim 1, is characterized in that: the time of described pressurize is 0 ~ 60S, and pressure is 0 ~ 4Mpa.
8. the forming method of thermoplastic composite according to claim 1, is characterized in that: the hot strength of described thermoplastic composite is greater than 100Mpa.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038231A (en) * | 2015-07-31 | 2015-11-11 | 苏州天健竹业科技有限公司 | Anti-impact composite material for outdoor fitness equipment and preparation method of anti-impact composite material |
| CN105542309A (en) * | 2016-01-27 | 2016-05-04 | 合肥瑞瑶环保建材科技有限公司 | High-strength polypropylene reinforced plastic septic tank and processing technology thereof |
| CN108327314A (en) * | 2017-01-20 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of injection molding method of sandwich type fiber reinforced thermolplastic composite material |
| CN112848389A (en) * | 2020-12-21 | 2021-05-28 | 中南大学 | Method for rapidly forming hybrid fiber reinforced thermoplastic composite structure |
| CN113085084A (en) * | 2021-04-09 | 2021-07-09 | 衡水瑞纤新材料科技有限公司 | High-performance continuous fiber reinforced thermoplastic resin composite material and preparation method thereof |
| WO2023103955A1 (en) * | 2021-12-08 | 2023-06-15 | 华为技术有限公司 | Radome and wireless communication system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04259530A (en) * | 1991-02-13 | 1992-09-16 | Toyota Motor Corp | Manufacture of hollow frp molding |
| CN1108269A (en) * | 1993-12-28 | 1995-09-13 | 川崎制铁株式会社 | Reinforcing polypropylene resin with high containing of glasfibres and products of same |
| CN1960865A (en) * | 2004-04-30 | 2007-05-09 | 三博株氏会社 | Thermoplastic compound plate-shaped material, method for manufacturing the same and articles manufactured using the same |
| CN101122362A (en) * | 2007-09-19 | 2008-02-13 | 哈尔滨工业大学 | A fiber reinforced composite lattice sandwich panel and its manufacturing method |
| CN101913251A (en) * | 2010-07-27 | 2010-12-15 | 中北大学 | Liquid Molding Fusible Core Forming Technology for Complicated Components of Resin Matrix Composite |
-
2012
- 2012-06-26 CN CN201210211131.5A patent/CN103507275A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04259530A (en) * | 1991-02-13 | 1992-09-16 | Toyota Motor Corp | Manufacture of hollow frp molding |
| CN1108269A (en) * | 1993-12-28 | 1995-09-13 | 川崎制铁株式会社 | Reinforcing polypropylene resin with high containing of glasfibres and products of same |
| CN1960865A (en) * | 2004-04-30 | 2007-05-09 | 三博株氏会社 | Thermoplastic compound plate-shaped material, method for manufacturing the same and articles manufactured using the same |
| CN101122362A (en) * | 2007-09-19 | 2008-02-13 | 哈尔滨工业大学 | A fiber reinforced composite lattice sandwich panel and its manufacturing method |
| CN101913251A (en) * | 2010-07-27 | 2010-12-15 | 中北大学 | Liquid Molding Fusible Core Forming Technology for Complicated Components of Resin Matrix Composite |
Non-Patent Citations (2)
| Title |
|---|
| 王汝敏 等: "《聚合物基复合材料 第二版》", 30 April 2011 * |
| 黄晓燕: "《塑料模具技术问答》", 30 September 2009, 化学工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038231A (en) * | 2015-07-31 | 2015-11-11 | 苏州天健竹业科技有限公司 | Anti-impact composite material for outdoor fitness equipment and preparation method of anti-impact composite material |
| CN105542309A (en) * | 2016-01-27 | 2016-05-04 | 合肥瑞瑶环保建材科技有限公司 | High-strength polypropylene reinforced plastic septic tank and processing technology thereof |
| CN108327314A (en) * | 2017-01-20 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of injection molding method of sandwich type fiber reinforced thermolplastic composite material |
| CN112848389A (en) * | 2020-12-21 | 2021-05-28 | 中南大学 | Method for rapidly forming hybrid fiber reinforced thermoplastic composite structure |
| CN113085084A (en) * | 2021-04-09 | 2021-07-09 | 衡水瑞纤新材料科技有限公司 | High-performance continuous fiber reinforced thermoplastic resin composite material and preparation method thereof |
| WO2023103955A1 (en) * | 2021-12-08 | 2023-06-15 | 华为技术有限公司 | Radome and wireless communication system |
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