CN101875772A - Glass fiber reinforced PC composite material and preparation method thereof - Google Patents
Glass fiber reinforced PC composite material and preparation method thereof Download PDFInfo
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- CN101875772A CN101875772A CN2010102278827A CN201010227882A CN101875772A CN 101875772 A CN101875772 A CN 101875772A CN 2010102278827 A CN2010102278827 A CN 2010102278827A CN 201010227882 A CN201010227882 A CN 201010227882A CN 101875772 A CN101875772 A CN 101875772A
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- lubricant
- toughner
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 37
- 239000004417 polycarbonate Substances 0.000 claims abstract description 35
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 31
- 229920000728 polyester Polymers 0.000 claims abstract description 29
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 24
- 239000003381 stabilizer Substances 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 25
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 18
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 13
- 239000005043 ethylene-methyl acrylate Substances 0.000 claims description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 11
- 230000003179 granulation Effects 0.000 claims description 11
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000004220 aggregation Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 claims description 2
- 229940094537 polyester-10 Drugs 0.000 claims description 2
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000012760 heat stabilizer Substances 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001278264 Fernandoa adenophylla Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a glass fiber reinforced PC composite material and a preparation method thereof. The glass fiber reinforced PC composite material comprises the following components in percentage by weight: 45-61% of polycarbonate, 5-20% of saturated polyester, 3-4% of toughener, 0.1-0.3% of heat stabilizer, 0.7-1.1% of lubricant and 25-35% of glass fiber. In the invention, by the combination of the glass fiber, the lubricant and the saturated polyester, the prepared glass fiber reinforced PC composite material has good toughness, high strength and good surface smoothness. The invention successfully solves the problem of difficult balance of strength, toughness and glass fiber dispersibility.
Description
[technical field]
The present invention relates to technical field of polymer materials, relate in particular to a kind of glass fiber reinforced PC composite material and preparation method thereof.
[background technology]
Polycarbonate (PC) is common engineering plastics, with the glass fibre blending after the finished product surface be easy to generate macroscopic irregularitys such as floating fine, flow liner and spray.This is relevant with polycarbonate inherent characteristic, i.e. the structures shape performance.All there are tested recipe and production technique in external major company, the more common 500R that Saudi Arabia SABIC company is arranged, 3412R, 3413R on market, the GP4130G of Korea S Samsung, GP4230G, GP4330G extensively are used in household electrical appliance, auto parts machinery field.The product surface glass of the PC+ glass of these trades mark is uniformly dispersed, and the domestic modification PC+ of producer fiberglass product surface glass disperses inhomogeneous, reunites easily, and promptly Biao Mian glass is the graniphyric distribution.
The main at present CF3100 of Samsung, CF3200, CF3300, the CF3400 etc. of using of handset sheathing material.The G3310M of Japan Supreme Being people company and the 500R of SABIC company can not use on phone housing, and the PC+ glass of Samsung have used unique formula and production technique all because of the toughness reason, in the usage quantity of phone housing much larger than other modified plastics producers.Samsung has used special customized short glass fiber, the special producing technical process, thereby material cost is high especially.And that domestic modification producer suffers from technology is immature and be subjected to the restriction of equipment, and glass fiber reinforced PC composite material is difficult to reach toughness, intensity and surface smoothness equilibrium always.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of good toughness, intensity height, the glass fiber reinforced PC composite material that surface smoothness is good.
Another technical problem that will solve of the present invention provides a kind of preparation method of above-mentioned glass fiber reinforced PC composite material.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of glass fiber reinforced PC composite material is composed of the following components by weight percentage:
Polycarbonate 45～61%
Saturated polyester 5～20%
Toughner 3～4%
Thermo-stabilizer 0.1～0.3%
Lubricant 0.7～1.1%
Glass fibre 25～35%.
Described polycarbonate glues or low adhesive aggregation carbonic ether in being, weight-average molecular weight is between 19000 to 25000; Described saturated polyester is a polyethylene terephthalate.
Described toughner is the grafting POE of ethylene-methyl acrylate and maleic anhydride, and described grafting POE is composed of the following components by weight percentage:
Ethene 0.5--1.5%
Methyl acrylate 0.5--1.5%
Maleic anhydride 0.5--1.5%
POE 95.5％--98.5。
Described thermo-stabilizer is N, N '-two-(3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine.
Described lubricant is the fatty acid amide of modification, and described modified fat acid acid amides is composite by ethylene bis stearic acid amide and silicone lubricant, and both ratios are 2.8～3.2: 1.
Described glass fibre is a short glass fiber, and diameter is 4～17 microns.
The above glass fiber reinforced PC composite material, by weight percentage can be composed of the following components:
Polycarbonate 45～51%
Saturated polyester 10～20%
Toughner 3～4%
Thermo-stabilizer 0.1～0.3%
Lubricant 0.8～1.0%
Glass fibre 25～35%.
A kind of preparation method of above-mentioned glass fiber reinforced PC composite material may further comprise the steps:
(1) takes by weighing polycarbonate, saturated polyester, toughner, thermo-stabilizer, lubricant, glass fibre by above-mentioned component;
(2) polycarbonate, saturated polyester, toughner, thermo-stabilizer, lubricant middling speed are mixed;
(3) with raw material mixed in the step (2) and glass fibre blending, melt extrude granulation through twin screw extruder.
Above-described preparation method, polycarbonate, saturated polyester, toughner, thermo-stabilizer, the lubricant mixing time in moderate-speed mixers is 3-7 minute; The twin screw extruder processing condition are: twin screw extruder one district's temperature is 180～260 ℃, two district's temperature are 180～260 ℃, and three district's temperature are 180～260 ℃, and four district's temperature are 180～260 ℃, 180～260 ℃ in five districts, compound time of delivery in screw rod is 1～2 minute.
Above-described preparation method, described toughner is the grafting POE of ethylene-methyl acrylate and maleic anhydride, the preparation method of described grafting POE is: take by weighing raw material by following weight percent,
Ethene 0.5--1.5%
Methyl acrylate 0.5--1.5%
Maleic anhydride 0.5--1.5%
POE 95.5％--98.5；
The raw material that weighs up mixed 5 minutes in the middling speed mixing machine earlier, was 35 millimeters by screw diameter then, and screw slenderness ratio is that 40: 1 twin screw extruder is extruded, and extrusion temperature is 165 ℃ to 175 ℃, and the forcing machine rotating speed is 190 to 210 rev/mins.
The present invention is by short fiber, self-control lubricant, the composite use of saturated polyester, prepared glass fiber reinforced PC composite material good toughness, intensity height, surface smoothness is good, successful solution intensity, toughness and glass dispersion be difficult to an isostatic difficult problem.
[embodiment]
Used polycarbonate among the present invention is preferentially selected bisphenol A polycarbonate, and low sticking PC in being, weight-average molecular weight is between 19000 to 25000.Do not select other polycarbonate to be because in low sticking PC good fluidity and toughness better, help glass and in polycarbonate melt, disperse and distribute.Here, in the melting index of sticking PC be 8-15 gram/10 minutes, low sticking PC melting index is/10 minutes a polycarbonate of 15-25 gram.
Used saturated polyester is preferentially selected polyethylene terephthalate (PET) among the present invention, be easy to get because of it is cheap, and good with the consistency of polycarbonate, the reason that does not adopt PBT be the heat-drawn wire of PET than PBT, after the phone housing oil spout, cross the high temperature baking oven and be not easy distortion.Interpolation PET can reduce the viscosity of formula system in prescription, thereby improves surface gloss, and PET strength ratio PBT intensity height, and then increases the intensity of whole formula system.
Toughner among the present invention is self-control toughner, and concrete structure is the grafting POE of ethylene-methyl acrylate and maleic anhydride, makes by the twin screw fusion-grafting.Its component and preparation method are as follows: take by weighing ethene (1.5%, weight percent, methyl acrylate (1.5%), maleic anhydride (1.5%), POE (95.5%) down together),, in the middling speed mixing machine, mixed 5 minutes, it is 35 millimeters by screw diameter then, screw slenderness ratio is that 40: 1 twin screw extruder is extruded, and extrusion temperature is 170 ℃, and the forcing machine rotating speed is 200 rev/mins.
Thermo-stabilizer among the present invention is that German Ke Laien produces oxidation inhibitor P-EPQ (four-(2, the 4-di-tert-butyl-phenyl)-4,4 '-xenyl bis-phosphite).The thermostable effect of this thermo-stabilizer in the polycarbonate product is very good.
Lubricant among the present invention is the self-control lubricant.Select general ethylene bis stearic acid amide (EBS) on the market, add the additive silicone lubricant LX-1 that polycarbonate and polyethylene terephthalate (PET) is all had the good lubrication performance, both ratios are EBS: LX-1=3: 1, learn that through practice the lubricant of this ratio makes that short fiber is easier and is dispersed in the melt.
The diameter of the glass fibre that is adopted is 4～17 microns.Used short glass fiber in the present invention.Because of the viscosity of PC and PET is all bigger, roving glass fiber disperses in the bigger melt of viscosity and distribution is not easy, and uses short glass fiber can better to disperse and distribute under the help of self-control lubricant.
The preparation method of glass fiber reinforced PC composite material of the present invention may further comprise the steps:
(1) takes by weighing polycarbonate, saturated polyester, self-control toughner, thermo-stabilizer, the mixing of self-control lubricant middling speed according to parts by weight;
(2) polycarbonate, saturated polyester, self-control toughner, thermo-stabilizer, self-control lubricant middling speed are mixed;
(3) raw material and glass fibre blending that step (2) is mixed melt extrudes granulation through twin screw extruder; The twin screw extruder processing condition are: twin screw extruder one district's temperature is 180～260 ℃, two district's temperature are 180～260 ℃, and three district's temperature are 180～260 ℃, and four district's temperature are 180～260 ℃, 180～260 ℃ in five districts, compound time of delivery in screw rod is 1～2 minute.
Below in conjunction with embodiment the present invention is done detailed explanation:
The molecular weight 22000-25000 of poly-carbonic acid (PC), Korea S three support and produce 3020 powder;
Saturated polyester produces CZ-5011 for Jiangsu San Fangxiang;
Self-control toughner is the grafting POE of ethylene-methyl acrylate and maleic anhydride;
The self-control lubricant is home-made EBS: LX-1=3: 1;
Thermo-stabilizer is that Germany produces Ke Laien product oxidation inhibitor P-EPQ;
Glass fibre is produced for megalith group, and the trade mark is 534A.
Embodiment 1, with PC 3020 grain weight amount per-cents (down together) is 61%, saturated polyester CZ5011 is 5%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 0.7%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Embodiment 2, with PC 3020 grain weight amount per-cents (down together) is 56%, saturated polyester CZ5011 is 10%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 0.7%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Embodiment 3, with PC 3020 grain weight amount per-cents (down together) is 51%, saturated polyester CZ5011 is 15%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 0.7%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, the residence time was 90 seconds.
Embodiment 4, with PC 3020 grain weight amount per-cents (down together) is 45.9%, saturated polyester CZ5011 is 20%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 0.8%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Embodiment 5, with PC 3020 grain weight amount per-cents (down together) is 50.8%, saturated polyester CZ5011 is 15%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 0.9%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Embodiment 6, with PC 3020 grain weight amount per-cents (down together) is 49.7%, saturated polyester CZ5011 is 15%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 4%, self-control lubricant 1.0%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Embodiment 7, with PC 3020 grain weight amount per-cents (down together) is 50.7%, saturated polyester CZ5011 is 15%, thermo-stabilizer P-EPQ is 0.3%, and the grafting POE of self-control toughner ethylene-methyl acrylate and maleic anhydride is 3%, self-control lubricant 1.0%, middling speed stirrer for mixing 5 minutes, with 30% glass blending, be that 200--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Wherein each zone temperatures is: 200 ℃ in a district, and 240 ℃ in two districts, 255 ℃ in three districts, 260 ℃ in four districts, 245 ℃ in five districts, compound time of delivery in screw rod was 90 seconds.
Performance evaluation mode and implementation standard
The particle that above-mentioned 7 embodiment are finished granulation dry 4-～6 hour in 130--150 ℃ convection oven again with the injection moulding sample preparation on the 80T injection moulding machine of exsiccant particle, keep the mould temperature between 70--～100 ℃ in the sample making course.
Tensile strength is tested by GB/T 1040 standards., specimen types is the I type, batten size (mm): 170 (length) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), and draw speed is 50mm/min; Flexural strength and modulus in flexure are tested by GB 9341/T standard.Specimen types is specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2), rate of bending are 20mm/min; Notched Izod impact strength is tested by GB/T 1043 standards.Specimen types is the I type, specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2); The breach type is a category-A, and the breach residual thickness is 3.2mm; Heat-drawn wire is tested by GB/T 1634.2 standards, and load is 100mm for the 1.80MPa. span.
Embodiment 1-7 raw material weight umber and the composite property table of making
Can reach the effect of high strength, high tenacity, high gloss in the present invention by short fiber, self-control lubricant, the composite use of saturated polyester.When not using saturated polyester, the tensile strength of PC+30%GF can only reach 100MPA, and the toughner that uses saturated polyester back draft intensity to be easy to reach common on the 130MPa. market only has good toughening effect at a certain resin, toughening effect to the PC/PET alloy is then undesirable, self-control toughner is then according to the characteristic of PC/PET alloy, make the very excellent toughner of PC/PET alloy toughening effect by melt extruding, very little to tensile strength and modulus in flexure influence simultaneously.Use the short glass fiber good fluidity, in product, disperse easily, make finished product surface smoothness excellence.
Data above comprehensive, embodiment 6 data are best. be core data of the present invention.
Low adhesive aggregation carbonic ether during the present invention adopts adds auxiliary agents such as saturated polyester, self-control toughner, thermo-stabilizer, self-control lubricant, short glass fiber low adhesive aggregation carbonic ether in common is carried out modification; Wherein adding the saturated polyester agent can increase the intensity and the flowability of matrix material, and reduces the cost of whole prescription, and what make manufacturing compoundly just has a very strong competitive edge; Self-control toughner makes matrix material not ftracture when playing screw, and can guarantee mobile phone not explosion when the following process oil spout; Thermo-stabilizer can prevent the non-yellowing or color nondiscoloration of finished product color; The self-control lubricant makes that glass is easier to be dispersed in the matrix material, and finished product are brighter and cleaner; Glass fibers makes matrix material that very high intensity and toughness be arranged, and reaches the strength demand of mobile phone material.Above-mentioned main raw material, auxiliary agent are the commercial goods, have reduced production cost, make the product that makes have competitive edge.The equipment of wherein making the toughner use by oneself can be 35 millimeters twin screw extruder with screw diameter, and each modification factory all uses this model device to do experiment or small serial production, does not need additionally to increase equipment.Self-control uses high-speed mixer during lubricant, with two kinds of lubricants mixing in high-speed mixer proportionally, also can use the equipment of batch process, thereby need not additionally increase cost.
The present invention prepares the production technique simple controllable, produces easy to operately, and this material can be widely used in fields such as electronic apparatus, household electrical appliances and auto parts machinery.
Claims (10)
1. a glass fiber reinforced PC composite material is characterized in that, by weight percentage by following group
Be grouped into:
Polycarbonate 45～61%
Saturated polyester 5～20%
Toughner 3～4%
Thermo-stabilizer 0.1～0.3%
Lubricant 0.7～1.1%
Glass fibre 25～35%.
2. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that described polycarbonate glues or low adhesive aggregation carbonic ether in being, weight-average molecular weight is between 19000 to 25000; Described saturated polyester is a polyethylene terephthalate.
3. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that described toughner is the grafting POE of ethylene-methyl acrylate and maleic anhydride, described grafting POE is composed of the following components by weight percentage:
Ethene 0.5--1.5%
Methyl acrylate 0.5--1.5%
Maleic anhydride 0.5--1.5%
POE 95.5％--98.5。
4. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that described thermo-stabilizer is N, N '-two-(3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine.
5. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that, described lubricant is the fatty acid amide of modification, and described modified fat acid acid amides is composite by ethylene bis stearic acid amide and silicone lubricant, and both ratios are 2.8～3.2: 1.
6. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that described glass fibre is a short glass fiber, diameter is 4～17 microns.
7. according to the described glass fiber reinforced PC composite material of claim 1, it is characterized in that, composed of the following components by weight percentage:
Polycarbonate 45～51%
Saturated polyester 10～20%
Toughner 3～4%
Thermo-stabilizer 0.1～0.3%
Lubricant 0.8～1.0%
Glass fibre 25～35%.
8. the preparation method of the described glass fiber reinforced PC composite material of claim 1 is characterized in that, may further comprise the steps:
(1) takes by weighing polycarbonate, saturated polyester, toughner, thermo-stabilizer, lubricant, glass fibre by the described component of claim 1;
(2) polycarbonate, saturated polyester, toughner, thermo-stabilizer, lubricant middling speed are mixed;
(3) with raw material mixed in the step (2) and glass fibre blending, melt extrude granulation through twin screw extruder.
9. preparation method according to claim 8 is characterized in that, polycarbonate, saturated polyester, toughner, thermo-stabilizer, the lubricant mixing time in moderate-speed mixers is 3-7 minute; The twin screw extruder processing condition are: twin screw extruder one district's temperature is 180～260 ℃, two district's temperature are 180～260 ℃, and three district's temperature are 180～260 ℃, and four district's temperature are 180～260 ℃, 180～260 ℃ in five districts, compound time of delivery in screw rod is 1～2 minute.
10. preparation method according to claim 8 is characterized in that, described toughner is the grafting POE of ethylene-methyl acrylate and maleic anhydride, and the preparation method of described grafting POE is: take by weighing raw material by following weight percent,
Ethene 0.5--1.5%
Methyl acrylate 0.5--1.5%
Maleic anhydride 0.5--1.5%
POE 95.5％--98.5；
The raw material that weighs up mixed 5 minutes in the middling speed mixing machine earlier, was 35 millimeters by screw diameter then, and screw slenderness ratio is that 40: 1 twin screw extruder is extruded, and extrusion temperature is 165 ℃ to 175 ℃, and the forcing machine rotating speed is 190 to 210 rev/mins.
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| CN106543622A (en) * | 2016-10-20 | 2017-03-29 | 陈志凤 | Polyester is as flow improver additive in the purposes for improving enhancing ASA composition glossiness |
| CN109721988A (en) * | 2017-10-31 | 2019-05-07 | 合肥杰事杰新材料股份有限公司 | Low smell PC/ saturated polyester alloy material of the low warpage of circuit breaker handle Special high-strength high-temperature resistant high tenacity and preparation method thereof |
| CN114231006A (en) * | 2021-12-17 | 2022-03-25 | 宁波瑞隆新材料科技有限公司 | Hydrolysis-resistant PC/PBT alloy material and preparation method thereof |
| CN115093596A (en) * | 2022-06-28 | 2022-09-23 | 东莞鸿绩塑胶模具有限公司 | High-wear-resistance and compression-resistance mobile phone shell and processing technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109721988A (en) * | 2017-10-31 | 2019-05-07 | 合肥杰事杰新材料股份有限公司 | Low smell PC/ saturated polyester alloy material of the low warpage of circuit breaker handle Special high-strength high-temperature resistant high tenacity and preparation method thereof |
| CN114231006A (en) * | 2021-12-17 | 2022-03-25 | 宁波瑞隆新材料科技有限公司 | Hydrolysis-resistant PC/PBT alloy material and preparation method thereof |
| CN115093596A (en) * | 2022-06-28 | 2022-09-23 | 东莞鸿绩塑胶模具有限公司 | High-wear-resistance and compression-resistance mobile phone shell and processing technology thereof |
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| CN101875772B (en) | 2012-01-18 |
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