CN101787182B - Method for preparing polybutylene terephthalate composite and mineral filler thereof - Google Patents
Method for preparing polybutylene terephthalate composite and mineral filler thereof Download PDFInfo
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- CN101787182B CN101787182B CN2009101903635A CN200910190363A CN101787182B CN 101787182 B CN101787182 B CN 101787182B CN 2009101903635 A CN2009101903635 A CN 2009101903635A CN 200910190363 A CN200910190363 A CN 200910190363A CN 101787182 B CN101787182 B CN 101787182B
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- -1 polybutylene terephthalate Polymers 0.000 title claims abstract description 55
- 239000012764 mineral filler Substances 0.000 title claims abstract description 46
- 229920001707 polybutylene terephthalate Polymers 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 53
- 239000002480 mineral oil Substances 0.000 claims description 13
- 235000010446 mineral oil Nutrition 0.000 claims description 13
- 239000012783 reinforcing fiber Substances 0.000 claims description 11
- 150000004760 silicates Chemical class 0.000 claims description 11
- 229920002943 EPDM rubber Polymers 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 9
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 8
- 229960001866 silicon dioxide Drugs 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 235000019260 propionic acid Nutrition 0.000 claims description 4
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- 235000021355 Stearic acid Nutrition 0.000 claims 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims 1
- 239000008117 stearic acid Substances 0.000 claims 1
- 238000009713 electroplating Methods 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 22
- 239000000463 material Substances 0.000 description 21
- 239000002994 raw material Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 238000005303 weighing Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000007747 plating Methods 0.000 description 8
- 239000007822 coupling agent Substances 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- XQDIHUSNXVHNSO-UHFFFAOYSA-N C(C)(C)(C)C=1C=C(C=C(C1O)CN)CC=C Chemical group C(C)(C)(C)C=1C=C(C=C(C1O)CN)CC=C XQDIHUSNXVHNSO-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- 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 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a method for preparing a polybutylene terephthalate composite and a mineral filler thereof. The composite is prepared from the following components in percentage by weight: 65-85% of polybutylene terephthalate, 10-30% of mineral filler, 3-8% of toughener, 0.3-0.5% of antioxidant and 0.8-2% of lubricant, wherein the mineral filler is prepared from the following components in percentage by weight: 30-50% of silicate composite reinforced fiber crystal whisker, 10-40% of silica powder, 18-40% of barium sulfate and 0.5-0.8% of silane coupling agent. Compared with the electroplated polybutylene terephthalate product of the same kind, the polybutylene terephthalate composite prepared by the invention can withstand a high temperature more than 180 DEG C, and has the advantages of excellent electroplating performance, good dimensional stability and strong warpage resistance.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of plating that is used for automobile with polybutylene terephthalate matrix material and preparation method thereof.
Background technology
Comparatively well-known headlight for vehicles materials adopt a kind of high temperature resistant polycarbonate basically both at home and abroad at present; Its excellent heat resistance, good electroplating characteristic, unique compound method; And similar polycarbonate products does not reach the excellent performance of Bayer polycarbonate; This makes this kind of material become the monopolization product, and its fancy price has produced tremendous influence to accounting for the bigger low and middle-grade cars of the market share at cost.
(Polybutylece Terephthalate is the linear saturated polyester resin of a kind of crystal type PBT) to polybutylene terephthalate, and its crystallization velocity is fast; But high-speed molding, and weathering resistance, electrical property, flame retardant properties, chemical proofing, friction wear excellent, water-absorbent is low, heat-drawn wire is high; And mechanical property is good; Physical strength is high, resistance to fatigue and dimensional stability are good, and creep is also less, these performances also changes little under hot conditions.
But adopt the plated material of polybutylene terephthalate preparation at present, its high temperature resistant temperature is low, and electroplates performance, dimensional stability, and anti-warpage ability is all not as polycarbonate.
Therefore, prior art haves much room for improvement and improves.
Summary of the invention
The present invention is directed to the problems referred to above of the prior art, the polybutylene terephthalate matrix material is used in the plating that a kind of high temperature resistant temperature height is provided, electroplate performance, dimensional stability is good.
The technical problem that the present invention further will solve is, a kind of preparation method who is used to prepare the needed mineral filler of polybutylene terephthalate matrix material is provided.
The technical solution adopted for the present invention to solve the technical problems is:
Construct a kind of plating and use the polybutylene terephthalate matrix material, wherein,, comprise following component by the weight percent meter that accounts for said matrix material:
Polybutylene terephthalate 65～85%,
Mineral filler 10～30%,
Toughner 3～8%,
Oxidation inhibitor 0.3～0.5%,
Lubricant 0.8～2%;
Wherein, by the weight percent meter that accounts for said mineral filler, said mineral filler comprises following component:
Silicates composite reinforcing fiber whisker 30～50%,
Ground silica 10～40%,
Permanent white 18～40%,
Silane coupling agent 0.5～0.8%.
Matrix material of the present invention, wherein, said mineral filler also comprises silicon-dioxide, accounts for 0.5～2% of said mineral filler weight.
Matrix material of the present invention, wherein, the viscosity of said polybutylene terephthalate is 0.9～1.1 pascal second.
Matrix material of the present invention, wherein, said toughner is that grafting maleic anhydride with ethylene propylene terpolymer or propenoate connect an EPDM elastomerics.
Matrix material of the present invention, wherein, said matrix material also comprises the white mineral oil of being made up of stable hydrocarbon, accounts for 0.3～0.5% of matrix material gross weight.
Matrix material of the present invention; Wherein, Said oxidation inhibitor is that four [3-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and tricresyl phosphite (2,4-di-t-butyl phenyl ester) by 1: 1 composite mixture of weight ratio blended, triglycol two-fine or three (2, the 4-di-tert-butylphenol) phosphorous acid ester of 3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propylene.
Matrix material of the present invention; Wherein, Said matrix material also comprises processing aid, accounts for 0.2～0.4% of said matrix material gross weight, and said processing aid is a kind of in the modified product of wax, hard ester acids and fatty acid or ethylene bis stearamide.
Matrix material of the present invention, wherein, said lubricant is for dredging the high ZGK 5 of type response type.
A kind of preparation method who is used for the mineral filler of polybutylene terephthalate matrix material may further comprise the steps:
A, take by weighing raw material, comprise silicates composite reinforcing fiber whisker, ground silica and permanent white, silicon-dioxide and coupling agent;
B, place high-speed mixer to mix said raw material, said mixed at high speed built-in temperature is controlled to be 90～97 ℃, mixes 25～35 minutes postcooling, takes out through mixed raw material, obtains mineral filler.
Preparing method of the present invention, wherein, among the said step B, said mixing time is 30 minutes, said mixed at high speed built-in temperature is 95 ℃.
Compare with the polybutylene terephthalate material product with similar plating, the prepared polybutylene terephthalate matrix material of the present invention is high temperature resistant can to meet or exceed 180 ℃, and electroplates excellent performance, good dimension stability, and anti-warpage ability is strong.
Embodiment
Describe in detail in the face of the preferred embodiments of the present invention down.
Plating of the present invention comprises following component with the polybutylene terephthalate matrix material by weight percentage: polybutylene terephthalate 65～85%, mineral filler 10～30%, toughner 3～8%, oxidation inhibitor 0.3～0.5%.
Wherein, The specific density of the polybutylene terephthalate that is adopted is 1.30～1.34, and fusing point is 222～227 ℃, and viscosity is 0.9～1.1 pascal second (PaS); It can be used as the bed material of modified product, and the physical strength of the matrix material of final preparation is played leading main using.
The mineral filler that is adopted is homemade; Can prepare through following method: take by weighing silicates composite reinforcing fiber whisker 30～50% by weight percentage, ground silica 10～40%, permanent white 18～40%; These three kinds of mineral are as base-material; Can add the nano silicon that accounts for base-material gross weight 0.5%～2% in addition, and account for the silane coupling agent of base-material gross weight 0.5%～0.8%, like KH550 or KH560.Wherein, said ground silica is 5000 purpose needle-like ground silicas.The raw material that is taken by weighing was mixed about 25～35 minutes through high-speed mixer, be preferably 30 minutes, the mixed at high speed built-in temperature is 90～97 ℃, is preferably 95 ℃; After treating that raw material cools off in the high-speed mixer, take out, obtain mineral filler, promptly can be used as the needed mineral filler of preparation matrix material among following each embodiment of the present invention through mixed raw material.
The toughner that is adopted is terpolymer EP rubber (Ethylene-Propylene-Diene Monomer; EPDM) grafted maleic anhydride or propenoate meet a kind of in the EPDM elastomerics; Specifically can be the PTW of Du Pont, PC-15 or KT-22 can increase the mechanical property of material; Improve heat-resisting, the anti-warpage ability of material, improve the glossiness of material surface.
The inhibitor that is adopted is that four [3-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and tricresyl phosphite (2; 4-di-t-butyl phenyl ester) by 1: 1 composite mixture of weight ratio blended; Or triglycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propylene is fine, a kind of in three (2, the 4-di-tert-butylphenol) phosphorous acid ester, can reduce the oxidation of material in process engineering.
Matrix material of the present invention can also comprise white mineral oil, processing aid and lubricant.Wherein white mineral oil is the MO behind special deep refining, mainly is made up of stable hydrocarbon, and function is the toughness that increases material, promotes the toughness of material under coldcondition.Processing aid can be a kind of in the modified product of wax, hard ester acids or fatty acid or ethylene bis stearamide, can reduce between the raw material, and raw material and equipment between friction, be convenient to processing, make raw material more even.Lubricant can be that the high ZGK 5 of comb type response type or other have the material of oh group, and it mainly acts on group is hydroxyl, and the consistency of itself and plastics is fine, can make frosting have polar group, can increase the electrical property of material surface.
Explain that through 6 groups of specific embodiments plating provided by the invention is with concrete component of polybutylene terephthalate matrix material and preparation method thereof below.
Embodiment 1
Meter takes by weighing 85 parts of polybutylene terephthalates, 10 parts of mineral fillers by weight; 3.3 parts of EPDM grafted maleic anhydrides; 0.3 part of white mineral oil, triglycol is two-fine 0.3 part of 3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propylene, 0.3 part of hard ester acid; 0.8 part of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 30 parts of silicates composite reinforcing fiber whiskers, 40 parts of ground silicas, 29.5 parts in permanent white, 0.5 part of coupling agent.
Above-mentioned raw materials was mixed in impeller 10 minutes, extrude through twin screw extruder, granulation obtains matrix material.Wherein each zone temperatures of forcing machine is: district's temperature is 190～210 ℃, and two district's temperature are 220～240 ℃, and three district's temperature are 230～245 ℃; Four district's temperature are 225～240 ℃; 230～250 ℃ in five districts, compound time of delivery in screw rod is 1～5 minute, pressure is 10～18MPa.
Embodiment 2
Meter takes by weighing 78.6 parts of polybutylene terephthalates by weight, and 15 parts of mineral fillers, propenoate connect 4 parts on an EPDM elastomerics; 0.4 part of white mineral oil, four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and tricresyl phosphite (2; 4-di-t-butyl phenyl ester) presses 1: 1 quality than 0.4 part in the composite mixture of blended; 0.2 part of hard ester acid, 1.2 parts of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 48.6 parts of silicates composite reinforcing fiber whiskers, 10 parts of ground silicas, 40 parts in permanent white, 0.8 part of coupling agent, 0.6 part of silicon-dioxide.
The preparation method repeats no more at this with embodiment 1.
Embodiment 3
Count by weight; Take by weighing 71.9 parts of polybutylene terephthalates, 20 parts of mineral fillers, propenoate and connect 5 parts on an EPDM elastomerics, white mineral oil 0.5, three (2; The 4-di-tert-butylphenol) 0.4 part of phosphorous acid ester, 0.2 part in lipid acid, 2 parts of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 40 parts of silicates composite reinforcing fiber whiskers, 30 parts of ground silicas, 29 parts in permanent white, 0.5 part of coupling agent, 0.5 part of silicon-dioxide.
The preparation method repeats no more at this with embodiment 1.
Embodiment 4
Meter takes by weighing 75 parts of polybutylene terephthalates, 16.2 parts of mineral fillers by weight; Propenoate connects 5 parts on an EPDM elastomerics; White mineral oil 0.5,0.4 part in oxidation inhibitor, 0.2 part in lipid acid; 2 parts of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 50 parts of silicates composite reinforcing fiber whiskers, 30 parts of ground silicas, 19.4 parts in permanent white, 0.6 part of coupling agent.
The preparation method repeats no more at this with embodiment 1.
Embodiment 5
Meter takes by weighing 78 parts of polybutylene terephthalates, 10.8 parts of mineral fillers by weight; 8 parts of EPDM grafted maleic anhydrides; 0.4 part of white mineral oil 0.5, three (2, the 4-di-tert-butylphenol) phosphorous acid ester, 0.2 part in lipid acid; 2 parts of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 45 parts of silicates composite reinforcing fiber whiskers, 34.6 parts of ground silicas, 19.4 parts in permanent white, 0.5 part of coupling agent, 0.5 part of silicon-dioxide.
The preparation method repeats no more at this with embodiment 1.
Embodiment 6
Meter takes by weighing 65 parts of polybutylene terephthalates, 30 parts of mineral fillers by weight; 3 parts of toughner, white mineral oil 0.5, three (2; The 4-di-tert-butylphenol) phosphorous acid ester is 0.3 part; 0.4 part of hard ester acid, 0.8 part of the high ZGK 5 of comb type response type, preparation polybutylene terephthalate matrix material.
Wherein, according to the weight percent meter that accounts for mineral filler, mineral filler comprises: 45 parts of silicates composite reinforcing fiber whiskers, 34.2 parts of ground silicas, 18 parts in permanent white, 0.8 part of coupling agent, 2 parts of silicon-dioxide.
The preparation method repeats no more at this with embodiment 1.
Each matrix material composition by weight of above embodiment 1～6 can see table 1.
The matrix material raw material weight component (unit: %) of table 1 embodiment 1～6
| Form | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Polybutylene terephthalate | 85 | 78.6 | 71.9 | 75 | 78 | 65 |
| Mineral filler | 10 | 15 | 20 | 16.2 | 10.8 | 30 |
| Toughner | 3.3 | 3 | 5 | 5 | 8 | 3 |
| White mineral oil | 0.3 | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 |
| Oxidation inhibitor | 0.3 | 0.4 | 0.4 | 0.1 | 0.5 | 0.3 |
| Processing aid | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 |
| Lubricant | 0.8 | 1.2 | 2 | 2 | 2 | 0.8 |
Effect for explanation matrix material of the present invention; One contrast embodiment also is provided, and its concrete component is following: 100 parts of polybutylene terephthalates, 20 parts of mineral fillers, 5 parts of toughner, white mineral oil 0.5,0.4 part in oxidation inhibitor, 0.2 part of processing aid, 2 parts of lubricants.Mineral filler thing among the comparative example is different with embodiment 1～6, belongs to simple silicates composite reinforcing fiber whisker, does not pass through any processing and preparing process.Same preparation method among employing and the embodiment 1 prepares comparative composite by above component.
Will be by the granular matrix material of component and method completion in the foregoing description 1～6; In 110～120 ℃ convection oven dry 4 hours in advance; And then the matrix material that drying is good carries out the injection molding sample preparation on injector; The injection mold temperature control is carried out each item test respectively by following method again at 100 ℃, and each item test environment temperature all guarantees about 23 ℃.Describe in detail as follows:
1, tensile strength is tested by ISO 527 standards, and selected specimen types is the I type, and batten is of a size of 150 * (20 ± 0.2) * (4 ± 0.2) mm
3, draw speed is 50mm/min;
2, flexural strength and modulus in flexure are tested by ISO 178 standards, and selected specimen types is that specimen size is (80 ± 2) * (10 ± 0.2) * (4 ± 0.2) mm
3, rate of bending is 20mm/min;
3, notched Izod impact strength is tested by ISO 180 standards, and selected specimen types is the I type, and specimen size is (80 ± 2) * (10 ± 0.2) * (4 ± 0.2) mm
3, the breach type is a category-A, breach is thick 1/3 deeply;
4, heat-drawn wire is tested by ISO 75-2 standard, and selected specimen types is the I type, and specimen size is 127 (length) * (13 ± 0.1) * (6.35 ± 0.1) mm
3, temperature rise rate is 120 ℃/1h, and pressure is 1.82MPa, and the setting deformation quantity is 0.21mm.
Simultaneously will be by the granular matrix material injection moulding of the matrix material composition by weight among the embodiment 1～6 and preparing method's completion; Take out 10 matrix material particles among each embodiment at random; Under identical conditions, electroplate test; Electroplate, through the electroplating effect plating qualification rate of coming experimental material of range estimation plated item.
Each item test result is as shown in table 2 below:
The composite property of table 2 embodiment 1～6
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Notched Izod impact strength (KJ/m 2) | 9.2 | 10 | 10 | 11 | 12 | 13 |
| Tensile strength (MPa) | 62 | 70 | 75 | 70 | 74 | 74 |
| Elongation at break (%) | 16 | 14 | 14 | 15 | 14 | 17 |
| Flexural strength (MPa) | 82 | 90 | 95 | 100 | 106 | 95 |
| Modulus in flexure (MPa) | 2200 | 2400 | 2450 | 2800 | 2800 | 2760 |
| Heat-drawn wire (℃) | 140 | 150 | 180 | 185 | 190 | 130 |
| Electroplate qualification rate (%) | 100 | 100 | 100 | 100 | 100 | 90 |
The existing embodiment 3 that from embodiments of the invention, chooses compares test with the comparative example, and the component of two embodiment is as shown in table 3 below.
Table 3 comparative example and embodiment 3 parts by weight contrast (unit: %)
| Form (weight part) | Embodiment 3 | The comparative example |
| Polybutylene terephthalate | 71.9 | 74.4 |
| Mineral filler | 20 | 20 |
| Toughner | 5 | 5 |
| White mineral oil | 0.5 | / |
| Oxidation inhibitor | 0.4 | 0.4 |
| Processing aid | 0.2 | 0.2 |
| Lubricant | 2 | / |
The matrix material that will make by above comparative example's each component is tested by aforementioned testing standard, and is compared with embodiment 3 prepared composite material properties under similarity condition, and the result is as shown in table 4 below.
Table 4 comparative example and the contrast of embodiment 3 each item test indexs
| Test event | Embodiment 3 | The comparative example |
| Notched Izod impact strength (KJ/m2) | 10 | 10 |
| Tensile strength (MPa) | 75 | 65 |
| Elongation at break (%) | 14 | 12 |
| Flexural strength (MPa) | 95 | 83 |
| Modulus in flexure (MPa) | 2450 | 2250 |
| Heat-drawn wire (℃) | 180 | 140 |
| Electroplate qualification rate (%) | 100 | 50 |
Can find out from table 4, except that mineral filler, under the constant basically situation of other components; The good-toughness of embodiment 3 prepared matrix materials, because the adding of mineral filler, its molding shrinkage diminishes; Anti-warpage ability will can satisfy the needs of some electric appliance casings far above Vestolen PP 7052.Can find out that electroplating aspect of performance, the mineral-filled agent material after the processing can make the composite material surface glossiness high, electroplating effect obviously will be got well, and satisfy the needed effect of the big lamp housing of vapour, and it is with low cost, excellent performance, and application prospect is extensive.
In sum; Compare with similar plating polybutylene terephthalate material product; Adopt the prepared plated material of composite material component of the present invention and preparation method high temperature resistant, reach 185 ℃, and have good anti-warpage performance and mechanical property above 180 ℃; Its excellent size stability satisfies the required performance need of headlight for vehicles materials, and has solved the problem of polycarbonate expensive.It electroplates excellent performance simultaneously, and dimensional stability is better, and anti-warpage ability is stronger, can electroplate by first drop priming, also can make high surfacing Direct Electroplating, practices thrift cost.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (7)
1. a polybutylene terephthalate matrix material is characterized in that, by the weight percent meter that accounts for said matrix material, comprises following component:
Polybutylene terephthalate 65～85%,
Mineral filler 10～30%,
Toughner 3～8%,
Oxidation inhibitor 0.3～0.5%,
Lubricant 0.8～2%;
Wherein, by the weight percent meter that accounts for said mineral filler, said mineral filler comprises following component:
Silicates composite reinforcing fiber whisker 30～50%,
Ground silica 10～40%,
Permanent white 18～40%,
Silane coupling agent 0.5～0.8%; And
The viscosity of said polybutylene terephthalate is 0.9～1.1 pascal. second.
2. matrix material according to claim 1 is characterized in that said mineral filler also comprises silicon-dioxide, accounts for 0.5～2% of said mineral filler weight.
3. matrix material according to claim 1 is characterized in that, said toughner is grafting maleic anhydride with ethylene propylene terpolymer or acrylic ester grafted EPDM elastomerics.
4. matrix material according to claim 1 is characterized in that said matrix material also comprises the white mineral oil of being made up of stable hydrocarbon, accounts for 0.3～0.5% of matrix material gross weight.
5. matrix material according to claim 1; It is characterized in that; Said oxidation inhibitor is that four [3-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and tricresyl phosphite (2,4-di-t-butyl phenyl ester) by 1: 1 composite mixture of weight ratio blended, triglycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) vinyl cyanide or three (2, the 4-di-tert-butylphenol) phosphorous acid ester.
6. matrix material according to claim 1 is characterized in that said matrix material also comprises processing aid, accounts for 0.2～0.4% of said matrix material gross weight, and said processing aid is stearic acid or fatty acid.
7. matrix material according to claim 1 is characterized in that, said lubricant is the high ZGK 5 of comb type response type.
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| CN101974214A (en) * | 2010-09-29 | 2011-02-16 | 深圳市科聚新材料有限公司 | Mineral reinforced PC-PET composite material and preparation method thereof |
| CN102329478B (en) * | 2011-05-30 | 2013-06-05 | 深圳市科聚新材料有限公司 | Polyethylene glycol terephthalate (PET) coating composite material and preparation method thereof |
| CN102492276A (en) * | 2011-11-30 | 2012-06-13 | 深圳市科聚新材料有限公司 | Reinforced PC/PBT (Polycarbonate/Polybutylene Terephthalate) composite material and preparation method thereof |
| CN102719060B (en) * | 2012-03-19 | 2014-06-18 | 深圳市科聚新材料有限公司 | High-temperature resistant and high-gloss PET / PBT composite material and preparation method thereof |
| CN102786781B (en) * | 2012-08-14 | 2015-09-16 | 富阳多宝电子有限公司 | A kind of high temperature resistant vehicle generator shaft bearing sleeve |
| CN103421310B (en) * | 2013-07-29 | 2016-08-10 | 安徽科聚新材料有限公司 | A kind of polycaprolactam composite material and preparation method thereof |
| CN111995843A (en) * | 2020-08-24 | 2020-11-27 | 广东圆融新材料有限公司 | Low-linear expansion coefficient polybutylene terephthalate composite material and preparation method thereof |
| CN113136093B (en) * | 2021-05-13 | 2023-03-17 | 广西安全工程职业技术学院 | Preparation method of reinforced polybutylene terephthalate material |
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