CN109265953A - A kind of light diffusion PC/PCTG composite material and preparation method - Google Patents
A kind of light diffusion PC/PCTG composite material and preparation method Download PDFInfo
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- CN109265953A CN109265953A CN201810979985.5A CN201810979985A CN109265953A CN 109265953 A CN109265953 A CN 109265953A CN 201810979985 A CN201810979985 A CN 201810979985A CN 109265953 A CN109265953 A CN 109265953A
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- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 238000009792 diffusion process Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 239000000314 lubricant Substances 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 21
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 21
- 239000012745 toughening agent Substances 0.000 claims abstract description 19
- 239000006096 absorbing agent Substances 0.000 claims abstract description 18
- 239000003112 inhibitor Substances 0.000 claims abstract description 18
- 239000004417 polycarbonate Substances 0.000 claims description 72
- 239000000463 material Substances 0.000 claims description 30
- 150000002148 esters Chemical group 0.000 claims description 17
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- -1 polysiloxanes Polymers 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 239000008188 pellet Substances 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 8
- 238000002834 transmittance Methods 0.000 claims description 7
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 6
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 230000004927 fusion Effects 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 claims description 3
- 229930185605 Bisphenol Natural products 0.000 claims description 3
- MKYLOMHWHWEFCT-UHFFFAOYSA-N Manthidine Natural products C1C2=CC=3OCOC=3C=C2C2C3=CC(OC)C(O)CC3N1C2 MKYLOMHWHWEFCT-UHFFFAOYSA-N 0.000 claims description 3
- SNFRINMTRPQQLE-JQWAAABSSA-N Montanin Chemical compound O[C@H]([C@@]1(CO)O[C@H]1[C@H]1[C@H]2O3)[C@]4(O)C(=O)C(C)=C[C@H]4[C@]11OC3(CCCCCCCCCCC)O[C@@]2(C(C)=C)C[C@H]1C SNFRINMTRPQQLE-JQWAAABSSA-N 0.000 claims description 3
- SNFRINMTRPQQLE-OFGNMXNXSA-N Montanin Natural products O=C1[C@@]2(O)[C@@H](O)[C@@]3(CO)O[C@H]3[C@@H]3[C@H]4[C@@]5(C(=C)C)O[C@](CCCCCCCCCCC)(O4)O[C@@]3([C@H](C)C5)[C@@H]2C=C1C SNFRINMTRPQQLE-OFGNMXNXSA-N 0.000 claims description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 3
- QTZPBQMTXNEKRX-UHFFFAOYSA-N Voacristine pseudoindoxyl Natural products N1C2=CC=C(OC)C=C2C(=O)C21CCN(C1)C3C(C(C)O)CC1CC32C(=O)OC QTZPBQMTXNEKRX-UHFFFAOYSA-N 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- 235000019983 sodium metaphosphate Nutrition 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 claims description 3
- ISDGWTZFJKFKMO-UHFFFAOYSA-N 2-phenyl-1,3-dioxane-4,6-dione Chemical compound O1C(=O)CC(=O)OC1C1=CC=CC=C1 ISDGWTZFJKFKMO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 238000005809 transesterification reaction Methods 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical class OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 2
- 125000004185 ester group Chemical group 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- SNAMIIGIIUQQSP-UHFFFAOYSA-N bis(6-methylheptyl) hydrogen phosphate Chemical compound CC(C)CCCCCOP(O)(=O)OCCCCCC(C)C SNAMIIGIIUQQSP-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 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
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a kind of light diffusion PC/PCTG composite material and preparation method, belong to light diffusion PC technical field of composite materials, by weight, including following components: 50~90 parts of PC resin, 5~40 parts of PCTG, 5~10 parts of low temperature toughener, 0.5~5 part of light diffusing agent, 0.2~0.5 part of antioxidant, 0.1~0.5 part of ultraviolet absorbing agent, 0.1~0.5 part of lubricant, 0.4~0.6 part of ester exchange inhibitor.The shortcomings that present invention is modified PC by PCTG, overcomes PC poor fluidity, molding not easy to be processed, so that it is light diffusion PC/PCTG composite material mobility with higher, easily processed into type, and have many advantages, such as high temperature resistant, high mechanical strength.
Description
Technical field
The present invention relates to a kind of light to spread PC/PCTG composite material and preparation method, belongs to light diffusion PC composite material
Technical field.
Background technique
Current social is all vigorously advocating low-carbon, environmental protection, energy conservation, and energy-saving lamp is exactly one of staple product；At present
Using very universal, China is also wideling popularize the energy-saving lamp of developed country, so the demand of energy-saving lamp shade material is also very
It is huge.LED is a kind of semiconductor devices for efficiently converting electrical energy into luminous energy, has small in size, low, the high luminous spy of energy consumption
Point, therefore start to substitute traditional light source in various fields.LED belongs to point light source, and luminous intensity is high, uses simple glass
Or transparent resin can damage the eyes of people.
Photodiffusion material is, since light diffusing agent is at spherical shape, to be dispersed in base by adding light diffusing agent in resin
In material resin, island structure is formed, substrate resin is different with the refraction index of light diffusing agent, and light is similar on light diffusing agent surface
Mirror-reflection achievees the effect that light is spread by multiple reflections.
Pc (polycarbonate) is most widely used at present as a kind of high-intensitive, high transparency thermoplastic resin material
Light diffusion lampshade material, but there is also some weakness, such as chemical resistance is poor, not oil resistant and soda acid etc., improves PC
The most common mode of chemical resistance be the preferable polymer material of oil resistivitys such as PET, ABS, PETG, PBT is added, but PET,
The materials such as PBT, ABS will affect the transparency of PC, and PETG is bigger to the influence of thermal deformation of material.
Since China region is wide, LED light is commonly exposed under extremely harsh environment, is proposed to used material
Extremely strict requirements, especially LED light will not only meet electrical safety performance, also to meet it is resistance to fall, it is resistance to the mechanical performances such as touch,
Also to have excellent appearance, the ageing-resistant and resistance to performances such as ultraviolet simultaneously, more importantly it is warmer not only to meet south
The use environment of sum meets the use environment of the extremely low temperature in the Northeast again.
The low temperature modification of polycarbonate is mainly carried out from the following aspects at present, as Chinese patent is " low temperature resistant anti-
Rush flame-retardant modified PC composite material " (Publication No. CN104419184A) using rubber-type chlorinated polyethylene, for another example Chinese patent
" charging gun shell low temperature resistant wet-heat resisting fire retardation PC material and preparation method thereof " (Publication No. CN108047679A) uses silicon-
The core-shell structure of acrylic type AS cladding, for another example Chinese patent " a kind of the PC alloy of high-low temperature resistant hydrolysis and preparation method thereof "
(Publication No. CN108017894A) improves PC low temperature properties using TPU polyester-type thermoplastic polyurethane elastomer.These above-mentioned sides
Method can all influence the transparency of light diffusion composite material.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of oil resistivity, chemicals-resistant, resistance to low temperature are excellent
Good light spreads PC/PCTG composite material.
The present invention also provides the preparation methods of above-mentioned light diffusion PC/PCTG composite material.
To achieve the goals above, a kind of light that the present invention uses spreads PC/PCTG composite material, by weight, packet
It includes following components: 50~90 parts of PC resin, 5~40 parts of PCTG, 5~10 parts of low temperature toughener, 0.5~5 part of light diffusing agent, resisting
0.2~0.5 part of oxygen agent, 0.1~0.5 part of ultraviolet absorbing agent, 0.1~0.5 part of lubricant, ester exchange inhibitor 0.4~0.6
Part.
As an improvement, the PC resin is the bisphenol A-type clear polycarbonate of high transparency, number-average molecular weight 1.8-3
Ten thousand, shrinking percentage 0.5-0.7%, specific gravity 1.18-1.2, light transmittance >=86%.
As an improvement, the low temperature toughener is polysiloxanes and Copolycarbonate, melting means 1, silicone content is
20%.
As an improvement, the light diffusing agent be one or both of styrene/acrylic acid co-polymer, organic silicon with
The mixture of arbitrary proportion composition；
The refractive index 1.54 of the styrene/acrylic acid co-polymer, specific gravity 1.1, partial size are 1-5 microns；The organosilicon
The refractive index of class is 1.43, specific gravity 1.3, and partial size is 0.5-2 microns.
As an improvement, the antioxidant was four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] seasons penta
Four alcohol esters, N, N '-is bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine, β-(3,5- di-t-butyl -4- hydroxyls
Base phenyl) propionic acid n-octadecyl alcohol ester, any two kinds of mixture in three [2.4- di-tert-butyl-phenyl] phosphite esters.
As an improvement, the ultraviolet absorbing agent be 2- (2 '-hydroxyls -3 ', 5 '-bis--(a, a- dimethyl benzyl) benzene
Base) benzotriazole, benzylidene malonate, any one in 2- (2 '-hydroxyls -5 '-t-octyl)-benzotriazole.
As an improvement, the lubricant is any one in PETS or montanin wax.
As an improvement, the ester exchange inhibitor be sodium dihydrogen phosphate, sodium pyrophosphate, sodium metaphosphate, ethyl orthosilicate,
Triethyl phosphite, triphenyl phosphite, any one in di (isooctyl) phosphate.
In addition, the present invention also provides the preparation methods of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps:
First by PC resin, PCTG, low temperature toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor
It is uniformly mixed, uniformly mixed material is sent into extruder in a high speed mixer then, shearing, mixing of the material in screw rod
Pellet is made finally after extrusion, tie rod, cooling with the lower adequately fusion of conveying；
Wherein, the extruder is with the control of accurate temperature and devolatilization exhaust, the temperature setting in each area of screw rod
200-300℃。
Compared with prior art, the beneficial effects of the present invention are:
1) light of the invention diffusion PC/PCTG composite material during the preparation process, joined ester exchange inhibitor, in PC/
In PCTG molten condition Blending Processes, it can inhibit PC and PCTG that esterification occurs, the saturating of product will not be influenced because of esterification
The property crossed.
2) the shortcomings that present invention is modified PC by PCTG, overcomes PC poor fluidity, molding not easy to be processed, so that
Light spreads PC/PCTG composite material mobility with higher, easily processed into type, and there is high temperature resistant, mechanical strength height etc.
Advantage.
3) light provided by the invention spreads PC/PCTG composite material, has the characteristics that good light transmittance, low transparency,
Grease resistance, solvent resistant, acid-proof alkaline are excellent, and mechanical property is close with common PC；In addition, also having good chemical resistance
Can, the hidden danger that stress cracking occurs in use for material is eliminated, the use scope of light diffusion PC is expanded.
4) light of the invention diffusion PC/PCTG composite material during the preparation process, is added with antioxidant and ultraviolet radiation absorption
Agent prevents composite material from aging under light, further improving the service life of composite material at high temperature.
5) present invention is had using polysiloxanes and Copolycarbonate as the toughener and PC of light diffusion composite material
Good compatibility will not influence the transparency of composite material, can also greatly improve the lower temperature resistance of composite material.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
Unless otherwise defined, all technical terms and scientific terms used herein are led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical, and term as used herein in the specification of the present invention is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in the limitation present invention.
A kind of light diffusion PC/PCTG composite material, by weight, including following components: 50~90 parts of PC resin, PCTG
5~40 parts, 5~10 parts of low temperature toughener, 0.5~5 part of light diffusing agent, 0.2~0.5 part of antioxidant, ultraviolet absorbing agent 0.1~
0.5 part, 0.1~0.5 part of lubricant, 0.4~0.6 part of ester exchange inhibitor.
As an improvement, the PC resin is the bisphenol A-type clear polycarbonate of high transparency, number-average molecular weight 1.8-3
Ten thousand, shrinking percentage 0.5-0.7%, specific gravity 1.18-1.2, light transmittance >=86%.
PCTG used is polyethylene terephthalate -1,4-CHDM ester (PCTG), by terephthalic acid (TPA)
(PTA), three kinds of monomer products made from ester-interchange method polycondensation of ethylene glycol (EG) and 1,4-CHDM (CHDM).
As an improvement, the low temperature toughener be polysiloxanes and Copolycarbonate, melting means be 1 (300 DEG C/
1.2kg test), silicone content 20%.
As an improvement, the light diffusing agent be one or both of styrene/acrylic acid co-polymer, organic silicon with
The mixture of arbitrary proportion composition；
The refractive index 1.54 of the styrene/acrylic acid co-polymer, specific gravity 1.1, partial size are 1-5 microns, this is reflected with PC
Rate is more closely, guarantee system light transmittance with higher；Organic silicon refractive index 1.43, specific gravity 1.3, partial size are that 0.5-2 is micro-
Rice, refractive index and PC difference are big, and guarantee has higher mist degree；The two compounding can guarantee higher light transmittance and higher mist
Degree.
As an improvement, antioxidant used was four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] seasons penta
Four alcohol esters (1010), N, N '-is bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine (1098), β-(3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester (1076), three [2.4- di-tert-butyl-phenyl] phosphite esters (168)
In two kinds of compound.
As an improvement, ultraviolet absorbing agent used be 2- (2 '-hydroxyls -3 ', 5 '-bis--(a, a- dimethyl benzyl) benzene
Base) benzotriazole (UV-234) or benzylidene malonic acid ester type (B-CAP), 2- (2 '-hydroxyls -5 '-t-octyl)-benzo three
Any one in azoles (cyanogen spy 5411).
As an improvement, the lubricant is any one in PETS or montanin wax.
As an improvement, the ester exchange inhibitor be sodium dihydrogen phosphate, sodium pyrophosphate, sodium metaphosphate, ethyl orthosilicate,
Triethyl phosphite, triphenyl phosphite, any one in di (isooctyl) phosphate.It can inhibit the transesterification between polyester material
Reaction, preferential triphenyl phosphite.
In addition, the present invention also provides the preparation methods of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps:
First by PC resin, PCTG, low temperature toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor
It is uniformly mixed, uniformly mixed material is sent into extruder in a high speed mixer then, shearing, mixing of the material in screw rod
Pellet is made finally after extrusion, tie rod, cooling with the lower adequately fusion of conveying；
Wherein, the extruder is with the control of accurate temperature and devolatilization exhaust, the temperature setting in each area of screw rod
200-300℃。
Embodiment 1
A kind of light diffusion PC/PCTG composite material, by weight, including following components: 80 parts of PC resin, PCTG 8
Part, 10 parts of low temperature toughener, 0.8 part of light diffusing agent, 0.3 part of antioxidant, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant, ester
0.5 part of exchanger inhibitor.
The preparation method of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps: first by PC resin, PCTG, low temperature
Toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor mix in a high speed mixer
It is even, then uniformly mixed material to be sent into extruder, material adequately fuses under the shearing, mixing and conveying of screw rod,
Finally after extrusion, tie rod, cooling, pellet is made.The temperature setting in each area of screw rod is 225 DEG C~275 DEG C.
Embodiment 2
A kind of light diffusion PC/PCTG composite material, by weight, including following components: 70 parts of PC resin, PCTG 18
Part, 10 parts of low temperature toughener, 0.8 part of light diffusing agent, 0.3 part of antioxidant, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant, ester
0.5 part of exchanger inhibitor.
The preparation method of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps: first by PC resin, PCTG, low temperature
Toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor mix in a high speed mixer
It is even, then uniformly mixed material to be sent into extruder, material adequately fuses under the shearing, mixing and conveying of screw rod,
Finally after extrusion, tie rod, cooling, pellet is made.The temperature setting in each area of screw rod is 225 DEG C~275 DEG C.
Embodiment 3
A kind of light diffusion PC/PCTG composite material, by weight, including following components: 60 parts of PC resin, PCTG 28
Part, 10 parts of low temperature toughener, 0.8 part of light diffusing agent, 0.3 part of antioxidant, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant, ester
0.5 part of exchanger inhibitor.
The preparation method of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps: first by PC resin, PCTG, low temperature
Toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor mix in a high speed mixer
It is even, then uniformly mixed material to be sent into extruder, material adequately fuses under the shearing, mixing and conveying of screw rod,
Finally after extrusion, tie rod, cooling, pellet is made.The temperature setting in each area of screw rod is 225 DEG C~275 DEG C.
Embodiment 4
A kind of light diffusion PC/PCTG composite material, by weight, including following components: 50 parts of PC resin, PCTG 38
Part, 10 parts of low temperature toughener, 0.8 part of light diffusing agent, 0.3 part of antioxidant, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant, ester
0.5 part of exchanger inhibitor.
The preparation method of above-mentioned light diffusion PC/PCTG composite material, comprising the following steps: first by PC resin, PCTG, low temperature
Toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester exchange inhibitor mix in a high speed mixer
It is even, then uniformly mixed material to be sent into extruder, material adequately fuses under the shearing, mixing and conveying of screw rod,
Finally after extrusion, tie rod, cooling, pellet is made.The temperature setting in each area of screw rod is 225 DEG C~275 DEG C.
Comparative example 1
A kind of composite material, by weight, including following components: 98.5 parts of PC resin, 0.8 part of light diffusing agent, antioxygen
0.3 part of agent, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant.
The preparation method of above-mentioned composite material, comprising the following steps: first by PC resin, light diffusing agent, antioxidant, ultraviolet light
Absorbent, lubricant are uniformly mixed in a high speed mixer, then uniformly mixed material are sent into extruder, material is in spiral shell
Pellet is made finally after extrusion, tie rod, cooling in the lower adequately fusion of shearing, mixing and the conveying of bar.Each area of screw rod
Temperature setting is between 245 DEG C~285 DEG C.
Comparative example 2
A kind of composite material, by weight, including following components: 98.5 parts of PCTG, 0.8 part of light diffusing agent, antioxidant
0.3 part, 0.2 part of ultraviolet absorbing agent, 0.2 part of lubricant.
The preparation method of above-mentioned composite material, comprising the following steps: first inhale PCTG, light diffusing agent, antioxidant, ultraviolet light
Receipts agent, lubricant are uniformly mixed in a high speed mixer, then uniformly mixed material are sent into extruder, material is in screw rod
The lower adequately fusion of shearing, mixing and conveying, finally by extrusion, tie rod, it is cooling after, pellet is made.The temperature in each area of screw rod
Degree is set as between 200 DEG C~225 DEG C.
In addition, carrying out cryogenic property processing to the batten of the various embodiments described above preparation: it is cold that batten being placed in -40 DEG C of cryogenic boxes
Freeze 4h, and completes test in 10 seconds after taking-up.
Composite material is made to the various embodiments described above to be tested for the property, specific test result is as follows shown in table 1.
The performance of composite material is made in each embodiment of table 1
Analytical table 1 it is found that light provided by the invention spreads PC/PCTG composite material and normal light diffusion PC material compares,
Light transmittance, mist degree influence less, and heat distortion temperature decreases, and mechanical property and PC are close, with the introducing of PCTG polyester, mentions
The high chemicals-resistant and oil and grease resistance of composite material.In addition, it is modified by polysiloxanes and Copolycarbonate, improve
The low temperature impact properties of composite material, the occurrence of effectivelying prevent the LED light to crack under Northeast Regional cryogenic conditions.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of light spreads PC/PCTG composite material, which is characterized in that by weight, including following components: PC resin 50~
90 parts, 5~40 parts of PCTG, 5~10 parts of low temperature toughener, 0.5~5 part of light diffusing agent, 0.2~0.5 part of antioxidant, ultraviolet light
0.1~0.5 part of absorbent, 0.1~0.5 part of lubricant, 0.4~0.6 part of ester exchange inhibitor.
2. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the PC resin is
The bisphenol A-type clear polycarbonate of high transparency, number-average molecular weight are 1.8-3 ten thousand, shrinking percentage 0.5-0.7%, specific gravity 1.18-
1.2, light transmittance >=86%.
3. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the low temperature toughening
Agent is polysiloxanes and Copolycarbonate, melting means 1, silicone content 20%.
4. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the light diffusing agent
The mixture formed for one or both of styrene/acrylic acid co-polymer, organic silicon with arbitrary proportion；
The refractive index 1.54 of the styrene/acrylic acid co-polymer, specific gravity 1.1, partial size are 1-5 microns；The organic silicon
Refractive index is 1.43, specific gravity 1.3, and partial size is 0.5-2 microns.
5. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the antioxidant is
Four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol esters, N, N '-is bis--(3- (3,5- bis- tertiary fourths
Base -4- hydroxy phenyl) propiono) hexamethylene diamine, β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, three
Any two kinds of mixture in [2.4- di-tert-butyl-phenyl] phosphite ester.
6. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the ultraviolet light is inhaled
Receipts agent is 2- (2 '-hydroxyls -3 ', 5 '-bis--(a, a- dimethyl benzyl) phenyl) benzotriazole, benzylidene malonate, 2-
Any one in (2 '-hydroxyls -5 '-t-octyl)-benzotriazole.
7. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the lubricant is
Any one in PETS or montanin wax.
8. a kind of light according to claim 1 spreads PC/PCTG composite material, which is characterized in that the transesterification suppression
Preparation is sodium dihydrogen phosphate, sodium pyrophosphate, sodium metaphosphate, ethyl orthosilicate, triethyl phosphite, triphenyl phosphite, phosphoric acid
Any one in di-isooctyl.
9. a kind of preparation method of any one of claim 1-8 light diffusion PC/PCTG composite material, which is characterized in that packet
Include following steps: first by PC resin, PCTG, low temperature toughener, light diffusing agent, antioxidant, ultraviolet absorbing agent, lubricant and ester
Exchanger inhibitor is uniformly mixed in a high speed mixer, then uniformly mixed material is sent into extruder, material is in screw rod
The lower adequately fusion of shearing, mixing and conveying, finally by extrusion, tie rod, it is cooling after, pellet is made；
Wherein, the extruder is 200-300 with the control of accurate temperature and devolatilization exhaust, the temperature setting in each area of screw rod
℃。
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| CN112226061A (en) * | 2020-09-23 | 2021-01-15 | 广州华新科智造技术有限公司 | Polycarbonate/polyester alloy and preparation method and application thereof |
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| CN114460675A (en) * | 2022-04-13 | 2022-05-10 | 广东欧迪明光电科技股份有限公司 | LED spectrum switchable composite light diffusion plate and production method thereof |
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Address after: No.9-5, 2nd Road, Nanlang Industrial Zone, Xingtan town, Shunde District, Foshan City, Guangdong Province 528300 Applicant after: Guangdong Xinlong New Material Co.,Ltd. Address before: No.9-5, 2nd Road, Nanlang Industrial Zone, Xingtan town, Shunde District, Foshan City, Guangdong Province 528300 Applicant before: Foshan Shunde Xinlong Engineering Plastics Co.,Ltd. |
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