CN118344720A - Low-temperature-resistant environment-friendly PC/ABS material and preparation process thereof - Google Patents
Low-temperature-resistant environment-friendly PC/ABS material and preparation process thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 229920007019 PC/ABS Polymers 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 131
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 103
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 103
- 241001330002 Bambuseae Species 0.000 claims abstract description 103
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 103
- 239000011425 bamboo Substances 0.000 claims abstract description 103
- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- OXDXXMDEEFOVHR-CLFAGFIQSA-N (z)-n-[2-[[(z)-octadec-9-enoyl]amino]ethyl]octadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)NCCNC(=O)CCCCCCC\C=C/CCCCCCCC OXDXXMDEEFOVHR-CLFAGFIQSA-N 0.000 claims abstract description 6
- 239000002250 absorbent Substances 0.000 claims abstract description 6
- 230000002745 absorbent Effects 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 26
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 23
- 239000007864 aqueous solution Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 19
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 16
- 239000000047 product Substances 0.000 claims description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 239000012065 filter cake Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 11
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 11
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- ZSTLPJLUQNQBDQ-UHFFFAOYSA-N azanylidyne(dihydroxy)-$l^{5}-phosphane Chemical compound OP(O)#N ZSTLPJLUQNQBDQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 8
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methyl-cyclopentane Natural products CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 5
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 244000005700 microbiome Species 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 description 9
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 6
- 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 5
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000000347 magnesium hydroxide Substances 0.000 description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- 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 invention relates to the technical field of high polymer materials, in particular to a low-temperature-resistant environment-friendly PC/ABS material and a preparation process thereof; the low-temperature-resistant environment-friendly PC/ABS material consists of the following raw materials in parts by weight: 80 to 110 parts of PC resin, 35 to 70 parts of ABS resin, 6 to 10 parts of ABS-g-GMA compatilizer, 4 to 6 parts of triphenyl phosphate, 0.6 to 1.2 parts of ethylene bis-oleamide, 8 to 12 parts of nano filler, 6 to 12 parts of silane coupling agent, 4 to 8 parts of fiber reinforcement, 6 to 12 parts of low temperature resistant agent, 5 to 10 parts of antioxidant and 3 to 6 parts of ultraviolet absorbent; the invention takes bamboo fiber as raw material, not only realizes reasonable utilization of resources, but also has good biodegradability, can be completely degraded by microorganisms and sunlight in soil, and does not cause any environmental pollution in the decomposition process, and is relatively environment-friendly.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a low-temperature-resistant environment-friendly PC/ABS material and a preparation process thereof.
Background
PC/ABS, namely polycarbonate and acrylonitrile-butadiene-styrene copolymer and mixture, is thermoplastic plastic made of polycarbonate and polyacrylonitrile alloy, combines the excellent characteristics of two materials, and the formability of ABS material and the properties of PC such as mechanical property, impact strength, temperature resistance, ultraviolet (UV) resistance, etc., and can be widely used in automobile interior parts, business machines, communication equipment, household appliances and lighting equipment.
The patent document with the application number of CN201310296477.4 discloses an anti-aging PC-ABS plastic alloy, which comprises the following components in parts by weight: 40-60 parts of PC, 20-40 parts of ABS, 2-4 parts of compatilizer and 0.5-1.5 parts of anti-aging agent. The PC-ABS plastic alloy provided by the patent document has excellent mechanical property and heat aging property, but the mechanical property, low temperature resistance and flame retardance are relatively poor, so that the quality and the quality of the PC-ABS plastic alloy are affected to a certain extent.
In order to ensure the mechanical properties of PC-ABS plastic alloy, fiber reinforcement is usually used, and the fiber reinforcement commonly used at present comprises glass fiber, carbon fiber, synthetic fiber, artificial fiber, plant fiber and the like, wherein the glass fiber accounts for more than 90%. However, the glass fiber has high energy consumption, the product has influence on human body and high price, and is difficult to be widely applied. The bamboo fiber has the advantages of large length-diameter ratio, high specific strength, large specific surface area, low price, good biodegradability, regeneration and the like, can be used as a raw material for preparing PC/ABS materials, and can be a new green material in the sustainable development trend. Based on the invention, the invention provides a low-temperature-resistant environment-friendly PC/ABS material and a preparation process thereof!
Disclosure of Invention
The invention aims to provide a low-temperature-resistant environment-friendly PC/ABS material and a preparation process thereof, and the prepared PC/ABS material not only has good low-temperature resistance and mechanical properties, but also has excellent flame retardant property. In addition, the bamboo fiber is used as a raw material, so that the reasonable utilization of resources is realized, the bamboo fiber has good biodegradability, can be completely degraded by microorganisms and sunlight in soil, does not cause any environmental pollution in the degradation process, and is environment-friendly.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The low-temperature-resistant environment-friendly PC/ABS material consists of the following raw materials in parts by weight: 80 to 110 parts of PC resin, 35 to 70 parts of ABS resin, 6 to 10 parts of ABS-g-GMA compatilizer, 4 to 6 parts of triphenyl phosphate, 0.6 to 1.2 parts of ethylene bis-oleamide, 8 to 12 parts of nano filler, 6 to 12 parts of silane coupling agent, 4 to 8 parts of fiber reinforcement, 6 to 12 parts of low temperature resistant agent, 5 to 10 parts of antioxidant and 3 to 6 parts of ultraviolet absorbent;
Wherein the density of the polycarbonate is 1.19g/cm 3 and the melt index under 1.2kg at 300 ℃ is 6g/10min; the polybutadiene content of the ABS resin is 22wt%; the melt index of the ABS resin at 230 ℃ and 5.0kg is 10g/10min
Further, the method for preparing the fiber reinforcement comprises the following steps:
Firstly, adding pretreated bamboo fibers into 1, 4-epoxybutane according to the dosage ratio of 0.005-0.01 g/mL, sequentially adding potassium hydroxide with the mass being 0.3-0.4 times that of the pretreated bamboo fibers and phosphonitrile trichloride with the mass being 1.0-1.5 times that of the pretreated bamboo fibers, ultrasonically dispersing for 30-40 min, and introducing nitrogen to deoxidize for 20-30 min; then reflux reaction is carried out for 30-40 h under the action of magnetic stirring; filtering the obtained product components after the reaction is finished, alternately washing the obtained filter cake with 1, 4-epoxybutane and acetone for 2-3 times, and finally drying at 70-80 ℃ to constant weight, wherein the obtained filter cake is marked as modified bamboo fiber;
Step two, putting the modified bamboo fibers into a reaction kettle, adding a sulfate mixed aqueous solution into the kettle while stirring, slowly and dropwise adding ammonia water with the mass of 35-45% and the concentration of 20-30% of the sulfate mixed aqueous solution into the obtained mixed phase after ultrasonic dispersion is uniform; after the dripping is finished, standing for 30-50 min, fully stirring, and drying at 70-80 ℃ to obtain a finished fiber reinforcement product; wherein, the mass ratio of the modified bamboo fiber, the sulfate mixed aqueous solution and the ammonia water is 1: 5-8: 2 to 4.
Further, the solute in the sulfate mixed aqueous solution consists of aluminum sulfate and magnesium sulfate, wherein the concentration of the aluminum sulfate is 15-25 wt% and the concentration of the magnesium nitrate is 10-20 wt%.
Further, the preparation method of the pretreated bamboo fiber comprises the following steps:
S1, putting bamboo fibers (20-200 meshes of bamboo fibers) into deionized water according to a solid-to-liquid ratio of 0.008-0.015 g/mL, and then sequentially adding an oxidant TEMPO with the mass of 0.2-0.3% and sodium bromide with the mass of 2-3% into the bamboo fibers; adding sodium hypochlorite solution with the mass of 3-4% and the concentration of 10-15 wt% of bamboo fibers into the obtained mixed components after uniformly mixing and stirring, regulating the pH of the mixture to 10.2-10.6 after uniformly dispersing, filtering the obtained product components after stirring and reacting for 4-6 hours, washing the obtained filter cake with absolute ethyl alcohol for 2-3 times, and then carrying out vacuum drying, thereby obtaining dried bamboo fibers for later use;
S2, putting the dried bamboo fibers into deionized water with the mass being 5-8 times of that of the dried bamboo fibers, regulating the pH of the dried bamboo fibers to 4.2-4.8, adding sodium hypochlorite aqueous solution with the mass being 0.5-0.8 time of that of the dried bamboo fibers and the concentration being 10-15 wt%, mixing and stirring uniformly, and then carrying out heat preservation treatment for 3-5 hours at the temperature of 70-80 ℃; and finally, sequentially filtering and vacuum drying the obtained resultant components to obtain the pretreated bamboo fiber.
Further, the antioxidant is any one of antioxidant 1010, antioxidant 1076 and antioxidant DLTDP.
Further, the ultraviolet absorber is selected from any one of ultraviolet absorber UV-329 and ultraviolet absorber UV-5411.
Furthermore, the low temperature resistant agent is METABLEN-S2030 of Mitsubishi yang of Japan.
Further, the nano filler is any one of nano titanium dioxide, nano zinc oxide and nano cerium oxide.
Further, the silane coupling agent is any one of silane coupling agents KH550, KH560 and KH 570.
A preparation process of a low-temperature-resistant environment-friendly PC/ABS material comprises the following steps: accurately weighing all raw materials required for preparing the low-temperature-resistant environment-friendly PC/ABS material, and then putting all the raw materials into mixing equipment for high-speed stirring; after being stirred uniformly, the obtained mixture is transferred into a double-screw extruder, and the low-temperature-resistant environment-friendly PC/ABS material is prepared through melt extrusion granulation.
Compared with the prior art, the invention has the beneficial effects that:
The invention takes bamboo fiber as raw material, and adopts oxidizing agent TEMPO, sodium bromide, sodium hypochlorite and the like to pretreat the bamboo fiber, so that the surface of the prepared pretreated bamboo fiber generates quite abundant reactive groups, thereby facilitating the subsequent modification work. The obtained pretreated bamboo fiber is put into 1, 4-epoxybutane, sodium hydroxide and phosphonitrile trichloride are sequentially added into the pretreated bamboo fiber, the phosphonitrile trichloride is uniformly dispersed in a reaction system by ultrasonic dispersion, and finally the phosphonitrile trichloride and reactive groups on the surface of the pretreated bamboo fiber are subjected to chemical reaction to form bonds, and the bonds are effectively grafted on the surface of the pretreated bamboo fiber, so that the modified bamboo fiber is finally prepared. Because of grafting the phosphonitrile trichloride, a layer of compact three-dimensional net structure is formed on the surface of the pretreated bamboo fiber, and the flame retardant property of the modified bamboo fiber is effectively enhanced.
Adding the modified bamboo fibers into a reaction kettle, adding sulfate mixed liquid into the reaction kettle while stirring, and performing ultrasonic dispersion to ensure that aluminum sulfate and magnesium sulfate in the mixed liquid fully permeate into gaps of the modified bamboo fibers, wherein aluminum hydroxide and magnesium hydroxide generated after the mixed liquid reacts with ammonia water are retained in the gaps of the modified bamboo fibers, and then 'net constraint' is performed on the magnesium hydroxide and the aluminum hydroxide through a three-dimensional net structure on the surface, so that the migration probability of the aluminum hydroxide and the magnesium hydroxide is reduced, and finally, the flame retardant property of the fiber reinforcement is obviously improved under the mutual cooperation of the aluminum hydroxide, the magnesium hydroxide and the phosphonitrile trichloride. The prepared fiber reinforcement and the low temperature resistant agent are used, so that the low temperature resistance and the mechanical property of the PC/ABS material are further improved.
In conclusion, the fiber reinforcement is adopted as the raw material for preparing the PC/ABS material, so that the flame retardant property of the PC/ABS material is effectively ensured, and the low temperature resistance and the mechanical property of the PC/ABS material are also effectively improved. In addition, the bamboo fiber is used as a raw material, so that the reasonable utilization of resources is realized, the bamboo fiber has good biodegradability, can be completely degraded by microorganisms and sunlight in soil, does not cause any environmental pollution in the degradation process, and is environment-friendly.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The low-temperature-resistant environment-friendly PC/ABS material consists of the following raw materials in parts by weight: 80 parts of PC resin, 35 parts of ABS resin, 6 parts of ABS-g-GMA compatilizer, 4 parts of triphenyl phosphate, 0.6 part of ethylene bis-oleamide, 8 parts of nano titanium dioxide, 6 parts of silane coupling agent KH550, 4 parts of fiber reinforcement, 6 parts of low temperature resistant agent, 5 parts of antioxidant 1010 and 3 parts of ultraviolet absorber UV-329; the low temperature resistant agent is METABLEN-S2030 of Mitsubishi yang of Japan.
The preparation method of the fiber reinforcement comprises the following steps:
Firstly, adding pretreated bamboo fibers into 1, 4-epoxybutane according to the dosage ratio of 0.005g/mL, sequentially adding potassium hydroxide with the mass being 0.3 times that of the pretreated bamboo fibers and phosphonitrile trichloride with the mass being 1.0 time that of the pretreated bamboo fibers, ultrasonically dispersing for 30min, and introducing nitrogen to deoxidize for 20min; then reflux reaction is carried out for 30 hours under the action of magnetic stirring; filtering the obtained product components after the reaction is finished, alternately washing the obtained filter cake with 1, 4-epoxybutane and acetone for 2 times, and finally drying at 70 ℃ to constant weight, wherein the obtained filter cake is marked as modified bamboo fiber;
Step two, putting the modified bamboo fibers into a reaction kettle, adding a sulfate mixed aqueous solution into the kettle while stirring, and slowly and dropwise adding ammonia water with the mass of 35% and the concentration of 20% of the sulfate mixed aqueous solution into the obtained mixed phase after ultrasonic dispersion is uniform; after the dripping is finished, standing for 30min, fully stirring, and drying at 70 ℃ to obtain a fiber reinforcement finished product; wherein, the mass ratio of the modified bamboo fiber, the sulfate mixed aqueous solution and the ammonia water is 1:5:2.
The solute in the sulfate mixed water solution consists of aluminum sulfate and magnesium sulfate, wherein the concentration of the aluminum sulfate is 15wt% and the concentration of the magnesium nitrate is 10wt%.
The preparation method of the pretreated bamboo fiber comprises the following steps:
S1, putting bamboo fibers into deionized water according to a solid-to-liquid ratio of 0.008g/mL, and then sequentially adding an oxidant TEMPO with the mass of 0.2% and sodium bromide with the mass of 2% into the bamboo fibers; adding sodium hypochlorite solution with the mass of 3% and the concentration of 10wt% of the bamboo fibers into the obtained mixed components after uniformly mixing and stirring, regulating the pH value to 10.2 after uniformly dispersing, filtering the obtained product components after stirring and reacting for 4 hours, washing the obtained filter cake with absolute ethyl alcohol for 2 times, and then carrying out vacuum drying, wherein the obtained dried bamboo fibers are stored for later use;
S2, putting the dried bamboo fibers into deionized water with the mass being 5 times of that of the dried bamboo fibers, adjusting the pH value of the dried bamboo fibers to 4.2, adding sodium hypochlorite aqueous solution with the mass being 0.5 time of that of the dried bamboo fibers and the concentration being 10wt%, mixing and stirring uniformly, and then carrying out heat preservation treatment for 3 hours at the temperature of 70 ℃; and finally, sequentially filtering and vacuum drying the obtained resultant components to obtain the pretreated bamboo fiber.
A preparation process of a low-temperature-resistant environment-friendly PC/ABS material comprises the following steps: accurately weighing all raw materials required for preparing the low-temperature-resistant environment-friendly PC/ABS material, and then putting all the raw materials into mixing equipment for high-speed stirring; after being stirred uniformly, the obtained mixture is transferred into a double-screw extruder, and the low-temperature-resistant environment-friendly PC/ABS material is prepared through melt extrusion granulation.
Example 2
The preparation process of the low temperature resistant environment-friendly PC/ABS material in the embodiment is basically the same as that of the embodiment 1, and the difference is that: the specific proportions of the two raw materials and the preparation method of the fiber reinforcement are different. The specific proportions of the raw materials used for preparing the low-temperature-resistant environment-friendly PC/ABS material and the preparation method of the fiber reinforcement are as follows:
The low-temperature-resistant environment-friendly PC/ABS material consists of the following raw materials in parts by weight: 100 parts of PC resin, 50 parts of ABS resin, 8 parts of ABS-g-GMA compatilizer, 5 parts of triphenyl phosphate, 1.0 part of ethylene bis-oleamide, 10 parts of nano zinc oxide, 9 parts of silane coupling agent KH560, 6 parts of fiber reinforcement, 10 parts of low temperature resistant agent, 8 parts of antioxidant 1076 and 5 parts of ultraviolet absorber UV-5411; the low temperature resistant agent is METABLEN-S2030 of Mitsubishi yang of Japan.
The preparation method of the fiber reinforcement comprises the following steps:
Firstly, adding pretreated bamboo fibers into 1, 4-epoxybutane according to the dosage ratio of 0.008g/mL, sequentially adding potassium hydroxide with the mass being 0.35 times that of the pretreated bamboo fibers and phosphonitrile trichloride with the mass being 1.2 times that of the pretreated bamboo fibers, ultrasonically dispersing for 35min, and introducing nitrogen to deoxidize for 25min; then reflux reaction is carried out for 35h under the action of magnetic stirring; filtering the obtained product components after the reaction is finished, alternately washing the obtained filter cake with 1, 4-epoxybutane and acetone for 3 times, and finally drying at 75 ℃ to constant weight, wherein the obtained filter cake is marked as modified bamboo fiber;
Step two, putting the modified bamboo fibers into a reaction kettle, adding a sulfate mixed aqueous solution into the kettle while stirring, and slowly and dropwise adding ammonia water with the mass of 40% and the concentration of 25% of the sulfate mixed aqueous solution into the obtained mixed phase after ultrasonic dispersion is uniform; after the dripping is finished, standing for 40min, fully stirring, and drying at 75 ℃ to obtain a fiber reinforcement finished product; wherein, the mass ratio of the modified bamboo fiber, the sulfate mixed aqueous solution and the ammonia water is 1:6:3.
The solute in the sulfate mixed water solution consists of aluminum sulfate and magnesium sulfate, wherein the concentration of the aluminum sulfate is 20wt% and the concentration of the magnesium nitrate is 15wt%.
The preparation method of the pretreated bamboo fiber comprises the following steps:
S1, putting bamboo fibers into deionized water according to a solid-to-liquid ratio of 0.012g/mL, and then sequentially adding an oxidant TEMPO with the mass of 0.25% and sodium bromide with the mass of 2.5% into the bamboo fibers; adding sodium hypochlorite solution with the mass of 3.5% and the concentration of 15wt% of the bamboo fibers into the obtained mixed components after uniformly mixing and stirring, regulating the pH value to 10.5 after uniformly dispersing, filtering the obtained product components after stirring and reacting for 5 hours, washing the obtained filter cake with absolute ethyl alcohol for 3 times, and then carrying out vacuum drying, wherein the obtained dried bamboo fibers are stored for later use;
S2, putting the dried bamboo fibers into deionized water with the mass being 6 times of that of the dried bamboo fibers, adjusting the pH value of the dried bamboo fibers to 4.5, adding sodium hypochlorite aqueous solution with the mass being 0.6 time of that of the dried bamboo fibers and the concentration being 15wt%, mixing and stirring uniformly, and then carrying out heat preservation treatment for 4 hours at the temperature of 75 ℃; and finally, sequentially filtering and vacuum drying the obtained resultant components to obtain the pretreated bamboo fiber.
Example 3
The preparation process of the low temperature resistant environment-friendly PC/ABS material in the embodiment is basically the same as that of the embodiment 1, and the difference is that: the specific proportions of the two raw materials and the preparation method of the fiber reinforcement are different. The specific proportions of the raw materials used for preparing the low-temperature-resistant environment-friendly PC/ABS material and the preparation method of the fiber reinforcement are as follows:
The low-temperature-resistant environment-friendly PC/ABS material consists of the following raw materials in parts by weight: 110 parts of PC resin, 70 parts of ABS resin, 10 parts of ABS-g-GMA compatilizer, 6 parts of triphenyl phosphate, 1.2 parts of ethylene bis-oleamide, 12 parts of nano cerium oxide, 12 parts of silane coupling agent KH570, 8 parts of fiber reinforcement, 12 parts of low temperature resistant agent, 10 parts of antioxidant DLTDP and 6 parts of ultraviolet absorber UV-329; wherein, the low temperature resistant agent is METABLEN-S2030 low temperature resistant agent of Mitsubishi yang of Japan.
The preparation method of the fiber reinforcement comprises the following steps:
Firstly, adding pretreated bamboo fibers into 1, 4-epoxybutane according to the dosage ratio of 0.01g/mL, sequentially adding potassium hydroxide with the mass being 0.4 times that of the pretreated bamboo fibers and phosphonitrile trichloride with the mass being 1.5 times that of the pretreated bamboo fibers, ultrasonically dispersing for 40min, and introducing nitrogen to deoxidize for 30min; then reflux reaction is carried out for 40h under the action of magnetic stirring; filtering the obtained product components after the reaction is finished, alternately washing the obtained filter cake with 1, 4-epoxybutane and acetone for 3 times, and finally drying at 80 ℃ to constant weight, wherein the obtained filter cake is marked as modified bamboo fiber;
Step two, putting the modified bamboo fibers into a reaction kettle, adding a sulfate mixed aqueous solution into the kettle while stirring, and slowly and dropwise adding ammonia water with the mass of 45% and the concentration of 30% of the sulfate mixed aqueous solution into the obtained mixed phase after ultrasonic dispersion is uniform; after the dripping is finished, standing for 50min, fully stirring, and drying at 80 ℃ to obtain a fiber reinforcement finished product; wherein, the mass ratio of the modified bamboo fiber, the sulfate mixed aqueous solution and the ammonia water is 1:8:4.
The solute in the sulfate mixed water solution consists of aluminum sulfate and magnesium sulfate, wherein the concentration of the aluminum sulfate is 25wt% and the concentration of the magnesium nitrate is 20wt%.
The preparation method of the pretreated bamboo fiber comprises the following steps:
S1, putting bamboo fibers into deionized water according to a solid-to-liquid ratio of 0.015g/mL, and then sequentially adding an oxidant TEMPO with the mass of 0.3% and sodium bromide with the mass of 3% into the bamboo fibers; adding sodium hypochlorite solution with the mass of 4% and the concentration of 15wt% into the obtained mixed components after uniformly mixing and stirring, regulating the pH value to 10.6 after uniformly dispersing, filtering the obtained product components after stirring and reacting for 6 hours, washing the obtained filter cake with absolute ethyl alcohol for 3 times, and then carrying out vacuum drying, wherein the obtained dried bamboo fibers are stored for later use;
S2, putting the dried bamboo fibers into deionized water with the mass being 8 times of that of the dried bamboo fibers, adjusting the pH value of the dried bamboo fibers to 4.8, adding sodium hypochlorite aqueous solution with the mass being 0.8 time of that of the dried bamboo fibers and the concentration being 15wt%, mixing and stirring uniformly, and then carrying out heat preservation treatment for 5 hours at the temperature of 80 ℃; and finally, sequentially filtering and vacuum drying the obtained resultant components to obtain the pretreated bamboo fiber.
The comparative example 1, the present example and the example 1 differ in that: this example uses an equal amount of pretreated bamboo fibers instead of fiber reinforcement.
The comparative example 2, the present example and the example 1 are different in that: in this example, the same amount of modified bamboo fibers was used instead of the fiber reinforcement.
Comparative example 3, this example differs from example 1 in that: in this example, the solute in the sulfate mixed aqueous solution was only aluminum sulfate, and the concentration of aluminum sulfate was 25wt%.
Comparative example 4, this example differs from example 1 in that: in this example, the solute in the sulfate mixed aqueous solution was only magnesium sulfate, and the concentration of magnesium sulfate was 25wt%.
Performance test: the PC/ABS material samples provided in examples 1 to 3 and comparative examples 1 to 4 were tested for their respective properties, and the test data obtained are recorded in the following table:
note that: the data in the table has been rounded.
As can be seen from comparison and analysis of the related data in the table, the PC/ABS material prepared by the invention has good low temperature resistance and mechanical properties, and also has good flame retardant property; in addition, the bamboo fiber is used as a raw material, so that the reasonable utilization of resources is realized, the bamboo fiber has good biodegradability, can be completely degraded by microorganisms and sunlight in soil, does not cause any environmental pollution in the degradation process, and is environment-friendly. Therefore, the low-temperature-resistant environment-friendly PC/ABS material and the preparation process thereof provided by the invention have wider market prospect and are more suitable for popularization.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The low-temperature-resistant environment-friendly PC/ABS material is characterized by comprising the following raw materials in parts by weight: 80 to 110 parts of PC resin, 35 to 70 parts of ABS resin, 6 to 10 parts of ABS-g-GMA compatilizer, 4 to 6 parts of triphenyl phosphate, 0.6 to 1.2 parts of ethylene bis-oleamide, 8 to 12 parts of nano filler, 6 to 12 parts of silane coupling agent, 4 to 8 parts of fiber reinforcement, 6 to 12 parts of low temperature resistant agent, 5 to 10 parts of antioxidant and 3 to 6 parts of ultraviolet absorbent.
2. The low temperature resistant environment-friendly PC/ABS material according to claim 1, wherein the preparation method of the fiber reinforcement comprises the following steps:
Firstly, adding pretreated bamboo fibers into 1, 4-epoxybutane according to the dosage ratio of 0.005-0.01 g/mL, sequentially adding potassium hydroxide with the mass being 0.3-0.4 times that of the pretreated bamboo fibers and phosphonitrile trichloride with the mass being 1.0-1.5 times that of the pretreated bamboo fibers, ultrasonically dispersing for 30-40 min, and introducing nitrogen to deoxidize for 20-30 min; then reflux reaction is carried out for 30-40 h under the action of magnetic stirring; filtering the obtained product components after the reaction is finished, alternately washing the obtained filter cake with 1, 4-epoxybutane and acetone for 2-3 times, and finally drying at 70-80 ℃ to constant weight, wherein the obtained filter cake is marked as modified bamboo fiber;
Step two, putting the modified bamboo fibers into a reaction kettle, adding a sulfate mixed aqueous solution into the kettle while stirring, slowly and dropwise adding ammonia water with the mass of 35-45% and the concentration of 20-30% of the sulfate mixed aqueous solution into the obtained mixed phase after ultrasonic dispersion is uniform; after the dripping is finished, standing for 30-50 min, fully stirring, and drying at 70-80 ℃ to obtain a finished fiber reinforcement product; wherein, the mass ratio of the modified bamboo fiber, the sulfate mixed aqueous solution and the ammonia water is 1: 5-8: 2 to 4.
3. The low temperature resistant environment friendly PC/ABS material according to claim 2, wherein: the solute in the sulfate mixed water solution consists of aluminum sulfate and magnesium sulfate, wherein the concentration of the aluminum sulfate is 15-25 wt% and the concentration of the magnesium nitrate is 10-20 wt%.
4. The low-temperature-resistant environment-friendly PC/ABS material according to claim 2, wherein the preparation method of the pretreated bamboo fiber is as follows:
S1, putting bamboo fibers into deionized water according to a solid-to-liquid ratio of 0.008-0.015 g/mL, and then sequentially adding an oxidant TEMPO with the mass of 0.2-0.3% and sodium bromide with the mass of 2-3% into the bamboo fibers; adding sodium hypochlorite solution with the mass of 3-4% and the concentration of 10-15 wt% of bamboo fibers into the obtained mixed components after uniformly mixing and stirring, regulating the pH of the mixture to 10.2-10.6 after uniformly dispersing, filtering the obtained product components after stirring and reacting for 4-6 hours, washing the obtained filter cake with absolute ethyl alcohol for 2-3 times, and then carrying out vacuum drying, thereby obtaining dried bamboo fibers for later use;
S2, putting the dried bamboo fibers into deionized water with the mass being 5-8 times of that of the dried bamboo fibers, regulating the pH of the dried bamboo fibers to 4.2-4.8, adding sodium hypochlorite aqueous solution with the mass being 0.5-0.8 time of that of the dried bamboo fibers and the concentration being 10-15 wt%, mixing and stirring uniformly, and then carrying out heat preservation treatment for 3-5 hours at the temperature of 70-80 ℃; and finally, sequentially filtering and vacuum drying the obtained resultant components to obtain the pretreated bamboo fiber.
5. The low temperature resistant environment-friendly PC/ABS material of claim 1, wherein: the antioxidant is any one of antioxidant 1010, antioxidant 1076 and antioxidant DLTDP.
6. The low temperature resistant environment-friendly PC/ABS material of claim 1, wherein: the ultraviolet absorbent is selected from any one of ultraviolet absorbent UV-329 and ultraviolet absorbent UV-5411.
7. The low temperature resistant environment-friendly PC/ABS material of claim 1, wherein: the low temperature resistant agent is METABLEN-S2030 low temperature resistant agent of Mitsubishi yang of Japan.
8. The low temperature resistant environment-friendly PC/ABS material of claim 1, wherein: the nano filler is any one of nano titanium dioxide, nano zinc oxide and nano cerium oxide.
9. The low temperature resistant environment-friendly PC/ABS material of claim 1, wherein: the silane coupling agent is any one of silane coupling agents KH550, KH560 and KH 570.
10. The process for preparing the low-temperature-resistant environment-friendly PC/ABS material according to any one of claims 1 to 9, which is characterized by comprising the following steps: accurately weighing all raw materials required for preparing the low-temperature-resistant environment-friendly PC/ABS material, and then putting all the raw materials into mixing equipment for high-speed stirring; after being stirred uniformly, the obtained mixture is transferred into a double-screw extruder, and the low-temperature-resistant environment-friendly PC/ABS material is prepared through melt extrusion granulation.
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