CN111087748B - Antistatic ABS resin composition with improved chemical resistance and preparation method thereof - Google Patents
Antistatic ABS resin composition with improved chemical resistance and preparation method thereof Download PDFInfo
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- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 title claims abstract description 96
- 239000000126 substance Substances 0.000 title claims abstract description 47
- 239000011342 resin composition Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 53
- 239000003607 modifier Substances 0.000 claims abstract description 39
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 21
- 239000004677 Nylon Substances 0.000 claims abstract description 17
- 229920001778 nylon Polymers 0.000 claims abstract description 17
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 29
- 229920006118 nylon 56 Polymers 0.000 claims description 20
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 13
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 12
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 229920001897 terpolymer Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 claims description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- KUFNEMCYFOJAGR-UHFFFAOYSA-N 4-benzyl-2h-triazole Chemical compound C=1C=CC=CC=1CC1=CNN=N1 KUFNEMCYFOJAGR-UHFFFAOYSA-N 0.000 claims description 3
- 229940123457 Free radical scavenger Drugs 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000002516 radical scavenger Substances 0.000 claims description 3
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 3
- 229960001860 salicylate Drugs 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 2
- 239000000049 pigment Substances 0.000 abstract description 18
- 230000001681 protective effect Effects 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 16
- 239000000463 material Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003502 gasoline Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000516 sunscreening agent Substances 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008269 hand cream Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002087 whitening effect Effects 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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- 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
Abstract
The invention discloses an antistatic ABS resin composition with improved chemical resistance and a preparation method thereof, wherein the raw materials comprise the following components in parts by weight: 80-93 parts of bulk ABS resin, 4-13 parts of heat-resistant modifier, 563-16 parts of nylon, 0.05-2.0 parts of processing aid, 0.05-2.0 parts of weather-resistant aid and a proper amount of color matching pigment. The antistatic ABS resin composition with improved chemical resistance can be obtained by premixing the raw materials in a high-speed mixer and then passing the premix through a double-screw extruder. The antistatic ABS resin with improved chemical resistance provided by the invention has high impact toughness, good high-temperature resistance and excellent chemical resistance and antistatic property, and is particularly suitable for internal and external ornaments such as door panel stretching, seat armrests, electrical connection protective housings and the like.
Description
Technical Field
The invention relates to the technical field of high polymer material processing, in particular to an antistatic ABS resin composition with improved chemical resistance and a preparation method thereof.
Background
With the gradual progress of the lightweight process of automobiles, the specific gravity of plastics and products thereof on automobiles is gradually increased, wherein ABS materials are widely applied to interior and exterior materials of automobiles due to the characteristics of high strength, good toughness, easy processing, better gloss and the like. The ABS resin in the current market is divided into two types of ABS resin, namely emulsion method and bulk method, according to the production method, the ABS resin rubber prepared by the emulsion method has relatively small particle size, relatively high acrylonitrile content and good chemical resistance, but has poor emission, and is generally used for exterior decoration paint spraying parts; the ABS prepared by the bulk method is a base material modified by the ABS material of the interior trim part due to pure preparation process, small environmental pollution and good emission, but the rubber particle size is relatively large, the acrylonitrile content is relatively low, so the chemical resistance is low, the problems of whitening and cracking of the surface and the like of related products are easily caused when the related products contact substances such as gasoline, engine oil, sun cream and the like, and the application of the ABS in oil-related parts is limited. In addition, the surface resistivity of the ABS resin is generally more than or equal to 10^4 omega, and the ABS resin has no conductive effect, so that the use of the ABS resin in automobile electric parts, outer covers and the like is limited.
Chinese patent document CN106317753 reports that an ABS material with improved chemical resistance is prepared by modifying ABS with 4-10 parts of PA6, and the introduction of a heat-resistant auxiliary agent also improves the high-temperature resistance of ABS. However, ABS having improved chemical resistance and antistatic effect has not been reported.
Disclosure of Invention
The invention aims to provide an antistatic ABS resin composition with improved chemical resistance and a preparation method thereof, and aims to solve the problems of low chemical resistance and weak conductivity of the existing material.
In order to achieve the purpose, the invention provides the following technical scheme:
an antistatic ABS resin composition with improved chemical resistance is characterized in that the composition comprises the following components in parts by weight:
in the above ABS resin composition:
the bulk ABS resin is acrylonitrile-butadiene-styrene copolymer, the weight average molecular weight is 10,000-20,000g/mol, the butadiene content is 8-17%, and the acrylonitrile content is 22-32%.
The heat-resistant modifier is one or more of terpolymer of maleic anhydride and methyl methacrylate and styrene or terpolymer of maleic anhydride and acrylonitrile and styrene or terpolymer of N-phenylmaleimide and maleic anhydride and styrene or multipolymer of N-phenylmaleimide and maleic anhydride, alpha-methylstyrene and acrylonitrile, and the maleic anhydride content of the heat-resistant modifier is 4-10%.
The glass transition temperature of the heat-resistant agent modifier is 120-200 ℃.
The content of the amino-terminated group of the nylon 56 is 45-55%, the relative viscosity is 2.2-2.7, and the saturated water absorption is 12-15%.
The processing aid comprises a lubricant and a release agent. The lubricant is pentaerythritol stearate or ethylene bis-stearamide, and the release agent is a silicone release agent.
The weather-resistant auxiliary agent comprises an antioxidant and a light-resistant aging auxiliary agent. The antioxidant is hindered phenol antioxidant or phosphite antioxidant, and the light-resistant aging auxiliary agent is one or more of salicylate, benzophenone, UV absorbent of benzyl triazole and hindered amine free radical scavenger.
The invention also provides a preparation method of the antistatic ABS resin composition with improved chemical resistance, which comprises the following steps:
(1) preparing materials according to the following components and contents: 80-93 parts of bulk ABS resin, 4-13 parts of heat-resistant modifier, 563-16 parts of nylon, 0.05-2.0 parts of processing aid, 0.05-2.0 parts of weather-resistant aid and color matching pigment;
(2) premixing the raw materials in the step (1) in a high-speed mixer;
(3) and (3) melting and extruding the premix obtained in the step (2) through a double-screw extruder at the extrusion temperature of 220-250 ℃ and the screw rotating speed of 200-500 r/min, and cooling and granulating to obtain the antistatic ABS resin composition with improved chemical resistance.
Compared with the prior art, the invention has the following advantages:
the invention selects and adds a small amount of nylon 56 resin with specific amino end group content to improve the chemical resistance of the bulk ABS resin. The diamine-pentamethylene diamine in the nylon 56 is derived from biological components, is environment-friendly and sustainable, the nylon 56 with specific viscosity and specific amino end content can ensure sufficient chemical resistance while ensuring good dispersion with the bulk ABS, and the nylon 56 has high hygroscopicity, so that the chemical resistance of the ABS material is improved, and the material is endowed with antistatic property and comfortable touch feeling, and high impact toughness is ensured. The preparation method and the technical process of the invention are simple, the cost is low, the processing process is stable, and the preparation method is very suitable for industrial production.
Detailed Description
The following examples and comparative examples use raw material information:
the mass-produced ABS resin has a weight-average molecular weight of 10,000-20,000g/mol, a butadiene content of 8-17% and an acrylonitrile content of 22-32%.
The heat-resistant modifier is one or more of terpolymer of maleic anhydride and methyl methacrylate, styrene or terpolymer of maleic anhydride and acrylonitrile, styrene or terpolymer of N-phenylmaleimide and maleic anhydride, styrene or multipolymer of N-phenylmaleimide and maleic anhydride, alpha-methylstyrene and acrylonitrile, and the maleic anhydride content of the heat-resistant modifier is 4-10%.
The content of the end amino group of the nylon 56 is 45-55%, the relative viscosity is 2.2-2.7, and the saturated water absorption is 12-15%.
The lubricant is pentaerythritol stearate or ethylene bis-stearamide, the release agent is a silicone release agent, the antioxidant is a hindered phenol antioxidant or phosphite antioxidant, and the light-resistant aging auxiliary agent is one or more of salicylate, benzophenone, the benzyl triazole UV absorbent and hindered amine free radical scavenger.
Performance evaluation method and test standard thereof
The ABS resin compositions were subjected to conventional mechanical properties, surface resistance and chemical resistance tests and standards, and the results are shown in Table 1.
Charpy notched impact strength: according to ISO 179-1: 2010(E) standard test, impact energy 4J;
vicat softening temperature: tested according to ISO 306:2013(E) Standard B50;
bending strength: testing according to ISO 178:2010(E) standard, wherein the testing speed is 2 mm/min;
flexural modulus: testing according to ISO 178:2010(E) standard, wherein the testing speed is 2 mm/min;
melt flow rate: tested according to ISO 1133-1:2011(E) Standard B, at 220 ℃ 10 kg;
surface resistivity: testing according to GB/T1410-2006 standard;
sun cream and gasoline resistance: and (3) coating hand cream and gasoline on a light plate with 100 x 100mm, standing for 24 hours at normal temperature, and observing the change condition of the surface.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 2
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 82 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 5612 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 3
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 90 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 564 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 4
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.5 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 5
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.7 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 6
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 45%.
Example 7
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 55%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 8
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 82 parts of bulk ABS resin, 13 parts of heat-resistant modifier, 565 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 9
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 4%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 10
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 10%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 11
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 10,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Example 12
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 569 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 20,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Comparative example 1
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 100 parts of bulk ABS resin, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Of the above raw materials, the mass ABS resin had a weight average molecular weight of 15,000 g/mol.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-250 ℃ and the screw rotating speed of 200-500 r/min, and cooling and granulating to obtain the modified ABS resin.
Comparative example 2
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 15 parts of heat-resistant modifier, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the maleic anhydride content of the heat resistance modifier was 6%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Comparative example 3
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 5615 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the relative viscosity of nylon 56 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Comparative example 4
An antistatic ABS resin composition with improved chemical resistance is prepared from the following raw materials in parts by weight: 85 parts of bulk ABS resin, 6 parts of heat-resistant modifier, 69 parts of nylon, 0.1 part of processing aid, 0.1 part of weather-resistant aid and a proper amount of color matching pigment.
Among the above raw materials, the mass ABS resin has a weight average molecular weight of 15,000 g/mol; the content of maleic anhydride of the heat-resistant modifier is 6%; the relative viscosity of nylon 6 was 2.2 and the amino end group content was 50%.
(1) Premixing the raw materials in a high-speed mixer;
(2) and (3) melting and extruding the premix obtained in the step (1) through a double-screw extruder at the extrusion temperature of 220-.
Table 1 materials formulation table
Table 2 performance of the examples/comparative examples
Claims (9)
1. An antistatic ABS resin composition with improved chemical resistance, which is characterized in that: the raw materials of the composition comprise the following components in parts by weight:
80-93 parts of bulk ABS resin;
4-13 parts of heat-resistant modifier;
nylon 563-16;
0.05-2.0 parts of processing aid;
0.05-2.0 parts of weather-resistant auxiliary agent;
the content of the amino-terminated group of the nylon 56 is 45-55%, the relative viscosity is 2.2-2.7, and the saturated water absorption is 12-15%.
2. The antistatic ABS resin composition with improved chemical resistance according to claim 1, wherein: the bulk ABS resin is acrylonitrile-butadiene-styrene copolymer, the weight average molecular weight is 10,000-20,000g/mol, the butadiene content is 8-17%, and the acrylonitrile content is 22-32%.
3. The antistatic ABS resin composition with improved chemical resistance according to claim 1, wherein: the heat-resistant modifier is one or more of terpolymer of maleic anhydride and methyl methacrylate and styrene or terpolymer of maleic anhydride and acrylonitrile and styrene or terpolymer of N-phenylmaleimide and maleic anhydride and styrene or multipolymer of N-phenylmaleimide and maleic anhydride, alpha-methylstyrene and acrylonitrile.
4. The antistatic ABS resin composition with improved chemical resistance according to claim 3, wherein: the maleic anhydride content of the heat-resistant modifier is 4-10%.
5. The antistatic ABS resin composition with improved chemical resistance according to claim 3, wherein: the glass transition temperature of the heat-resistant modifier is 120-200 ℃.
6. The antistatic ABS resin composition with improved chemical resistance according to claim 1, wherein: the processing aid comprises a lubricant and a release agent.
7. The antistatic ABS resin composition with improved chemical resistance according to claim 6, wherein: the lubricant is pentaerythritol stearate or ethylene bis-stearamide, and the release agent is a silicone release agent.
8. The antistatic ABS resin composition with improved chemical resistance according to claim 1, wherein: the weather-resistant auxiliary agent comprises an antioxidant and a light-resistant aging auxiliary agent; the antioxidant is hindered phenol antioxidant or phosphite antioxidant, and the light-resistant aging auxiliary agent is one or more of salicylate, benzophenone, UV absorbent of benzyl triazole and hindered amine free radical scavenger.
9. The method for preparing an antistatic ABS resin composition having improved chemical resistance as recited in any one of claims 1 to 8, wherein: the method comprises the following steps:
(1) preparing the composition and content as recited in claim 1;
(2) premixing the raw materials in the step (1) in a high-speed mixer;
(3) and (3) melting and extruding the premix obtained in the step (2) through a double-screw extruder at the extrusion temperature of 220-250 ℃ and the screw rotating speed of 200-500 r/min, and cooling and granulating to obtain the antistatic ABS resin composition with improved chemical resistance.
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| CN114031887A (en) * | 2021-10-14 | 2022-02-11 | 海信视像科技股份有限公司 | Modified ABS material and preparation method thereof |
| CN114227979A (en) * | 2021-11-26 | 2022-03-25 | 北方华锦化学工业股份有限公司 | Method for modifying antistatic property of ABS (acrylonitrile butadiene styrene) resin by biomass carbon material |
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| CN106317753A (en) * | 2016-08-18 | 2017-01-11 | 上海锦湖日丽塑料有限公司 | Heat-resistant ABS resin composition for improving chemical resistance |
| CN106751801A (en) * | 2016-12-12 | 2017-05-31 | 广东威林工程塑料股份有限公司 | A kind of weather resistant lightweight shading dumb light PA56/ASA alloy materials and preparation method thereof |
| CN107501928A (en) * | 2017-09-15 | 2017-12-22 | 滁州吉胜新材料科技有限公司 | Hydrolysis nylon material and preparation method thereof |
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| CN106317753A (en) * | 2016-08-18 | 2017-01-11 | 上海锦湖日丽塑料有限公司 | Heat-resistant ABS resin composition for improving chemical resistance |
| CN106751801A (en) * | 2016-12-12 | 2017-05-31 | 广东威林工程塑料股份有限公司 | A kind of weather resistant lightweight shading dumb light PA56/ASA alloy materials and preparation method thereof |
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