CN110982214A - Environment-friendly, antistatic, heat-resistant and wear-resistant ABS material and preparation method thereof - Google Patents
Environment-friendly, antistatic, heat-resistant and wear-resistant ABS material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 96
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 96
- 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 abstract description 66
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 66
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000314 lubricant Substances 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 10
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 229920006132 styrene block copolymer Polymers 0.000 claims description 8
- 239000012745 toughening agent Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 6
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 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 group 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
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims description 2
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920000428 triblock copolymer Polymers 0.000 claims description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 11
- 229920006243 acrylic copolymer Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229920000058 polyacrylate Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011056 performance test Methods 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- 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
- C08K2201/001—Conductive 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
- C08L2201/04—Antistatic
-
- 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
Abstract
The invention provides an environment-friendly, antistatic, heat-resistant and wear-resistant ABS material and a preparation method thereof, and the ABS material comprises the following components in percentage by weight: 58 to 73.2 percent of acrylonitrile-butadiene-styrene copolymer (ABS) resin, 20 to 25 percent of potassium titanate whisker, 1 to 5 percent of compatilizer, 5 to 10 percent of flexibilizer, 0.4 to 1 percent of antioxidant, 0.2 to 0.5 percent of lubricant and 0.2 to 1 percent of molybdenum disulfide. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material disclosed by the invention has the advantages that the antistatic property, the heat resistance and the wear resistance of the material can be improved, and the mechanical property of the material can be kept at the existing level.
Description
Technical Field
The invention belongs to the field of modified plastics, and particularly relates to an environment-friendly, antistatic, heat-resistant and wear-resistant ABS material and a preparation method thereof.
Background
Similar to other plastics such as PP and PS, the common acrylonitrile-butadiene-styrene copolymer (ABS) material has large surface resistance, belongs to an insulating material, is easy to generate static electricity and adsorb dust when in use. Some antistatic acrylonitrile-butadiene-styrene copolymer (ABS) materials obtained by modification can improve electrostatic dust collection to a certain extent, but the duration of the antistatic effect is limited; some antistatic ABS obtained by modification means has long duration of antistatic effect, but the toughness of the material is poor due to more parts of conductive components, and the conventional modification of antistatic function by using conductive carbon black and carbon fibers belongs to the category. Conventional polymer-type antistatic agents tend to weaken the mechanical properties of the material and deteriorate the heat resistance and abrasion resistance. The common acrylonitrile-butadiene-styrene copolymer (ABS) material has a general surface wear-resistant effect, and is easy to scratch and damage on the upper surface of a product which is easy to generate friction. Meanwhile, the conventionally used antistatic raw material has a slight effect of improving the wear resistance of the material. At present, no acrylonitrile-butadiene-styrene copolymer (ABS) material can simultaneously give consideration to the performances of static resistance, heat resistance and wear resistance.
Chinese patents CN1062080111 and CN201811046164 disclose a high-toughness wear-resistant ABS material and a high-strength wear-resistant ABS respectively, both of the two material components contain polyvinyl chloride, which may result in poor heat resistance of the material, and at the same time, the polyvinyl chloride contains a halogen component chlorine, which does not meet the current international environmental protection requirement for halogen-free, and at the same time, the two materials do not have antistatic function. Chinese patent CN108530820A discloses an antistatic and wear-resistant ABS material, in which polyethylene oxide, an antistatic agent, has antistatic and auxiliary effects on dispersion of plant fibers, and does not contribute to wear resistance.
At present, no Chinese patent of acrylonitrile-butadiene-styrene copolymer (ABS) material which can simultaneously consider the performances of environmental protection, static resistance, heat resistance and wear resistance is detected.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an environment-friendly, antistatic, heat-resistant, and wear-resistant ABS material, so as to solve the problems of low environment-friendly grade, easy dust absorption, heat resistance, wear resistance, and the like of the existing wear-resistant ABS material; the invention also aims to provide a preparation method of the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an environment-friendly, antistatic, heat-resistant and wear-resistant ABS material comprises the following components in percentage by weight:
the acrylonitrile-butadiene-styrene copolymer (ABS) resin is preferably acrylonitrile-butadiene-styrene copolymer (ABS) resin with the acrylonitrile content of more than 70%, and the melt flow rate of the acrylonitrile-butadiene-styrene copolymer (ABS) resin is 35-55g/10min (220 ℃, 10 kg).
Furthermore, the potassium titanate whisker material is a whisker with conductivity, and is prepared from the potassium titanate whisker by adopting a reduction method and a conductive layer coating method.
Preferably, the compatilizer is an acrylate copolymer;
more preferably, the acrylic copolymer is one of an ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer, an ethylene-methyl acrylate copolymer and an ethylene-butyl acrylate copolymer.
The toughening agent is a styrene block copolymer;
as a further preference, the styrene block copolymer is one of styrene-butadiene block copolymers having a relative molecular mass of 100000-120000;
the antioxidant is 1010;
the lubricant is Ethylene Bis Stearamide (EBS);
the wear-resisting agent is molybdenum disulfide.
The invention also aims to provide a preparation method of the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a preparation method of an environment-friendly, antistatic, heat-resistant and wear-resistant ABS material comprises the following steps:
the method comprises the following steps: weighing acrylonitrile-butadiene-styrene copolymer (ABS) resin, a compatilizer, a toughening agent and a processing aid according to the weight percentage, mixing the acrylonitrile-butadiene-styrene copolymer (ABS) resin, the compatilizer, the toughening agent and the processing aid in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
step two: and (2) feeding the uniformly mixed premix into an extruder from a main feeding port of the extruder, feeding the potassium titanate whiskers into a screw cylinder of the extruder from a side feeding port of the extruder, and melting, extruding and granulating the raw materials in the extruder to obtain the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material.
Preferably, the extruder in the second step is a twin-screw extruder, and the melting temperature is set to 190-260 ℃.
More preferably, the processing conditions of the melt extrusion by the extruder in the second step are as follows: the temperature of the first zone is 180-210 ℃, the temperature of the second zone is 215-235 ℃, the temperature of the third zone is 215-235 ℃, the temperature of the fourth zone is 215-235 ℃, the temperature of the fifth zone is 225-245 ℃, the temperature of the sixth zone is 225-245 ℃, the temperature of the seventh zone is 225-245 ℃, the temperature of the eighth zone is 225-245 ℃, the temperature of the ninth zone is 215-235 ℃ and the rotation speed of the host machine is 250-360 r/min.
Compared with the prior art, the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material and the preparation method thereof have the following advantages:
(1) after the conductive potassium titanate whisker material is added into the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material, the conductive potassium titanate whisker belongs to a permanent conductive filler, and forms a conductive network for conducting electrons in the material, so that the material has the characteristic of long-term antistatic property; in addition, because the acrylonitrile-butadiene-styrene copolymer (ABS) resin is a graft copolymer of three monomers of acrylonitrile (A), butadiene (B) and styrene (S), the ABS resin has better polymerization degree, various bonding bonds in the ABS resin have good compatibility with crystal lattices of potassium titanate whiskers, and when the content of the added potassium titanate whiskers accounts for about 30 percent of the content of the ABS resin, the material is still ensured to be easy to process;
(2) according to the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material, the added potassium titanate whiskers have a long and thin special structure, are small in internal defect and high in strength, and have excellent mechanical property and physical property, so that the overall isotropy and surface hardness of the obtained material are increased, the friction coefficient of the surface of the material is reduced, and the potassium titanate whiskers and molybdenum disulfide which is added into a system as a wear-resistant agent can cooperate to improve the wear resistance of the material;
(3) the potassium titanate whisker added in the invention has better heat resistance, so that the surface of the material is not subjected to high temperature when being rubbed, and the heat resistance of the material is ensured, and the wear resistance of the material is further ensured;
(4) according to the invention, the preferable compatilizer is an acrylic copolymer added into the system, the acrylic copolymer and the potassium titanate whisker have better compatibility in structure, the interface strength can be improved, and the synergistic effect between the acrylic copolymer and the potassium titanate whisker can improve the mechanical property of the material while facilitating the material processing;
(5) according to the invention, the preferable compatilizer is an acrylate copolymer, the compatibility between the acrylate copolymer and acrylonitrile-butadiene-styrene copolymer (ABS) resin is good, and as the ABS resin contains side phenyl groups and the acrylate copolymer contains hydroxyl groups, the acrylonitrile content in the ABS is limited to be more than 70%, the degree of freedom of the side phenyl groups of the ABS resin can be improved, the side phenyl groups of the ABS resin can be combined with the hydroxyl groups in the acrylate copolymer more favorably, the binding force is strengthened, the compatibility is improved, and the material is further ensured to be easy to process;
(6) according to the invention, the preferable compatilizer is an acrylate copolymer which has good thermal oxidation resistance and can be matched with the antioxidant 1010 to further ensure the integral oxidation resistance of the material;
(7) according to the invention, the preferable compatilizer is acrylate copolymer which has better adhesive strength and durability, so that an adhesive part has certain elasticity and toughness and can cooperate with the styrene block copolymer to ensure the integral mechanical property of the material to a certain extent;
(8) according to the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material, the preferred wear-resistant agent is molybdenum disulfide, the preferred lubricant is Ethylene Bis Stearamide (EBS), and the characteristics of the molybdenum disulfide and the EBS are utilized to cooperatively ensure the lubrication degree of the material in the processing process, so that the processing difficulty of the material is reduced; in addition, the addition of Ethylene Bis Stearamide (EBS) can increase the surface gloss of the material and improve the appearance performance of the material.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples 1 to 3 and comparative example 2
An environment-friendly, antistatic, heat-resistant and wear-resistant ABS material is shown in Table 1, and the preparation method comprises the following steps:
the method comprises the following steps: weighing acrylonitrile-butadiene-styrene copolymer (ABS) resin, acrylate polymer, styrene block copolymer, antioxidant 1010, lubricant EBS and wear-resistant agent molybdenum disulfide according to weight percentage, mixing the materials in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
step two: feeding the uniformly mixed premix into an extruder from a main feeding port of the extruder, feeding the potassium titanate whiskers into a screw cylinder of the extruder from a side feeding port of the extruder, and melting, extruding and granulating the raw materials in the extruder to obtain the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material;
the processing conditions of the melt extrusion of the extruder in the second step are as follows: the temperature of the first zone is 180-.
The prepared granules of the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material are injected into corresponding samples for testing, and the test results are shown in Table 2.
Comparative example 1
A carbon black-filled modified acrylonitrile-butadiene-styrene copolymer (ABS) material, the raw material formula of which is shown in Table 1, is prepared by the following steps:
the method comprises the following steps: weighing acrylonitrile-butadiene-styrene copolymer (ABS) resin, a compatilizer, a toughening agent and a processing aid according to the weight percentage, mixing the acrylonitrile-butadiene-styrene copolymer (ABS) resin, the compatilizer, the toughening agent and the processing aid in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
step two: feeding the uniformly mixed premix into an extruder from a main feeding port of the extruder, feeding the conductive carbon black into a screw cylinder of the extruder from a side feeding port of the extruder, melting, extruding, granulating and drying the raw materials in the extruder to obtain the material of the comparative example 1; the processing conditions of the melt extrusion of the extruder are the prior art, and are not described herein again.
The pellets of the ABS material of comparative example 1 thus prepared were injection molded into corresponding test specimens and tested, the test results being shown in Table 2.
The specific formulation compositions of the raw materials of examples 1 to 3 and comparative examples 1 to 2 are shown in Table 1, and the results of the performance tests of examples 1 to 3 and comparative examples 1 to 2 are shown in Table 2.
TABLE 1 raw material formulation (in weight percent) of examples and comparative examples
TABLE 2 test data for examples and comparative examples
According to table 1 and table 2, it can be found that:
(1) compared with the comparative examples 1-2, the comparative examples 1-3 have obviously reduced surface resistance, which shows that the antistatic property of the whole material is obviously improved; the heat distortion temperature is slightly increased, which shows that the heat resistance of the whole material is improved to a certain extent; the abrasion loss is obviously reduced, which shows that the integral abrasion resistance of the material is obviously improved; in addition, the mechanical property of the whole material is also maintained to a certain extent;
(2) compared with the comparative example 2, the proportion of the potassium titanate whisker of the example 3 is increased to 20 percent, the thermal deformation temperature is increased by 8 ℃, and the heat resistance of the material is obviously improved; the abrasion loss is obviously reduced, and the wear resistance is improved;
(3) compared with the embodiment 3, the embodiment 1 adds more potassium titanate whiskers, compatilizers and tougheners, and the Izod notch impact strength value of the material is 5.5KJ/m2Increased to 15KJ/m2The toughness of the whole material is obviously improved;
(4) compared with the embodiments 1 and 3, the embodiment 2 adopts more molybdenum disulfide, has low abrasion loss, and shows that the overall wear-resistant effect of the material is obviously improved.
The specific reason is analyzed as follows:
the potassium titanate whisker can form a conductive network for conducting electrons in the material, and belongs to a permanent conductive filler, so that the potassium titanate whisker can obviously improve the long-term antistatic property of the whole material;
because the acrylonitrile-butadiene-styrene copolymer (ABS) resin is a graft copolymer of three monomers of acrylonitrile (A), butadiene (B) and styrene (S), the ABS resin has better polymerization degree, various bonding bonds in the ABS resin have good compatibility with crystal lattices of potassium titanate whiskers, and when the content of the added potassium titanate whiskers accounts for about 30 percent of the content of the ABS resin, the material is still ensured to be easy to process;
the potassium titanate whisker has a slender special structure, small internal defect, high strength and excellent mechanical property and physical property, and can increase the isotropy and surface hardness of the whole material and reduce the friction coefficient of the surface of the material, so the potassium titanate whisker and molybdenum disulfide which is added into a system as a wear-resistant agent can cooperate to improve the wear resistance of the material;
the potassium titanate whisker has better heat resistance, so that the heat resistance of the whole material can be obviously improved, a high-temperature phenomenon is not caused when the surface of the material is rubbed, and the potassium titanate whisker further ensures the wear resistance of the material while improving the heat resistance of the material;
because the acrylate polymer added into the system as the compatilizer has better adhesive strength and durability, the acrylate polymer can cooperate with the styrene block copolymer added into the system as the flexibilizer to ensure the overall mechanical property of the material; in addition, the structure of the acrylic polymer and the potassium titanate whisker has better compatibility, the interface strength can be improved, and the overall mechanical property of the material is further improved; therefore, the acrylate polymer, the potassium titanate whisker and the styrene block copolymer have a mutual matching relationship, and the overall mechanical property of the material is ensured;
the acrylic copolymer and acrylonitrile-butadiene-styrene copolymer (ABS) resin have good compatibility, and the ABS resin contains side phenyl groups, and the acrylic copolymer contains hydroxyl groups, so that the acrylonitrile content in the ABS is limited to more than 70%, the degree of freedom of the side phenyl groups of the ABS resin can be improved, the side phenyl groups of the ABS resin can be combined with the hydroxyl groups in the acrylic copolymer more favorably, the binding force is strengthened, the compatibility is improved, and the material is further ensured to be easy to process;
in addition, the compatilizer has good thermal oxidation resistance, can be matched with an antioxidant, and further ensures the integral oxidation resistance of the material.
In summary, the environmental-friendly, antistatic, heat-resistant and wear-resistant ABS material provided by the invention can establish a synergistic relationship among different components by optimizing the use types of the compatilizer, the flexibilizer and the lubricant and adding the potassium titanate whisker and the molybdenum disulfide, and the mechanical properties of the material can be kept at the existing level while the antistatic property, the heat resistance and the wear resistance of the material are improved due to the mutual matching of the components; in addition, the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material does not use raw materials containing halogen in the preparation process, and reflects excellent environment-friendly characteristics.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An environment-friendly, antistatic, heat-resistant and wear-resistant ABS material is characterized by comprising the following components in percentage by weight:
the acrylonitrile-butadiene-styrene copolymer (ABS) resin is preferably acrylonitrile-butadiene-styrene copolymer (ABS) resin with the acrylonitrile content of more than 70 percent, and the melt flow rate of the acrylonitrile-butadiene-styrene copolymer (ABS) resin is 35-55g/10min (220 ℃, 10 kg);
the potassium titanate whisker material is a whisker with conductivity, and is prepared by the potassium titanate whisker by adopting a reduction method and a conductive layer coating method;
the compatilizer is acrylate copolymer.
2. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 1, wherein: the acrylate copolymer is one of ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer, ethylene-methyl acrylate copolymer and ethylene-butyl acrylate copolymer.
3. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 1, wherein: the toughening agent is a styrene block copolymer.
4. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 3, wherein: the styrene block copolymer is one of styrene-butadiene block copolymers, and the relative molecular mass thereof is 100000-120000.
5. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 1, wherein: the antioxidant is antioxidant 1010.
6. The environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 1, wherein: the lubricant is Ethylene Bis Stearamide (EBS).
7. The method for preparing an environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in any of claims 1 to 6, wherein the method comprises the following steps:
s1: weighing acrylonitrile-butadiene-styrene copolymer (ABS) resin, a compatilizer, a toughening agent and a processing aid according to the weight percentage, mixing the acrylonitrile-butadiene-styrene copolymer (ABS) resin, the compatilizer, the toughening agent and the processing aid in a high-speed mixer for 1-3min, and uniformly mixing to obtain a premix;
s2: and (2) feeding the uniformly mixed premix into an extruder from a main feeding port of the extruder, feeding the potassium titanate whiskers into a screw cylinder of the extruder from a side feeding port of the extruder, and melting, extruding and granulating the raw materials in the extruder to obtain the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material.
8. The preparation method of the environment-friendly, antistatic, heat-resistant and wear-resistant ABS material as claimed in claim 7, wherein the preparation method comprises the following steps:
the extruder described in S2 is a twin-screw extruder;
the melt extrusion processing conditions of the double-screw extruder are as follows: the temperature of the first zone is 180-210 ℃, the temperature of the second zone is 215-235 ℃, the temperature of the third zone is 215-235 ℃, the temperature of the fourth zone is 215-235 ℃, the temperature of the fifth zone is 225-245 ℃, the temperature of the sixth zone is 225-245 ℃, the temperature of the seventh zone is 225-245 ℃, the temperature of the eighth zone is 225-245 ℃, the temperature of the ninth zone is 215-235 ℃ and the rotation speed of the host machine is 250-360 r/min.
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