CN113736275A - High-strength wear-resistant plastic material and preparation method thereof - Google Patents
High-strength wear-resistant plastic material and preparation method thereof Download PDFInfo
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Abstract
The invention discloses a high-strength wear-resistant plastic material which is characterized by being prepared from the following components in parts by weight: 10-15 parts of thermoplastic elastomer TPEE, 8-12 parts of hyperbranched polyphenylene sulfide, 6-10 parts of amino-terminated hyperbranched polyimide, 5-8 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer, 2-5 parts of glass fiber, 0.3-0.6 part of phosphorus pentoxide, 0.1-0.2 part of polyphosphoric acid and 1-3 parts of environment-friendly plasticizer. The invention also provides a preparation method of the high-strength wear-resistant plastic material. The high-strength wear-resistant plastic material provided by the invention has good comprehensive performance and performance stability, and good mechanical property, ageing resistance, wear resistance and flame retardance.
Description
Technical Field
The invention relates to the technical field of plastic materials, in particular to a high-strength wear-resistant plastic material and a preparation method thereof.
Background
In recent years, with the progress of science and technology, the development of society and the increasingly improved living standard of people, plastic materials are more widely used and are indispensable parts in household appliances, automobiles, mobile phones, PCs, medical appliances and lighting appliances. With the further widening of the application range, the requirements on the performance of the flame retardant are higher and higher, and the flame retardant is required to have excellent mechanical property, wear resistance, heat resistance, aging resistance, chemical corrosion resistance and flame retardance.
With the use of a large amount of plastic materials, the defects of the traditional plastic materials are gradually highlighted, for example, the traditional plastic materials are unstable in quality, poor in ageing resistance, prone to cracking, poor in wear resistance, oil resistance, oxidation resistance and flame retardance, brittle in property, low in impact strength, and prone to stress cracking due to the rigidity of molecular chains. In order to improve the above properties, additives with various functions are usually added to the plastic materials on the market, and the addition of a large amount of these additives causes poor processing fluidity, and the compatibility of these additives with the plastic base material is poor, so that the external permeation phenomenon is likely to occur during the long-term use, and the performance stability needs to be further improved.
For example, the Chinese patent application No. 201410470883.2 discloses a wear-resistant plastic material, which comprises 75 parts of rubber particles, 160 parts of polyepichlorohydrin, 1 part of block copolymer polypropylene, 5 parts of sodium hydrosulfide, 2 parts of acrylate copolymer, 4 parts of white carbon black, 6 parts of xylitol, 7 parts of elastic polyethylene and 4 parts of processing aid. The plastic prepared by the invention has good wear resistance, and the compatibility with PVC is enhanced by adopting a method of treating a high-hardness wear-resistant modifier with a coupling agent. The wear-resistant plastic floor reduces maintenance cost, is not easy to deform and crack, is more wear-resistant than common wood floors, cannot mildew like wood floors even being wetted, and ensures that indoor air is safer. However, the compatibility between the components of the plastic material is poor, and the performance stability, the aging resistance and the comprehensive performance are required to be further improved.
There is still a need in the art for a high-strength wear-resistant plastic material with good combination properties and performance stability, and good mechanical properties, aging resistance, wear resistance and flame retardance.
Disclosure of Invention
In order to solve the problems described in the background technology, the invention provides a high-strength wear-resistant plastic material with good comprehensive performance and performance stability, and good mechanical property, ageing resistance, wear resistance and flame retardance; meanwhile, the invention also provides a preparation method of the high-strength wear-resistant plastic material, which is simple and feasible, convenient to operate, low in equipment investment, low in energy consumption, high in preparation efficiency and finished product qualification rate, and suitable for continuous large-scale production.
The technical scheme adopted by the invention is that the high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 10-15 parts of thermoplastic elastomer TPEE, 8-12 parts of hyperbranched polyphenylene sulfide, 6-10 parts of amino-terminated hyperbranched polyimide, 5-8 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer, 2-5 parts of glass fiber, 0.3-0.6 part of phosphorus pentoxide, 0.1-0.2 part of polyphosphoric acid and 1-3 parts of environment-friendly plasticizer.
In a preferred embodiment, the environmentally friendly plasticizer is at least one of tributyl citrate, trioctyl citrate and epoxidized soybean oil.
In a preferred embodiment, the glass fibers have an average diameter of 3 to 9 μm and an aspect ratio of (20 to 30): 1.
As a preferred embodiment, the method for preparing the sulfomethoxysilyl benzotriazole-based epoxy copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-5 hours at 65-75 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain the sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer.
In a preferred embodiment, the mass ratio of the 2-acrylamido-2-methylpropanesulfonic acid, the 3- (methacryloyloxy) propyltrimethoxysilane, the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, the 2- [3- (2H-benzotriazol-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the 2, 3-epoxypropyl acrylate, the initiator and the high boiling point solvent is (2-3):0.8, (1-2): 0.3-0.5):1, (0.05-0.07): 25-35).
As a preferred embodiment, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
As a preferred embodiment, the high boiling point solvent is at least one of dimethylsulfoxide, N-dimethylformamide, N-dimethylacetamide, and N-methylpyrrolidone; the inert gas is any one of nitrogen, helium, neon and argon.
As a preferred embodiment, the amino terminated hyperbranched polyimide is prepared by the method of the embodiment 3 of the Chinese patent application No. 201110145357.5.
As a preferred embodiment, the hyperbranched polyphenylene sulfide is prepared by the method of chinese patent application No. 200710046844.X, example 1.
As a preferred embodiment, the thermoplastic elastomer TPEE is selected from at least one of the thermoplastic elastomer TPEE with the trademark EM550, the thermoplastic elastomer TPEE with the trademark EM 630.
The invention also aims to provide a preparation method of the high-strength wear-resistant plastic material, which is characterized by comprising the following steps: the components are mixed according to the parts by weight, the mixture is obtained after the components are uniformly stirred, and then the mixture is added into a double-screw extruder for extrusion molding, so that the high-strength wear-resistant plastic material is obtained.
In a preferred embodiment, the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 250-350 r/min.
Detailed Description
The following detailed description of preferred embodiments of the invention will be made.
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 10-15 parts of thermoplastic elastomer TPEE, 8-12 parts of hyperbranched polyphenylene sulfide, 6-10 parts of amino-terminated hyperbranched polyimide, 5-8 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer, 2-5 parts of glass fiber, 0.3-0.6 part of phosphorus pentoxide, 0.1-0.2 part of polyphosphoric acid and 1-3 parts of environment-friendly plasticizer.
In a preferred embodiment, the environmentally friendly plasticizer is at least one of tributyl citrate, trioctyl citrate and epoxidized soybean oil.
In a preferred embodiment, the glass fibers have an average diameter of 3 to 9 μm and an aspect ratio of (20 to 30): 1.
As a preferred embodiment, the method for preparing the sulfomethoxysilyl benzotriazole-based epoxy copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-5 hours at 65-75 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain the sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer.
In a preferred embodiment, the mass ratio of the 2-acrylamido-2-methylpropanesulfonic acid, the 3- (methacryloyloxy) propyltrimethoxysilane, the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, the 2- [3- (2H-benzotriazol-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the 2, 3-epoxypropyl acrylate, the initiator and the high boiling point solvent is (2-3):0.8, (1-2): 0.3-0.5):1, (0.05-0.07): 25-35).
As a preferred embodiment, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
As a preferred embodiment, the high boiling point solvent is at least one of dimethylsulfoxide, N-dimethylformamide, N-dimethylacetamide, and N-methylpyrrolidone; the inert gas is any one of nitrogen, helium, neon and argon.
As a preferred embodiment, the amino terminated hyperbranched polyimide is prepared by the method of the embodiment 3 of the Chinese patent application No. 201110145357.5.
As a preferred embodiment, the hyperbranched polyphenylene sulfide is prepared by the method of chinese patent application No. 200710046844.X, example 1.
As a preferred embodiment, the thermoplastic elastomer TPEE is selected from at least one of the thermoplastic elastomer TPEE with the trademark EM550, the thermoplastic elastomer TPEE with the trademark EM 630.
The invention also aims to provide a preparation method of the high-strength wear-resistant plastic material, which is characterized by comprising the following steps: the components are mixed according to the parts by weight, the mixture is obtained after the components are uniformly stirred, and then the mixture is added into a double-screw extruder for extrusion molding, so that the high-strength wear-resistant plastic material is obtained.
In a preferred embodiment, the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 250-350 r/min.
The invention has the beneficial effects that:
1. the preparation method of the high-strength wear-resistant plastic material is simple and easy to implement, convenient to operate, low in equipment investment, low in energy consumption, high in preparation efficiency and finished product qualification rate, and suitable for continuous large-scale production.
2. The high-strength wear-resistant plastic material overcomes the defects that the existing plastic material is unstable in quality, poor in ageing resistance, easy to crack, poor in wear resistance, oil resistance, oxidation resistance and flame resistance, crisp in property and low in impact strength, stress cracking is easily caused due to the rigidity of a molecular chain, and the performance stability needs to be further improved.
3. The high-strength wear-resistant plastic material is prepared by blending a thermoplastic elastomer TPEE, hyperbranched polyphenylene sulfide, amino-terminated hyperbranched polyimide and sulfo-methoxysilyl benzotriazole epoxy-based copolymer to form a base material, and combining the excellent performances, interaction and mutual influence of the materials, so that the prepared plastic material has excellent mechanical properties, good wear resistance, high temperature resistance and flame retardance, and good comprehensive performance and performance stability.
4. The high-strength wear-resistant plastic material is characterized in that the sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer is formed by blending 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyl trimethoxy silane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate and acrylic acid-2, 3-epoxypropyl ester, and all structural units are synergistic, mutually influenced and interacted, so that the comprehensive performance of the material is further improved; the sulfonic group on the compound can react with the benzene ring on the component with the benzene ring under the catalytic action of phosphorus pentoxide and polyphosphoric acid; epoxy groups on the copolymer can react with amino groups on the amino-terminated hyperbranched polyimide, and trimethoxy silane on the copolymer can be connected with glass fibers through a bridging effect, so that main components are connected by chemical bonds to form a network cross-linked structure, and the comprehensive performance and the performance stability are effectively improved.
5. According to the high-strength wear-resistant plastic material, the benzotriazole structure and the cyano-trifluoromethyl phenyl structure on the copolymer act synergistically, so that the aging resistance and the weather resistance can be improved; the thermoplastic elastomer TPEE can endow the material with toughness and elasticity; the composition is synergistic with other components, and the above properties are obviously improved by the synergistic effect and the mutual cooperation.
Examples
The present invention will be described in further detail with reference to examples.
Example 1
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 10 parts of thermoplastic elastomer TPEE, 8 parts of hyperbranched polyphenylene sulfide, 6 parts of amino-terminated hyperbranched polyimide, 5 parts of sulfo methoxy silicon-based benzotriazole-based epoxy copolymer, 2 parts of glass fiber, 0.3 part of phosphorus pentoxide, 0.1 part of polyphosphoric acid and 1 part of environment-friendly plasticizer.
The environment-friendly plasticizer is tributyl citrate; the average diameter of the glass fiber is 3 μm, and the length-diameter ratio is 20: 1.
The preparation method of the sulfonic acid group methoxy silicon group benzotriazole group epoxy group copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3 hours at 65 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain a sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer; the mass ratio of the 2-acrylamide-2-methylpropanesulfonic acid to the 3- (methacryloyloxy) propyltrimethoxysilane to the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide to the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate to the acrylic acid-2, 3-epoxypropyl ester to the initiator to the high boiling point solvent is 2:0.8:1:0.3:1:0.05: 25; the initiator is azobisisobutyronitrile; the high boiling point solvent is dimethyl sulfoxide; the inert gas is nitrogen.
The thermoplastic elastomer TPEE is selected from thermoplastic elastomer TPEE under the designation EM 550.
The preparation method of the high-strength wear-resistant plastic material is characterized by comprising the following steps: mixing the components in parts by weight, uniformly stirring to obtain a mixed material, and then adding the mixed material into a double-screw extruder for extrusion molding to obtain a high-strength wear-resistant plastic material; the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 250 r/min.
Example 2
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 11 parts of thermoplastic elastomer TPEE, 9 parts of hyperbranched polyphenylene sulfide, 7 parts of amino-terminated hyperbranched polyimide, 6 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer, 3 parts of glass fiber, 0.4 part of phosphorus pentoxide, 0.12 part of polyphosphoric acid and 1.5 parts of environment-friendly plasticizer; the environment-friendly plasticizer is trioctyl citrate; the glass fiber has an average diameter of 4 μm and an aspect ratio of 22: 1.
The preparation method of the sulfonic acid group methoxy silicon group benzotriazole group epoxy group copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3.5 hours at 68 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain a sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer; the mass ratio of the 2-acrylamide-2-methylpropanesulfonic acid, the 3- (methacryloyloxy) propyltrimethoxysilane, the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the acrylic acid-2, 3-epoxypropyl ester, the initiator and the high-boiling point solvent is 2.3:0.8:1.3:0.35:1:0.055: 27; the initiator is azobisisoheptonitrile; the high boiling point solvent is N, N-dimethylformamide; the inert gas is helium.
The thermoplastic elastomer TPEE is selected from thermoplastic elastomer TPEE under the trade name EM 630.
The preparation method of the high-strength wear-resistant plastic material is characterized by comprising the following steps: mixing the components in parts by weight, uniformly stirring to obtain a mixed material, and then adding the mixed material into a double-screw extruder for extrusion molding to obtain a high-strength wear-resistant plastic material; the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 270 r/min.
Example 3
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 13 parts of thermoplastic elastomer TPEE, 10 parts of hyperbranched polyphenylene sulfide, 8 parts of amino-terminated hyperbranched polyimide, 6.5 parts of sulfo methoxy silicon-based benzotriazole-based epoxy copolymer, 3.5 parts of glass fiber, 0.45 part of phosphorus pentoxide, 0.15 part of polyphosphoric acid and 2 parts of environment-friendly plasticizer; the environment-friendly plasticizer is epoxidized soybean oil; the average diameter of the glass fiber is 6 μm, and the length-diameter ratio is 25: 1.
The preparation method of the sulfonic acid group methoxy silicon group benzotriazole group epoxy group copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 4 hours at 70 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain a sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer; the mass ratio of the 2-acrylamide-2-methylpropanesulfonic acid, the 3- (methacryloyloxy) propyltrimethoxysilane, the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the acrylic acid-2, 3-epoxypropyl ester, the initiator and the high boiling point solvent is 2.5:0.8:1.5:0.4:1:0.06: 30; the initiator is azobisisobutyronitrile; the high boiling point solvent is N, N-dimethylacetamide; the inert gas is neon.
The thermoplastic elastomer TPEE is selected from thermoplastic elastomer TPEE under the designation EM 550.
The preparation method of the high-strength wear-resistant plastic material is characterized by comprising the following steps: mixing the components in parts by weight, uniformly stirring to obtain a mixed material, and then adding the mixed material into a double-screw extruder for extrusion molding to obtain a high-strength wear-resistant plastic material; the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 300 r/min.
Example 4
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 14 parts of thermoplastic elastomer TPEE, 11 parts of hyperbranched polyphenylene sulfide, 9.5 parts of amino-terminated hyperbranched polyimide, 7.5 parts of sulfo methoxy silicon-based benzotriazole-based epoxy copolymer, 4.5 parts of glass fiber, 0.5 part of phosphorus pentoxide, 0.18 part of polyphosphoric acid and 2.5 parts of environment-friendly plasticizer.
The environment-friendly plasticizer is formed by mixing tributyl citrate, trioctyl citrate and epoxy soybean oil according to the mass ratio of 1:3: 5; the glass fiber has an average diameter of 8 μm and an aspect ratio of 28: 1.
The preparation method of the sulfonic acid group methoxy silicon group benzotriazole group epoxy group copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 4.5 hours at 73 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain a sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer; the mass ratio of the 2-acrylamide-2-methylpropanesulfonic acid to the 3- (methacryloyloxy) propyltrimethoxysilane to the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide to the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate to the acrylic acid-2, 3-epoxypropyl ester to the initiator to the high boiling point solvent is 2.8:0.8:1.7:0.45:1:0.065: 33; the initiator is formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to the mass ratio of 3: 5; the high boiling point solvent is formed by mixing dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone according to a mass ratio of 1:2:3: 2.
The thermoplastic elastomer TPEE is formed by mixing thermoplastic elastomer TPEE with the trademark of EM550 and thermoplastic elastomer TPEE with the trademark of EM630 according to the mass ratio of 3: 5.
The preparation method of the high-strength wear-resistant plastic material is characterized by comprising the following steps: mixing the components in parts by weight, uniformly stirring to obtain a mixed material, and then adding the mixed material into a double-screw extruder for extrusion molding to obtain a high-strength wear-resistant plastic material; the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 330 r/min.
Example 5
The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 15 parts of thermoplastic elastomer TPEE, 12 parts of hyperbranched polyphenylene sulfide, 10 parts of amino-terminated hyperbranched polyimide, 8 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer, 5 parts of glass fiber, 0.6 part of phosphorus pentoxide, 0.2 part of polyphosphoric acid and 3 parts of environment-friendly plasticizer; the environment-friendly plasticizer is tributyl citrate; the average diameter of the glass fiber is 9 μm, and the length-diameter ratio is 30: 1.
The preparation method of the sulfonic acid group methoxy silicon group benzotriazole group epoxy group copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 5 hours at 75 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain a sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer; the mass ratio of the 2-acrylamide-2-methylpropanesulfonic acid to the 3- (methacryloyloxy) propyltrimethoxysilane to the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide to the 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate to the acrylic acid-2, 3-epoxypropyl ester to the initiator to the high boiling point solvent is 3:0.8:2:0.5:1:0.07: 35; the initiator is azobisisobutyronitrile; the high boiling point solvent is N-methyl pyrrolidone; the inert gas is nitrogen.
The thermoplastic elastomer TPEE is selected from thermoplastic elastomer TPEE under the designation EM 550.
The preparation method of the high-strength wear-resistant plastic material is characterized by comprising the following steps: mixing the components in parts by weight, uniformly stirring to obtain a mixed material, and then adding the mixed material into a double-screw extruder for extrusion molding to obtain a high-strength wear-resistant plastic material; the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 350 r/min.
Comparative example 1
A high strength, abrasion resistant plastic material was prepared using essentially the same process and formulation as in example 1, except that no thermoplastic elastomer TPEE was added.
Comparative example 2
A high strength, wear resistant plastic material was prepared using essentially the same method and formulation as in example 1, except that no hyperbranched polyphenylene sulfide was added.
Comparative example 3
A high strength, abrasion resistant plastic material was prepared using essentially the same procedure and formulation as in example 1, except that no amino terminated hyperbranched polyimide was added.
Comparative example 4
A high-strength abrasion-resistant plastic material was prepared by substantially the same method and formulation as in example 1, except that no sulfonic acid group methoxy silicon based benzotriazole based epoxy based copolymer was added.
The high-strength abrasion-resistant plastic material samples obtained in the above examples 1 to 5 and comparative examples 1 to 4 were tested, and the test methods and test results are shown in Table 1. Wherein, the aging resistance is measured by the retention rate of the tensile strength after each group of samples are respectively placed in hot air at 80 ℃ and manually accelerated to age for 168 hours, and the larger the value is, the better the aging resistance is. The wear resistance is characterized by the sliding friction weight loss rate, the experimental procedures are shown in GB3960-83, and the experimental result is that the sliding friction weight loss rate = (mass before wear-mass after wear)/mass before wear x 100%.
TABLE 1 high-strength abrasion-resistant plastic material Performance test results
As can be seen from Table 1, the high-strength wear-resistant plastic material disclosed in the embodiment of the invention has better mechanical property, wear resistance and aging resistance compared with the comparative example, which is the result of synergistic effect of the components; and it can be found that example 5 is the most preferable example by optimizing the ratio of the components.
The above-mentioned embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The high-strength wear-resistant plastic material is characterized by being prepared from the following components in parts by weight: 10-15 parts of thermoplastic elastomer TPEE, 8-12 parts of hyperbranched polyphenylene sulfide, 6-10 parts of amino-terminated hyperbranched polyimide, 5-8 parts of sulfonic acid group methoxy silicon-based benzotriazole-based epoxy group copolymer, 2-5 parts of glass fiber, 0.3-0.6 part of phosphorus pentoxide, 0.1-0.2 part of polyphosphoric acid and 1-3 parts of environment-friendly plasticizer.
2. The high-strength wear-resistant plastic material as claimed in claim 1, wherein the environment-friendly plasticizer is at least one of tributyl citrate, trioctyl citrate and epoxidized soybean oil.
3. The high-strength wear-resistant plastic material as claimed in claim 1, wherein the glass fiber has an average diameter of 3-9 μm and an aspect ratio of (20-30): 1.
4. The high-strength wear-resistant plastic material as claimed in claim 1, wherein the preparation method of the sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer comprises the following steps: adding 2-acrylamide-2-methylpropanesulfonic acid, 3- (methacryloyloxy) propyltrimethoxysilane, N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, 2- [3- (2H-benzotriazole-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, acrylic acid-2, 3-epoxypropyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-5 hours at 65-75 ℃ in an inert gas atmosphere, precipitating in water, washing the precipitated polymer with ethanol, and drying to obtain the sulfonic acid group methoxy silicon-based benzotriazole-based epoxy copolymer.
5. The high-strength wear-resistant plastic material as claimed in claim 4, wherein the mass ratio of the 2-acrylamido-2-methylpropanesulfonic acid, the 3- (methacryloyloxy) propyltrimethoxysilane, the N- (4-cyano-3-trifluoromethylphenyl) methacrylamide, the 2- [3- (2H-benzotriazol-2-yl) -4-hydroxyphenyl ] ethyl 2-methacrylate, the 2, 3-epoxypropyl acrylate, the initiator and the high-boiling solvent is (2-3):0.8 (1-2): 0.3-0.5):1 (0.05-0.07): 25-35).
6. The high-strength wear-resistant plastic material as claimed in claim 4, wherein the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
7. The high-strength wear-resistant plastic material as claimed in claim 4, wherein the high-boiling-point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the inert gas is any one of nitrogen, helium, neon and argon.
8. A high strength, wear resistant plastic material as claimed in claim 1, wherein said thermoplastic elastomer TPEE is selected from at least one of the thermoplastic elastomer TPEE designated as EM550 and the thermoplastic elastomer TPEE designated as EM 630.
9. The preparation method of the high-strength wear-resistant plastic material as claimed in any one of claims 1 to 8, comprising the following steps: the components are mixed according to the parts by weight, the mixture is obtained after the components are uniformly stirred, and then the mixture is added into a double-screw extruder for extrusion molding, so that the high-strength wear-resistant plastic material is obtained.
10. The method as claimed in claim 9, wherein the extrusion temperature of the extrusion molding is 300-340 ℃; the screw rotating speed of the extruder is controlled at 250-350 r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790333A (en) * | 2022-03-16 | 2022-07-26 | 宁波伏龙同步带有限公司 | High-strength cold-resistant aramid fiber synchronous belt and preparation method thereof |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790333A (en) * | 2022-03-16 | 2022-07-26 | 宁波伏龙同步带有限公司 | High-strength cold-resistant aramid fiber synchronous belt and preparation method thereof |
| CN114790333B (en) * | 2022-03-16 | 2023-10-20 | 宁波伏龙同步带有限公司 | High-strength cold-resistant aramid fiber synchronous belt and preparation method thereof |
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