CN106243480B - EVA (ethylene-vinyl acetate) type wear-resistant flame-retardant elastomer material and preparation method thereof - Google Patents
EVA (ethylene-vinyl acetate) type wear-resistant flame-retardant elastomer material and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention relates to an EVA wear-resistant flame-retardant elastomer material, which consists of 28.6 to 51.6 weight percent of ethylene-vinyl acetate copolymer, 0 to 15 weight percent of polyethylene or 0 to 15 weight percent of polypropylene, 25 to 35 weight percent of wear-resistant agent, 10 to 20 weight percent of flame retardant and 2.4 to 8.4 weight percent of other modification auxiliary agents, wherein the other modification auxiliary agents are two or more of antioxidant, compatibilizer and toughening agent. The invention has better hand feeling and comfort level, has higher commercial value in the fields of ground, wall surface, automobile interior decoration and the like, can improve the yield of materials in the forming processing process by recycling defective goods, and has simpler and more convenient preparation process and less equipment investment compared with the preparation of similar materials by rubber or PVC.
Description
Technical Field
The invention belongs to the technical field of thermoplastic elastomer material production, and particularly relates to a novel wear-resistant flame-retardant elastomer material and a preparation method thereof.
Background
The thermoplastic elastomer with the EVA material as the base material not only has high elasticity of rubber, but also has the characteristic of injection molding processing, and simultaneously has higher wear resistance and better flame retardancy under the condition of adding a wear-resistant agent, a flame retardant and other processing aids, so that the material has greater advantages in application.
Ethylene-vinyl acetate copolymer (EVA) is prepared by bulk polymerization of ethylene and vinyl acetate at a certain temperature and high pressure, and is a polymer composed of polymeric molecules with different chain lengths and chain structures. The main properties of ethylene-vinyl acetate copolymers (EVA) depend on the content of vinyl acetate in the molecular chain, and the proportion of the components can be adjusted to meet different application requirements. Compared with polyethylene, the ethylene-vinyl acetate copolymer (EVA) has the advantages that because a Vinyl Acetate (VA) monomer is introduced into a molecular chain, the branching degree of the polymer is improved, so that the crystallinity is reduced, and the flexibility, the impact resistance, the filler compatibility and the heat sealing property are improved.
However, ethylene-vinyl acetate copolymer (EVA) has a low oxygen index, is very flammable, and has the disadvantages of a high heat release rate, melt dripping, and generation of a large amount of smoke during combustion, which greatly limits its application range. Meanwhile, the ethylene-vinyl acetate copolymer (EVA) is not crosslinked, the wear resistance is poor, and the crosslinked EVA has high hardness, so that the hand feeling and the comfort degree are greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of flammability, poor wear resistance, high hardness and poor comfort in the prior art, and provides an EVA type wear-resistant and flame-retardant elastomer material and a molded product thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an EVA (ethylene-vinyl acetate) type wear-resistant and flame-retardant elastomer material is composed of the following components in percentage by mass: 28.6 to 51.6 weight percent of ethylene-vinyl acetate copolymer (EVA), 0 to 15 weight percent of Polyethylene (PE) or 0 to 15 weight Percent of Polypropylene (PP), 25 to 35 weight percent of wear-resisting agent, 10 to 20 weight percent of flame retardant and 2.4 to 8.4 weight percent of other modification auxiliary agent; wherein, the other modification auxiliary agents are two or more than two of an antioxidant, a compatibilizer and a toughening agent.
Further, the ethylene-vinyl acetate copolymer is combined with one or more ethylene-vinyl acetate copolymers of different vinyl acetate content having a Vinyl Acetate (VA) content of between 12 and 33 wt%.
Further, the ethylene-vinyl acetate copolymer has a melt index of 0.5 to 400g/10 min.
Further, the polyethylene is one or a combination of several of High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE) and Linear Low Density Polyethylene (LLDPE), and the melt index of the polyethylene is 1-8g/10 min.
Further, the polypropylene is one or two of homopolymer, random copolymer and impact copolymer, and the melt index of the polypropylene is 1-100g/10 min.
Further, the anti-wear agent is selected from one or more of Polytetrafluoroethylene (PTFE), graphite, molybdenum disulfide, talcum powder, silicon dioxide, silicon nitride, silicon modified anti-wear agent, glass fiber, carbon fiber, organic fluorine and fluorine oil (PFPE).
Further, the flame retardant is selected from one or more of Melamine Cyanurate (MCA), melamine polyphosphate type flame retardants, aluminum hypophosphite, dialkyl phosphinate type flame retardants, phenyl aluminum hypophosphite, ammonium polyphosphate (APP), metal oxide or metal hydroxide type flame retardants.
Further, the antioxidant is selected from one or more of hindered phenol antioxidant 1098, hindered phenol antioxidant 1076, hindered phenol antioxidant 1010, phosphite antioxidant 168, N' -bis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl ] hydrazine antioxidant 1024 and thioester auxiliary antioxidant DSTDP (DSTP), and the proportion of the antioxidant in the total weight is less than or equal to 0.4%.
Further, the compatibilizer is one or more selected from maleic anhydride grafted polyolefin, olefin-maleic anhydride-glycidyl methacrylate terpolymer, olefin-glycidyl methacrylate copolymer and maleic anhydride grafted ethylene-vinyl acetate copolymer, and accounts for less than or equal to 6% of the total weight.
Further, the toughening agent is selected from one or more of ethylene-acrylate-glycidyl methacrylate terpolymer, styrene-butadiene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, polyolefin elastomer material, maleic anhydride grafted polyolefin elastomer material and polyolefin elastomer material grafted glycidyl methacrylate, and the plasticizer accounts for less than or equal to 2% of the total weight.
The preparation process of EVA type wear resistant and fire retardant elastomer material includes mixing ethylene-vinyl acetate copolymer (EVA), polypropylene (PP) or Polyethylene (PE), wear resisting agent, fire retardant, modifying assistant, etc. in a high speed mixer, smelting and blending in an internal mixer or a double screw extruder to prepare wear resistant and fire retardant elastomer material and its formed product, and hot pressing, extruding, injection molding and other technological processes.
Has the advantages that:
the EVA wear-resistant flame-retardant elastomer material provided by the invention is a blend formed by ethylene-vinyl acetate copolymer, polypropylene, polyethylene, a wear-resistant agent, a flame retardant and other auxiliaries, and has the following advantages:
(1) the molecular structure characteristics of the ethylene-vinyl acetate copolymer are utilized, two or more than two modification auxiliary agents are added, the compatibility of the ethylene-vinyl acetate copolymer with polypropylene and polyethylene when the addition amount of the ethylene-vinyl acetate copolymer is high is improved, and the dispersion of auxiliary agents such as a wear-resistant agent, a flame retardant and the like in the material is improved at the same time, tests show that the material also has the characteristics of excellent wear resistance, flame retardance, tensile strength, elongation at break, oxygen index, few volatile substances, low smoke density, good chemical resistance, comfortable hand feeling, touch feeling and the like, and can better meet the use requirements of the material in different environments;
(2) compared with similar products prepared by selecting rubber or PVC materials, the ethylene-vinyl acetate copolymer is not crosslinked in the preparation process, so that the material can be processed for multiple times without affecting the performance of the material, and the performance can improve the yield of the material in the forming process by recovering defective products;
(3) the rubber or PVC composite material is prepared by a melt blending method without chemical reaction and without crosslinking agents such as DCP or crosslinking accelerators such as TAIC, is an environment-friendly material, and can be directly extruded by a double-screw extruder.
Detailed Description
The technical solution of the present invention is further described below by specific examples. The following examples are further illustrative of the present invention and are not intended to limit the scope of the present invention.
The low-density polyethylene used in the following examples is the New Yong hong material LDPE LD251, the high-density polyethylene is the Yangzhi HDPE 5000S, the polypropylene homopolymer is the New Yong hong material PPH-T30 (melt index 3g/10min), PPH-M600N (melt index 60g/10min), the polypropylene random material is the New Yong hong material PPR-M120N (melt index 12g/10min), the polypropylene copolymer material is the New Yong hong material PPC-M025 (melt index 2.5g/10min), the ethylene-vinyl acetate copolymer (EVA) is the New Yo He EVA UL00628 (melt index 6g/10min, VA content 28%), UL00218 (melt index 2g/10min, VA content 18%), UL00328 (melt index 3g/10min, VA content 28%), UL 02045 (melt index 25g/10min, VA content 28%), UL 33 (melt index 45g/10min, 33% of VA, UL15028 (melt index 150g/10min, VA content 28%), UL40028 (melt index 400g/10min, VA content 28%), UL04331 (melt index 43g/10min, VA content 31%), FL00112 (melt index 0.5g/10min, VA content 12%).
The internal mixing equipment used in the following examples was an internal mixer, the extrusion equipment was Koberron CTE-35, and the hot press molding equipment was a 50T press vulcanizer.
Example 1
EVA UL00628, LDPE LD251, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the EVA wear-resistant flame-retardant elastomer material is obtained, the EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 2
Uniformly mixing EVA UL00628, HDPE 5000S, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant according to a proportion, adding the mixture into an internal mixer at the temperature of 170 ℃, carrying out melt blending for 30 minutes to obtain the EVA type wear-resistant and flame-retardant elastomer material, carrying out die pressing on the EVA type wear-resistant and flame-retardant elastomer material to form blocks, cutting the blocks into national standard sample strips, and measuring the performances of the sample strips, wherein the test results are shown in Table 1.
Example 3
EVA UL00628, PP PPH-T30, wear-resistant agent, flame retardant, toughening agent and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 4
EVA UL00628, PP PPH-M600N, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min to obtain the EVA wear-resistant flame-retardant elastomer material, the EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 5
EVA UL00628, PPH-M120N, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min to obtain the EVA wear-resistant flame-retardant elastomer material, the EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 6
EVA UL00628, PP PPC-M025, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/M, the obtained EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 7
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 8
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 9
EVA UL00628, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a ratio, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 10
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 11
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 12
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 13
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 14
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 15
EVA UL00628, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a ratio, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 16
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 17
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 18
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 19
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 20
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Example 21
EVA UL00628, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a ratio, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 22
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 23
EVA UL00628, EVA UL00218, wear-resisting agent, fire retardant, compatibilizer and antioxidant are mixed uniformly according to proportion, then added into an internal mixer for 120 r/m at 170 ℃, melted and blended for 30 minutes, the obtained EVA type wear-resistant and flame-retardant elastomer material is die-pressed into blocks, then cut into national standard sample strips, and the performance of the material is measured, and the test results are shown in Table 1.
Example 24
EVA UL00628, EVA UL04533, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for 120 r/m at 170 ℃, melted and blended for 30 minutes, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, and the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 25
EVA UL00628, EVA UL04331, wear-resistant agent, flame retardant, compatibilizer, toughening agent and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA type wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA type wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 26
EVA UL00628, EVA FL00112, wear-resisting agent, flame retardant, compatibilizer, toughening agent and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA type wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA type wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 27
EVA UL00628, EVA UL02528, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃, 120 revolutions per minute, the obtained EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 28
EVA UL00628, EVA UL15028, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for 120 r/min at 170 ℃, melted and blended for 30 minutes, the obtained EVA type wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, and the performance of the EVA type wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 29
EVA UL00628, EVA UL00328, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for 120 r/min at 170 ℃, melted and blended for 30 minutes, the obtained EVA type wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, and the performance of the material is measured, and the test results are shown in Table 1.
Example 30
EVA UL00628, EVA UL40028, wear-resistant agent, flame retardant, compatibilizer and antioxidant are mixed uniformly according to a proportion, then added into an internal mixer for 120 r/min at 170 ℃, melted and blended for 30 minutes, the obtained EVA type wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, and the performance of the EVA type wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 31
EVA UL00628, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a ratio, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 32
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 33
EVA UL00628, a wear-resistant agent, a flame retardant, a toughening agent and an antioxidant are uniformly mixed according to a ratio, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ and 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 34
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a ratio, then are added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ to obtain the EVA wear-resistant and flame-retardant elastomer material, the EVA wear-resistant and flame-retardant elastomer material is molded into blocks and then is cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Example 35
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer and an antioxidant are uniformly mixed according to a proportion and then are added into a double-screw extruder to be extruded, the prepared EVA wear-resistant flame-retardant elastomer material is molded into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant flame-retardant elastomer material is measured, and the test results are shown in Table 1.
Comparative example 1
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Comparative example 2
EVA UL00628, a wear-resistant agent, a flame retardant, a compatibilizer, a toughening agent and an antioxidant are uniformly mixed according to a proportion, then the mixture is added into an internal mixer for melting and blending for 30 minutes at the temperature of 170 ℃ at 120 r/min, the obtained EVA wear-resistant and flame-retardant elastomer material is die-pressed into blocks and then cut into national standard sample strips, the performance of the EVA wear-resistant and flame-retardant elastomer material is measured, and the test result is shown in Table 1.
Through comparison of data of examples and comparative examples in table 1, it can be found that by selecting different contents of main raw materials of EVA, PP, PE, wear-resistant agent, flame retardant, compatibilizer, and toughening agent, the mechanical properties of the material can be improved to a great extent. In addition, the material performance can be adjusted through related proportion, so that the material with various composite requirements can be prepared.
TABLE 1 raw material addition ratio and composition Performance test results
As can be seen from examples 1-35 and comparative examples 1 and 2 in Table 1, the two or more modification aids enable the wear-resistant agent, the flame retardant and the like to be uniformly dispersed in EVA during melt blending, and the mechanical properties of the material can be greatly improved under optimized conditions, so that the wear-resistant flame-retardant elastomer material applicable to molded and extruded products can be obtained.
According to the wear-resistant flame-retardant elastomer material prepared by blending the ethylene-vinyl acetate copolymer (EVA) serving as the base material and the preparation method thereof, on the basis of ensuring excellent mechanical properties, the application field of the EVA is widened, the price is lower than that of rubber, EPDM and other materials, meanwhile, the material processing is more convenient and faster than that of rubber, the material is more environment-friendly and healthy without crosslinking treatment, and the wear-resistant flame-retardant elastomer material has good application prospect and economic benefit.
The wear-resistant and flame-retardant elastomer material prepared by blending the ethylene-vinyl acetate copolymer (EVA) serving as the base material can be processed into a molded product, and the molded product can be realized by processes such as hot press molding, extrusion molding, injection molding and the like.
The above embodiments of the present invention are merely exemplary, and the present invention is not limited thereto. Those skilled in the art will understand that: changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (2)
1. An EVA type abrasion-resistant flame-retardant elastomer material is characterized in that: the material is selected from the following components in parts:
2. the method for preparing the EVA abrasion-resistant flame-retardant elastomer material of claim 1, wherein: the components are uniformly mixed by a high-speed mixer, and then are melted and blended by an internal mixer or a double-screw extruder to prepare the wear-resistant and flame-retardant elastomer material and a molded product thereof, wherein the molded product is prepared by hot-press molding, extrusion molding or injection molding.
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| CN109161120B (en) * | 2018-07-02 | 2021-02-02 | 广东威立瑞科技有限公司 | Anti-aging material, preparation method and application in preparation of cable protection pipe |
| CN109456527A (en) * | 2018-11-13 | 2019-03-12 | 苏州亨利通信材料有限公司 | A kind of fire-retardant PE cable jacket material of low friction and preparation method thereof |
| CN110540707B (en) * | 2019-09-14 | 2021-12-31 | 福建师范大学 | Multi-element flame-retardant polypropylene material and preparation method thereof |
| CN111944228B (en) * | 2020-08-18 | 2022-12-09 | 温州金鸿远鞋业有限公司 | Wear-resistant sole and preparation process thereof |
| CN113337031B (en) * | 2021-06-17 | 2023-05-05 | 江苏斯尔邦石化有限公司 | Preparation method of EVA special material |
| CN114685885B (en) * | 2022-05-06 | 2023-11-24 | 北京中景橙石科技股份有限公司 | Elastic expansion joint plate and preparation method thereof |
| CN116003901A (en) * | 2022-12-17 | 2023-04-25 | 重庆泛锐科技有限公司 | Wear-resistant anti-skid EVA composite material and preparation method thereof |
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