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EPDM rubber particle and preparation method thereof

A technology of rubber granules and EPDM rubber, which is applied in the field of EPDM rubber granules and its preparation, can solve the problems of insufficient tensile strength, wear resistance and elastic properties, insufficient aging resistance, and labor and material resources. Achieve the effects of improving uniformity, increasing the probability of collision, and improving athletic ability

Pending Publication Date: 2020-10-27
湖北晟弘新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing EPDM (ethylene-propylene-diene rubber) particles are generally prepared from ethylene-propylene-diene rubber, and its tensile strength, abrasion resistance and elastic properties are not excellent enough, and the existing ethylene-propylene-diene rubber particles The anti-aging performance is not high enough, and the service life is short. The plastic runway needs to be scooped up and re-paved after 2-3 years of use. The paving cost is high and consumes a lot of manpower and material resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention provides a kind of preparation method of EPDM rubber particle, comprises the steps:

[0026] Step S1: Material mixing: 100 parts of EPDM rubber, 10 parts of polypropylene, 1 part of toughening agent monoethanolamine thioglycolate, 2 parts of polybutylene terephthalate, 2 parts of squalene, filler 40 parts of calcium carbonate, 1 part of vulcanizing agent sulfur, 5 parts of reinforcing agent carbon black, and 1 part of colorant rubber scarlet are mixed evenly, put into a banbury mixer and banbury to obtain banbury raw rubber;

[0027] Step S2: vulcanization and cross-linking: put the raw rubber after banbury mixing into the open mill and roll it into a sheet-shaped raw rubber, and then place the sheet-shaped raw rubber in a vulcanizer at a temperature of 140°C for 1 hour;

[0028] Step S3: granulation: cutting the vulcanized mature rubber into dumbbell-shaped sheet-shaped mature rubber and then granulating to obtain EPDM rubber granules.

Embodiment 2

[0030] The invention provides a kind of preparation method of EPDM rubber particle, comprises the steps:

[0031] Step S1: Material mixing: 100 parts of EPDM rubber, 20 parts of polypropylene, 5 parts of toughening agent monoethanolamine thioglycolate, 5 parts of polybutylene terephthalate, 5 parts of squalene, filler 60 parts of white carbon black, 5 parts of vulcanizing agent sulfur, 10 parts of reinforcing agent graphene, and 5 parts of coloring agent permanent yellow are mixed evenly, put into a banbury mixer and banbury to obtain banbury raw rubber;

[0032] Step S2: vulcanization and cross-linking: put the raw rubber after banbury mixing into the open mill and roll it into a sheet-shaped raw rubber, and then place the sheet-shaped raw rubber in a vulcanizer at a temperature of 150°C for 2 hours;

[0033] Step S3: granulation: cutting the vulcanized mature rubber into dumbbell-shaped sheet-shaped mature rubber and then granulating to obtain EPDM rubber granules.

Embodiment 3

[0035] The invention provides a kind of preparation method of EPDM rubber particle, comprises the steps:

[0036] Step S1: Material mixing: 100 parts of EPDM rubber, 25 parts of polypropylene, 3 parts of toughening agent monoethanolamine thioglycolate, 4 parts of polybutylene terephthalate, 4 parts of squalene, filler 50 parts of zinc oxide, 3 parts of vulcanizing agent sulfur, 8 parts of reinforcing agent silicon dioxide, and 4 parts of coloring agent phthalocyanine green are mixed evenly, and put into a banbury mixer for banburying to obtain banbury raw rubber;

[0037] Step S2: vulcanization and cross-linking: put the raw rubber after banbury mixing into the open mill and roll it into a sheet-shaped raw rubber, and then place the sheet-shaped raw rubber in a vulcanizer at a temperature of 145°C for 1.5 hours;

[0038] Step S3: granulation: cutting the vulcanized mature rubber into dumbbell-shaped sheet-shaped mature rubber and then granulating to obtain EPDM rubber granules...

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PUM

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Abstract

The invention provides an EPDM rubber particle, which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer rubber, 10-20 parts of polypropylene, 5-15 parts of a flexibilizer, 40-60 parts of a filler, 1-5 parts of a vulcanizing agent and 5-10 parts of a reinforcing agent. The flexibilizer comprises the following components in parts by weight: 1-5 parts of (2-hydroxyethyl) ammonium mercaptoacetate and 2-5 parts of polybutylene terephthalate. The invention further provides a preparation method of the EPDM rubber particles, and the preparation method comprises the following steps of: step S1, mixing materials; S2, vulcanizing and cross-linking; and S3, granulating. The invention provides EPDM rubber particles with high tensile strength,high wear resistance and good elasticity and a preparation method thereof.

Description

technical field [0001] The invention relates to the technical field of plastic runway filling particles, in particular to EPDM rubber particles and a preparation method thereof. Background technique [0002] The plastic track is also called the all-weather track and field track. It is composed of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or PU particles, pigments, additives, and fillers. The plastic runway is composed of polyurethane, EPDM rubber and other materials. It has certain elasticity and color, and has certain anti-ultraviolet ability and aging resistance. It is internationally recognized as the best all-weather outdoor sports floor material. [0003] Existing EPDM (ethylene-propylene-diene rubber) particles are generally prepared from ethylene-propylene-diene rubber, and its tensile strength, abrasion resistance and elastic properties are not excellent enough, and the existing ethylene-propylene-diene rubber particles The a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/12C08L67/02C08K13/02C08K5/01C08K3/26C08K3/06C08K3/04C08K5/37C08K13/04C08K7/26C08K3/22C08K3/36
CPCC08L23/16C08L2205/03C08K2003/265C08L2201/08C08L2205/02C08K2003/2296C08L23/12C08L67/02C08K13/02C08K5/01C08K3/26C08K3/06C08K3/04C08K5/37C08K13/04C08K7/26C08K3/042C08K3/22C08K3/36
Inventor 冷新兰
Owner 湖北晟弘新材料有限公司
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