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Radiation crosslinking presulfiding method for preparing foamed rubber floor

A radiation cross-linking and foaming rubber technology, which is applied in the field of rubber products, can solve problems such as limited room for vulcanization speed improvement, low diene content, difficulties, etc., achieve excellent sound absorption and sound insulation performance, improve foaming stability, and reduce collision damage Effect

Inactive Publication Date: 2018-05-04
ANHUI HONGSHI OPTOELECTRONICS HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low diene content of EPDM, the room for increasing the vulcanization rate is limited, so it is difficult to match the vulcanization rate and foaming rate simply by adjusting the formula

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A method of radiation crosslinking pre-vulcanization to prepare foamed rubber flooring, using gamma rays as the radiation source, realizing pre-vulcanization of EPDM rubber through radiation cross-linking, combined with traditional molded foaming, and undergoing secondary vulcanization After processing, the foamed rubber flooring material is obtained.

[0016] The specific process steps are as follows:

[0017] (1) Mixing: Mix 100 parts of EPDM rubber with 22 parts of reinforcing filler, 1 part of stearic acid, 2 parts of anti-aging agent, 3 parts of sulfur, 4 parts of silane coupling agent, 8 parts of foaming agent, anti-aging agent 0.8 parts of oxygen agent and 7 parts of flame retardant were mixed and put into the internal mixer for banburying. The banburying temperature was 130°C, the banburying time was 20 minutes, and then mixed on the open double-roller plastic mixer for 15 minutes. The front roller temperature 80°C, the temperature of the back roll is 70°C, the...

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PUM

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Abstract

The invention discloses a radiation crosslinking presulfiding method for preparing a foamed rubber floor. The method comprises the steps of adopting gamma-ray as a radiation source, realizing pre-vulcanization of ethylene propylene diene monomer through radiation cross-linking, combining with conventional mold foaming, after secondary vulcanization treatment, and obtaining a foamed rubber flooringmaterial. The radiation crosslinking presulfiding method for preparing the foamed rubber floor mixes and blends polyfunctional monomer trimethylolpropane trimethacrylate in ethylene propylene diene monomer copolymer to promote cross-linking reaction of the ethylene propylene diene monomer, realizes the pre-vulcanization of a rubber material through radiation crosslinking, achieves the matching ofvulcanization speed and foaming speed of the ethylene propylene diene monomer foamed material, and improves foaming stability; a product of the invention has excellent elasticity, greatly improves comfort of foot feeling, and reduces collision damage, and has a wide range of adaptability.

Description

technical field [0001] The invention relates to the field of rubber products, in particular to a method for preparing foamed rubber floors through radiation crosslinking and pre-vulcanization. Background technique [0002] The molding methods of rubber foam materials usually include molded foaming method and free foaming method. These two methods have different requirements for the formulation of rubber materials. The foam molding process of rubber includes two simultaneous reactions, namely, the vulcanization reaction of rubber and the decomposition reaction of foaming agent. The vulcanization reaction changes the rubber from thermoplastic to thermosetting, which increases the strength and modulus of the cell wall. The decomposition reaction of the blowing agent produces gas, which forms cells and pushes the cells to grow, making the rubber foam. Accurately controlling the speed and starting point of these two reactions is the key technology for the successful preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08K13/02C08K3/36C08K3/26C08K3/22C08K5/09C08J3/28C08J3/24C08J9/04
Inventor 徐道际张建波张成文邓书醒肖杰
Owner ANHUI HONGSHI OPTOELECTRONICS HIGH TECH CO LTD