Processing method of high-temperature-resistant EPDM rubber tube

By using a method to prepare high-temperature resistant EPDM hoses, a three-dimensional network structure is formed through a peroxide vulcanization system and specific additives, solving the problem of easy cracking in existing high-temperature resistant automotive hoses and improving high-temperature resistance and mechanical properties.

CN122344375APending Publication Date: 2026-07-07SHIYAN SENXIN AUTOMOTIVE COMPONENTS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHIYAN SENXIN AUTOMOTIVE COMPONENTS CO LTD
Filing Date
2026-04-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing automotive high-temperature resistant hoses are prone to cracking or breaking during use, and their high-temperature resistance and mechanical properties are insufficient.

Method used

High-temperature resistant EPDM hoses are prepared by using a peroxide vulcanization system, combined with plasticizers, stearic acid, zinc oxide, magnesium oxide, carbon black, silica, softening oil, antioxidants, and crosslinking aids, through processes such as mixing, open milling, thin-passing, and sizing, forming a three-dimensional network structure to improve heat resistance and mechanical strength.

Benefits of technology

It significantly improves the high temperature resistance, weather resistance and tensile strength of the hose, extends its service life, and enhances the hose's wear resistance and scratch resistance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122344375A_ABST
    Figure CN122344375A_ABST
Patent Text Reader

Abstract

The application discloses a processing method of a high-temperature-resistant EPDM rubber pipe, and comprises the following steps: S1: taking EPDM 100-200 parts, plasticizer 1-3 parts, stearic acid 0.5-1 part, zinc oxide 4-5 parts, magnesium oxide 4-10 parts, carbon black 80-120 parts, white carbon black 10-20 parts, softening oil 25-60 parts, anti-aging agent 1-3 parts, peroxide 1-5 parts and auxiliary cross-linking agent 4-8 parts; the peroxide vulcanization system is adopted, and the plasticizer, stearic acid, zinc oxide, magnesium oxide, carbon black, white carbon black, softening oil, anti-aging agent, peroxide and auxiliary cross-linking agent and other components are added, so that the obtained rubber pipe has good high-temperature resistance, weather resistance and tensile resistance, and the service life of the rubber pipe used in an automobile can be significantly prolonged.
Need to check novelty before this filing date? Find Prior Art