Ethylene-propylene-diene monomer mould pressing abnormal shape sponge sheath rubber composition

A technology of EPDM rubber and rubber composition is applied in the field of EPDM molded special-shaped sponge sheath, which can solve the problems of difficult control of dimensional stability, and achieve the effects of dimensional stability, good elasticity and good heat resistance.

Inactive Publication Date: 2013-02-27
TIANJIN PENGYI GRP CO LTD
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to control the dimensional stability of special-shaped rubber sponge sheaths made of EPDM rubber. Special formula and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ethylene-propylene-diene monomer mould pressing abnormal shape sponge sheath rubber composition
  • Ethylene-propylene-diene monomer mould pressing abnormal shape sponge sheath rubber composition
  • Ethylene-propylene-diene monomer mould pressing abnormal shape sponge sheath rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] (blending unit: parts by weight)

[0023] components Example 1 Example 2 Example 3

[0024] dithiuram tetrasulfide 0.3 0.4 0.5

[0025] As can be seen from the foregoing examples, select EPDM rubber, dibenzothiazole disulfide, zinc dibutyl dithiocarbamate, tetramethylthiuram disulfide, dithiuram tetrasulfide, four kinds The combination of vulcanization accelerator, azodicarbonamide and diphenylsulfonylhydrazide ether two foaming agents and other related ingredients can prepare special-shaped sponges with excellent heat aging resistance, low density, stable size, and smooth and delicate surface. jacket.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an ethylene-propylene-diene monomer (EPDM) mould pressing abnormal shape sponge sheath rubber composition. The composition includes the components by weight: 100 parts of EPDM rubber, 60-80 parts of semi-reinforcing carbon black, 30-50 parts of paraffin oil, 3-5 parts of zinc oxide, 2-4 parts of stearic acid, 1-3 parts of polyethylene glycol, 0.3-0.5 parts of dibenzothiazole disulfide, 1.3-1.5 parts of zinc dibutyldithiocarbamate, 0.5-0.8 parts of tetramethylthiuram disulfide, 0.3-0.5 parts of dithiuram tetrasulfide, 6.5-7.5 parts of azodicarbonamide, 2.5-3.5 parts of 4,4'-oxybis(benzenesulfonyl hydrazide), and 0.8-1.2 parts of sulfur. The EPDM rubber is used in the invention. By adjusting the ratio of various components in the recipe and process conditions, the abnormal shape sponge sheath with excellent heat aging resistance, small density, stable dimension and smooth and exquisite surface can be prepared.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to an EPDM molded special-shaped sponge sheath. Background technique [0002] As we all know, sponge rubber is a porous high-elastic material. It has light weight, excellent cushioning, compression, sealing and heat and sound insulation properties. It can be used as a cushioning, liner, heat insulation, sound insulation and shock absorption material. , It is widely used in various fields such as home appliances, automobiles, construction and housing. Especially in recent years, with the rapid development of the automobile industry, the working temperature in the engine compartment of the automobile has become higher and higher. It is not only required that the rubber hoses of the matching systems have good high temperature resistance, and at the same time, they must not rub against each other. This requires that the rubber sponge sheath matching the shape of the rubber hose be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L23/16C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08J9/10C08J3/24
Inventor 张洪起王学荣
Owner TIANJIN PENGYI GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap