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A kind of rubber composition and application

A technology of rubber composition and styrene-butadiene rubber, applied in building structures, building components, building insulation materials, etc., can solve the problems of poor processing safety, poor flexural fatigue resistance, poor processing stability, etc., and achieve long-term service performance. Stable, good physical and mechanical properties, high cross-linking vulcanization efficiency

Active Publication Date: 2018-02-02
NANJING SIKAI RUBBER & PLASTIC PROD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is poor flex fatigue resistance and prone to blooming
Although the effective vulcanization system formula with high TMTD is widely used, it has poor processing stability and serious frosting
(3) Dynamic equilibrium vulcanization system, usually a vulcanization system with anti-vulcanization reduction performance, the dynamic performance is better than that of effective and semi-effective vulcanization system, but it cannot reach the dynamic performance of conventional vulcanization system
[0021] In the manufacture of heavy and thick products that require fatigue resistance, such as tires and track plates, a compounding system with sulfur is usually required. Although the compounding system with sulfur has good fatigue resistance and tear resistance, it has poor heat and aging resistance and poor processing safety. The anti-scorch agent CTP and p-phenylenediamine anti-aging agent in the formula are almost standard, and these materials are harmful or suspected harmful substances

Method used

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  • A kind of rubber composition and application
  • A kind of rubber composition and application
  • A kind of rubber composition and application

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Embodiment Construction

[0092] General application of the present invention: butadiene rubber, natural rubber and styrene-butadiene rubber account for more than 70-85% of the rubber (raw rubber) weight, 100% is certainly more possible, and other ingredients are generally polymer materials containing ethylenic bonds; other ingredients Such as a small amount of binary or EPDM rubber, polypropylene, maleic anhydride binary or EPDM rubber (EPDM is a copolymer of ethylene, propylene or / and a small amount of non-conjugated diene, or other olefin low Polymer), does not exclude the use of other recycled rubber, secondary rubber powder (which can also be included in the filler system), etc.

[0093] The peroxide initiator is (1) di-tert-butyl peroxide, benzoyl peroxide, lauroyl peroxide; (2) hydroperoxide (cumene hydroperoxide, tert-butyl hydroperoxide); (3) Dialkyl peroxide (di-tert-butyl peroxide, dicumyl peroxide); (4) tert-butyl peroxybenzoate, tert-butyl peroxy-tert-valerate; (5) peroxide Oxidized methy...

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PUM

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Abstract

A rubber composition, comprising: 80-120 parts by weight of a raw rubber; 1-5 parts by weight of a peroxide initiator; 2-15 parts by weight of a crossbridging agent; 0.1-1 parts by weight of a free radical-absorbing and releasing modulator; and a strengthening and anti-aging agent. At least 70% by weight of the raw rubber comprises any one or any combination of a polybutadiene rubber, natural rubber, and styrene-butadiene rubber. The invention provides a formulation of a crossbridging and auxiliary agent for an unfinished good of the rubber composition, and offers a technical solution with excellent performance and industrial applicability in representative industries including tires, footwear materials, and wear plates. The invention is also cost effective and friendly to the environment.

Description

1. Technical field [0001] The invention relates to a rubber composition, that is, a crosslinking formulation of a rubber product, as well as a preparation method and application. 2. Background technology [0002] Butadiene rubber (China's output has a million tons) and natural rubber and styrene-butadiene rubber are general-purpose rubber. The products mainly cover tires, shoe soles, plates and pipes. They are the largest products in rubber. The vulcanization process has been developed for many years and Mature history; vulcanizing agent is called bridging agent. .In the industry, it is also called bridging agent according to the explanation of HG / T3060-1988 (1997) "Non-carbon black compounding agent term for rubber": vulcanizing agent; curing agent--a substance that can vulcanize (crosslink) rubber. Divided into inorganic and organic categories. The former category includes sulfur, sulfur monochloride, selenium, tellurium and so on. The latter category includes sulfur-co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08L7/00C08L9/06C08L91/06C08L21/00C08L23/16C08L95/00C08L23/12C08L23/06C08K13/02C08K3/36C08K5/3445C08K5/098C08K5/14
CPCC08K3/36C08K5/098C08K5/14C08K5/3445C08K13/02C08L7/00C08L9/00C08L9/06C08L2201/02C08L2205/025C08L2205/03C08L2205/035C08L91/06C08L21/00C08L23/16C08L95/00C08L23/12C08L23/06
Inventor 盛钧
Owner NANJING SIKAI RUBBER & PLASTIC PROD CO LTD
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