Novel tire airtight liner promoter and preparation method and application thereof

Abstract

The invention relates to a preparation method of novel tire airtight liner promoter and an application of the novel tire airtight liner promoter. The airtight liner promoter comprises, by weight, 20-50% of uniform resin, 10-20% of lubrication dispersant, 20-40% of inorganic air barrier material and 20-40% of tackifying resin. By the use of the airtight liner promoter, compatibility of rubbers of different polarities is improved, adhesive force of airtight liner size and tire size is enhanced, and therefore airtight performance of the tire and driving safety performance are prompted. As shown in application tests, the tire with the airtight liner promoter is prior to like products on sale in the aspects of service life, pressure maintaining performance and driving safety. The airtight liner promoter is imparted plastification, tackifying and vulcanizing active effects, high in compatibility with the rubber, effective in wetting various rubbers used simultaneously and reducing surface tension of the rubbers, high in dispersion speed and uniformity of carbon black, the inorganic air barrier material and the like in the rubbers and good in reinforcing effect.

Description

technical field [0001] The invention relates to a novel tire inner liner promoter and its preparation method and application, belonging to the technical field of fine chemicals. Background technique [0002] Modern tires, especially radial tires, are basically tubeless. Tubeless tires act on the airtight layer to improve the airtightness of the tire and prolong the service life of the tire. It is a relatively expensive part of the tire. Bromobutyl rubber or chlorinated butyl rubber is used in the production of inner liner parts. Since halogenated butyl rubber is more expensive, in order to reduce costs, it is also used in combination with natural rubber, styrene-butadiene rubber or reclaimed rubber. The compatibility of halogenated butyl rubber and natural rubber is relatively poor due to polarity problems, and there are also problems with the viscosity of halogenated butyl rubber inner liner rubber and carcass rubber. If it is not improved, it will lead to air tightness and...

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the permeability of the inner liner of the tire, some inner liner enhancers have been introduced on the market, such as the use of bisisopropyl oxide laminated carbon body and hydrocarbon resin, and under certain conditions, environmental softeners and active The SD1517 made of additives, etc., is only suitable for halogenated butyl rubber, and the range of rubber types is narrow and the price is relatively expensive; there are also sing

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