Preparation method of industrial active polyester fiber

Abstract

The invention relates to preparation of polyester fibers, and aims at providing a preparation method of an industrial active polyester fiber. In the preparation method, in a polyester fiber spinning stretching process, active adhesive is sprayed to the surface of a heat-state polyester fiber filament, and is heated at a temperature of between 150 and 170 DEG C to obtain an industrial active polyester fiber product, wherein the active adhesive is a uniform and stable mixed solution formed by dissolving epoxy compound and blocked polyisocyanate in polyoxyether. According to the preparation method, an active film is formed on the surface of the reacted polyester fiber, good adhesive function is endowed to the fiber, so that the fiber is easier to bind with RFL (resorcineformaldehyde-latex), and the adhesive force of the polyester fiber and rubber is increased; the production process is simplified, only once impregnation is required, and post-processing cost is reduced; and large reformation to a conventional system is not required, only the active adhesive is required to be sprayed to the surface of the heat-state polyester fiber filament to obtain the active polyester fiber product.The active polyester fiber has the characteristics of polyester fibers and the good adhesive property of rubber.

Description

technical field [0001] The present invention relates to a kind of preparation of polyester fiber, especially a kind of preparation method of industrial reactive polyester fiber which is more suitable for bonding with rubber. Background technique [0002] In order to increase the strength of rubber products and limit their deformation, most rubber products such as pneumatic tires, rubber hoses, rubber dams, tapes, rubber shoes, and adhesive tape must use textile materials or metal materials as skeletons. The performance requirements of rubber products for skeleton materials are high strength, appropriate elongation, good dimensional stability, good flex fatigue resistance and heat resistance, low moisture absorption, good adhesion to rubber, corrosion resistance and Good flame resistance, low price and low relative density, which is beneficial to light weight and so on. [0003] Rubber skeleton materials mainly include steel wire, nylon, polyester, high-strength rayon and va...

AI Technical Summary

Problems solved by technology

However, due to the high crystallinity and good stability of polyester fiber, the adhesion effect with rubber is not good. Generally, it needs to be dipped in two baths. The process is complicated and the post-processing cost is high.

[0005] In order to solve this problem, the main energy of domestic and foreign research is concentrated on spinning oil, including companies such as Sima of Germany and Matsumoto of Japan, all of which add ingredients that bond with rubber to the oil formulation, so that the dipping effect will be improved. , but still cannot fundamentally solve the problem of two-bath dipping, and problems such as smoke and coking will also occur during the spinning process

Until the beginning of this century, Sima Chemicals produced an activated silk oil agent, which improved the problem of dipping, but its use conditions were harsh and the price was expensive

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