A kind of f-12 fiber sizing and softening method and sizing and softening device

Abstract

The invention relates to a starching and softening method and device for a high-strength and high-modulus F-12 fiber. The starching and softening method comprises the following steps: starching; surface treatment; softening treatment; and drying. In the starching process, the F-12 fiber is conveyed to a starching tank of the starching and softening device, and a fatty acid ester starching agent with the preparation concentration of 0.2%-2% in the tank coats the surface of the F-12 fiber or immerses the F-12 fiber at the temperature of 20-40 DEG C; in the softening treatment process, the F-12 fiber is softened in the process of passing through the starching tank in a folding line way. The starching and softening device is composed of a fixed softening roller 1, a movable softening roller 2, a silk guide roller 3, an ultrasonic generator 4, a circulating pump 5, a heater 6 and a tank body 8. By virtue of the starching and softening method and device, the defects of large surface inertia and poor surface infiltration of the F-12 fiber are overcome, the surface performance of the fiber is improved, the performance reduction of a fiber product is prevented, the binding performance of the fiber and a resin matrix is improved, and the performance of a fiber reinforced resin composite is improved.

Description

technical field [0001] The invention relates to a sizing and softening method and a sizing and softening device for high-strength and high-modulus F-12 fibers. Background technique [0002] Aramid fibers, carbon fibers, and ultra-high molecular weight polyethylene fibers have become three high-performance fibers, which are widely used in various fields. F-12 fiber belongs to heterocyclic aramid fiber, which is formed by polycondensation at low temperature after introducing a third monomer into the structure on the basis of para-aramid fiber. Therefore, the fiber performance is obviously better than that of para-aramid fiber and can be widely used It is used in weaponry and high-end civilian market. Especially for the preparation of new composite materials, it has broad application prospects. [0003] Similar to other high-performance fibers, the surface of F-12 fiber is chemically inert, and the interface bonding performance with the matrix resin is average, which affects ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a kind of F-12 fiber sizing and softening method, to overcome the shortcomings of F-12 fiber surface inertia and poor surface infiltration, improve fiber surface performance, avoid fiber product performance decline, improve fiber and The bonding performance of the resin matrix improves the performance of fiber-reinforced resin composites; at the same time, it provides F-12 fiber sizing softening device to solve the problem of F-12 fiber sizing softening

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