Preparation method of high-temperature-resistant polyethylene fiber and rubber composite

Abstract

The invention discloses a preparation method of high-temperature-resistant polyethylene fiber and rubber composite and belongs to the field of composite. A polyethylene fiber semi-dilute solution is prepared from ultra-high molecular weight polyethylene fiber and put in a plasma generating device for surface modification, a modified polyethylene fiber semi-dilute solution is prepared and mixed with silica sol prepared from ethyl silicate, absolute ethyl alcohol and the like, a polyethylene fiber and silica mixed solution is obtained, natural rubber is taken, zinc oxide and stearic acid are added, the mixture is cut by a cutter, the polyethylene fiber and silica mixed solution, an accelerator and the like are added, the mixture is mixed, dried and smashed, and the high-temperature-resistant polyethylene fiber and rubber composite is obtained. The characteristics of high rubber flexibility, high elasticity and higher fiber rigidity are used, characteristics of polyethylene fiber and rubber are effectively combined, the performance of the composite is superior to that of a conventional rubber product, and the composite is resistant to high temperature and has good stretching performance and compression resistance.

Description

technical field [0001] The invention discloses a preparation method of a high-temperature-resistant polyethylene fiber rubber composite material, which belongs to the field of composite materials. Background technique [0002] Ultra-high molecular weight polyethylene fiber is a high-performance fiber developed since the 1980s. It is a representative product of gel spinning technology using gel spinning super stretching technology in industrial production. The traditional cross-linking methods are radiation cross-linking and thermochemical cross-linking, but these two cross-linking methods will damage the mechanical properties of the fiber. High-energy radiation will break the molecular chain of the fiber, and the fiber strength will decrease with the increase of the radiation dose. . Thermochemical crosslinking is to generate crosslinking through the thermal decomposition of the initiator at high temperature, which will cause the highly oriented macromolecular chains to rel...

AI Technical Summary

Problems solved by technology

[0005] The technical problems mainly solved by the present invention are as follows: polyethylene fibers are not resistant to high temperature, surface processing is difficult, difficult to dye, difficult to bond with other materials, poor creep resistance, poor tensile and compression resistance of general rubber, and in Under wet conditions, the tear performance and puncture resistance of rubber are poor. A preparation method for high temperature resistant polyethylene fiber rubber composite material is provided. The invention uses ultra-high molecular weight polyethylene fiber to prepare polyethylene fiber semi-diluted solution, put it into a plasma generating device for surface modification to obtain a semi-dilute solution of modified polyethylene fiber, mix it with silica sol prepared from ethyl silicate and absolute ethanol, etc., to obtain polyethylene fiber dioxide Silicon mixed solution, take natural rubber, add zinc oxide and stearic acid cutter, pour polyethylene fiber silicon dioxide mixed solution, add accelerator, etc., knead, dry and crush to obtain a high temperature resistant polyethylene fiber Rubber composite material, the invention utilizes the characteristics of high flexibility, high elasticity and relatively strong fiber rigidity of rubber to effectively combine the characteristics of the two. The performance of the composite material is better than that of traditional rubber products, not only high temperature resistance, but also tensile strength. Good tensile and compression resistance