During the production process of inner and outer tires, many rubber products manufacturers choose to add a large amount of reclaimed rubber in the formula, especially the curtain rubber of the tire tire. Natural rubber + butadiene rubber + reclaimed rubber (large amount) is the rubber layer of the tire car tire. The main production method; compared with natural rubber, butadiene rubber, the price of reclaimed rubber is low, which can significantly reduce the cost of raw materials; but in actual production, the meaning of adding a large amount of reclaimed rubber in the formula of the rubber curtain layer is not only the case. . So what is the significance of using a high proportion of recycled rubber in the rubber layer of the car curtain, and what are the skills?
1. The significance of high proportion of rubber tire curtain cloth blended with reclaimed rubber
Recycled rubber is processed from waste rubber and waste rubber products. The tire reclaimed rubber is processed by magnetic separation, desulfurization, filtration, refining, molding and other complicated processes. It has good plasticity, good fluidity and easy to be used. The raw rubber and the compounding agent are mixed, the vulcanization speed is fast, and the scorch resistance is good; the high proportion of the tire reclaimed rubber in the tire carousel can theoretically improve the process requirements of the curtain rubber rolling process; the test result table name, with the tire reclaimed rubber The rubber compound has fast powder consumption, low energy consumption, low glue discharge temperature, easy rolling control, and good adhesion of the produced tire carcass.
From the perspective of the performance of the curtain rubber, the high proportion of recycled rubber can reduce the amount of glue and reduce the negative impact of excessive adhesion of the car tire ply; the car tire itself has excellent wear resistance, and the waste tire is processed. The tire reclaimed rubber is used in the tire car tire rubber to improve the wear resistance of the curtain rubber to a certain extent, and also to improve the tear strength and flex resistance of the curtain rubber.
2, the strength of the car tire cord cloth with a high proportion of blended with reclaimed rubber tips
From the choice of raw materials, the tread reclaimed rubber in the tire reclaimed rubber has higher hydrocarbon content. The high proportion of the rubber in the car curtain rubber has little effect on the performance of the curtain rubber. If the cost permits, it is better to choose the high-fineness tire. Tread reclaimed rubber, and choose to cooperate with a regular reclaimed rubber factory of a certain scale to ensure the quality stability of tire reclaimed rubber.
From the point of view of process performance, the tire reclaimed rubber itself contains a certain amount of softener. If a high proportion is used in the rubber tire cord, if it is easy to appear sticky roller or early aging according to the original formula, it is necessary to adjust the softening system properly; The curtain rubber is parked for a period of time, and the tire reclaimed rubber is refined before the mixing, and the plasticity value of the rubber is controlled to ensure uniformity of the rubber compound, avoiding the occurrence of sticking rolls and early aging problems.