The weather is getting colder and the tire reclaimed rubber in the sample room is harder than before. Many old customers will ask: Is it not harder to reclaim the reclaimed rubber? After listening to our sales staff patiently explained: In fact, not just tire reclaimed rubber, latex reclaimed rubber, nitrile rubber reclaimed, butyl reclaimed rubber, EPDM reclaimed rubber and other products will also be hardened in winter, is a normal phenomenon, This is the result of a decrease in the ambient temperature leading to an increase in the hardness of the reclaimed rubber. However, due to changes in winter tire reclaimed rubber index, so the use of reclaimed rubber tire production of rubber products, we should note the following:
1, the winter temperature is low, if the tire reclaimed rubber storage warehouse or workshop ambient temperature of less than 20 ℃, will result in tire reclaimed rubber products continue to harden (reclaimed rubber in winter high hardness), so the use of rubber tire reclaimed rubber production Products to be transferred to a warm plastic in advance of the house, the time in 5-8 hours, the tire reclaimed rubber before use to return to room temperature conditions can make the reclaimed rubber used to save time, improve production efficiency and reduce labor Electricity costs.
2, winter reclaimed rubber and summer reclaimed rubber in the hardness, tensile strength, elongation and other aspects are different, so you need to adjust the tire reclaimed rubber formulations. For example, you can properly increase the amount of curing agent, accelerator, reduce the amount of reinforcing filler, especially hard carbon black products, to minimize the amount of powder compound; tire reclaimed rubber products in the anti-aging system can remain unchanged, and Vulcanization temperature does not have to increase, so as not to cause too much vulcanization speed scorch rubber, vulcanization time can be extended to achieve a better curing effect.
3, the winter tire reclaimed rubber production of rubber products, you can also add the appropriate oil, tire reclaimed rubber products to increase the amount of softener formulations. The softener in reclaimed rubber products can reduce the consumption of kneading power, promote the uniform dispersion of various excipients, and improve the elasticity of elongation of vulcanizates. This is the most direct and effective way to improve the hardness of reclaimed rubber.
Different reclaimed rubber products have different performance requirements, so the matters needing attention in winter use are also different. Rubber products manufacturers can Xiaobian these three points as a basic reference, how to make the most suitable winter reclaimed rubber formulations, but also the need for professional and technical personnel and a lot of tests.
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