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Some rubber molding rubber feature Jul 22, 2016

1, natural rubber

Easier access to natural rubber and plastic. Constant viscosity and low viscosity standard Malay West rubber initial viscosity is low, generally do not need plastic chains. Other types of standard plastic ruomenni viscosity greater than 60 o'clock, you still need plastic chain.

Plastic when natural rubber mixing machine, roller temperature 30 ℃-40 ℃, time is about 15-20min. When using the mixer plasticating when temperature is above 120 degrees, about 3-5min. When adding plasticizers or plastic solutions agent, can significantly shorten the time of plasticating, improving the effect of plasticating.

2, styrene-butadiene rubber

In General, styrene-butadiene rubber Mooney viscosity 35-60. Styrene-butadiene rubber may also be without plastic chains. But after the plasticating can improve the dispersion of ingredients, helps to improve the quality of products. Especially sponge rubber, styrene-butadiene rubber after the plasticating, easy to foaming, and cell size.

3, BR

Br has cold flow, is not easy to increase refining effect. Used butadiene rubber Mooney viscosity in the polymerization time control in the proper range (45 ° ± 5 °) and, therefore, does not require mixing plasticating directly.

4, CR

Neoprene no plastic chain, but due to the tenacity of glue a larger mixing with mixer before Tong 3-5, thin, rubber products contribute to the operation, a thin temperature 30 ℃-40 ℃, was too high for easy sticking.