Rubber Rings Factory introduced that plastic and rubber are both polymer materials, which are mainly composed of carbon and hydrogen atoms. Others contain a small amount of oxygen, nitrogen, chlorine, silicon, fluorine, sulfur and other atoms. They have special properties and special uses. At normal temperature, plastic is solid, very hard, and cannot be stretched or deformed. However, the rubber is not high in hardness and elastic, and can be stretched to become longer, and it can be restored to its original shape after stopping the stretching. This is due to their different molecular structures. Another difference is that plastics can be recycled and reused many times, while rubber cannot be recycled directly. It can only be processed into reclaimed rubber before it can be used.
1. Thermal expansion Due to the large free volume between rubber molecular chains, the internal rotation of the chain segments becomes easier when the temperature rises, which will make the volume larger. The coefficient of linear expansion of rubber is about 20 times that of steel. This must be considered in the design of the vulcanization model of rubber products, because the linear size of the rubber product will be 1.2~3.5% smaller than the model. For the same kind of rubber, the hardness and raw rubber content of the rubber also have a larger shrinkage rate. The shrinkage rate is inversely proportional to the hardness and directly proportional to the gel content.  
2. Thermal conductivity rubber is a poor conductor of heat, and its thermal conductivity is about 2.2~6.28 watts/m 2•0K when the thickness is 25 mm. It is an excellent thermal insulation material. If the rubber is made into a microporous or sponge state, The heat insulation effect will be further improved, and the thermal conductivity will be reduced to 0.4~2.0 watts. Any rubber parts in use may generate heat due to hysteresis loss, so attention should be paid to heat dissipation.
Through the above introduction, Mist Pump Box Manufacturers hopes that you can simply refer to the content of this article in future use.