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The most essential difference between plastics and rubber is plastic deformation when plastic deformation occurs, while rubber is elastic deformation. In other words, plastic does not easily recover its original shape after deformation, but rubber is relatively easier. Plastic elasticity is very small, usually less than 100%, while rubber can reach 1000% or more. Most of the plastic molding process is completed, the product process will be completed; and after the rubber forming process, the process of vulcanization is necessary. In addition, plastic is generally injection molding, and rubber is generally molded, of course, now rubber can also be done by injection, the principle is similar to plastic molding, but the cost will be relatively high. Usually the rubber mold cost is much cheaper than that of plastic mold, plastic mold of block is a normal, while the rubber mold may need only three thousand or four thousand can, of course, on the other hand, rubber products than the price of plastic products to be high, for example, is an ordinary plastic mat may only need a few cents, while the rubber will need a few dollars. There are many reasons for this difference. Mainly include: material prices, forming methods, recyclability and other aspects of the decision. In the continuous development of the industry, plastic products and rubber products corresponding to the development, but because the plastic relatively early development technology, the industry is relatively mature, while the rubber is developed recently, so the plastic may not be so perfect, but with the development of technology and industry, the field of rubber the application of more and more widely distributed, can see traces of rubber products and rubber products in all walks of life, has become an integral part of the national industry. |
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