Rubber band

Products from rubber

Rubber products (rubber products) refer to activities that use natural and synthetic rubber as raw materials for the manufacture of rubber products and also include remanufactured rubber products. from waste rubber. The production of synthetic rubber has greatly exceeded that of natural rubber, in which styrene butadiene rubber is the largest.

characteristics

1.When the rubber product is molded, after high pressure compression, the adhesive force provided by the elastomer cannot be eliminated. When kneading and releasing often produces extremely unstable shrinkage (the shrinkage rate of rubber varies depending on the type of rubber.), It takes a while for it to be gentle and stable. Therefore, when starting to design a rubber product, regardless of formula or mold, it is necessary to carefully consider the fit. Otherwise, the product size is likely to be unstable and the product quality is low.

2.Rubber is a molten thermoset elastomer, while plastics are molten and cold set. Due to different types of sulfides, the temperature range of rubber molding and curing is also quite different, even it can be affected by climate change as well as indoor temperature and humidity. Therefore, the production conditions of rubber products need to be adjusted appropriately from time to time. Otherwise, the quality of the products may vary.

3.Rubber products are compound rubbers produced from rubber raw materials after mixing in an internal mixer as raw materials. The formulation is designed according to the required rubber product characteristics during the rubber mixing process, and the required product hardness is determined. The product is made and molded by rubber sheet vulcanizing machine. After the product is formed, flashing treatment is carried out to make the surface of the product smooth and burr-free.

4.Rubber product aging test belongs to the category of aging test. Rubber aging is a phenomenon in which the structure and performance of rubber and its products are changed due to the comprehensive impact of internal and external factors during processing, storage and use. that loses its use value. It shows cracking, sticking, hard, soft, chalking, discoloration, mildew, etc.