In the silicone industry, liquid silicone rubber (LSR) generally refers to vinyl polysiloxane made of high-temperature curing of two components. Usually, liquid silicone products are catalyzed by platinum, through pouring or injection molding.
Compared with high-temperature vulcanized solid silicone rubber, liquid silicone rubber does not need mixing, has low energy consumption, a short molding cycle, and high production efficiency, the required production site is small, and it can achieve a fully automated process. The curing mechanism of liquid silicone rubber determines that its curing process will not produce byproducts, and the finished product has a small shrinkage rate, can be deeply cured, and has better physical and electrical properties. In addition, because liquid silicone rubber has thixotropy, low viscosity at a high shear rate, and good fluidity, it is especially suitable for the preparation of fine products and can realize the manufacture of products with various complex shapes.
Liquid silicone rubber has many performance advantages and processing convenience greatly broadens its application field so that it has become a silicone material variety with rapid development, higher grade, higher product technology content, and higher added value in recent years. At present, liquid silicone rubber is mainly used in the fields of pregnancy and baby products, medical supplies, electronics and electrical, automobile, and daily consumer goods, and with the change of market demand and technological progress and continuous development.