Bentonite as a drop of rubber can be used?
Bentonite (Tao Tu) in the large amount of shoes, such as paste molding outsole, molding outsole, foxing, sponge in the heel, especially low insulation rubber shoes, rubber shoes are adding flame retardant bentonite (Tao Tu), the main and natural rubber, polybutadiene rubber, styrene butadiene rubber,
The bentonite can be added directly to the rubber to make it flame retardant, insulating and wearable. Stationery, eraser is also added bentonite.
Bentonite has hygroscopicity, and can absorb 8~15 times the volume of water. After water absorption expansion, can expand several times, can amount to more than 30 times. Bentonite and rubber organic cementitious materials can be composed of the maximum expansion rate of 250%-500% water swellable rubber, the water swellable rubber can be made of water expandable sealing strip and other waterproof materials, the materials are arranged on the concrete construction joints, with water swell, water sealing play a role. Shanghai tunnel bridge special rubber factory and Weifang Hengtai building materials Co. Ltd. have water swellable rubber, rubber sealing belt series products for deformation of foundation engineering, reservoir dam, tunnel, underground engineering, high-rise in joints, construction joints and settlement joints waterproof seal for various mechanical and electrical equipment, underwater equipment joint sealing. At present, the most common rubber sealing tape are chloroprene rubber, natural rubber and styrene butadiene rubber.
