Why rubber is a good polymer. What is rubber used for in the medical industry?

Rubber, together with plastics and fibers, is known as the three major synthetic materials, and is the only polymer material with a high degree of elasticity and excellent elasticity. The most important characteristic of rubber ball is firstly, the modulus of elasticity is very small, while the elongation is very high. Secondly, it has quite good air permeability and resistance to various chemical media and electrical insulation properties. Some special synthetic rubber has good oil resistance and temperature resistance, can resist fat oil, lubricating oil, hydraulic oil, fuel oil and solvent oil swelling; cold resistance can be as low as -60 ℃ to -80 ℃, heat resistance can be as high as +180 ℃ to +350 ℃. Rubber is also resistant to all kinds of flexing and bending deformation because of the small hysteresis loss. The third characteristic of rubber is that it can be used with a variety of materials, **** mixing, compounding, and thus modified to get a good overall performance.

Rubber PTFE seals (Rubber seals) is a class of general-purpose basic components in the sealing device, in the leakage and sealing of this pair of contradictions play a very important role. In the process of human conquest of nature to solve the problem of leakage and sealing. Has been to promote technological progress, to prevent and reduce environmental pollution is an important way

Route. Rubber seals are widely used in sealing technology, a class of rubber products. Because rubber has valuable elasticity of polymer materials, a wider temperature range, in different media to give a smaller stress will produce greater deformation, this deformation can provide contact pressure, compensate for leakage gap, to achieve the purpose of sealing. The main products are currently rubber seals, rubber gaskets, flange gaskets, rubber shock absorbing blocks, rubber O-rings, V-rings, X-rings, Y-rings, and other forms, sizes, colors, hardness and materials of rubber products, although our rubber seals products started slowly, but with the advancement of society, the emergence of new sealing production equipment and technology, the sealing products of the technical requirements of the increasingly demanding, thus Further promote the research and development of new products.