The rubber material of several Answers

What is rubber?
A: The rubber is a highly elastic polymer material, and is divided into two kinds of natural rubber and synthetic rubber is natural rubber from the liquid of the natural plant extract made. Synthetic rubber commonly used as the sealing material in the seal. Such as nitrile rubber, fluorine rubber, silicone rubber, ethylene-propylene rubber. The physical properties of the rubber material and structure close. Determines the basic properties of the rubber to the main chain structure of the rubber, the side chain structure the resistant medium capacity, electrical properties of the rubber have a great impact.
What is the silicone rubber?
A: refers to the molecular chain of the Si-O unit based, both organic and inorganic nature of the polymer elastic material.
What is fluorine rubber?
A: a polymeric elastomer containing a fluorine atom on the carbon atom of the main chain or side chain.
What is the ethylene-propylene rubber?
A: a copolymer of ethylene and propylene as the base monomer synthesis. Divided into ethylene propylene (EPM) and ethylene propylene diene monomer (EPDM). EPDM is ethylene, propylene, plus a small amount of non-conjugated diene composition.
What is nitrile rubber?
A: the two monomers of butadiene and acrylonitrile radical initiator in the emulsion polymerization of the copolymer.
What rubber cloth?
A: addition of fibers in the mixed material, the rubber of the rubber and fiber braid braid can increase the material abrasion resistance and tear strength.
7. Rubber?
A: The silicone rubber is the main chain of Si-O, the organic group is a side chain linear polymers. Silicone rubber, good thermal stability, low temperature performance is also good. The general silicone rubber using temperature can reach -60 degrees Celsius, the low phenyl silicone rubber use temperature of -100 degrees Celsius. Withstand permanent deformation performance is good, do sealing products suitable material, such as frequently open container sealed. Silicone rubber on the gas-permeable, but gas through selective. Silastic physiologically inert, non-toxic, tasteless, wide range of applications in the health and food industries.
8 What is the hardness of rubber?
A: refers to the ability to resist plastic deformation or rupture of the material surface. Hardness is an important indicator of the sealing material. Phase rubber hardness of the material commonly Shore hardness (HS).
9 What is the elongation of the rubber material?
A: The elongation is the reciprocal of the index of the material stiffness, expressed as a percentage ratio of the amount of stretch with the natural state of the material length. The material allows Elongation refers does not occur in the permanent damage or permanent deformation before the maximum elongation.
10 How to calculate the amount of the rubber O-ring compression?
A: (cross-sectional diameter - the depth of the trench) O ring cross section diameter