Zhongxingshun Imported Seals, O-Ring manufacturers bring some problems with rubber materials
1. What is fluororubber?
Answer: A class of polymer elastomers containing fluorine atoms on the carbon atoms of the main chain or side chain. 2. What is rubber?
Answer: Rubber is a highly elastic polymer material, which is divided into natural rubber and synthetic rubber. It is extracted from natural plant liquid and is called natural rubber. In Sealing, synthetic rubber is commonly used as sealing material. Such as nitrile rubber, fluorine rubber, silicone rubber, ethylene propylene rubber, etc. The physical properties of rubber materials are closely related to their structure. The main chain structure of the rubber determines the basic properties of the rubber, and the side chain structure has a great influence on the medium resistance and electrical properties of the rubber.
3. What is silicone rubber?
Answer: It refers to the polymer elastic material whose molecular chain is mainly SI-O unit and has both organic and inorganic properties.
4. What is ethylene propylene rubber?
Answer: Copolymers synthesized from ethylene and propylene as base monomers. Divided into two yuan ethylene propylene diene (EPM) and three yuan ethylene propylene diene (EPDM). EPDM is composed of ethylene, propylene and a small amount of non-conjugated diene.
5. What is nitrile rubber?
Answer: A copolymer of butadiene and acrylonitrile two monomers in the emulsion initiated by free radical polymerization.
6. What is cloth rubber?
A: The mixed material of rubber and fiber braid, adding fiber braid to rubber can improve the wear resistance and tear strength of the material.
7. What is rubber hardness?
Answer: Refers to the ability of the material surface to resist plastic deformation or rupture. Hardness is an important indicator of sealing materials. The hardness of phase glue materials is commonly expressed as Shore Hardness (HS).
8. What is the elongation of rubber material?
A: The elongation is the reciprocal index of the rigidity of the material, which is expressed as the percentage of the ratio of the material's tensile amount to the length in the natural state. The allowable elongation of the material refers to the maximum elongation before sexual damage or deformation occurs.
9. How to calculate the compression amount of rubber O-ring?
Answer: (section diameter - groove depth) O Ring section diameter
10. What are the characteristics of rubber?
A: Silicone rubber is a linear polymer with Si-O as the main chain and organic groups as side chains. Silicone rubber has good thermal stability and low temperature performance. Generally, the temperature of silicone rubber can reach -60 degrees Celsius, while the temperature of low phenyl silicone rubber can reach -100 degrees Celsius. It has good pressure deformation resistance and is a suitable material for sealing products, such as some container seals that need to be opened frequently. Silicone rubber is highly permeable to gas, but has a selective permeation of gas. Silicone rubber is physiologically inert, non-toxic and tasteless, and is widely used in the medical and health and food industries.
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