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What are the classifications of high temperature resistant silicone tubes?

2019-12-06

What is the high temperature resistant silicone tube? It is the basic material of the high temperature resistant silicone tube industry. It is widely used in the manufacture of tires, hoses, tapes, cables and other various high temperature resistant silicone tube products. Classification of high temperature resistant silicone tube:

1. Divided into natural high temperature resistant silicone tube and composition high temperature resistant silicone tube according to material.

2. According to the shape, it is divided into block raw rubber, latex, liquid high temperature resistant silicone tube and powder high temperature resistant silicone tube.

Latex is a colloidal water dispersion of high temperature resistant silicone tube; liquid high temperature resistant silicone tube is an oligomer of rubber, which is generally a viscous liquid before vulcanization; powder rubber is a latex that is processed into a powder to facilitate ingredients and processing Production.

3. According to use, it is divided into general type and special type.

General-purpose rubber has better comprehensive functions and is widely used. Mainly: ① Natural rubber. ② Isoprene rubber, also known as natural rubber. ③ SBR, referred to as SBR. ④ Butadiene rubber, referred to as BR. Special rubber refers to rubber with some special functions. There are:

① Silicone rubber, referred to as SILICONE

The main chain is composed of silicon-oxygen atoms, with organic groups on the silicon atoms. High and low temperature resistance, ozone resistance, good electrical insulation. Operating temperature -40 ℃ ﹋ + 220 ℃; oil resistance is especially good, temperature resistance, wear resistance, oil resistance! It is especially suitable for automobile crankshaft oil seals that are not resistant to temperature and volatile oils (diesel, gasoline). They are resistant to oxygen, ozone and sunlight (ultraviolet rays).

② Viton. Viton

Composition rubber containing fluorine atoms in the substructure. Generally expressed by the number of fluorine atoms of the fluorine-containing unit in the copolymer, such as fluorine rubber 23, is a copolymer of vinylidene fluoride and trifluorochloroethylene. Fluorine rubber is resistant to high temperature, oil and chemical corrosion. Oil-resistant, high-temperature resistant, chemical resistant, and acid and alkali resistant. Working temperature—30 ℃ + 280 ℃. Suitable for crankshaft oil seals, timing oil seals in jet engines, and O-rings and seals for chemical agents


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