Analysis on the Development Status of Foam Sealing Strip Industry
2024-04-10
The barbaric growth and vicious competition of rubber foam sealing strip enterprises have brought great negative impact on the rubber and plastic industry. Industry users and media began to question the actual effect of rubber foam sealing strips, and became cautious from the original advocacy. Market sales also slowed down for several years and even saw sales decline in some regions. While domestic rubber foam sealing strip enterprises are facing difficulties, foreign rubber foam sealing strip brands have secretly entered the Chinese market. Of course, although the market is in a chaotic state, domestic big brands are groping forward and gradually find their own development direction. Foamed sealing strip is a kind of sealing strip that uses the characteristics of certain data to make its internal pores appear through processing. Divided into EPDM (EPDM) foam sealing strip, silicone foam sealing strip, PU foam sealing strip. The foaming sealing strip is formed once by microwave vulcanization technology, with smooth and beautiful surface and no contact marks. It has outstanding elasticity and anti-compression deformation, and excellent anti-aging function. Excellent flame retardant function, low smoke and low toxicity; product function is stable, high scale accuracy.
Rubber foam sealing strip characteristics:
★The thermoplastic rubber Santoprene (TPE) or nitrile butadiene rubber is compounded with chlorosulfonated polyethylene;
★Anti-ozone characteristics, anti-ultraviolet optical performance, good resistance to chemical solvents, the use of a wide range of temperature (-60 ℃ to 135 ℃);
★It has strong tear resistance and tear resistance, and will not break after millions of bending at -10 ℃-150 ℃;
★After compression quickly restore the original appearance, even in the harsh environment can also adhere to its original flexibility;
★Environmental protection of rubber and plastic composite rubber, * *, environmental protection, pollution-free. Because of the lack of polarity and low unsaturation, EPDM sealant has good resistance to various polar chemicals such as alcohols, acids, alkalis, oxidants, refrigerants, detergents, animal and vegetable oils, ketones and fats, etc. However, it has poor stability in aliphatic and aromatic solvents (such as gasoline, benzene, etc.) and mineral oil. The function is also reduced under the effect of concentrated acid for a long time. In the ISO/TO 7620, nearly 400 kinds of materials with corrosive gaseous and liquid chemicals on various rubber functions are collected, and 1-4 levels are regulated to indicate the degree of effect, and the corrosive chemicals are used for rubber functions.
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