[Chemical Knowledge]：The nature and use of SIS

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The nature and use
of SIS in the field of raw materials for chemical production
SIS(Styrene-Isoprene-Styrene) is a terpolymer with excellent thermal stability, oxidation resistance, oil resistance, chemical resistance and mechanical properties. In the field of chemical production raw materials, SIS is widely used in many aspects, such as adhesives, sealants, coatings, modifiers, etc. This article will detail the nature and use of SIS.

1. the properties of SIS

1. Thermal stability
SIS has high thermal stability and can be used at high temperatures without decomposition. This property allows SIS to maintain stable performance and structure during high temperature processing.
2. Oxidation resistance
SIS has good oxidation resistance and can be used for a long time in an oxidizing environment without degradation. This property allows SIS to have a high service life in oxidizing media.
3. Oil resistance
SIS has good oil resistance and can be used in oily media for a long time without dissolving. This property makes SIS have high application value in oily environment.
4. Chemical resistance
SIS has good chemical resistance and can resist the erosion of a variety of chemical substances. This property makes SIS have high use value in chemically corrosive environments.
5. Mechanical properties
SIS has good mechanical properties, high tensile strength and tear strength, but also has good flexibility and ductility.

2. SIS use

1. Adhesive
SIS can be used as an adhesive, with high bonding strength and weather resistance, can be used for bonding a variety of materials, such as rubber, plastic, metal and so on.
2. Sealant
SIS can be used as a sealant with good sealing performance and oil resistance, and can be used for sealing a variety of mechanical equipment, such as automobiles, aerospace equipment, etc.
3. Coating
SIS can be used as a coating, with good weather resistance, chemical resistance and mechanical properties, can be used for a variety of substrate surface coating, such as metal, concrete and so on.
4. modifier
SIS can be used as a modifier to improve the performance and processability of other materials, such as improving the toughness of plastics and improving the wear resistance of rubber.

In short, SIS has a wide range of uses in the field of chemical production raw materials, which can improve the performance and processability of products, and at the same time extend the service life of products.

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