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[Chemical Knowledge]：Properties and Uses of GPPS

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GPPS(General Purpose Polystyrene) is a general-purpose polystyrene, which is an important raw material for chemical production. It has many excellent properties and a wide range of uses, so it is widely used in chemical industry, electronics, construction, automobile, packaging and other fields.

1. The nature of GPPS

1. Physical properties
GPPS is a colorless and transparent thermoplastic, with high hardness and rigidity, good electrical insulation, chemical resistance and processing flow. Its density is small, about 1.04-1.06g/cm³, and it has good water resistance and moisture resistance.

2. Chemical properties
GPPS has good acid resistance, alkali resistance, oil resistance, but not strong oxidants and aromatic hydrocarbons. At high temperatures, GPPS is prone to thermal decomposition and oxidation reactions.

3. mechanical properties
GPPS has high impact strength and wear resistance, but its toughness is poor, easy to be affected by stress cracking.

2. GPPS use

1.
in the field of chemical industry GPPS in the chemical industry is widely used in the manufacture of various chemical equipment and pipelines, such as storage tanks, reactors, heat exchangers, valves, pipelines, etc. Because of its good chemical resistance and processing fluidity, it can produce products of various shapes and specifications.

2.
in the field of electronics GPPS is often used in the manufacture of electrical insulation parts, electronic components and housings in the field of electronics. Because of its good electrical insulation and heat resistance, it can be used at higher temperatures.

3.
in the construction field GPPS is often used in the manufacture of building templates, thermal insulation materials, waterproof materials, etc. Due to its good mechanical properties and processing fluidity, it can produce a variety of materials required for construction.

4.
in the automotive field GPPS is often used in the automotive field to manufacture automotive lampshades, dashboards, seat backs, etc. Because of its good transparency and processing fluidity, it can produce auto parts of various shapes and specifications.

5.
in the field of packaging GPPS is often used in the manufacture of various packaging boxes, caps, bottles, etc. Because of its good chemical resistance and processing fluidity, it can produce a variety of food, medicine and other required packaging materials.

In short, GPPS, as an important raw material for chemical production, has a wide range of uses and excellent properties, and provides important support for the development of various fields.

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