General Purpose Polystyrene (GPPS)

General purpose polystyrene (GPPS) is one of the most common and well-known types of polystyrene, which has many applications in various industries due to its unique properties. This polymer is made from the monomer styrene and is very popular due to its transparency, hardness, and reasonable price.

Structure and properties

Structure: GPPS is a linear polymer consisting of long molecular chains. These chains are interconnected and create a hard and transparent structure.
Properties:
High transparency: GPPS has excellent transparency due to its regular molecular structure.
Hardness and strength: GPPS is a hard and resistant material.
Electrical insulation: GPPS is a good electrical insulator.
Ease of molding: It is easily molded into various shapes.
Affordable: It has a lower price than many other polymers.

GPPS Applications

Packaging industry: production of disposable containers, food packaging, packaging of electronic products
Electronics industry: production of small electronic appliance bodies such as radios, watches and mobile phone accessories
Household appliances: production of small household appliance parts such as handles, buttons and internal covers
Toys: production of plastic toys
Medical industry: production of laboratory containers and packaging of medical products

Advantages of GPPS

High transparency
Hardness and strength
Electrical insulation
Ease of molding
Affordable price
Disadvantages of GPPS
Low impact resistance: GPPS is more brittle than impact-resistant polystyrenes.
Low thermal resistance: It deforms and softens at high temperatures.
Flammability: It ignites easily when exposed to flame.