Jan 5, 2020 Viewed: 59 Tag: injection  

What are the commonly used injection molding materials for injection molding

Injection molding materials commonly used in injection molding and plastic materials suitable for injection molding, including plastics such as PE PP PS, are thermoplastic and suitable for thermal injection molding.


PE material: PE, also called polyethylene, is one of the more commonly used polymer materials in daily life. It is widely used in the manufacture of plastic bags, plastic films, and milk buckets.


PP material: polypropylene, polypropylene has high crystallinity and regular structure, so it has excellent mechanical properties. The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level. Polypropylene with a larger isotactic index has higher tensile strength, but as the isotactic index increases, the impact strength of the material decreases, but it does not change after falling to a certain value.


PS material: PS is polystyrene.


The above materials are commonly used in injection molding.


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