Performance and Application of EPP Material Mold
Published:
2022-11-22
东柯模具
EPP is the abbreviation of expanded polypropylene, a new type of foam plastic.
EPP has light specific gravity, good elasticity, shock resistance and compression resistance, high deformation recovery rate, good absorption performance, oil resistance, acid resistance, alkali resistance, resistance to various chemical solvents, non water absorption, insulation, heat resistance (- 40~130 ℃), tasteless, 99% recyclable, and almost no performance degradation. It is a truly environment-friendly foam. EPP beads can be molded into EPP products of various shapes in the mold of the molding machine.
EPP is widely used in automobiles, such as bumper core materials, anti-collision blocks, roof and other linings, door fillers, headrests, sun visors, etc., which can save fuel consumption and improve the safety factor of passengers.
EPP has been widely used in the packaging industry, such as electronic products, medical devices, etc., especially in the packaging of export products. Because of its high temperature resistance, it is also widely used in food packaging and microwave heating.
Generally, EPP beads should first be pressurized in the pressure tank (even if the beads are filled with air of a certain pressure), then compressed air is injected into the mold of the EPP molding machine through the spray gun, and steam is introduced to further expand the EPP beads and then the surface is fused together for molding. After cooling, the mold is stabilized at a certain temperature to obtain EPP products.
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