Introduction to porous plastics
2021-04-27 Browse:85time The author:
Porous plastic, also known as foamed plastic, is a kind of material with fine pores and plum-like structure formed by foaming with synthetic resin as the matrix, adding foaming agents and other additives. Commonly used resins are polyethylene, polystyrene, polyvinyl chloride, polypropylene, polyurethane and so on. Commonly used foaming methods include physical foaming, chemical foaming and mechanical foaming. There are two types of bubble structures: one is independent bubbles, also known as closed-cell structure, each of which is thin-walled. Independent; the second is connected bubbles, also known as open-cell structure, each bubble communicates with each other into a whole. Generally, the diameter of the bubble is between 50-500μm, the thickness of the bubble film is between 1-10μm, and there are 8-80 million bubbles in 1 cm3 synthetic foam.
Porous plastics , I hope everyone can understand.
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