Plastic packaging is indispensable in our lives, and many things are packed in plastic. Today, Xiaobian tells everyone what plastic is? Plastics are based on synthetic or natural polymer resins. After adding various additives, it has ductility under certain temperature and pressure, and can fix a kind of material of its shape after cooling. The process of the natural or synthetic polymer resin molecules in the molten state, and the uniform distribution of the auxiliary molecules around the process is called plasticization. This process has been reached, which has been plasticized, has not been reached, and is considered to have not been plasticized.
The main characteristics of plastics are: low density, high specific strength, good acid resistance, alkali resistance, resistance to various organic solvents, easy molding, good transparency and easy coloration.
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