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The latest features of the new plastic hollow board

2020-04-23 16:30
新型塑料中空板
Plastic hollow board is divided into general-purpose plastic hollow board and engineering plastic hollow board, mainly defined by the versatility of use, such as PE hollow board, PP hollow board, the price is relatively cheap. It can be produced on many different types of machines. Engineering plastic hollow board is more expensive, but the stability of raw materials and physical properties are much better, and it has both rigidity and toughness characteristics.
①Most plastic hollow plates are light, chemically stable, and will not rust;
②Good impact resistance;
③ Has good transparency and wear resistance;
④Good insulation and low thermal conductivity;
⑤Generally good formability and coloring, low processing cost;
⑥ Most plastics have poor heat resistance, large thermal expansion rate, and easy to burn;
⑦ Poor dimensional stability and easy deformation;
⑧ Most plastics have poor low temperature resistance and become brittle at low temperatures;
⑨ Easy to age;
⑩Some plastics are easily soluble in solvents.
Plastic hollow board can be divided into two categories: thermosetting and thermoplastic. The former cannot be reshaped and used, and the latter can be produced repeatedly.
There are basically two types of plastic polymer structures: the first is a linear structure, and the polymer compound with this structure is called a linear polymer compound; the second is a body structure, with a polymer compound with this structure Called the body type polymer compound. Some polymers have branched chains, called branched chain polymers, which belong to a linear structure. Although some polymers have cross-links between molecules, they are less cross-linked. They are called network structures and belong to the body structure.
Two different structures, showing two opposite properties. The linear structure (including branched structure) polymer has elasticity and plasticity due to the existence of independent molecules. It can be dissolved in a solvent, melted by heating, and has low hardness and brittleness. The body-structured polymer has no independent macromolecules, so it has no elasticity and plasticity, cannot be dissolved and melted, and can only swell. It has greater hardness and brittleness. Plastics have two types of polymers. Thermoplastics are made of linear polymers and thermosetting plastics are made of bulk polymers.

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