What are the advantages of plastics

Plastics are materials that can be flow molded during processing with resin (or directly polymerized with monomers during processing) as the main ingredient and plasticizers, fillers, lubricants, colorants and other additives as auxiliary ingredients.

Plastics are synthetic polymer compounds that are free to change their shape and style. Plastic is a material that is polymerized by synthesis or condensation reaction using monomer raw materials, and it is composed of synthetic resin and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants.

Plastics have the following characteristics:

① most plastics are lightweight, chemical stability, will not rust; ② good impact resistance; ③ good transparency and abrasion resistance; ④ good insulation, low thermal conductivity; ⑤ general molding, coloring, low processing costs; ⑥ most plastics have poor heat resistance, thermal expansion, easy to combustion; ⑦ poor dimensional stability, easy to deformation; ⑧ Most plastics have poor low-temperature resistance, brittle at low temperatures; ⑨ easy to age; ⑩ some plastics are soluble in solvents.

Plastics can be distinguished as thermosetting and thermoplastic two categories, the former can not be reshaped to use, the latter can be repeated again and again to repeat the production.

There are basically two types of plastic polymer structure: the first is a linear structure, with this structure of polymer compounds known as linear polymer compounds; the second is the structure of the body, with this structure of polymer compounds known as body polymer compounds. Some macromolecules with branched chains, called branched polymers, belong to the linear structure. Some macromolecules, although intermolecular crosslinking, but less crosslinking, known as the network structure, belonging to the body structure.

Two different structures, showing two opposite properties. Linear structure (including branched structure) polymers due to the existence of independent molecules, so there are elasticity, plasticity, in the solvent can be dissolved, heating can melt, hardness and brittleness of the characteristics of the smaller. Body structure polymers due to the existence of no independent macromolecules, so there is no elasticity and plasticity, can not be dissolved and melted, can only be dissolved, hardness and brittleness. Plastic is two kinds of structure of polymer are available, made of linear polymer is thermoplastic, made of body type polymer is thermosetting plastic.

Plastics have the following characteristics compared with other materials

〈1〉resistant to chemical attack

〈2〉glossy, partly transparent or translucent

〈3〉mostly good insulators

〈4〉lightweight and strong

〈5〉easy to process can be produced in large quantities, cheap

〈6〉used for a wide range of purposes, versatile, easy to use, and easy to use. Wide range of uses, utility, easy to color, part of the high temperature

Plastics are also distinguished as general-purpose plastics and engineering plastics, mainly for a wide range of uses to define, such as PE, PP is cheap, can be used in a variety of different types of machines on the production. Engineering plastics are more expensive, but the stability of raw materials and physical properties are much better, in general, it has both rigidity and toughness of the two characteristics.

Advantages of plastics

1, most of the plastic corrosion resistance is strong, does not react with acids and alkalis.

2, plastic manufacturing cost is low.

3, durable, waterproof, lightweight.

4, easy to be molded into different shapes.

5, is a good insulator.

6, Plastics can be used to prepare fuel oil and fuel gas, which can reduce crude oil consumption.