I. Interpretation
Plastic is a synthetic or semi-synthetic polymer, which is usually flexible and plastic and can be used to make various products. Such as plastic bags, plastic bottles and plastic toys.
Second, the source
Plastics were invented in the early 20th century. The first kind of fully synthetic plastic came from the American Belgian Leo Hendrick Baekeland,1July, 90714th, and registered the patent of phenolic plastic.
Third, synonyms
Phenolic plastic: a kind of plastic synthesized by phenol and formaldehyde, with hard texture and smooth surface. Mainly used as electrical insulation material, commonly known as bakelite.
Fourth, synonyms
Plastic: refers to plastic glue, which is usually used to make various products, such as toys and soles. Compared with plastics, plastics are more flexible and plastic, and are usually used to make products that need flexibility.
Examples of plastics
1. On the basis of introducing the structure, raw materials and production technology of a new type of hot-melt integral plastic drainage board, its performance was comprehensively tested and studied.
2. The folding hinge and cover are stainless steel plates, and the inner layer is filled with standard garbage bags, one is steel mesh and the other is rotatable plastic garbage bags.
3, rubber hose exposed to xenon arc lamp test, determine the color and appearance changes.
4. Under the bridge, there is a green home, a characteristic house made of organic plastic. The shape of the house is used to put all kinds of waste, such as cans, plastic bottles, colored cloth, billboards and so on.
5. The bleeder valve and liquid valve of the gas-liquid combined socket are bonded with adhesive, and PTFE plastic and stainless steel are bonded together to assemble parts.
6. Plastic bag is a light and easy-to-use packaging material.
7. This kind of plastic product has been specially treated to resist high temperature and corrosion.
8. Plastic flowers are very popular in interior decoration.
9. Plastic products can be seen everywhere in daily life.
10. This kind of plastic bag is waterproof and very suitable for packing items.