There are basically two types of plastic polymer structures used in spray plastic bottles: the first is a linear structure. A polymer compound having such a structure is called a linear polymer compound; the second type is a body structure. A polymer compound having such a structure is called a bulk polymer compound.

Some polymers with branched chains are called branched polymers and belong to a linear structure; while some polymers have cross-linking between molecules, but less cross-linking, they are called network structures and belong to a body structure. The two different structures of the spray bottle plastic show two opposite functions. The linear structure (including the branched structure) polymer has elasticity and plasticity because it has independent molecules. It can be dissolved in solvents and heated. It can be melted, with less hardness and brittleness; because there is no independent macromolecule in the body structure polymer, there is no elasticity and plasticity, it can only swell, and the hardness and brittleness are greater. Spray bottle plastics have polymers of both structures. Thermoplastic spray bottle plastics are made from linear polymers and thermoset spray bottle plastics are made from body polymers.

The main functions and characteristics of plastic spraying plastic bottles:

① Most spray bottle plastics have poor low temperature resistance and become brittle at low temperatures;

② Good impact resistance, will not produce important reactions;

③ general moldability, good colorability, low processing cost;

④ Good insulation and low thermal conductivity;

⑤ Has better transparency and abrasion resistance;

⑥ Most spray bottle plastics have poor heat resistance, large thermal expansion rate, and easy to burn;

⑦ The size is not disordered and easily deformed;

⑧Most spray bottles are light in weight, chemically uncluttered, and will not produce important reactions during use, and will not rust;

⑨The spray bottle plastic is easy to age, and it will affect the use effect and value after falling asleep after a long time;

⑩Some spray bottle plastics are easily soluble in solvents and will dissolve when encountering certain solvents.

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