What are the advantages and disadvantages of glass and plastic?

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Glass has good air permeability, no pollution, strong fashion, rich modeling, wide application and low cost. The die has accurate forming size, can manufacture light and thin products, and has rich and varied colors and exquisite technology.

Disadvantages are fragile, difficult to make heavy products, unable to make hollow products (pottery pots are hollow products, which are fired from top to bottom), difficult to take care of, and prone to water stains. Moreover, glass products have poor temperature tolerance and are easy to burst due to temperature difference changes. In addition, although fashionable, it is also easy to go out of date.

1, most plastics have strong corrosion resistance and do not react with acid and alkali.

2, the plastic manufacturing cost is low.

3. Durable, waterproof and light.

It is easy to be shaped into different shapes.

5. It is a good insulator.

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

Disadvantages of plastics:

1, recycling waste plastics is difficult and uneconomical.

2, plastic is easy to burn, and toxic gases are generated when burning.

3. Plastics are products extracted from petroleum, and petroleum resources are limited.

Plastic refers to a material that can be formed by flowing during processing with resin (or monomer directly polymerized during processing) as the main component and additives such as plasticizer, filler, lubricant and colorant as the auxiliary components.

Plastics mainly have the following characteristics: ① Most plastics are light in weight, good in chemical stability and will not rust; ② Good impact resistance; ③ Good transparency and wear resistance; ④ Good insulation and low thermal conductivity; ⑤ Good overall formability and coloring, and low processing cost; ⑥ Most plastics have poor heat resistance, high thermal expansion rate and are easy to burn; ⑦ Poor dimensional stability and easy deformation; 8 Most plastics have poor low temperature resistance and become brittle at low temperature; Pet-name ruby easy to aging; Attending some plastics are soluble in solvents.

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1 Plastic is not fragile: glass is fragile. For example, the lens materials of glasses are all resin now, which is the reason.

Plastic is light and low in cost: glass is heavy and high in cost. For example, the bottles of drinks are all plastic now.

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