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H2O

What is plastic?

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1. History of plastic

Plastic is said to have started with celluloid in the late 19th century.
The disadvantage is that it is flammable and after the Second World War
The thermoplastic resins that we use have appeared
​ spread to the world

2. how to make plastic

Petroleum is the raw material of plastic
​plastic
material. Gasoline used in cars
Same raw material as plastic

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3. plastic type

like chocolate in plastic
The kind that softens when heat is applied
The kind that hardens when heated like an egg
There is also plastic.

4. Properties of plastic ①

Plastic is stronger than metal
No, but it's very light.
​ so where you don't need strength
Using plastic makes it lighter

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5. Properties of plastic ②

plastic is sensitive to heat
Product deformation in high temperature environment
becomes easier
​

6. Properties of plastic ③

Plastic does not conduct electricity, so it is easy to charge.
​In other words, clothes made from resin fibers are prone to generate static electricity.

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7. Properties of plastic ④

By processing plastic into cloth such as non-woven fabric, its hygroscopicity increases.
the clothes we wear
Also used for baby diapers

➡NEXTWhat is plastic molding?

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