Text of Plastics

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Text of Plastics

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Âge recommandé: 14 ans

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Vicent Pons Carbonell

Spain

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Vicent Pons Carbonell

1 Décembre 2014

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Text of PlasticsVersion en ligne Text of Plastics par Vicent Pons Carbonell 1 Plastics are a The result of the polymerization of monomers b Elastomers which form atoms c Thermoplastics which melt at high temperatures d Light and resistant to high temperatures. 2 Plastics are: a More resistant than metals, which is why they are used. b Good heat, electricity and sound conductors. c Contaminants, which is why they should not be burned d Good heat, electricity and sound insulators. 3 Plastics that are recycled to make other plastics are: Written answer 4 Thermoplastics Choose one or more answers a Are, for example, polyethylene, polypropylene and neoprene. b Are formed by macromolecules in a linear or complex way. c Can be re-processed various times like Thermosetting plastics 5 Nylon: a Is a synthetic fiber that is stronger than any natural fiber b Is used to make jeans, shirts and socks. c Is very stretchy. 6 In the group of thermoplastics, one stands out as holding high temperatures. This plastic is called: a PET b PVC c Polyvinyl d Teflon 7 PVC is often used for windows and their insulation, with regard to thermal and acoustic insulation. It has a bad reputation because a The color changes with time b It doesn't hold well against direct sun light c It's fragile. d Environmental problems due to additives like dust, Phthalate, * Substances added to plastics to increase their flexibility, transparency, durability, and longevity Feedback 1 The result of the polymerization of monomers 2 Contaminants, which is why they should not be burned 4 Can be re-processed various times like Thermosetting plastics

Text of PlasticsVersion en ligne

Text of Plastics

par Vicent Pons Carbonell

Plastics are

The result of the polymerization of monomers

Elastomers which form atoms

Thermoplastics which melt at high temperatures

Light and resistant to high temperatures.

Plastics are:

More resistant than metals, which is why they are used.

Good heat, electricity and sound conductors.

Contaminants, which is why they should not be burned

Good heat, electricity and sound insulators.

Plastics that are recycled to make other plastics are:

Written answer

Thermoplastics

Choose one or more answers

Are, for example, polyethylene, polypropylene and neoprene.

Are formed by macromolecules in a linear or complex way.

Can be re-processed various times like Thermosetting plastics

Nylon:

Is a synthetic fiber that is stronger than any natural fiber

Is used to make jeans, shirts and socks.

Is very stretchy.

In the group of thermoplastics, one stands out as holding high temperatures. This plastic is called:

PET

PVC

Polyvinyl

Teflon

PVC is often used for windows and their insulation, with regard to thermal and acoustic insulation. It has a bad reputation because

The color changes with time

It doesn't hold well against direct sun light

It's fragile.

Environmental problems due to additives like dust, Phthalate, * Substances added to plastics to increase their flexibility, transparency, durability, and longevity

Feedback

The result of the polymerization of monomers

Contaminants, which is why they should not be burned

Can be re-processed various times like Thermosetting plastics

Text of Plastics

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Text of PlasticsVersion en ligne

par Vicent Pons Carbonell

Plastics are

Plastics are:

Plastics that are recycled to make other plastics are:

Written answer

Thermoplastics

Choose one or more answers

Nylon:

In the group of thermoplastics, one stands out as holding high temperatures. This plastic is called:

PVC is often used for windows and their insulation, with regard to thermal and acoustic insulation. It has a bad reputation because

Feedback