3º ESO PLASTIC

Thermoplastics are...

• composed of polymer chains that are laterally connected.

• composed of polymer chains that are strongly connected.

• composed of polymer chains that are weakly connected to each other.

In general plastics are physically resistant to ........

• stretching

• bending

• twisting

• pression

In general plastics are good.....

• electrical and thermal insulators

• acoustic conductor

• and beautiful

• electrical and thermal conductor

These type of plastics keep this new shape after they cool down, this heating and cooling process can be repeated as many times as needed.

• Repited plastics

• Thermoplastics

• Melamine

• Elastomers

According to their origin plastics can be divided into

• two types: Termoplastic and termosetting plastic

• two types: Ecoplastic and artificial plastic

• two types: Natural and synthetic plastics

• two types: Hard plastic and soft plastic

Plastics are malleable because.........

• is possible to make sheets

• is possible to cut it easy

• is possible to make threads

• is possible to bend it

Plastics consists of long chains of molecules mostly made of the element ......

• Grafeno

• Oxigen

• Vibranium

• Carbon

Plastics are ductile because .......

• is possible to make sheets

• is possible to make threads

• is possible to cut it easy

• is possible to bend it

Plastics are permeable to liquids.

• True

• False

The industrial production of plastic from raw materials is called .....

• plastification

• polymerization

• processing

• joining