True or False. Air pressure and vacuum are both used in pressure forming.

Which material is the most hygroscopic and is capable of containing as much as 9%of its weight in water?

It is composed of the protein keratin, which consists of long polypeptide chains built from eighteen different amino acids.

It is a transparent plastic material with outstanding strength, stiffness and optical clarity. It is easy to fabricate, bonds well with adhesives and solvents, and is easy to thermoform. It has superior weathering properties compared to many other transparent plastics.

True or False. Parison is the raw material used in blow molding.

Of what range Elastomers can stretch and return to their original lengths without any trouble?

What structure of polymers are tied together via covalent bonding?

At what degree Celsius does thermoplastic reach its softening point where it can be stretched to its desired shape?

It is a natural polymer originating from various insect and spider species. It is composed of two different proteins, sericin and fibroin, among which fibroin is an FDA-approved materials for some medical devices.