0 Thermoplastic substances can be melted and formed into shapes that become hard, and can then be melted again. --
These cover such diverse possibilities as uses to replace synthetic fibres and inclusion in the manufacture of thermoplastics.
The many thermoplastic materials originated mainly in the post-war period.
However, helmets made from thermoplastic materials such as these are liable to deteriorate in strength if painted or treated with solvents.
The thermoplastic shell was shown to be inadequate in its initial format and this was thought to be due to insufficient inferior location points for the shell.
This shows how the life-cycle knowledge about sink mark defect formed due to protruding thermoplastic snap-fit, can motivate a designer to explore using an alternative assembly feature.
All of the shells and masks were made by the same mould room staff team, who have several years of experience using both thermoplastic and plaster-cast methods.
The demonstration showed the synthesis and exploration of a thermoplastic component life solution.
However, some patients may have more movement than others such that conventional immobilisation with thermoplastic shells may be inadequate.
