ポリウレタンとは (PU) ワイヤー
ポリウレタン, 一般にPUと略される, ウレタン結合によって結合された有機単位の鎖からなるポリマーです.
Polyurethane polymers are formed by reacting a monomer containing at least two isocyanate functional groups with another monomer containing at least two alcohol groups in the presence of a catalyst.
Polyurethane formulations cover an extremely wide range of stiffness, hardness, and densities. These materials include:
1.low density flexible foam used in upholstery and bedding,
2.low density rigid foam used for thermal insulation and e.g. automobile […]
