Spandex, a polyurethane elastic fiber is composed of 85% polyurethane polymer chain segments. The main raw materials of it are PTMEG and MDI.
MoreMeta-aramid is an aromatic polyamide fiber, the full name being polyisophthaloyl metaphenylene diamide fibre. It is known as PMIA in short.The main materials are IPC and MPD.
MorePara-aramid belongs to the aromatic polyamide family. The full name is poly (p-phenylene terephthalamide), abbreviated as PPTA or Aramid-II
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