ʻO PoyethyStane Terephthalat (Pet) kahi meaʻo SEI Crystalline Polymer i loaʻa i ka paleʻana i keʻano o ke kaheʻana a me ka sinnability. Ua hakuʻia ka polymer i nā'āpana hana e like me ka hōʻikeʻana ma ke kiʻi 1.ʻO kēlā me kēia papa keʻano o ka lōʻihi o ka 1.09 NM a me kahi kaumaha molena o ~ 200. Ke hanaʻia mai ka hopena o ka hopena o Terephthalichac a me Ethylene Glycol, ua kiʻiʻia ma ka hema ma -oh. Ua hele pūʻiaʻo Polymerization e ka hanaʻana o ka wai i laweʻia ma lalo o ke kiʻekiʻe kiʻekiʻe a me ka hakahaka. Wahi a ka nohoʻana o ka wai i loko o ka hale molten e hana wikiwiki ai i keʻano o ka polymer ma mua o nā loli o nā fibers.

ʻO ka hui pūʻana o nā pū me ka pōkole pōkole pōkole e hana i ka polymer i kahi pololi e like me ka polyolefin a iʻole polyamide. ʻO ka nele o ka mokuahi segmental i nā hua lāʻau polymer E loaʻa i kahi'āpana POWET THEXTER TET e loaʻa i kahi helu he 100 e like me nā moloka maʻamau no ka 100nm ka lōʻihi o ka moloka maʻamau ma kahi o 20,000. ʻO nā kiʻekiʻe kiʻekiʻe o ka polymerization e hana i nā mea kiʻekiʻe kiʻekiʻe o nā penikala kiʻekiʻe akāʻo keʻano mele mele a me ka paʻa o ka ultur i kahi nui o ka moʻo hydrolytic hydrolytic degradation. ʻO ke anaʻana o ke kiʻekiʻe o ka pae o ka polymerization e hanaʻia e ka molina ma ka molina (ma ke anaʻana i ka pohō ma kahi o keʻano o ka callidit. ʻO ka hope loa o ke ana o ka pain chein iʻikeʻia e like me ka viscolis a iʻole ivy a me ka waiwai no ka Phenol First ʻO ka IV ma ka Passvelt Solivent e pili ana i ka MV (Viscosity Awelika Mile Molecular)