Ko te polyurethane thermoplastic (TPU) he momo kirihou ahurei i hangaia i te wā e puta ai he tauhohenga polyaddition i waenga i te diisocyanate me te kotahi, neke atu rānei ngā diol. I whakawhanakehia tuatahitia i te tau 1937, he ngohengohe, he ngāwari hoki tēnei polymer maha-whakamahinga ina werahia, he pakeke ina whakamataohia, ā, ka taea te tukatuka anō i ngā wā maha me te kore e ngaro te hanganga. Ka whakamahia hei kirihou hangarau ngāwari, hei whakakapi rānei mō te rapa pakeke, he rongonui te TPU mō ngā mea maha tae atu ki: tōna roa me te kaha kume; tōna ngāwari; me ōna kaha ki te ātete ki te hinu, te hinu, ngā whakarewa, ngā matū me te pakū ki ngā taumata rerekē. Nā ēnei āhuatanga ka tino rongonui te TPU puta noa i ngā mākete me ngā tono. He ngāwari tonu, ka taea te whakaputa, te werohanga rānei i runga i ngā taputapu hanga thermoplastic tuku iho hei hanga i ngā wāhanga totoka mō ngā hu, te taura me te waea, te ngongo me te ngongo, te kiriata me te pepa, ētahi atu hua ahumahi rānei. Ka taea hoki te whakakotahi hei hanga i ngā whakakikorua kirihou pakari, te tukatuka rānei mā te whakamahi i ngā whakarewa waro hei hanga i ngā kakahu kua whakakikoruatia, ngā paninga tiaki, ngā piri mahi rānei.
He aha te papanga TPU ā-wai?
Ko te papanga TPU āraiwai he kiriuhi paparua-rua, he maha ngā āhuatanga tukatuka TPU.
Kei roto ko te kaha haehae teitei, te ātete wai, me te iti o te tuku makuku. I hangaia mō te tukanga whakapiri papanga. E mōhiotia ana mō tōna ōritetanga, ka puta te polyurethane thermoplastic (TPU) me te copolyester kounga teitei, tino pono, me ngā kiriata manawa ātete wai i roto i te umanga. Ko ngā kiriata me ngā rau TPU maha-whakamahinga me te pakari e whakamahia ana mō te here i te papanga, te ārai wai, me ngā tono pupuri hau, wai rānei. Ko ngā kiriata me ngā rau TPU tino angiangi me te hydrophilic he mea tino pai mō te whakapiri ki ngā papanga. Ka taea e ngā kaihoahoa te hanga i ngā hiato kakahu ātete wai utu-whai hua i roto i te whakapiri kotahi-ki-te-papanga. Ka tukuna e te rauemi he manawa tino pai mō te whakamarie o te kaiwhakamahi. Ka tāpirihia e ngā kiriata me ngā rau kakahu tiaki he ātete ki te wero, te pakū, me te ātete matū ki ngā papanga e piri ana.
Wā tuku: Mei-06-2024