Kei te tino puta te kakahu rewa! Me whai tātou i tekaihanga kakahu rewakia mārama:
I ahu mai te hangarau papanga Meltblown i te tekau tau atu i 1950, i te wā i whakawhanakehia ai e te United States ngā rauemi tātari tino pai ki te kohikohi i ngā matūriki irahiko i te hau o runga, ā, i raro i te mahi a te pāmahana me te rere o te hau, ka hangaia he āhua rewa o te polymer, ka whakaputa tika i te hangarau papanga kore-whatu.
Ka whakakotahihia e tēnei hangarau te hangarau tukatuka rauemi polymer o te umanga matū me te hangarau hanga rauemi kore-whatu o te umanga kakahu, ka hangaia he hangarau hou i roto i te mara o te pūtaiao rauemi hei hanga rauemi tātari kore-whatu matū hou, whai hua hoki.
Ko te rauemi mata o te kakahu rehu rewa he polypropylene me te taupū rewa teitei.
Ka teitei ake te taupū rewa o te polypropylene, ka angiangi ake te muka, ā, ka pai ake te āheinga tātari o te kakahu i rehuhia ki te rewa.
He pūhui te polypropylene i hangaia mā te tāpiri i te propylene. He mā te ware pi, he mārama, he māmā te āhua. Ko te matotoru he 0.89 ~ 0.91g/cm3, he mura, ko te ira rewa he 165℃, ka ngawari i te 155℃, ā, ko te awhe pāmahana he -30 ~ 140℃.
I raro i te 80 ℃ ka taea te ātete ki te waikawa, te kawakore, te tote me te maha o ngā wairewa waro, ka taea te pirau i raro i te pāmahana teitei me te waikura. He whānuitia te whakamahinga o te polypropylene i roto i ngā kākahu, ngā paraikete me ētahi atu hua muka, ngā taputapu hauora, ngā motuka, ngā pahikara, ngā wāhanga e manawapa ana, ngā paipa kawe, ngā ipu matū me ētahi atu mahi whakaputa, ā, ka whakamahia hoki i roto i te kai, te takai rongoā.
He wheketere rehu rewa mātou, ko ngā hua ko:KF94 rewa-pūpū,BFE99 rewa-pūpū,pupuhi pp rewa,n95 i pupuhihia kia rewa;Kaua e mangere ki te whakapiri mai ki a mātou mō te utu hou ~
Wā tuku: Whiringa-ā-rangi 14-2020