I te rapu i ngā taura me ngā waea pai rawa atu, he mea nui te whiriwhiri i te rauemi hipoki tika. He maha ngā mahi a te hipoki o waho hei whakarite i te roa, te haumaru me te mahi a te taura, te waea rānei. Ehara i te mea onge te whakatau i waenga i te polyurethane (PUR) me tepūhaumāota polyvinyl (PVC)I roto i tēnei tuhinga, ka ako koe mō ngā rerekētanga mahi i waenga i ngā rauemi e rua me ngā tono e tino pai ana mō ia rauemi.
Te hanganga me te mahi o te hipoki i roto i ngā taura me ngā waea
Ko te hipoki (e kiia ana hoki ko te hipoki o waho) ko te paparanga o waho rawa o te taura, o te waea rānei, ā, ka whakamahia mā te whakamahi i tētahi o ngā tikanga whakaputa. Ka tiakina e te hipoki ngā kaiārahi taura me ētahi atu wāhanga hanganga mai i ngā āhuatanga o waho pērā i te wera, te makariri, te mākū, te matū me ngā awe ā-pūkaha. Ka taea hoki e ia te whakatika i te āhua me te āhua o te kaiārahi kua takai, me te paparanga ārai (mēnā kei reira), kia iti ai te pokanoa ki te hototahi hikohiko (EMC) o te taura. He mea nui tēnei kia rite ai te tuku hiko, te tohu, ngā raraunga rānei i roto i te taura, i te waea rānei. He mea nui anō hoki te hipoki ki te roa o te mau o ngā taura me ngā waea.
He mea nui te whiriwhiri i te rauemi hipoki tika hei whakatau i te taura pai rawa atu mō ia whakamahinga. Nō reira, he mea nui kia mōhio pū ki te kaupapa me mahi e te taura, e te waea rānei, me ngā whakaritenga me tutuki.
Ko te rauemi hipoki tino noa
Ko te Polyurethane (PUR) me te polyvinyl chloride (PVC) ngā rauemi hipoki e rua e whakamahia whānuitia ana mō ngā taura me ngā waea. Kāore he rerekētanga i waenganui i ēnei rauemi ina tirohia, engari he rerekē ngā āhuatanga e pai ai mō ngā tono rerekē. Hei tāpiri, he maha atu anō ngā rauemi ka taea te whakamahi hei rauemi hipoki, tae atu ki te rapa arumoni, ngā elastomers thermoplastic (TPE), me ngā matū kirihou motuhake. Heoi, nā te mea he iti ake te kitea i te PUR me te PVC, ka whakatauritea e mātou ēnei e rua ā muri ake nei.
PUR – Te āhuatanga tino nui
Ko te Polyurethane (PUR rānei) e pā ana ki tētahi rōpū kirihou i whakawhanakehia i te mutunga o te tekau tau atu i 1930. Ka hangaia mā te tukanga matū e kiia nei ko te addition polymerization. Ko te hinu te rauemi mata i te nuinga o te wā, engari ka taea hoki te whakamahi i ngā rauemi tipu pēnei i te rīwai, te kānga, te pīti huka rānei i roto i tōna hanga. He elastomer thermoplastic te Polyurethane. Ko te tikanga he ngāwari ina werahia, engari ka taea te hoki ki tōna āhua taketake ina werahia.
He tino pai ngā āhuatanga miihini o te polyurethane. He tino pai te ātete o te rauemi ki te kakahu, ki te tapahi me te haehae, ā, he tino ngāwari tonu ahakoa i ngā pāmahana iti. Nā tēnei ka tino pai te PUR mō ngā tono e hiahia ana ki te nekehanga hihiri me ngā whakaritenga piko, pērā i ngā mekameka tō. I roto i ngā tono karetao, ka taea e ngā taura me te uhi PUR te tu atu i ngā miriona huringa piko, i ngā kaha hurihuri kaha rānei, me te kore raruraru. He kaha hoki te ātete o te PUR ki te hinu, ki ngā whakarewa me te hihi ultraviolet. Hei tāpiri, i runga i te hanganga o te rauemi, he kore halogen, he ātete mura hoki, he paearu nui ēnei mō ngā taura kua whai tiwhikete UL me te whakamahia i te United States. He mea noa te whakamahi i ngā taura PUR i roto i te hanga mīhini me te wheketere, te aunoatanga ahumahi, me te umanga motuka.
PVC - te āhuatanga matua
Ko te polyvinyl chloride (PVC) he kirihou kua whakamahia hei hanga i ngā hua rerekē mai i te tekau tau atu i 1920. Ko te hua o te polymerization mekameka hau o te vinyl chloride. He rerekē ki te elastomer PUR, he polymer thermoplastic te PVC. Mena ka whakapōturitia te rauemi i raro i te wera, kāore e taea te whakahoki ki tōna āhua taketake.
Hei rauemi hipoki, he maha ngā huarahi e taea ai e te polyvinyl chloride te urutau ki ngā hiahia rerekē mā te whakarerekē i tōna ōwehenga hanganga. Kāore tōna kaha kawenga miihini i te teitei ake i te PUR, engari he nui ake te ōhanga o te PVC; e whā ngā wā teitei ake te utu toharite o te polyurethane. Hei tāpiri, kāore he kakara o te PVC, ā, he ātete ki te wai, te waikawa me ngā kaihoko horoi. Nā konei i whakamahia pinepine ai i roto i te umanga kai, i ngā taiao makuku rānei. Heoi, ehara te PVC i te mea kāore he halogen, koia i kiia ai kāore e pai mō ngā tono motuhake o roto. Hei tāpiri, ehara i te mea he ātete ki te hinu, engari ka taea te whakatutuki i tēnei āhuatanga mā te whakamahi i ngā tāpiringa matū motuhake.
Whakamutunga
He pai, he huakore hoki ngā polyurethane me ngā polyvinyl chloride hei rauemi hipoki taura me te waea. Kāore he whakautu tino tika mō te rauemi pai rawa atu mō ia tono; he nui te whakawhirinaki ki ngā hiahia takitahi o te tono. I ētahi wā, he pai ake pea te whakamahi i tētahi rauemi hipoki tino rerekē. Nō reira, ka akiaki mātou i ngā kaiwhakamahi ki te rapu tohutohu mai i ngā tohunga e mōhio ana ki ngā āhuatanga pai me ngā āhuatanga kino o ngā rauemi rerekē, ā, ka taea te paunatia tetahi ki tetahi.
Wā tuku: Whiringa-ā-rangi 20-2024