(1)Rauemi Ārai Paowa Kore-Halogen Polyethylene (XLPE) Hononga-Whārite:
Ka hangaia te rauemi whakamahana XLPE mā te whakakotahi i te polyethylene (PE) me te ethylene vinyl acetate (EVA) hei turanga, me ngā tāpiringa maha pērā i ngā mea ārai ahi kore-halogen, ngā hinu whakahinuhinu, ngā antioxidants, me ētahi atu, mā te tukanga whakakotahi me te whakapūtā. I muri i te tukatuka irahiko, ka huri te PE mai i te hanganga ngota raina ki te hanganga toru-ahu, ka huri mai i te rauemi thermoplastic ki te kirihou thermosetting kore-rewa.
He maha ngā painga o ngā taura whakamahana XLPE ki te whakaritea ki te PE kirihou wera noa:
1. He ātete pai ake ki te whakarerekētanga wera, he āhuatanga miihini pai ake i ngā pāmahana teitei, ā, he ātete pai ake ki te pakaru o te ahotea taiao me te koroheketanga wera.
2. Kua whakapakaritia te pumau matū me te ātete whakarewa, kua whakaitihia te rere makariri, ā, kua mau tonu ngā āhuatanga hiko. Ka taea e ngā pāmahana mahi roa te eke ki te 125°C ki te 150°C. I muri i te tukatuka hononga-whiti, ka taea te whakanui ake i te pāmahana ara iahiko poto o te PE ki te 250°C, ka taea ai te kaha kawe iahiko teitei ake mō ngā taura o te matotoru ōrite.
3. He pai rawa atu hoki ngā āhuatanga ā-mīhini, ā-wai, me te ātete-irahiko o ngā taura XLPE, ā, he pai mō ngā momo mahi maha, pērā i te waea ā-roto i roto i ngā taputapu hiko, ngā taura mōtini, ngā taura rama, ngā waea whakahaere tohu ngaohiko iti o ngā motuka, ngā waea tereina, ngā taura raro whenua, ngā taura keri taiao, ngā taura kaipuke, ngā taura 1E-grade mō ngā tipu hiko karihi, ngā taura papu ruku, me ngā taura tuku hiko.
Ko ngā aronga o nāianei o te whanaketanga o ngā rauemi whakamahana XLPE ko ngā rauemi whakamahana taura hiko PE hono-whiti i te ira, ngā rauemi whakamahana hau PE hono-whiti i te ira, me ngā rauemi hipoki polyolefin ātete-mura i te ira.
(2)Rauemi Ārai Polypropylene Hononga-Whārite (XL-PP):
Ko te Polypropylene (PP), he kirihou noa, he māmā, he nui ngā rauemi mata, he iti te utu, he ātete pai ki te waikura matū, he ngāwari ki te hanga, me te hangarua. Heoi, he iti ōna ngoikoretanga pērā i te kaha iti, te ātete wera ngoikore, te nui o te whakahekenga, te ātete ngoki ngoikore, te pakarukaru pāmahana iti, me te ātete ngoikore ki te koroheketanga wera me te hāora. Nā ēnei ngoikoretanga kua whakawhāitihia tōna whakamahinga i roto i ngā tono taura. Kei te mahi ngā kairangahau ki te whakarerekē i ngā rauemi polypropylene hei whakapai ake i tā rātou mahi whānui, ā, kua angitu te polypropylene whakarerekētanga hono-whiti (XL-PP) ki te wikitoria i ēnei ngoikoretanga.
Ka taea e ngā waea hiko XL-PP te tutuki i ngā whakamātautau mura UL VW-1 me ngā paerewa waea 150°C kua whakatauria e te UL. I roto i ngā mahi taura, ka whakaranua te EVA ki te PE, PVC, PP, me ētahi atu rauemi hei whakatika i te mahi a te paparanga hiko taura.
Ko tētahi o ngā ngoikoretanga o te PP honohono-whakawhiti irahiko ko te whakauru i tētahi tauhohenga whakataetae i waenga i te hanganga o ngā rōpū mutunga kore mā roto i ngā tauhohenga whakaheke me ngā tauhohenga honohono-whakawhiti i waenga i ngā ngota whakaoho me ngā rauropi kore utu ngota nui. Kua whakaatuhia e ngā rangahau ko te ōwehenga o te whakahekenga ki ngā tauhohenga honohono-whakawhiti i roto i te hononga-whakawhiti irahiko PP he tata ki te 0.8 ina whakamahia te irahiko gamma. Hei whakatutuki i ngā tauhohenga honohono-whakawhiti whai hua i roto i te PP, me tāpiri ngā kaiwhakatairanga honohono-whakawhiti mō te hononga-whakawhiti irahiko. Hei tāpiri, ko te matotoru honohono-whakawhiti whai hua ka whakawhāitihia e te kaha uru o ngā hihi irahiko i te wā o te irahiko. Ka hua te irahiko ki te whakaputa hau me te huka, he mea pai mō te honohono-whakawhiti o ngā hua angiangi engari ka whakawhāiti i te whakamahinga o ngā taura matotoru-pakiwaitara.
(3) Rauemi Whakamarumaru Whakawhiti-Hononga Ethylene-Vinyl Acetate Copolymer (XL-EVA):
I te pikinga ake o te hiahia mō te haumaru o ngā taura, kua tere te tipu o ngā taura honohono-ātete-mutunga kore-halogen. Ki te whakatauritea ki te PE, ko te EVA, e whakauru ana i ngā monomer vinyl acetate ki roto i te mekameka ngota, he iti ake te tioata, ka hua ake he pai ake te ngāwari, te ātete pānga, te hototahi ki ngā whakakī, me ngā āhuatanga hiri wera. I te nuinga o te wā, ko ngā āhuatanga o te kapia EVA e whakawhirinaki ana ki te ihirangi o ngā monomer vinyl acetate i roto i te mekameka ngota. Ko te nui ake o te ihirangi vinyl acetate ka hua ake te mārama, te ngāwari, me te pakari. He tino pai te hototahi ki ngā whakakī me te kaha ki te honohono-mutunga o te kapia EVA, ka piki haere te rongonui i roto i ngā taura honohono-ātete-mutunga kore-halogen.
Ko te kapia EVA me te ihirangi vinyl acetate tata ki te 12% ki te 24% e whakamahia whānuitia ana i roto i te whakamahana waea me te taura. I roto i ngā tono taura tūturu, ka whakaranua te EVA ki te PE, PVC, PP, me ētahi atu rauemi hei whakatika i te mahi a te paparanga whakamahana taura. Ka taea e ngā wāhanga EVA te whakatairanga i te hononga whakawhiti, te whakapai ake i te mahi taura i muri i te hononga whakawhiti.
(4) Rauemi Whakamarumaru Ethylene-Propylene-Diene Monomer (XL-EPDM) Hononga-Whārite:
He terpolymer te XL-EPDM i hangaia mai i te ethylene, te propylene, me ngā monomer diene kore-honohono, e honoa ana mā te irahiko. Ka whakakotahihia e ngā taura XL-EPDM ngā painga o ngā taura polyolefin-insulated me ngā taura rapa-insulated noa:
1. Ngāwari, pakari, kore e piri i ngā pāmahana tiketike, ātete ki te koroheketanga mō te wā roa, me te ātete ki ngā āhuarangi kino (-60°C ki te 125°C).
2. Te ātete ki te ozone, te ātete ki te UV, te mahi whakamarumaru hiko, me te ātete ki te waikura matū.
3. He ātete ki te hinu me ngā whakarewa, he rite ki te ārai rapa chloroprene whānui. Ka taea te whakaputa mā te whakamahi i ngā taputapu tukatuka wera noa, ā, he iti ake te utu.
He whānuitia ngā whakamahinga o ngā taura whakamahana XL-EPDM, tae atu ki ngā taura hiko ngaohiko iti, ngā taura kaipuke, ngā taura mura waka, ngā taura whakahaere mō ngā pēhi whakamātao, ngā taura pūkoro keri, ngā taputapu keri, me ngā taputapu hauora.
Ko ngā ngoikoretanga matua o ngā taura XL-EPDM ko te ātete ngoikore ki te haehae me te ngoikore o ngā āhuatanga piri me te piri-ā-roto, ka pā pea ki te tukatuka i muri mai.
(5) Rauemi Ārai Rapa Hiraka
He ngāwari, he ātete pai hoki te rapa silicone ki te ozone, te tukunga korona, me te mura, ā, he mea tino pai mō te whakamahana hiko. Ko tōna whakamahinga matua i roto i te umanga hiko ko ngā waea me ngā taura. He tino pai ngā waea me ngā taura rapa silicone mō te whakamahi i roto i ngā taiao pāmahana teitei me te uaua, he roa ake te roa o te ora ki te whakataurite ki ngā taura paerewa. Ko ngā whakamahinga noa ko ngā motuka pāmahana teitei, ngā whakawhiti hiko, ngā whakaputa hiko, ngā taputapu hiko me te hiko, ngā taura mura i roto i ngā waka kawe, me ngā taura hiko me te whakahaere moana.
I tēnei wā, ko ngā taura kua whakamahanatia ki te rapa silicone ka honoa mā te pēhanga hau me te hau wera, te mamaoa pēhanga teitei rānei. Kei te haere tonu te rangahau mō te whakamahi i te hihi irahiko hei hono i te rapa silicone, ahakoa kāore anō kia tino kitea i roto i te umanga taura. Nā ngā whanaketanga hou o te hangarau hono irahiko, he iti ake te utu, he pai ake, he pai hoki mō te taiao hei whakakapi i ngā rauemi whakamahana rapa silicone. Mā te hihi irahiko, mā ētahi atu pūtake hihi rānei, ka taea te hono pai i te whakamahana rapa silicone, me te whakahaere i te hohonutanga me te nui o te hono kia tutuki ai ngā whakaritenga tono motuhake.
Nō reira, he mea nui te whakamahinga o te hangarau hononga-whakawhiti irahiko mō ngā rauemi whakamahana rapa silicone i roto i te umanga waea me te taura. E matapaetia ana ka whakaitihia e tēnei hangarau ngā utu whakaputa, ka whakapai ake i te pai o te whakaputa, ā, ka whai wāhi ki te whakaiti i ngā pānga kino ki te taiao. Tērā pea mā ngā mahi rangahau me te whanaketanga a meake nei ka akiaki ake i te whakamahinga o te hangarau hononga-whakawhiti irahiko mō ngā rauemi whakamahana rapa silicone, ka whānui ake te whakamahinga mō te hanga waea me ngā taura pāmahana teitei, mahi teitei i roto i te umanga hiko. Mā tēnei ka whakaratohia he otinga pono ake, he roa ake hoki mō ngā momo tono.
Wā tuku: Hepetema-28-2023