(1) CPE
Ko te polyethylene chlorinated (CPE) he paura hua o te chlorination i whakatārewatia o te HDPE i roto i te wāhanga wai. I te pikinga ake o te tohu chlorination, ka huri haere te HDPE tioata tuatahi hei elastomer amorphous. Ko te CPE e whakamahia ana hei kaihoko whakapakari he 25-45% te nui o te chlorine. He whānuitia ngā pūtake o te CPE me ngā utu iti. Haunga tōna pānga whakapakari, he ātete makariri, he ātete huarere, he ātete mura, me te ātete matū. I tēnei wā, ko te CPE te whakarerekētanga pānga matua i Haina, inā koa i roto i te hanga paipa me ngā kōtaha PVC, ā, ko te nuinga o ngā wheketere e whakamahi ana i te CPE. Ko te nui o te tāpiri he 5-15 wāhanga. Ka taea te whakamahi i te CPE me ētahi atu kaihoko whakapakari, pērā i te rapa me te EVA, kia pai ake ai ngā hua, engari kāore ngā tāpiri rapa e ātete ki te koroheketanga.
(2) ACR
Ko te ACR he copolymer o ngā monomers pērā i te methyl methacrylate me te acrylic ester. Koinei te whakarerekētanga pānga pai rawa atu i whakawhanakehia i ngā tau tata nei, ā, ka taea te whakanui ake i te kaha pānga o ngā rauemi mā te maha o ngā wā. Kei roto te ACR i te whakarerekētanga pānga o te hanganga anga-matua, he anga i hangaia mai i te methyl methacrylate ethyl acrylate polymer, me te rapa elastomer i hangaia mā te hononga whakawhiti me te butyl acrylate hei wāhanga mekameka matua kua tohatohahia ki te paparanga o roto o ngā matūriki. He tino pai mō te whakarerekētanga pānga o ngā hua kirihou PVC mō te whakamahinga o waho, ko te whakamahi i te ACR hei whakarerekētanga pānga i roto i ngā kōtaha tatau me ngā matapihi kirihou PVC he āhuatanga o te mahi tukatuka pai, te mata maeneene, te ātete pai ki te koroheketanga, me te kaha o te kokonga whakarewa teitei ki te whakataurite ki ētahi atu whakarerekētanga, engari ko te utu he tata ki te kotahi-hautoru teitei ake i te CPE.
(3) MBS
He copolymer te MBS o ngā monomers e toru: te methyl methacrylate, te butadiene, me te styrene. Ko te tawhā wairewa o te MBS kei waenganui i te 94 me te 9.5, e tata ana ki te tawhā wairewa o te PVC. Nō reira, he pai te hototahi ki te PVC. Ko tōna āhuatanga nui ko te mea i muri i te tāpiri i te PVC, ka taea te hanga hei hua mārama. I te nuinga o te wā, mā te tāpiri i te 10-17 wāhanga ki te PVC ka taea te whakanui ake i tōna kaha pānga mā te 6-15 ngā wā. Heoi, ina neke atu i te 30 wāhanga te nui o te MBS i tāpirihia, ka heke te kaha pānga o te PVC. He pai te mahi pānga o te MBS, he pai te mārama, ā, he neke atu i te 90% te kaha whakawhiti. Ahakoa te whakapai ake i te mahi pānga, he iti noa te pānga ki ētahi atu āhuatanga o te kapia, pērā i te kaha kume me te roa i te wā whati. He utu nui te MBS, ā, he maha ngā wā ka whakamahia ngātahi me ētahi atu whakarerekētanga pānga pērā i te EAV, CPE, SBS, me ētahi atu. He iti te ātete o te MBS ki te wera me te ātete ki te huarere, ā, kāore e pai mō te whakamahinga o waho mō te wā roa. Kāore i te whakamahia whānuitia hei whakarerekētanga pānga i roto i te hanga i ngā kōtaha tatau me ngā matapihi kirihou.
(4) SBS
Ko te SBS he poraka takirua takirua o te styrene, te butadiene, me te styrene, e mōhiotia ana ko te rapa styrene butadiene thermoplastic. Nō roto i ngā elastomers thermoplastic, ā, e rua ngā momo o tōna hanganga: he āhua whetu, he āhua rārangi. Ko te ōwehenga o te styrene ki te butadiene i roto i te SBS ko te 30/70, 40/60, 28/72, me te 48/52. E whakamahia ana hei whakarerekē pānga mō te HDPE, PP, me te PS, me te horopeta o te 5-15 wāhanga. Ko te mahi matua a te SBS ko te whakapai ake i tōna ātete pānga ki te pāmahana iti. He ngoikore te ātete o te SBS ki te huarere, ā, kāore e pai mō ngā hua whakamahi waho mō te wā roa.
(5) ABS
Ko te ABS he copolymer toru o te styrene (40% -50%), te butadiene (25% -30%), me te acrylonitrile (25% -30%), e whakamahia ana hei kirihou hangarau, ā, e whakamahia ana hoki mō te whakarerekētanga pānga PVC, me ngā pānga whakarerekētanga pānga pāmahana iti pai. Ina tae te nui o te ABS i tāpirihia ki te 50 wāhanga, ka taea e te kaha pānga o te PVC te ōrite ki te ABS parakore. Ko te nui o te ABS i tāpirihia he 5-20 wāhanga. He ngoikore te ātete o te ABS ki te huarere, ā, kāore e pai mō te whakamahinga roa o waho i roto i ngā hua. Kāore i te whakamahia hei whakarerekētanga pānga i roto i te hanga o ngā kōtaha tatau me ngā matapihi kirihou.
(6) EVA
He copolymer te EVA o te ethylene me te vinyl acetate, ā, mā te whakaurunga o te vinyl acetate ka rerekē te tioata o te polyethylene. He rerekē te nui o te vinyl acetate, ā, he rerekē te taupū whakaata o te EVA me te PVC, ā, he uaua ki te whiwhi hua mārama. Nō reira, he maha ngā wā ka whakamahia te EVA me ētahi atu kapia ātete pānga. Ko te nui o te EVA e tāpirihia ana he iti iho i te 10 ngā wāhanga.
Wā tuku: Maehe-15-2024
