Ko te polyvinyl chloride tētahi o ngā kirihou whānui matua e rima o te ao. Nā te iti o te utu whakaputa ki te polyethylene me ētahi konganuku, me tōna mahi tukatuka pai me ngā āhuatanga ā-tinana me te matū o ngā hua, ka taea e ia te whakatutuki i ngā hiahia o te whakarite i ngā āhuatanga pakeke ki te ngohengohe, te rapa, te muka, te paninga me ētahi atu āhuatanga, ā, he whānui te whakamahinga i roto i ngā mara maha pēnei i te ahumahi, te ahuwhenua, me te hanga. He mea tino nui te hangarua me te whakamahi i ngā para polyvinyl chloride.
1. Whakaora anō
Tuatahi, ka taea te mahi whakaora tika. Ko te whakaora tika o ngā kirihou para e pā ana ki te tukatuka tika me te whakahāngai i ngā kirihou para mā te horoi, te kuru, me te whakahāngai kirihou me te kore e hiahiatia he whakarerekētanga, te tukatuka me te whakahāngai rānei i ngā hua mā te whakapūkara. Hei tāpiri, ka taea hoki te whakarerekē me te whakaora. Ko te whakarerekētanga me te whakaora o ngā kirihou tawhito e pā ana ki te whakarerekētanga ā-tinana me te matū o ngā kirihou hangarua i mua i te tukatuka me te hanga. Ka taea te wehewehe i te whakarerekētanga ki te whakarerekētanga ā-tinana me te whakarerekētanga matū. Ko te whakakī, te whakakotahi muka, me te whakakotahi whakapakeke ngā huarahi matua o te whakarerekētanga ā-tinana o te PVC. Ko te whakarerekētanga whakakī e pā ana ki te tikanga whakarerekētanga o te whakaranu ōrite i ngā whakarerekētanga whakakī matūriki me te modulus teitei ake i roto i ngā polymer. Ko te whakarerekētanga whakapakari muka whakakotahi e pā ana ki te tikanga whakarerekētanga o te tāpiri i te modulus teitei me ngā muka taiao, muka horihori rānei kaha teitei ki roto i te polymer, kia tino whakapai ake ai i ngā āhuatanga miihini o te hua. Ka tutuki te whakarerekētanga matū o te PVC mā te whakarerekē i te hanganga o te PVC mā roto i ētahi tauhohenga matū.
2. Te tango me te whakamahi i te hauwai pūhaumāota
Kei roto i te PVC te 59% o te haurore. Kāore i rite ki ētahi atu pūmua mekameka waro, ka whati te mekameka peka o te PVC i mua i te mekameka matua i te wā e pakaru ana, ka puta he nui o te hau hauwai pūhaumāota, ka waikura i ngā taputapu, ka paitini i te paitini Catalyst, ā, ka pā ki te kounga o ngā hua pakaru. Nō reira, me mahi te maimoatanga tango hauwai pūhaumāota i te wā e pakaru ana te PVC.
3. Te tahu i te PVC hei whakamahi i te wera me te hau māota
Mō ngā kirihou para kei roto ko te PVC, ko te āhuatanga o te whakaputa wera nui ka whakamahia whānuitia hei whakaranu i a rātou ki ngā momo para mura, hei whakaputa wahie totoka me te rahi matūriki ōrite. Ehara i te mea ka ngāwari noa te rokiroki me te kawe, engari ka whakakapia hoki te wahie e whakamahia ana i roto i ngā kohua waro me ngā oumu ahumahi, ā, ka whakawaiwai i te chlorine hei whakapai ake i te pai o te wera.
Wā tuku: Hurae-21-2023
