Ko te Polyvinyl chloride (PVC) he pūmua i hangaia mā te whakapūmuatanga o te vinyl chloride monomer (VCM) i te aroaro o ngā mea whakaoho pērā i ngā peroxides me ngā matū azo, mā te tikanga whakapūmuatanga rānei o ngā rauropi kore utu i raro i te mahi a te mārama, te wera rānei. Ko te PVC he rauemi pūmua e whakamahi ana i te ngota chlorine hei whakakapi i te ngota hauwai i roto i te polyethylene, ā, ko ngā homopolymers vinyl chloride me ngā copolymers vinyl chloride e kiia ana ko ngā kapia vinyl chloride.
Kei roto i ngā mekameka ngota PVC ngā ngota chlorine tino pōrohe me ngā kaha waenga-ngota teitei, e whakamārō ake ai, e whakapakeke ake ai, e pakari ake ai, e ora ake ai hoki ngā hua PVC, ā, he tino ātete mura (ko te ātete mura e pā ana ki te āhuatanga o tētahi matū, o tētahi rauemi rānei i muri i te maimoatanga hei whakaroa i te horapa o te mura); heoi, he nui ake ngā uara o tōna pūmau dielectric me ōna uara koki ngaronga dielectric i ērā o te PE.
He iti noa ngā hononga takirua, ngā mekameka peka me ngā toenga tīmatanga kei roto i te kapia PVC e toe ana i roto i te tauhohenga polymerization, me ngā ngota chlorine me te hauwai i waenganui i ngā ngota waro e rua e tata ana, e ngāwari ana te tango chlorine, ka hua ake he tauhohenga pirau ngāwari o te PVC i raro i te mahi a te mārama me te wera. Nō reira, me tāpirihia ngā mea whakaū wera ki ngā hua PVC, pērā i te whakaū wera konupūmā-konutea, te whakaū wera barium-konutea, te whakaū wera tote mata, te whakaū tine waro, me ētahi atu.
Ngā tono matua
He rerekē ngā āhua o te PVC, ā, ka taea te tukatuka i roto i ngā momo huarahi, tae atu ki te pēhi, te whakaputa, te werohanga, me te paninga. He mea noa te whakamahi i ngā kirihou PVC i roto i te hanga kiriata, te hiako horihori, te whakamahana o ngā waea me ngā taura, ngā hua pakari, ngā papa, ngā taonga whare, ngā taputapu hākinakina, me ētahi atu.
E toru ngā wāhanga o ngā hua PVC: he pakari, he āhua pakari, he ngawari. Ko ngā hua pakari me ngā āhua pakari ka tukatukahia me te kore, me te iti rānei o te plasticizer, ko ngā hua ngawari ka tukatukahia me te nui o te plasticizer. I muri i te tāpiri i ngā plasticizer, ka taea te whakaheke i te pāmahana whakawhiti karāhe, ka māmā ake te tukatuka i te pāmahana iti ake, ka whakanui ake i te ngāwari me te kirihou o te mekameka ngota, ā, ka taea te hanga hua ngawari he ngāwari i te pāmahana rūma.
1. Ngā kōtaha PVC
E whakamahia ana mō te hanga tatau me ngā matapihi me ngā rauemi penapena pūngao.
2. Ngā paipa PVC
He maha ngā momo paipa PVC, he pai te mahi me te whānuitanga o te whakamahinga, ā, he mea nui te tūranga o ēnei i te mākete.
3. Ngā kiriata PVC
Ka taea te hanga i te PVC hei kiriata mārama, hei kiriata tae rānei, he matotoru kua tohua mā te whakamahi i te maramataka, ā, ko te kiriata i hangaia mā tēnei tikanga ka kiia ko te kiriata maramataka. Ka taea hoki te pupuhi i ngā rauemi mata o te PVC hei kiriata mā te whakamahi i ngā mīhini pupuhi, ā, ko te kiriata i hangaia mā tēnei tikanga ka kiia ko te kiriata pupuhi. He maha ngā kaupapa ka taea te whakamahi i te kiriata, ā, ka taea te tukatuka hei putea, hei koti ua, hei tauera tēpu, hei ārai, hei taonga tākaro pupuhi, me ētahi atu mā te tapahi me te hiri wera. Ka taea te whakamahi i ngā kiriata whānui mārama hei hanga whare kati kōtuhi me ngā whare kati kōtuhi kirihou, hei whakamahi rānei hei kiriata papa.
4. Papa PVC
I tāpirihia ki te whakau, te hinu whakahinuhinu me te whakakī, ā, i muri i te whakaranu, ka taea te whakaputa i te PVC ki roto i ngā paipa mārō rerekē, ngā paipa āhua me ngā paipa kōpikopiko me te extruder, ā, ka whakamahia hei paipa heke, hei paipa wai inu, hei anga waea hiko, hei arai arawhata rānei. Ka taupokina ngā pepa kua whakaritea, ka pēhia ki te wera hei hanga pepa mārō o ngā matotoru rerekē. Ka taea te tapahi i ngā pepa ki ngā āhua e hiahiatia ana, kātahi ka whakarewahia ki te hau wera mā te whakamahi i ngā tokotoko whakarewa PVC ki roto i ngā tāke rokiroki, ngā awaawa me ngā ipu ātete matū, me ētahi atu.
5. Ngā hua ngohengohe PVC
Mā te whakamahi i te extruder, ka taea te extrude ki roto i ngā ngongo, taura, waea, me ētahi atu; mā te whakamahi i te mīhini werohanga me ngā momo pokepoke, ka taea te hanga hei hu kirihou, kapu hu, hu reti, taonga takaro, wāhanga motuka, me ētahi atu.
6. Ngā rauemi takai PVC
Ko ngā hua PVC mō te takai he maha ngā momo ipu, kiriata me te pepa mārō. Ko ngā ipu PVC he mea hanga mō te wai kohuke, ngā inu, ngā pounamu whakapaipai, tae atu ki ngā takai hinu kua parakore.
7. Papa me te papa PVC
Ko te papa PVC te nuinga o te wā e whakamahia ana hei whakakapi i te papa konumohe, ngā taera papa PVC, engari ko tētahi wāhanga o te kapia PVC anake, ko ngā wāhanga toenga he rauemi hangarua, he piripiri, he whakakī me ētahi atu wāhanga, e whakamahia ana i te papa o te taunga rererangi me ētahi atu wāhi o te whenua mārō.
8. Ngā hua kaihoko PVC
Ka kitea ngā hua PVC i ngā wāhi katoa o tō tātou oranga o ia rā. Ka whakamahia te PVC hei hanga i ngā hiako horihori mō ngā putea tueke, ngā hua hākinakina pēnei i te poitūkohu, ngā pōro whutupaoro me ngā pōro whutupōro. Ka whakamahia hoki hei hanga i ngā kākahu me ngā whitiki tiaki motuhake. Ko ngā papanga PVC mō ngā kākahu he papanga mimiti (kāore e hiahiatia he paninga) pēnei i ngā poncho, ngā tarau pēpi, ngā koti hiako horihori me ngā pūtu ua. Ka whakamahia hoki te PVC i roto i te maha o ngā hua hākinakina me ngā whakangahau pēnei i ngā taonga takaro, ngā rekoata me ngā taonga hākinakina.
Te wā tuku: Hōngongoi-19-2023