1. Liyini ishidi le-PVC eliqinile?
Igama eliphelele leshidi eliqinile le-PVC yishidi eliqinile le-polyvinyl chloride. Ishidi le-PVC eliqinile liyi-polymer eyenziwe nge-vinyl chloride njengezinto zokusetshenziswa, eneziqinisi, izinto zokugcoba kanye nezigcwalisi ezengeziwe. Ine-antioxidant ephezulu kakhulu, i-asidi enamandla kanye nokumelana nokunciphisa, amandla aphezulu, ukuzinza okuhle kakhulu kanye nokungashi, futhi ingamelana nokugqwala okubangelwa ukushintsha kwesimo sezulu. Amashidi aqinile e-PVC avamile afaka amashidi e-PVC abonakalayo, amashidi amhlophe e-PVC, amashidi amnyama e-PVC, amashidi e-PVC anombala, amashidi e-PVC ampunga, njll.
2. Iyini inzuzo yeshidi le-PVC eliqinile?
Amashidi e-PVC aqinile anezinzuzo eziningi njengokumelana nokugqwala, ukungashi, ukufudumala, kanye nokumelana nokushiswa. Ngaphezu kwalokho, angacutshungulwa kabusha futhi abe nezindleko eziphansi zokukhiqiza. Ngenxa yokusetshenziswa kwawo okubanzi kanye namanani angabizi, abelokhu eyingxenye yemakethe yamashidi epulasitiki. Njengamanje, ubuchwepheshe bokuthuthukisa nokuklama bezwe lethu bamashidi e-PVC bufinyelele ezingeni eliphambili lomhlaba wonke.
3. Lisetshenziswa kanjani ishidi le-PVC?
Amashidi e-PVC aguquguquka kakhulu, futhi kunezinhlobo ezahlukene zamashidi e-PVC, njengamashidi e-PVC abonakalayo, amashidi e-PVC aqandisiwe, amashidi e-PVC aluhlaza, ama-roll amashidi e-PVC, njll. Ngenxa yokusebenza kwawo okuhle kokucubungula, izindleko zokukhiqiza eziphansi, ukumelana nokugqwala kanye nokushisa. Amashidi e-PVC asetshenziswa kabanzi futhi asetshenziswa kakhulu ukukhiqiza: izembozo zokubopha ze-PVC, amakhadi e-PVC, amafilimu aqinile e-PVC, amashidi e-PVC aqinile, njll.
4. Iyini inkinga yeshidi le-PVC?
Ishidi le-PVC nalo liyipulasitiki esetshenziswa kakhulu. Liyi-resin eyakhiwe yi-polyvinyl chloride resin, i-plasticizer, kanye ne-antioxidant. Alinawo ubuthi ngokwalo. Kodwa izinto eziyinhloko ezisizayo njenge-plasticizers kanye nama-antioxidants zinobuthi. Ama-plasticizers kuma-PVC sheet plastics asebenzisa kakhulu i-dibutyl terephthalate kanye ne-dioctyl phthalate. Lawa makhemikhali anobuthi. I-antioxidant lead stearate esetshenziswa ku-PVC nayo inobuthi. Amashidi e-PVC aqukethe usawoti we-lead, ama-antioxidants, azobangela i-lead uma ehlangana nezinyibilikisi ezifana ne-ethanol kanye ne-ether. Amashidi e-PVC aqukethe i-lead asetshenziselwa ukupakisha ukudla. Uma ehlangana nezinti zenhlama ethosiwe, amakhekhe athosiwe, izinhlanzi ezithosiwe, imikhiqizo yenyama ephekiwe, ama-pastry kanye nokudla okulula, njll., ama-molecule e-lead azosakazeka emafutheni. Ngakho-ke, izikhwama zepulasitiki ze-PVC azikwazi ukusetshenziselwa ukubamba ukudla, ikakhulukazi uwoyela oqukethe ukudla. Ngaphezu kwalokho, imikhiqizo yepulasitiki ye-polyvinyl chloride izobola kancane kancane igesi ye-hydrogen chloride emazingeni okushisa aphezulu, njengo-50°C, okuyingozi emzimbeni womuntu.
