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. Yiziphi izinzuzo zeshidi 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. Ishidi le-PVC lisetshenziselwani?
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. Yiziphi izinkinga zeshidi 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.
5. Ingabe Ukudla Okusemashidini e-PVC Kuphephile?
Ishidi le-PVC lingaphephile ekudleni, kodwa kuphela uma likhiqizwa kusetshenziswa izinto ze-PVC ezisezingeni lokudla kanye nezithasiselo ezihambisanayo. Amashidi e-PVC asezingeni lokudla awanobuthi, awanaphunga, futhi afaneleka ukuthintana nokudla okungaqondile noma okuqondile, kuye ngokwakhiwa nokusetshenziswa.
Amashidi e-PVC aphephile ekudleni asetshenziswa kabanzi ekupakisheni kokudla, ekupakisheni ama-blister, kumafilimu okunamathela, kumathileyi okudla, nasezimbozweni zokuvikela. Anikeza ukumelana okuhle kwamakhemikhali, ukucaca, kanye nezakhiwo zokuvimbela, okwenza afaneleke ezinhlelweni eziningi ezihlobene nokudla.
Kodwa-ke, akuwona wonke amashidi e-PVC aphephile ekudleni. Amashidi e-PVC asezingeni lezimboni angase abe nama-plasticizer noma izithasiselo ezingavunyelwe ukuthintana nokudla. Ukuqinisekisa ukuphepha, qinisekisa njalo ukuthi ishidi le-PVC lihlangabezana nemithethonqubo yokuxhumana nokudla ye-FDA, EU (EC), bese ucela izitifiketi zokuphepha kwezinto ezivela kumenzi.
6.Ingabe i-PVC Sheet Flame iyayivimbela?
Yebo, ishidi le-PVC liyisithiyo somlilo ngokwemvelo uma liqhathaniswa nezinye izinto eziningi zepulasitiki. Ngenxa yokuqukethwe kwalo okuphezulu kwe-chlorine, i-PVC iyazicisha uma umthombo womlilo wangaphandle usususiwe, okunciphisa kakhulu ukusabalala komlilo.
Amashidi e-PVC avame ukusetshenziswa ezindaweni lapho ukuphepha komlilo kubalulekile, njengezinto zokwakha, amaphaneli odonga, ukufakelwa kukagesi, izimpawu, kanye nezindawo zokuvala zezimboni. Ezimweni eziningi, amashidi e-PVC angahlangabezana nezindinganiso zomhlaba wonke zokuvimbela umlilo njenge-UL94 V-0 / V-1 noma okulinganayo, kuye ngokuthi kusetshenzisweni.
Kumaphrojekthi anezidingo eziqinile zokuphepha komlilo, amashidi e-PVC avimbela umlilo anokusebenza okuthuthukisiwe angenziwa ngezifiso ukuze ahlangabezane namakhodi okwakha athile kanye nezindinganiso zokumelana nomlilo.
