Wake wazibuza ukuthi lelo khethini leshawa le-PVC elicwebezelayo limelana kanjani neminyaka eminingi yomusi nokukhanya kwelanga ngaphandle kokuqhekeka noma ukufiphala? Noma ukuthi ifilimu yokudla ekhanyayo igcina kanjani ukudla kwakho kusha ngenkathi igcina ukubukeka kwayo okucwebezelayo? Imfihlo isesithako esibalulekile kodwa esivame ukunganakwa:Iziqinisi ze-PVC. Emkhakheni wokukhiqiza amafilimu ahlelwe ngekhalenda, lezi zithasiselo ziyizakhiwo ezithule eziguqula i-polyvinyl chloride (PVC) evamile ibe izinto ezisebenza kahle kakhulu. Ake sihlubule izendlalelo futhi sihlole indima yazo ebalulekile kule nqubo.
Izisekelo Zamafilimu Ahlelwe Ngekhalenda kanye Nokungakwazi Ukulungisa Ama-PVC
Amafilimu ahlelwe ngekhalenda akhiqizwa ngokudlulisa inhlanganisela ye-PVC efudumele ochungechungeni lwama-roller, ayilula futhi ayibumbe ibe yishidi elincane, elifanayo. Le nqubo isetshenziswa kabanzi ukudala imikhiqizo efana nezinto zokupakisha, izembozo zezimboni, namafilimu okuhlobisa ngenxa yokusebenza kahle kwayo kanye nekhono lokukhiqiza ukuqina okuhambisanayo. Kodwa-ke, i-PVC inesithende se-Achilles: isakhiwo sayo sama-molecule siqukethe ama-athomu e-chlorine angazinzile ayenza ibe sengozini enkulu yokuwohloka lapho ivezwa ekushiseni, ekukhanyeni, nasemoyeni.
Ngesikhathi senqubo yokucubungula ikhalenda, i-PVC ifakwa emazingeni okushisa aphezulu (kusukela ku-160°C kuya ku-200°C) ukuqinisekisa ukuncibilika nokuma kahle. Ngaphandle kokuvikelwa, izinto ziwohloka ngokushesha, zikhiphe i-hydrochloric acid (HCl) futhi zibangele ukushintsha kombala, ukuqhekeka, kanye nokulahlekelwa yizakhiwo zemishini. Yilapho iziqinisi ze-PVC zingena khona njengenkinga enkulu - izixazululi.
Izindima Ezihlukahlukene Zeziqinisi Ze-PVC Ekukhiqizweni Kwamafilimu Ahlelwe Ngekhalenda
1. Isivikelo Sokushisa: Ukulondoloza Ubuqotho Ngesikhathi Sokucubungula
Umsebenzi oyinhloko weziqinisi ze-PVC ekubhaleni ikhalenda ukuvikela izinto ekuwohlokeni kokushisa. Ukuvezwa kwezinga lokushisa eliphezulu ngesikhathi senqubo yokucindezela i-roller kungabangela ukusabela kweketanga ku-PVC, okuholela ekwakhekeni kwezibopho ezimbili ezihlanganisiwe eziphendula izinto zibe phuzi noma zibe nsundu. Iziqinisi zisebenza ngokuthi:
Ukumunca i-Hydrochloric Acid:Zisabela nge-HCl ekhishwa ngesikhathi sokubola kwe-PVC, ziyivimbela ekubangeleni ukuwohloka okuqhubekayo. Isibonelo, iziqinisi ezisekelwe ensimbini ezifanai-calcium - i-zinc or i-barium - i-zincAma-complexes abamba ama-molecule e-HCl, anciphise imiphumela yawo eyingozi.
Ukushintsha Ama-Athomu E-Chlorine Angazinzile:Izakhi ezisebenzayo zeziqinisi, njenge-ion zensimbi, zithatha indawo yama-athomu e-chlorine abuthakathaka ochungechungeni lwe-PVC, okudala isakhiwo sama-molecule esizinzile kakhulu. Lokhu kwandisa kakhulu isikhathi sokuphila kwento eshisayo ngesikhathi senqubo yokulinganisa ukushisa okuphezulu.
2.Umgcini Wemibala: Ukugcina Ukubukeka Kobuhle
Ezinhlelweni lapho ukucaca kokubona kubalulekile—njengokupakishwa kokudla noma amakhethini asobala—ukuzinza kombala akuxoxiswana ngakho. Iziqinisi ze-PVC zidlala indima ebalulekile ekuvimbeleni ukubola kombala:
Isenzo Sokulwa No ...Ezinye izinto eziqinisa imvelo, ikakhulukazi lezo eziqukethe amakhemikhali e-organic noma ama-phosphite, zisebenza njengama-antioxidants. Zikhipha ama-free radical akhiqizwa ukushisa noma ukukhanya, ziwavimbele ekuhlaseleni ama-molecule e-PVC futhi zibangele ukuphuzi.
Ukumelana ne-UV:Kumafilimu asetshenziswe ngaphandle anekhalenda, iziqinisi ezine-UV - izakhiwo zokumunca izinto zivikela izinto emisebeni yelanga eyingozi. Lokhu kubalulekile emikhiqizweni efana nezembozo zefenisha yasegadini noma amafilimu okugcina ukushisa, ukuqinisekisa ukuthi agcina umbala wawo namandla awo ngokuhamba kwesikhathi.
3.Isithuthukisi Sokusebenza: Ukuthuthukisa Izakhiwo Zemishini
Amafilimu anekhalenda adinga ukuguquguquka, ukuqina, futhi amelane nokudabuka. Iziqinisi ze-PVC zinegalelo kulezi zimfanelo ngokuthi:
Ukugcoba i-Melt:Ezinye izinto zokuzinzisa, njengezinhlobo ezisekelwe ensimbini – insipho, nazo zisebenza njengezinto zokugcoba zangaphakathi. Zinciphisa ukungqubuzana ngaphakathi kwe-PVC compound ngesikhathi sokucubungula, okuvumela ukuthi kugeleze kahle phakathi kwama-roller. Lokhu kuphumela kufilimu efanayo kakhulu enokuphela okungcono kwendawo kanye namaphutha ambalwa.
Ukuthuthukisa Ukuzinza Kwesikhathi Eside:Ngokuvimbela ukuwohloka, iziqinisi zigcina izakhiwo zemishini zefilimu isikhathi eside. Isibonelo, isembozo sebhande lokuhambisa elisekelwe e-PVC eliphathwe ngeziqinisi ezisezingeni eliphezulu sigcina ukuguquguquka kwaso kanye namandla okuthamba ngisho nangemva kweminyaka eminingi yokusetshenziswa kakhulu.
4.Umngane Wezemvelo: Ukuhlangabezana Nezindinganiso Zokuphepha
Njengoba kunezinkinga zemvelo nezempilo ezikhulayo, iziqinisi zesimanje ze-PVC zenzelwe ukuba zibe nobungane nemvelo. Kumafilimu ahlelwe ngekhalenda asetshenziswa ekupakisheni ukudla noma ekusetshenzisweni kwezokwelapha, iziqinisi kumele:
Ungabi Nobuthi:Izithambisi ezingezona izinsimbi ezisindayo ezifana nezingxube ze-calcium-zinc zithathe indawo yezinketho zendabuko ezisekelwe ku-lead. Lezi ziphephile ukuthintana ngqo nokudla futhi zihambisana nezindinganiso eziqinile zomthetho (isb., i-FDA e-US noma imithethonqubo yokuphepha kokudla ye-EU).
Nciphisa Umthelela Wezemvelo:Abanye abakhiqizi bahlola izinketho zokuzinza ezibolayo noma ezingasetshenziswa kabusha, beqinisekisa ukuthi amafilimu afakwe kukhalenda angalahlwa noma asetshenziswe kabusha ngaphandle kokulimaza iplanethi.
Izifundo Zezimo Ezisetshenzisweni Zefilimu Ezihleliwe
Ukupakisha Ukudla:Inkampani enkulu yokudla yashintshela kumafilimu e-PVC aqinisiwe e-calcium – zinc – ukuze afakwe emaphaketheni awo okudla okulula. Lawa ma-stabilizer awagcinanga nje ngokuhlangabezana nezidingo zokuphepha kokudla kodwa futhi athuthukise ukushisa – ukuvaleka kwefilimu kanye nokumelana namafutha kanye nomswakama, okwandisa isikhathi sokuphila kwemikhiqizo.
Ukwakhiwa:Embonini yokwakha, amafilimu e-PVC ahlelwe ngekhalenda anezithasiselo eziqinisa ukuqina kwe-UV asetshenziswa njengezinhlaka ezingangeni manzi. Lawa mafilimu angamelana nezimo zezulu ezinzima amashumi eminyaka, ngenxa yezakhiwo zokuvikela zeziqinisi, okunciphisa isidingo sokushintsha njalo.
Ikusasa Lama-PVC Stabilizers Kumafilimu Ahlelwe Ngekhalenda
Njengoba ubuchwepheshe buthuthuka, isidingo sezinzinzisi ze-PVC ezisebenzayo nezisimeme ekukhiqizweni kwamafilimu ahleliwe siyaqhubeka nokukhula. Abacwaningi bathuthukisa:
Iziqinisi Ezinemisebenzi Eminingi:Lokhu kuhlanganisa ukuvikelwa kokushisa, i-UV, kanye ne-antioxidant ngendlela eyodwa, okwenza kube lula inqubo yokukhiqiza futhi kuncishiswe izindleko.
Iziqinisi Ezisekelwe Ku-Bio:Njengoba zithathwe ezinsizeni ezivuselelekayo, lezi zindlela ezinobungani nemvelo zihlose ukunciphisa ukuthinteka kwemvelo kwamafilimu ahleliwe ngaphandle kokulahlekelwa ukusebenza kwawo.
Ekuphetheni, iziqinisi ze-PVC zingaphezu nje kwezengezo—ziwumgogodla wokukhiqizwa kwamafilimu ahleliwe. Kusukela ekuvikeleni izinto ngesikhathi sokucubungula ukushisa okuphezulu kuya ekuqinisekiseni ukuphepha nokuphila isikhathi eside emikhiqizweni esetshenziswa ekugcineni, umthelela wazo awunakuphikwa. Njengoba izimboni zilwela ukusungula izinto ezintsha kanye nokusimama, la maqhawe angadunyiswanga ngokungangabazeki azodlala indima ebaluleke kakhulu ekwakheni ikusasa lamafilimu ahleliwe.
I-TOPJOY ChemicalLe nkampani ibilokhu izibophezele ocwaningweni, ekuthuthukisweni, nasekukhiqizweni kwemikhiqizo ye-PVC stabilizer esebenza kahle kakhulu. Ithimba lochwepheshe le-R&D le-Topjoy Chemical Company liyaqhubeka nokuqamba izinto ezintsha, lenza ngcono ukwakheka kwemikhiqizo ngokuya ngezidingo zemakethe kanye nezitayela zokuthuthukiswa kwemboni, futhi linikeza izixazululo ezingcono zamabhizinisi okukhiqiza. Uma ufuna ukufunda ulwazi olwengeziwe mayelana ne-PVC stabilizers, wamukelekile ukuxhumana nathi nganoma yisiphi isikhathi!
Isikhathi sokuthunyelwe: Meyi-29-2025