I-Polyvinyl chloride (PVC) iyi-polymer eyenziwe yi-polymerization ye-vinyl chloride monomer (VCM) lapho kukhona izinto eziqalayo njenge-peroxides kanye ne-azo compounds noma ngendlela ye-free radical polymerization ngaphansi kwesenzo sokukhanya noma ukushisa. I-PVC iyinto ye-polymer esebenzisa i-athomu ye-chlorine ukufaka esikhundleni se-athomu ye-hydrogen ku-polyethylene, kanti ama-homopolymer e-vinyl chloride kanye nama-copolymer e-vinyl chloride abizwa ngokuthi ama-resin e-vinyl chloride.
Amaketanga e-PVC amangqamuzana aqukethe ama-athomu e-chlorine aqinile ane-polar enamandla aphezulu phakathi kwama-molecule, okwenza imikhiqizo ye-PVC iqine, iqine, futhi izwakale kahle ngokomshini, futhi inokumelana okuhle kakhulu komlilo (ukumelana komlilo kubhekisela kusici into enaso noma into enaso ngemva kokwelashwa ukuze ibambezele kakhulu ukusabalala komlilo); noma kunjalo, amanani ayo e-dielectric constant kanye ne-dielectric loss angle tangent makhulu kunalawo e-PE.
I-resin ye-PVC iqukethe inani elincane lama-bond aphindwe kabili, amaketanga ahlanganisiwe kanye nezinsalela zokuqala ezisele ekusabeleni kwe-polymerization, kanye nama-athomu e-chlorine ne-hydrogen phakathi kwama-athomu amabili ekhabhoni aseduze, asuswa kalula e-chlorine, okuholela ekusabeleni kokuwohloka kwe-PVC kalula ngaphansi kwesenzo sokukhanya nokushisa. Ngakho-ke, imikhiqizo ye-PVC idinga ukwengeza iziqinisi zokushisa, njenge-calcium-zinc heat stabilizer, i-barium-zinc heat stabilizer, i-lead salt heat stabilizer, i-organic tin stabilizer, njll.
Izinhlelo zokusebenza eziyinhloko
I-PVC iza ngezindlela ezahlukene futhi ingacutshungulwa ngezindlela ezahlukene, okuhlanganisa ukucindezela, ukukhipha, ukujova, kanye nokufaka upende. Amapulasitiki e-PVC avame ukusetshenziswa ekwenziweni kwamafilimu, isikhumba sokwenziwa, ukufudumala kwezintambo nezintambo, imikhiqizo eqinile, phansi, ifenisha, imishini yezemidlalo, njll.
Imikhiqizo ye-PVC ngokuvamile ihlukaniswa ngezigaba ezintathu: eqinile, eqinile kancane futhi ethambile. Imikhiqizo eqinile neqinile kancane icutshungulwa ngaphandle noma ngenani elincane le-plasticizer, kuyilapho imikhiqizo ethambile icutshungulwa ngenani elikhulu le-plasticizer. Ngemva kokufaka ama-plasticizer, izinga lokushisa lokushintsha kwengilazi lingancishiswa, okwenza kube lula ukucubungula ekushiseni okuphansi futhi kwandise ukuguquguquka kanye nokuqina kweketanga lama-molecule, futhi kwenza kube nokwenzeka ukwenza imikhiqizo ethambile eguquguqukayo ekushiseni kwegumbi.
1. Amaphrofayili e-PVC
Isetshenziswa kakhulu ekwenzeni iminyango namafasitela kanye nezinto zokonga amandla.
2. Amapayipi e-PVC
Amapayipi e-PVC anezinhlobo eziningi, ukusebenza okuhle kakhulu kanye nokusetshenziswa okubanzi, futhi athatha isikhundla esibalulekile emakethe.
3. Amafilimu e-PVC
I-PVC ingenziwa ibe ifilimu ecacile noma enemibala enobukhulu obucacisiwe ngokusebenzisa ikhalenda, kanti ifilimu ekhiqizwa ngale ndlela ibizwa ngokuthi ifilimu ehleliwe. Izinto zokusetshenziswa ze-PVC ezihlanganisiwe nazo zingapheshulwa zibe yifilimu kusetshenziswa imishini yokubumba, kanti ifilimu ekhiqizwa ngale ndlela ibizwa ngokuthi ifilimu yokubumba. Ifilimu ingasetshenziswa ngezinjongo eziningi futhi ingacutshungulwa ibe yizikhwama, amajazi emvula, izindwangu zamatafula, amakhethini, amathoyizi afuthwayo, njll. ngezindlela zokusika nokuvala ukushisa. Amafilimu abanzi abonakalayo angasetshenziswa ukwakha izindawo zokugcina izithombo kanye nezindawo zokugcina izithombo zepulasitiki, noma asetshenziswe njengamafilimu aphansi.
4. Ibhodi le-PVC
Kungezwe nge-stabilizer, i-lubricant kanye ne-filler, futhi ngemva kokuxuba, i-PVC ingakhishwa ibe amapayipi aqinile ahlukahlukene, amapayipi anomumo kanye namapayipi ahlanganisiwe nge-extruder, futhi isetshenziswe njengepayipi elingaphansi, ipayipi lamanzi okuphuza, i-casing kagesi noma i-stairrail. Amashidi ahlanganisiwe ayahlanganiswa futhi acindezelwe ngokushisa ukuze kwenziwe amashidi aqinile anobukhulu obuhlukahlukene. Amashidi anganqunywa abe yizimo ezifiselekayo bese ehlanganiswa ngomoya oshisayo kusetshenziswa izinduku zokushisela ze-PVC ematangini okugcina ahlukahlukene angamelana namakhemikhali, amapayipi nezitsha, njll.
5. Imikhiqizo ethambile ye-PVC
Ukusebenzisa i-extruder, ingakhishwa ibe ngamapayipi, izintambo, izintambo, njll.; kusetshenziswa umshini wokubumba umjovo onezinhlobo ezahlukene zesikhunta, kungenziwa kube amasandali epulasitiki, amathe ezicathulo, amaslipper, amathoyizi, izingxenye zezimoto, njll.
6. Izinto zokupakisha ze-PVC
Imikhiqizo ye-PVC yokupakisha ikakhulukazi yezitsha ezahlukahlukene, ifilimu kanye neshidi eliqinile. Izitsha ze-PVC zikhiqizwa kakhulu ngamanzi amaminerali, iziphuzo, amabhodlela ezimonyo, kodwa futhi nokupakisha uwoyela ocoliwe.
7. Uphahla lwe-PVC kanye nophahla
I-PVC siding isetshenziswa kakhulu ukufaka esikhundleni se-aluminium siding, amathayili ephansi e-PVC, ngaphandle kwengxenye ye-resin ye-PVC, ezinye izingxenye ziyizinto eziphinde zasetshenziswa, izinamathiseli, izigcwalisi nezinye izingxenye, ezisetshenziswa kakhulu phansi kwesikhumulo sezindiza nakwezinye izindawo zomhlabathi oqinile.
8. Imikhiqizo yabathengi be-PVC
Imikhiqizo ye-PVC ingatholakala yonke indawo empilweni yethu yansuku zonke. I-PVC isetshenziselwa ukwenza izikhumba zokwenziwa ezahlukahlukene zezikhwama zemithwalo, imikhiqizo yezemidlalo efana nama-basketball, amabhola ebhola kanye namabhola e-rugby. Iphinde isetshenziselwe ukwenza iyunifomu kanye namabhande emishini yokuzivikela ekhethekile. Izindwangu ze-PVC zezingubo ngokuvamile ziyizindwangu ezimunca amanzi (akudingeki ukugqoka) njenge-ponchos, amabhulukwe ezingane, amajakethi esikhumba okwenziwa kanye namabhuzu emvula ahlukahlukene. I-PVC isetshenziswa futhi emikhiqizweni eminingi yezemidlalo nezokuzijabulisa efana namathoyizi, amarekhodi kanye nezimpahla zemidlalo.
Isikhathi sokuthunyelwe: Julayi-19-2023