I-PVC (i-polyvinyl chloride) isetshenziswa kakhulu ekwakheni, ekufakeni amapayipi, ifenisha, nemikhiqizo yepulasitiki ngenxa yokumelana nokugqwala kwayo, izindleko eziphansi, nokucubungula kalula. Kodwa-ke, i-PVC yokubopha ngokuvamile ihlushwa izibopho ezibuthakathaka, ukuqhekeka, noma ukuxebuka ngenxa yokungangeni kwendawo, umehluko wezinto ezibonakalayo, noma izici zemvelo. Izixazululo zeglue ze-PVC zesayensi zibalulekile ekubhekaneni nalezi zinselele.
1. Ukukhethwa Kweglue ye-PVC nokuhambisana
Izidingo eziyinhloko zeglue ye-PVC ukunamathela okuqinile kanye nokumelana nesimo sezulu. Uhlobo olufanele lweglue kufanele lukhethelwe izimo ezihlukene zohlelo lokusebenza:
Iglue ye-PVC encibilikisiwe{{0}esekelwe ku-PVC (njengeglue esekelwe ku-chloroform{{1}): incibilikisa ama-molecule e-PVC ukuze akhe amabhondi amakhemikhali. Ifanele ukubopha okusheshayo kwamapayipi noma amashidi e-PVC aqinile, kodwa umoya ofanele nokuphatha okuphephile kubalulekile.
I-Acrylate glue: ihlanganisa ukuguquguquka kwamandla aphezulu, iyenze ifanele ukubopha i-PVC ezintweni ezingafani njengensimbi nokhuni. Inebanga lokushisa elibanzi (-20℃kuya ku-80 degree).
I-epoxy resin adhesive: Inikeza ukumelana kwamakhemikhali okuhle kakhulu-kuzindawo ezinomthwalo ophezulu noma ezinomswakama, kodwa idinga isikhathi eside sokwelapha.
Amacebiso Abalulekile: Hlanza indawo ye-PVC ngaphambi kokuyisebenzisa (susa uwoyela nothuli), futhi uyigcobe uma kunesidingo ukuze uqinise ukunamathela.
2. Izinkinga Ezivamile Nezixazululo
Ukunamathela okubuthakathaka noma ukubopha: Lokhu kuvame ukubangelwa ukulungiswa okunganele kwendawo noma umthamo ongafanele wokunamathela. Kunconywa ukusebenzisa izendlalelo ezinamathelayo nezincane kakhulu futhi usebenzise ingcindezi emaphakathi amahora angama-24.
Ukwelapha okunamathelayo okunensayo: Amazinga okushisa aphansi noma umswakama ophezulu ungabambezela ukusabela. Hambisa indawo yokubopha uyiyise endaweni engaphezu kuka-20℃noma usebenzise ingcina esheshayo-eyomisa (njenge-adhesive esheshayo).
Ukuqhekeka komphetho: Lokhu kubangelwa umehluko ekwandiseni okushisayo kanye nokufinyela phakathi kwezinto ezingafani. Kunconywa ukusebenzisa i-acrylic adhesive eguquguqukayo noma wengeze i-PVC-i-caulk ethize emalungeni ukuze unciphise ingcindezi.
3. Ukuthuthukisa Imvelo Nokuphepha
Ama-adhesive asuselwa ku-solvent{0}avamile aqukethe ama-volatile organic compounds (VOCs), angaba yingozi empilweni. Izisombululo zesimanje zivamise ukuthanda{2}}amanzi anobuthi aphansi{{3}okunamathelisa i-PVC asuselwa ku-PVC noma izinto ezinamathelayo ezilaphekayo ze-UV{4}. Lokhu kwelashwa ngokushesha ngokukhanya kwe-ultraviolet, kunciphisa ukukhishwa kwamagesi ayingozi futhi kuwenze afanelekele izindawo ezingaphakathi noma ezivalekile.
Isiphetho
Ukusetshenziswa ngempumelelo kwezinamathiselo ze-PVC kuncike ekusebenzisaneni kwezinto, ukusebenza okujwayelekile, nokulawulwa kwemvelo. Ngokukhetha okunamathelayo kwesayensi, ukusetshenziswa okunembile, kanye nokulindela izinkinga ezingaba khona, ukwethembeka kwesibopho kungathuthukiswa kakhulu, kunwetshwe impilo yesevisi yomkhiqizo kuyilapho kubhekwana nezidingo zemvelo nezokuphepha.