Isilawuli sokukhihliza amagwebu se-PVC singasisiza silethe izakhiwo ezinhle ngesikhathi sokukhiqiza nokucubungula i-PVC, senze ukusabela kwethu kuqhubeke kangcono futhi sikhiqize imikhiqizo esiyifunayo. Kodwa-ke, sidinga futhi ukunaka izindawo ezimbalwa ezibalulekile zokulawula izimboni lapho sikukhiqiza, ukuze ukusabela kwethu kuqhubeke kangcono.
Ukubunjwa kwepulasitiki okunegwebu kwesilawuli se-PVC esigwebuzelayo kuhlukaniswe izinqubo ezintathu: ukwakheka kwe-bubble core, ukunwetshwa kwe-bubble core, kanye nokuqina komzimba wegwebu. Kumashidi egwebu e-PVC anamakhemikhali afakwe amagwebu angeziwe, ukunwetshwa kwe-bubble nuclei kunomthelela omkhulu kukhwalithi yeshidi legwebu. I-PVC ingeyama-molecule eketango eliqondile elinamaketanga amafushane wamangqamuzana namandla okuncibilika aphansi. Ngesikhathi senqubo yokunwetshwa kwe-bubble core ibe amabhamuza, ukuncibilika akwanele ukumboza amabhamuza, futhi igesi ijwayele ukuchichima futhi ihlangane ibe amabhamuza amakhulu, kunciphisa ikhwalithi yomkhiqizo wamashidi wegwebu.
Isici esibalulekile ekuthuthukiseni ikhwalithi yezilungisi ze-PVC ezinegwebu ukuthuthukisa amandla okuncibilika kwe-PVC. Kusukela ekuhlaziyweni kwezici zokucubungula zezinto ze-polymer, kunezindlela ezihlukahlukene zokuthuthukisa amandla okuncibilika kwe-PVC, kodwa indlela engcono kakhulu yokwengeza izithasiselo ezithuthukisa amandla okuncibilika nokunciphisa izinga lokushisa lokucubungula. I-PVC ingeyezinto ze-amorphous, futhi amandla ayo okuncibilika ehla ngokunyuka kwezinga lokushisa lokuncibilika. Ngokuphambene, amandla ayo okuncibilika akhuphuka ngokuncipha kwezinga lokushisa lokuncibilika, kodwa umphumela wokupholisa unomkhawulo futhi usebenza kuphela njengomsebenzi osizayo. Ama-ejenti wokucubungula we-ACR wonke anomphumela wokuthuthukisa amandla okuncibilika, akhuphuka ngokwanda kokuqukethwe kwesilawuli esinegwebu. Ngokuvamile, inqobo nje uma isikulufu sinekhono elanele lokuhlakaza nekhono lokuxuba, ukwengeza izilungisi eziphezulu ze-viscosity ezinegwebu kunomthelela obaluleke kakhulu ekuthuthukiseni amandla okuncibilika.
Okungenhla yisingeniso esifushane samaphuzu abalulekile wokulawulwa kwenqubo yegwebu yezilungisi ze-PVC zegwebu. Lapho sizikhiqiza, kufanele sinake ukwakheka, ukunwetshwa, kanye nokuphulukiswa kwe-bubble nuclei yazo futhi siwalawule ngokuqinile.
Isikhathi sokuthumela: Sep-07-2024
