Amagwebu epulasitiki angahlukaniswa abe izinqubo ezintathu: ukwakheka kwama-bubble nuclei, ukunwetshwa kwama-bubble nuclei, kanye nokuqiniswa kwemizimba yegwebu. Kumashidi egwebu e-PVC, ukunwetshwa kwe-bubble core kunomthelela obalulekile kukhwalithi yeshidi legwebu. I-PVC ingeyama-molecule eketango eliqondile, anamaketanga amafushane wamangqamuzana namandla ancibilikayo aphansi. Ngesikhathi senqubo yokunwetshwa kwe-bubble ibe ama-bubbles, ukuncibilika akwanele ukumboza ama-bubbles, futhi igesi ijwayele ukuchichima futhi ihlangane ibe ama-bubbles amakhulu, ukunciphisa ikhwalithi yomkhiqizo wamashidi we-foam.
Isici esibalulekile ekuthuthukiseni ikhwalithi yamashidi egwebu e-PVC ukukhulisa amandla okuncibilika kwe-PVC. Kusukela ekuhlaziyweni kwezici zokucubungula zezinto ze-polymer, kunezindlela ezihlukahlukene zokuthuthukisa amandla okuncibilika kwe-PVC, phakathi kwazo indlela ephumelela kakhulu yokwengeza izithasiselo zokuthuthukisa amandla okuncibilika nokunciphisa izinga lokushisa lokucubungula. I-PVC ingeyezinto ze-amorphous, futhi amandla okuncibilika ayancipha ngokunyuka kwezinga lokushisa elincibilikayo. Ngokuphambene, amandla okuncibilika ayanda ngokuncipha kwezinga lokushisa lokuncibilika, kodwa umphumela wokupholisa unomkhawulo futhi udlala indima yokusiza kuphela. Ama-ejenti wokucubungula we-ACR anomphumela wokuthuthukisa amandla okuncibilika, phakathi kwawo izilawuli eziphuma amagwebu zisebenza kahle kakhulu. Amandla okuncibilika ayanda ngokwanda kokuqukethwe kwesilawuli esinegwebu. Ngokuvamile, inqobo nje uma isikulufu sinekhono elanele lokuhlakazeka kanye nekhono lokuxuba, ukwengeza izilawuli ze-viscosity ezinegwebu kunomthelela obaluleke kakhulu ekuthuthukiseni amandla okuncibilika. Indima yokucubungula izinsiza kumashidi egwebu e-PVC: Izinsiza zokucubungula i-ACR zikhuthaza ukuncibilika kwe-PVC, zithuthukise ukushelela kwendawo, zithuthukise ukunwebeka kwencibilika, futhi zithuthukise ukuncibilika kobude namandla. Kuwusizo ukugoqa amabhamuza nokuvikela ukuwa kwebhamuza. Isisindo samangqamuzana kanye nomthamo wabalawuli abagwetshwayo kunomthelela omkhulu ekumineni kwamashidi egwebu: njengoba isisindo samangqamuzana sikhula, amandla e-PVC ayancibilika, futhi ukuminyana kwamashidi wegwebu kungancishiswa, okunomthelela ofanayo nokwandisa umthamo wabalawuli. Kodwa lo mphumela awunabo ubudlelwano bomugqa. Ukuqhubeka nokwandisa isisindo samangqamuzana noma umthamo akunawo umthelela obalulekile ekunciphiseni ukuminyana, futhi ukuminyana kuzovame ukuhlala njalo.
Kunobudlelwano obubalulekile phakathi kwezilawuli ezikhipha amagwebu nama-ejenti akhipha amagwebu. Kukhona iphuzu lokulinganisa phakathi kokuminyana kwamashidi egwebu nezilawuli eziphuma amagwebu. Ngaphandle kwaleli phuzu lokulinganisa, ukuminyana kwamashidi we-foam akuthintwa okuqukethwe kwama-agent akhipha amagwebu futhi ahlala njalo. Okusho ukuthi, ukwandisa inani le-ejenti enegwebu akukwazi ukunciphisa ukuminyana. Isizathu salesi simo ukuthi ngaphansi kwenani elithile labalawuli abagwetshwayo, amandla okuncibilika kwe-PVC anomkhawulo, futhi igesi eningi ingabangela ukuwa noma ukuhlanganiswa kwamaseli egwebu.
Isikhathi sokuthumela: Mar-28-2024
