Imichilo yokuvala irabha ye-silicone iyimikhiqizo yokuvala ekhethekile ephezulu embonini yokuvala irabha, edume ngokumelana kwayo nokushisa okukhulu, ukuphepha kokudla kanye nokumelana nokuguga kakhulu, futhi isetshenziswa kabanzi ekukhiqizweni kwezimboni, imishini yezokwelapha, imishini yokudla, izimoto ezisezingeni eliphezulu kanye nemishini kagesi enembile. Ngokungafani nezinto ezivamile zerabha kanye ne-PVC, irabha ye-silicone ingeyomuthi we-polymer ongaphili, onezakhiwo zamakhemikhali ezizinzile, awunayo impendulo nge-asidi, i-alkali kanye nezinto ezivamile zamakhemikhali, kanye nokusebenza okuhle kakhulu kokuphepha okuphelele.
Inzuzo eyinhloko yemichilo yokuvala irabha ye-silicone isebangeni layo lokumelana nokushisa okukhulu, engasebenza kahle isikhathi eside endaweni ephakathi kuka--60℃ no-200℃, futhi ingamelana nokubhaka okushisa okuphezulu kwesikhathi esifushane kanye nokubanda okuphansi ngaphandle kokuguquka, ukuqina noma ukuguga. Lokhu kusebenza kwenza kube yinto engathathelwa indawo emishinini yezimboni eshisa kakhulu njengokuvala ihhavini, ukuvala ikhabhinethi yokubulala amagciwane, imishini yokucubungula ukudla kanye nezikhala zemishini yamakhemikhali. Ngesikhathi esifanayo, imichilo yokuvala i-silicone esezingeni lokudla kanye neyezokwelapha idlule isitifiketi sokuphepha esiqinile, enezinga elingenabo ubuthi, elingenambitheki, lenhlanzeko ephezulu, elingenakukhula kwamagciwane, ehlangabezana nezidingo zokuvala zokukhiqizwa kokudla kanye nezimo zokubulala amagciwane kwezokwelapha.
Ngokuphathelene nezakhiwo zomzimba, imichilo yokuvala irabha ye-silicone inokuqina okuthambile kakhulu, ukuqina okuhle kokucindezelwa kanye nokumelana nokudabuka, futhi ingagcina umphumela wokuvala ozinzile ngemva kokucindezelwa nokwelulwa kwezigidi eziningi. Lo mkhiqizo unezakhiwo ezinhle kakhulu zokuvikela, ukumelana nomswakama kanye nokulwa nokushiswa kwe-oxidation, futhi usetshenziswa kabanzi ekuvaleni nasekuvikeleni amathuluzi kagesi anembile kanye nemishini kagesi, ukugwema ngempumelelo ukwehluleka kwemishini okubangelwa umswakama, uthuli kanye nogesi ongashintshi. Embonini yezimoto ezisezingeni eliphezulu, imichilo yokuvala i-silicone isetshenziselwa ukuvala umnyango wemoto namafasitela, ukuvala indawo yenjini kanye nokuvala igebe langaphakathi lemoto, ukuthuthukisa umphumela wokuthulisa imoto kanye nenduduzo yokushayela.
Lo mkhiqizo usekela ukucutshungulwa okwenziwe ngokwezifiso ngezitayela eziqinile, ezingenalutho, ezimise okwehlukile kanye neziponji ezinezinketho zemibala ehlukahlukene kanye nezindawo ezibushelelezi nezihlala isikhathi eside. Naphezu kwezindleko zokukhiqiza eziphakeme uma kuqhathaniswa nezinye izindlela ze-EPDM kanye ne-PVC, ukuzivumelanisa nezimo kwemvelo okukhulu kanye nokuphila kwayo isikhathi eside kwenza kube ukukhetha okuhle kakhulu kwezimo zokuvala ezisezingeni eliphezulu nezifunwa kakhulu. Iqhutshwa ukwanda okusheshayo kwezimboni zokukhiqiza ezisezingeni eliphezulu, ukwelashwa kanye nokucubungula ukudla, isidingo semakethe semichilo yokuvala irabha ye-silicone esebenza kahle sikhuphuka unyaka nonyaka, siwubeka njengomkhiqizo oyinhloko onenani eliphezulu emkhakheni wezinsiza zokuvala emhlabeni jikelele.
Isikhathi sokuthunyelwe: Agasti-06-2026