Ngaphandle kwemikhiqizo embalwa yenjoloba yokwenziwa, imikhiqizo eminingi yerabha yokwenziwa, njengenjoloba yemvelo, iyizinto ezivuthayo noma ezivuthayo. Njengamanje, izindlela eziyinhloko ezisetshenziselwa ukuthuthukisa ukuvinjelwa komlilo ukufaka ama-flame retardants noma ama-fillers e-flame retardant, nokuhlanganisa nokuguqula ngezinto ezivimbela ilangabi. Kunezinhlobo eziningana zobuchwepheshe obubuyisela amalangabi berabha:
1. Irabha ye-Hydrocarbon
Irabha ye-Hydrocarbon ihlanganisa i-NR, i-SBR, i-BR, njll. Irabha ye-Hydrocarbon ngokuvamile ayinakho ukumelana nokushisa kanye ne-flame retadancy, futhi iningi lemikhiqizo ebolayo ngesikhathi sokusha amagesi avuthayo. Ukwengeza izinqamuleli zamalangabi kuyindlela ebalulekile yokuthuthukisa ukubambezeleka komlilo kwerabha ye-hydrocarbon, kanye nomphumela we-synergistic wamalangabi abushelelezi usetshenziselwa ukuthuthukisa umphumela we-flame retadancy. Kodwa-ke, kufanele kuqashelwe umphumela omubi wenani le-flame retardant kuzakhiwo zemishini zenjoloba.
Engeza izihlungi ze-inorganic retardant ezifana ne-calcium carbonate, ubumba, impushana ye-talcum, ikhabhoni emnyama emhlophe, i-Aluminium hydroxide, njll. ukuze unciphise ingxenye yezinto eziphilayo ezivuthayo. I-calcium carbonate ne-nitrogen alumina inomphumela we-endothermic lapho ibola. Le ndlela izonciphisa izici ezithile zomzimba nezemishini yezinto zenjoloba, futhi inani lokugcwalisa akufanele libe likhulu kakhulu.
Ngaphezu kwalokho, ukukhulisa ukuminyana kwenjoloba kungakhuphula inkomba yayo ye-oxygen. Ngakho-ke, ingathuthukisa ukuncipha komlilo wenjoloba. Lokhu kungase kube ngenxa yokwanda kwezinga lokushisa lokubola okushisayo kwezinto zenjoloba. Le ndlela isetshenziswe ku-ethylene propylene rubber
2. Irabha ene-halogenated
Irabha ene-halogenated iqukethe izakhi ze-halogen, enenkomba ye-oksijini ngokuvamile ephakathi kuka-28 no-45, futhi inkomba ye-oksijini ye-FPM idlula ngisho nokungu-65. Uma iphezulu okuqukethwe kwe-halogen kurabha ene-halogenated, iphakamisa inkomba yayo ye-oxygen. Lolu hlobo lwerabha ngokwalo lunokubambezeleka kwelangabi eliphezulu kanye nokuzicisha uma luvutha. Ngakho-ke, ukwelashwa kwayo kwe-flame retardant kulula kunerabha ye-hydrocarbon. Ukuze kuthuthukiswe ukuqhubeka kwe-flame retadancy ye-raber ene-halogenated, indlela yokwengeza ama-flame retardants ngokuvamile yamukelwa.
3. Irabha ye-Heterochain
Uhlobo olumele kakhulu lwerabha kulesi sigaba irabha ye-dimethyl silicone, enenkomba ye-oxygen ecishe ibe ngu-25. Izindlela zangempela zokuvimbela ilangabi ezisetshenziswayo ukukhulisa izinga lokushisa layo lokubola okushisayo, ukwandisa insalela phakathi nokubola okushisayo, nokunciphisa izinga lokukhiqiza amagesi avuthayo.
Isikhathi sokuthumela: Jul-27-2023
