Ukulungiswa kwe-EVA enegwebu okuphezulu okukhanyayo okuphezulu okunwebekayo kwemvelo

Izinkinga ezithile zimi kanje: okokuqala, izinga lokushisa lokubola le-ejenti ekhiqiza amagwebu lamakhemikhali liyadingeka ukuba libe ngaphezu kwezinga lokushisa lapho i-EVA iseduze nokuncibilika ngenqubo ye-EVA yokukhipha amagwebu yamakhemikhali, futhi izinga lokushisa lokubola le-ejenti ekhiqiza amagwebu libanzi kakhulu. futhi inqubo yokubola ihilela ibhalansi yamakhemikhali, ukuze i-agent ekhipha amagwebu yamakhemikhali isalokhu inenani elikhulu ku-matrix yezinto ezibonakalayo ngemva kokuqedwa kwegwebu, izinyathelo zokucwenga i-EVA enezinga lokushisa eliphansi esimweni esingancibilikisiwe nokwandisa ukungezwa kochungechunge lwezinto ezisizayo. ama-ejenti afana ne-cross-linking agent, i-stearic acid, i-cross-linking initiator, ikhemikhali ekhiqiza amagwebu i-ejenti yokubola, i-plasticizer nokunye okunjalo asetshenziswa kakhulu embonini ukuze kuncishiswe ithonya le-ejenti eyinsalela ekhipha amagwebu ekusebenzeni kwegwebu. izinto ezibonakalayo, kodwa izinyathelo zibangela ngokuqondile inani elikhulu lama-agent asizayo e-micromolecular kalula ukuthuthela emkhiqizweni wokugcina, futhi ama-ejenti asizayo aqhubekela phambili athuthela phezu komkhiqizo kusukela ngaphakathi kanye nokusetshenziswa isikhathi eside, ukuze ukutheleleka kwesikhumba noma okunye ukungcola okuxhunywe nomkhiqizo kubangelwa;okwesibili, enqubweni yokukhipha amagwebu amakhemikhali, ukubola kwe-ejenti ephephetha ikhemikhali enquma indlela yokwenza amagwebu kanye nokuphambana kwamakhemikhali okunquma ukuziphatha kwe-rheology encibilikayo kuqhubeke kanye kanye, futhi izinga lokushisa elifanele ukubola kwe-ejenti ephephetha amakhemikhali alilona izinga lokushisa elifaneleka kakhulu. i-melt rheology ye-cell nucleation nokukhula.Ukwengeza, ikhemikhali eyenza amagwebu kanye nokuphambanisa kwamakhemikhali kuyizinqubo eziguquguqukayo ezenziwa ngokuqhubekayo ngokuhamba kwesikhathi, futhi ukuncika kwezinga lokushisa kunamandla kakhulu.Inqubo yokulungisa igwebu le-EVA ngendlela yokwenza amagwebu amakhemikhali idinga ukucabangela ukuphambana nokukhipha amagwebu ngasikhathi sinye ukuze kube nzima ukwenza kahle kwesakhiwo seseli.

Ukuze kuxazululwe izinkinga ezingenhla, abakhiqizi bezinto ezibonakalayo bebelokhu beqhuba ukuhlola nokucwaninga ngenkuthalo.inhlanganisela EVA Foamed material nezinye izinto elastomer isibe ucwaningo olushisayo phakathi abakhiqizi izicathulo.