Sizokuchazela{0}}inqubo yokuguga ephezulu yezinga lokushisa le-silicone foam kusukela kumgomo oyinhloko{1}}wokuguga okuphezulu kwezinga lokushisa nokuthi izici ezinhlanu ezinkulu ziyithinta kanjani inqubo yokuguga.
一, Izindlela Ezimbili Zokuguga Eziwumgogodla weSiponji seSilicone
Ukuguga kwebhodi legwebu le-silicone ngaphansi kwezimo ezishisayo ngokuyisisekelo kuvela emiphumeleni ehlanganisiwe yezindlela ezimbili ezihambisanayo eziboniswe emfanekisweni ongenhla.
Indlela yekhemikhali (i-thermal-ukuguga komoyampilo): Izinga lokushisa eliphezulu nomoya-mpilo lihlasela umgogodla we-siloxane (-Si{2}}O{3}}) namaketango e-methyl side (-CH₃), okubangela ukuphuka kweketango lamangqamuzana (depolymerization) noma ukukhuphuka kokuxhumanisa. Lesi yimbangela yamakhemikhali yokubola noma ukuqina kwempahla.
Indlela engokomzimba (ukwehluleka kokucindezeleka okushisayo): Isakhiwo esinezimbotshana segwebu sibuthakathaka ngokwemvelo. Ama-coefficients okunwebeka okushisayo angafani ezingxenyeni zawo adala ukucindezeleka kwendawo phakathi nokuhamba ngebhayisikili okushisayo, okusakazeka kusukela ezimbotsheni ezisengozini kakhulu ukuze kuqalise ama-microcracks futhi ekugcineni kubangele ukuwohloka kwesakhiwo.
2.{0}Ngokuhlaziya okujulile kwezinto ezithile ezinomthelela
1. Isakhiwo se-polymer molecular (isici esinqumayo)
Uhlobo lwerabha eluhlaza kanye nokuqukethwe kwe-vinyl: I-Vinyl iyiphuzu eliyinhloko lokusabela okuxhumanisayo. Okuqukethwe kwe-vinyl kunquma ngokuqondile ukuminyana nokuzinza kwesakhiwo senethiwekhi ngemva kokukhishwa kwe-vulcanization. Irabha eluhlaza enokuqukethwe kwe-vinyl ethile ivamise ukusetshenziselwa{2}}ibhodi legwebu le-silicone eliphezulu.
Okuqukethwe okuguquguqukayo okuphansi (okubalulekile): Njengoba kuxoxiwe ngaphambilini, amabhayisikili e-D4/D5 asele kanye nomswakama kusebenza "njengezisusa zokuguga". Lezi zingxenye zivame ukunqwabelana kumaseli e-foam, zisheshisa ngokushesha ukuwohloka kokukhishwa kweketango eliyinhloko emazingeni okushisa aphakeme. Ukulawula lokhu kuwumsebenzi oyinhloko wokuqinisekisa impilo ende emthonjeni.
2. Ukuqinisa uhlelo (ukwesekwa kwamathambo)
Uhlobo lokugcwalisa nokuhlakazwa: I-silica yesigaba segesi iyisigcwali esiqinisayo esiyinhloko. Indawo yayo ethile, inqubo yokwelashwa kwendawo kanye nokufana kokuhlakazwa kwejeli ye-silica kunquma ngokuqondile umphumela wokuqinisa. Ukuhlakazeka okungalingani kuzokwakha amaphuzu okugxilisa ingqondo futhi kube indawo yokuqala yokuguga nokuqhekeka.
3. Izithasiselo kanye Namafomula (Ukuzinza Nokuvikelwa)
-izithasiselo ezimelana nokushisa: Ukwengezwa kwezithako ezimelana nokushisa{1}}ezinjenge-iron oxide (i-iron ebomvu) ne-cerium oxide zingabamba ngempumelelo ama-radicals mahhala futhi zivimbele inqubo yokuguga komoyampilo oshisayo, okuyisihluthulelo sokuthuthukisa ukumelana-nokushisa kwesikhathi eside.
Uhlelo lwe-sulfurization: uhlobo nomthamo we-peroxide vulcanizing agent izothinta uhlobo nokuminyana kwebhondi exhumanisayo. Inethiwekhi exhumanisayo ezinzile futhi eminyene inamandla angcono okulwa{1}}nokuguga.
4. Inqubo Yokukhiqiza (Ukuqaliswa Kwesakhiwo)
Ukufana kogwebu: Usayizi nokusabalalisa kwamabhamuza kubalulekile. Isakhiwo sebhamuza esingalingani sizodala ukusabalalisa kwengcindezi okungalingani lapho kushisa, futhi amabhamuza amakhulu noma izindawo ezibuthakathaka zizobhujiswa kuqala.
Okuqukethwe kwesibabule: Isibabule esinganele singabangela ukwakheka kwenethiwekhi okungaphelele, ukuncipha kwamandla okusebenza, kanye nokuguga okusheshayo. Isibabule esiningi singabangela{1}}ekuqinisweni kwenethiwekhi, ukuncipha kokunwebeka, kanye nokwenyuka kokuqina.
Ukucubungula-okuthunyelwe: Okwanele{1}}izigaba ezimbili ze-vulcanization (ukubhaka) kubalulekile ukuze kususwe ngokuphelele izinsalela zokuguquguquka nama-molecule amancane, okudingekayo ukuze kuzinzise ukusebenza komkhiqizo nokuthuthukisa ukumelana nokushisa.
5. Indawo yesicelo sangaphandle (ukuhlolwa kokugcina)
Izinga lokushisa lokusebenza nobude besikhathi: Izinga lokuguga licishe liphindwe kabili kukho konke ukukhuphuka kwezinga lokushisa kuka-10-15 degrees. Ukusebenza isikhathi eside emkhawulweni wezinga lokushisa olinganiselwe kuzonciphisa ngokuphawulekayo ubude bempilo.
Ukuhamba ngebhayisikili okunezinga lokushisa: Ingcindezi yokukhathala okushisayo ebangelwa ukushintshashintsha njalo kokushisayo nokubanda yonakalisa kakhulu isakhiwo esinezimbotshana kunaleyo esendaweni yokushisa engaguquki.
Indawo ezungezile: Ukuthintana nowoyela, i-asidi, i-alkali noma ukuchayeka okuqhubekayo ekukhanyeni kwe-ultraviolet ne-ozone kuzoba nomthelela wokusebenzisana nokushisa futhi kusheshise ukuguga.
I-Sanpu Silicone yenze{0}}umkhiqizo we-silicone ongazweli emazingeni aphezulu,chofoza ukuze ukwazi okwengeziwe.