I-Silicone sealant okanye i-adhesive yimveliso enamandla, eguquguqukayo enokusetyenziswa kwizicelo ezininzi ezahlukeneyo. Nangona i-silicone sealant ingenamandla njengamanye amatywina okanye izinto zokuncamathelisa, i-silicone sealant ihlala ibhetyebhetye, nokuba sele yomile ngokupheleleyo okanyeuphilisiwe. I-Silicone sealant inokumelana namaqondo obushushu aphezulu kakhulu, iyenza ilungele usetyenziso olufumana ubushushu obuphezulu, obufana neegesi ze-injini.
I-silicone sealant enyangisiweyo ibonisa ukuxhathisa kwemozulu okugqwesileyo, ukumelana nokwaluphala, ukuxhathisa kwe-UV, ukuxhathisa kwe-ozone, ukuxhathisa ubushushu obuphezulu kunye nokuphantsi, ukuxhathisa ukungcangcazela, ukuxhathisa ukufuma, kunye neempawu zokungangeni manzi; ngoko ke, izicelo zayo zibanzi kakhulu. Ngeminyaka yoo-1990, yayidla ngokusetyenziselwa ukudibanisa kunye nokutywinwa kwishishini leglasi, ngoko ke yaziwa ngokuba yi "glass adhesive."
Umfanekiso ophezulu: I-silicone sealant ephilisiwe
Umfanekiso osekhohlo: Ukupakishwa kwegubu le-silicone sealant
I-silicone sealant ngokuqhelekileyo isekelwe kwi-107 (i-hydroxy-terminated polydimethylsiloxane), kwaye yenziwe ngezinto ezifana ne-polymers ephezulu-molecular-weight, i-plasticizers, fillers, i-cross-linking agents, i-coupling agents, i-catalysts, njl. ioli, ioli emhlophe, njl. Izizalisi ezisetyenziswa ngokuqhelekileyo ziquka i-nano-activated calcium carbonate, i-heavy calcium carbonate, i-ultrafine calcium. carbonate, i-silica evuthayo, kunye nezinye izinto.
Ii-silicone sealants ziza kwiindidi ezahlukeneyo.
Ngokohlobo lokugcinwa, luhlulwe lube: ezimbini (ezininzi) zecandelo kunye necandelo elilodwa.
Iinxalenye ezimbini (ezininzi) zithetha ukuba i-silicone sealant yahlulwe yangamaqela amabini (okanye ngaphezulu kwesibini) iinxalenye A kunye no-B, naliphi na icandelo elinye alinakwenza unyango, kodwa emva kokuba amacandelo amabini (okanye ngaphezulu kwesibini) exutywe, aya kuthi axutywe. ukuvelisa ukusabela kokunyanga okunqamlezayo ukwenza ii-elastomers.
Umxube kufuneka wenziwe ngoko nangoko ngaphambi kokuwusebenzisa, nto leyo eyenza ukuba olu hlobo lwe-silicone sealant lube lukhuni ukuyisebenzisa.
I-Silicone sealant inokuza njengemveliso enye, ngaphandle kokuxubana okufunekayo. Olunye uhlobo lwe-silicone sealant yemveliso enye ibizwa ngokubaUbushushu begumbi Vulcanizing(RTV). Olu hlobo lwe-sealant luqala ukunyanga ngokukhawuleza xa lubonakaliswe emoyeni - okanye, ngokuchanekileyo, umswakama emoyeni. Ngoko ke, kuyimfuneko ukuba usebenze ngokukhawuleza xa usebenzisa i-RTV silicone sealant.
I-silicone sealant ye-single-component inokuthi ihlulwe ngokufanelekileyo ibe: uhlobo lwe-deacidification, uhlobo lwe-dealcoholization, uhlobo lwe-deketoxime, uhlobo lwe-deacetone, uhlobo lwe-deamidation, uhlobo lwe-dehydroxylamine, njl njl ngokweendlela ezahlukeneyo ze-crosslinking agents (okanye iimolekyuli ezincinci ezenziwe ngexesha lokunyanga) ezisetyenzisiweyo. Phakathi kwazo, uhlobo lwe-deacidification, uhlobo lwe-dealcoholization kunye nohlobo lwe-deketoxime lusetyenziswa kakhulu kwintengiso.
Uhlobo lwe-Deacidification yi-methyl triacetoxysilane (okanye i-ethyl triacetoxysilane, i-propyl triacetoxysilane, njl.) njenge-agent edibanisayo, evelisa i-acetic acid ngexesha lokunyanga, eyaziwa ngokuba yi "acid glue". Izibonelelo zayo zezi: amandla alungileyo kunye nokungafihli, isantya sokunyanga ngokukhawuleza. Ukungalungi: ukuvumba kwe-acetic acid, ukubola kwesinyithi.
Uhlobo lwe-Dealcoholization yi-methyl trimethoxysilane (okanye i-vinyl trimethoxysilane, njl.) njenge-agent edibanisayo, inkqubo yayo yokunyanga ivelisa i-methanol, eyaziwa ngokuba yi-"alcohol-type glue". Izibonelelo zayo zezi: ukukhuselwa kwendalo, ukungonakalisi. Izinto ezingeloncedo: isantya esicothayo sokunyanga, ubomi beshelufu yogcino bunzima kancinci.
Uhlobo lwe-Deketo oxime yi-methyl tributyl ketone oxime silane (okanye i-vinyl tributyl ketone oxime silane, njl. njl.) njenge-agent edibanisayo, evelisa i-butanone oxime ngexesha lokunyanga, eyaziwa ngokuba yi-"oxime type glue". Izibonelelo zayo zezi: akukho vumba elikhulu kakhulu, ukunamathela kakuhle kwizinto ezahlukeneyo. Ukungalungi: ukubola kobhedu.
Ngokusetyenziswa kweemveliso ezahlulwe zibe: i-structural sealant, i-sealant echasene nemozulu, i-door and window sealant, i-sealant joint, i-fire-proof sealant, i-anti-mildew sealant, i-sealant ephezulu yokushisa.
Ngokombala wemveliso ukuya kumanqaku: umbala oqhelekileyo omnyama, i-porcelain emhlophe, ecacileyo, isilivere engwevu 4 iintlobo, eminye imibala esinokuyiqhuba ngokweemfuno zabathengi.
Kukho iintlobo ngeentlobo zezinye, iindlela eziphucuke ngakumbi zetekhnoloji ye-silicone sealant ngokunjalo. Olunye uhlobo, olubizwaubuthathaka boxinzeleloi-silicone sealant, inobuqhophololo obusisigxina kwaye ibambelela ngoxinzelelo lwangabom - ngamanye amazwi, nangona iya kuhlala "incangathi," ayizukuncamathela ukuba into ivele ixutywe okanye iphumle ngokuchasene nayo. Olunye uhlobo lubizwaUV or Imitha ephilisiwei-silicone sealant, kwaye isebenzisa ukukhanya kwe-ultraviolet ukunyanga i-sealant. Ekugqibeleni,thermoseti-silicone sealant idinga ukuvezwa kobushushu ukuze inyange.
I-Silicone sealant inokusetyenziswa kwizinto ezahlukeneyo. Olu hlobo lwe-sealant lusetyenziswa rhoqo kwiimoto kunye nezicelo ezinxulumene nazo, ezifana noncedo lokutywina injini, kunye okanye ngaphandle kweegaskets. Ngenxa yokuguquguquka okuphezulu, i-sealant ikwalukhetho oluhle kwizinto ezininzi zokuzonwabisa okanye ubugcisa.
Ixesha lokuposa: Dec-29-2023
