I-Silicone sealant noma i-adhesive iwumkhiqizo onamandla, oguquguqukayo ongasetshenziswa ezinhlelweni eziningi ezahlukene. Nakuba i-silicone sealant ingaqinile njengamanye ama-sealant noma izinto zokunamathisela, i-silicone sealant ihlala iguquguquka kakhulu, ngisho noma yomile ngokuphelele nomawelashiwe. I-Silicone sealant futhi ingamelana namazinga okushisa aphakeme kakhulu, iyenze ilungele izinhlelo zokusebenza ezihlangabezana nokushisa okuphezulu, njengama-gaskets enjini.
I-cured silicone sealant ibonisa ukumelana nesimo sezulu esihle kakhulu, ukumelana nokuguga, ukumelana ne-UV, ukumelana ne-ozone, ukumelana nokushisa okuphezulu nokuphansi, ukumelana nokudlidliza, ukumelana nomswakama, nezakhiwo zokuvimbela amanzi; ngakho-ke, ukusetshenziswa kwayo kubanzi kakhulu. Ngawo-1990, yayivame ukusetshenziselwa ukuhlanganisa nokufaka uphawu embonini yengilazi, ngakho-ke yaziwa ngokuthi "i-glass adhesive."
Isithombe esiphezulu: I-silicone sealant epholile
Isithombe esingakwesokunxele: Ukupakishwa kwesigubhu se-silicone sealant
I-Silicone sealant ngokuvamile isekelwe ku-107(i-hydroxy-terminated polydimethylsiloxane), futhi yakhiwe ngezinto ezifana nama-polymers anesisindo esikhulu samangqamuzana, amapulasitiki, ama-filler, ama-cross-linking agents, ama-coupling agents, ama-catalysts, njll. Amapulasitiki asetshenziswa kakhulu ahlanganisa i-silicone. uwoyela, uwoyela omhlophe, njll. Izigcwalisi ezisetshenziswa kakhulu zihlanganisa i-nano-activated calcium carbonate, heavy calcium carbonate, ultrafine calcium. i-carbonate, i-silica evuthayo, nezinye izinto zokwakha.
Ama-silicone sealants afika ngezindlela ezihlukahlukene ezahlukene.
Ngokusho kohlobo lwesitoreji, ihlukaniswe yaba: izingxenye ezimbili (eziningi) kanye nengxenye eyodwa.
Izingxenye ezimbili (eziningi) zisho ukuthi i-silicone sealant ihlukaniswe ngamaqembu amabili (noma ngaphezulu kwezimbili) izingxenye A no-B, noma iyiphi ingxenye eyodwa ayikwazi ukuphulukisa, kodwa ngemva kokuba izingxenye ezimbili (noma ezingaphezu kwezimbili) zixutshwe, zizokwenza. ukukhiqiza ukusabela kokuphulukisa okuxhumanisa ukwenza ama-elastomers.
Ingxube kumele yenziwe ngokushesha ngaphambi kokuyisebenzisa, okwenza lolu hlobo lwe-silicone sealant lube luqili ukulisebenzisa.
I-Silicone sealant ingase futhi ize njengomkhiqizo owodwa, ngaphandle kokuxuba okudingekayo. Olunye uhlobo lwe-silicone sealant yomkhiqizo owodwa lubizwaI-Vulcanizing Yegumbi Lokushisa(RTV). Lolu hlobo lwe-sealant luqala ukuphulukisa ngokushesha nje lapho luvezwa emoyeni - noma, ngokunembile, umswakama osemoyeni. Ngakho-ke, kuyadingeka ukuthi usebenze ngokushesha lapho usebenzisa i-RTV silicone sealant.
I-Single-component silicone sealant ingahlukaniswa cishe ibe: uhlobo lwe-deacidification, uhlobo lwe-dealcoholization, uhlobo lwe-deketoxime, uhlobo lwe-deacetone, uhlobo lwe-deamidation, uhlobo lwe-dehydroxylamine, njll. ngokuvumelana nama-agent ahlukene okuxhumanisa (noma ama-molecule amancane akhiqizwa ngesikhathi sokwelapha) asetshenzisiwe. Phakathi kwazo, uhlobo lwe-deacidification, uhlobo lwe-dealcoholization kanye nohlobo lwe-deketoxime lusetshenziswa kakhulu emakethe.
Uhlobo lwe-Deacidification i-methyl triacetoxysilane (noma i-ethyl triacetoxysilane, i-propyl triacetoxysilane, njll.) njenge-ejenti exhumanisayo, ekhiqiza i-acetic acid ngesikhathi sokwelashwa, evame ukwaziwa ngokuthi "i-acid glue". Izinzuzo zayo yilezi: amandla amahle nokungafihli, isivinini sokuphulukisa ngokushesha. Ukungalungi yilezi: iphunga le-acetic acid elicasulayo, ukugqwala kwezinsimbi.
Uhlobo lwe-Dealcoholization i-methyl trimethoxysilane (noma i-vinyl trimethoxysilane, njll.) njenge-ejenti exhumanisayo, inqubo yayo yokwelapha ikhiqiza i-methanol, eyaziwa ngokuthi "iglue yohlobo lotshwala". Izinzuzo zayo yilezi: ukuvikelwa kwemvelo, okungagqwali. Ukungalungi: ijubane lokuphulukisa elihamba kancane, impilo yeshalofu yokugcina impofu kancane.
Uhlobo lwe-Deketo oxime i-methyl tributyl ketone oxime silane (noma i-vinyl tributyl ketone oxime silane, njll.) njenge-ejenti exhumanisayo, ekhiqiza i-butanone oxime ngesikhathi sokwelapha, eyaziwa ngokuthi "iglue yohlobo lwe-oxime". Izinzuzo zayo yilezi: akukho iphunga elikhulu kakhulu, ukunamathela okuhle ezintweni ezihlukahlukene. Ukungalungi: ukugqwala kwethusi.
Ngokusho kokusetshenziswa kwemikhiqizo ehlukaniswe: i-structural sealant, i-sealant ukumelana nesimo sezulu, i-door and window sealant, i-sealant joint, i-fire-proof sealant, i-anti-mildew sealant, i-sealant yokushisa ephezulu.
Ngokusho kombala womkhiqizo kuya kumaphuzu: umbala ojwayelekile omnyama, omhlophe we-porcelain, obala, isiliva grey 4 izinhlobo, eminye imibala esingayenza ngokuvumelana nezidingo zamakhasimende.
Kunezinhlobonhlobo zezinye, izinhlobo ezithuthuke kakhulu kwezobuchwepheshe ze-silicone sealant futhi. Uhlobo olulodwa, olubizwaukuzwela ukucindezelai-silicone sealant, inokubambezeleka okungapheli futhi ibambelela ngokucindezela ngamabomu - ngamanye amazwi, nakuba izohlala "inamathela," ngeke ibambelele uma into imane iyibhulashi noma imelene nayo. Olunye uhlobo lubizwaUV or imisebe yelashiwei-silicone sealant, futhi isebenzisa ukukhanya kwe-ultraviolet ukwelapha i-sealant. Ekugcineni,i-thermoseti-silicone sealant idinga ukuchayeka ekushiseni ukuze yelaphe.
I-silicone sealant ingasetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza. Lolu hlobo lwe-sealant luvame ukusetshenziswa ezinsizeni zezimoto nezihlobene, njengosizo lokuvala injini, ngama-gaskets noma ngaphandle kwawo. Ngenxa yokuguquguquka kwayo okuphakeme, i-sealant nayo iyisinqumo esihle ezintweni eziningi zokuzilibazisa noma imisebenzi yezandla.
Isikhathi sokuthumela: Dec-29-2023
