I-Sealant iyisitatimende sokubopha uphawu esidambisa ukwakheka kwesivalo sendawo, akulula ukugeleza, futhi sinokunamathela okuthile. Kuyinto enamathela okusetshenziselwa ukugcwalisa izikhala phakathi kwezinto zokudlala indima yokuvala uphawu. Inemisebenzi yokuvuza, okungangeni manzi, i-anti-vibration, ukufakwa okuzwakalayo kanye nokufakelwa kokushisa.
Ngokuvamile kususelwa ezintweni ezomile noma ezingezona ezomile ezifana ne-asphalt, resin yemvelo noma i-sonthetic resin, irabha yemvelo noma irabha yemvelo. Kwenziwa nge-inert filler efana ne-talc, ubumba, ikhabhoni emnyama, i-titanium dioxide kanye ne-asbestos, bese ungeza amapulasitiki, ama-solvents, ama-ejenti okulapha, ama-accelerator, njll.
Ukuhlukaniswa kwama-sealants
I-sealant ingahlukaniswa ibe yi-eastic sealant, gasket ye-liquid sealant kanye nemikhakha emithathu yokuvalwa kwamakhasi.
Ngokusho kokuhlukaniswa kokwakheka kwamakhemikhali:Ingahlukaniswa ngohlobo lwenjoloba, uhlobo lwe-resin, uhlobo olususelwa ku-oyili kanye ne-polymer sealant yemvelo. Le ndlela yehlukaniso ingathola izici zezinto zokwenziwa kwama-polymer, ifaka ukumelana kwayo lokushisa, ukubekwa uphawu nokuvumelana nezimo kwabezindaba ezahlukene.
Uhlobo lwenjoloba:Lolu hlobo lwe-sealant lususelwa enjoloba. Ama-rubbers asetshenziswayo asetshenziswayo yi-polysulfide rubber, irabha le-silicone, i-polyurethane rubber, injoloba ye-neoprene ne-butyl.
Uhlobo lwe-Resin:Lolu hlobo lwe-sealant lususelwa ku-resin. Ama-resins asetshenziswa kaningi yi-epoxy resin, i-polyester resin engafakwanga, i-phenolic resin, i-polyvinyl chloride resin, njll.
Kususelwa ku-OIL:Lolu hlobo lwe-sealant lususelwa ku-oyili. Amafutha asetshenziswa kaningi amafutha emifino ahlukahlukene afana namafutha anamafutha anamafutha, uwoyela we-castor namafutha e-tungan, namafutha ezilwane anjenge-fish oyela.
Ukuhlukaniswa Ngokusho kwesicelo:Ingahlukaniswa ngohlobo lwamazinga okushisa aphezulu, uhlobo lokumelana olubandayo, uhlobo lokucindezela nokunye.
Ukuhlukaniswa ngokwezindawo ezakha amafilimu:Ingahlukaniswa ngohlobo olomile lokunamathela, uhlobo olomile olungenakuqina, uhlobo olungelona olunamathelayo nohlobo lwe-viscoelastic olomile.
Ukuhlukaniswa ngokusetshenziswa:Ingahlukaniswa yaba se-zokwakha sealant, imoto ye-motor sealant, i-insulation sealant, ukupakisha sealant, i-mining sealant nezinye izinhlobo.
Ngokuya ngokusebenza ngemuva kokwakhiwa:Ingahlukaniswa ngezinhlobo ezimbili: Ukwelapha i-sealant ne-semi-we-sealing sealant. Phakathi kwazo, ukwelashwa i-seanant kungahlukaniswa ngokuqinile futhi kuguquguquke. I-Ritrid Sealant iqinile ngemuva kokuvimbelani noma ukuqina, futhi akuvamile ukuba i-elasticity, ayikwazi ukugoba, futhi imvamisa imithungo ayikwazi ukuhanjiswa; Ama-sealars aguquguqukayo anwebeka futhi athambile ngemuva kokuvuselelwa. I-sealant engaphulukeli i-sealant ethambile eqinile egcina ukugcinwa kwe-tackifier engekho ngemuva kokwakha futhi ngokuqhubekayo isuka endaweni engaphezulu.
Isikhathi sePosi: Feb-18-2022