Cov tshuaj nplaum yog ib yam khoom siv sib khi uas hloov pauv mus rau hauv cov duab ntawm qhov chaw sib khi, tsis yooj yim ntws, thiab muaj qee qhov kev nplaum. Nws yog ib qho nplaum siv los sau qhov sib txawv ntawm cov khoom kom ua lub luag haujlwm sib khi. Nws muaj cov haujlwm ntawm kev tiv thaiv kev xau, tiv thaiv dej, tiv thaiv kev co, rwb thaiv suab thiab rwb thaiv cua sov.
Feem ntau nws yog ua los ntawm cov khoom siv qhuav lossis tsis qhuav xws li asphalt, natural resin lossis synthetic resin, natural rubber lossis synthetic rubber. Nws yog ua los ntawm cov khoom inert xws li talc, av nplaum, carbon dub, titanium dioxide thiab asbestos, thiab tom qab ntawd ntxiv cov plasticizers, cov kuab tshuaj, cov neeg sawv cev curing, accelerators, thiab lwm yam.
Kev faib tawm ntawm cov sealant
Cov tshuaj nplaum tuaj yeem muab faib ua cov tshuaj nplaum ywj pheej, cov kua nplaum sib khi thiab peb pawg ntawm cov khoom siv sib khi.
Raws li kev faib tawm tshuaj lom neeg:Nws muaj peev xwm muab faib ua roj hmab, roj hmab, roj av, thiab roj av polymer sealant. Txoj kev faib tawm no tuaj yeem nrhiav tau cov yam ntxwv ntawm cov ntaub ntawv polymer, txiav txim siab lawv qhov kub thiab txias, kev sib khi, thiab kev hloov pauv mus rau ntau yam xov xwm.
Hom roj hmab:Hom tshuaj sealant no yog ua los ntawm roj hmab. Cov roj hmab feem ntau siv yog polysulfide roj hmab, silicone roj hmab, polyurethane roj hmab, neoprene roj hmab thiab butyl roj hmab.
Hom tshuaj:Hom tshuaj sealant no yog ua los ntawm cov resin. Cov resins uas siv ntau yog epoxy resin, unsaturated polyester resin, phenolic resin, polyacrylic resin, polyvinyl chloride resin, thiab lwm yam.
Ua los ntawm roj:Hom roj nplaum no yog ua los ntawm roj. Cov roj uas siv ntau yog ntau yam roj zaub xws li roj linseed, roj castor thiab roj tung, thiab cov roj tsiaj xws li roj ntses.
Kev faib tawm raws li daim ntawv thov:nws muaj peev xwm muab faib ua hom kub siab, hom tiv taus txias, hom siab thiab lwm yam.
Kev faib tawm raws li cov khoom tsim zaj duab xis:Nws muaj peev xwm muab faib ua hom nplaum qhuav, hom qhuav tev tau, hom tsis nplaum qhuav thiab hom semi-qhuav viscoelastic.
Kev faib tawm los ntawm kev siv:Nws muaj peev xwm muab faib ua cov khoom siv foob rau kev tsim kho, cov khoom siv foob rau tsheb, cov khoom siv rwb thaiv tsev, cov khoom siv ntim khoom, cov khoom siv foob rau kev khawb av thiab lwm hom.
Raws li kev ua tau zoo tom qab kev tsim kho:Nws muaj ob hom: cov tshuaj nplaum uas kho tau thiab cov tshuaj nplaum uas kho tau ib nrab. Ntawm lawv, cov tshuaj nplaum uas kho tau muaj ob hom: tawv thiab yoog tau. Cov tshuaj nplaum uas tawv yog khov tom qab vulcanization lossis solidification, thiab tsis tshua muaj elasticity, tsis tuaj yeem khoov tau, thiab feem ntau cov seams tsis tuaj yeem txav mus los; cov tshuaj nplaum uas yoog tau yog elastic thiab mos tom qab vulcanization. Cov tshuaj nplaum uas tsis kho tau yog cov tshuaj nplaum uas khov tau mos uas tseem tswj tau cov tackifier uas tsis qhuav tom qab tsim kho thiab txuas ntxiv mus rau qhov chaw.
Lub sijhawm tshaj tawm: Lub Ob Hlis-18-2022