Silicone sealant ama koollada waa shey awood badan, dabacsanaan leh oo loo isticmaali karo codsiyo badan oo kala duwan. In kasta oo shaabadda silikoonku aanu u xoog badnayn sida kuwa wax lagu xidho ama xabagta, haddana silikoon-ku-xidhayuhu aad ayuu u dabacsan yahay, xitaa marka uu si buuxda u engego amadaaweeyay. Xirmooyinka Silikoonku waxa kale oo ay u adkeysan kartaa heerkul aad u sarreeya, taas oo ka dhigaysa mid ku habboon codsiyada la ildaran kulaylka sarreeya, sida gaasaska mishiinka.
Qalabka silikoon ee la daaweeyay wuxuu muujinayaa iska caabbinta cimilada heer sare ah, caabbinta gabowga, caabbinta UV, caabbinta ozone, iska caabbinta heerkulka sare iyo hoose, caabbinta gariirka, caabbinta qoyaanka, iyo sifooyinka biyuhu; sidaas darteed, codsiyadoodu aad bay u ballaaran yihiin. Sanadihii 1990-meeyadii, waxaa badanaa loo isticmaali jiray isku-xidhka iyo xiridda warshadaha galaaska, sidaas darteed waxaa badanaa loo yaqaan "xabagta galaaska."
Sawirka ugu sarreeya: Silikoon la daweeyay
Sawirka bidix: Xirmooyinka durbaanka ee silikoonka
Silicone sealant waxay caadi ahaan ku salaysan tahay 107(hydroxy-treminated polydimethylsiloxane), waxayna ka kooban tahay maaddooyin ay ka mid yihiin polymers-culus-molecular-culus, plasticizers, fillers, trans-linking agents, coupling agents, catalysts, iwm Saliida, Saliida cad, iwm carbonate, silica qiiqa leh, iyo walxo kale.
Xirmooyinka silikoonku waxay ku yimaadaan qaabab kala duwan oo kala duwan.
Marka loo eego nooca kaydinta, waxa loo qaybiyaa: laba (multi) qaybood iyo hal qayb.
Laba (multi) qaybood macnaheedu waa in silikoon loo qaybiyay laba kooxood (ama in ka badan laba) qaybood A iyo B, qayb kasta oo kaligiis ma samayn karo daaweyn, laakiin ka dib marka labada qaybood (ama in ka badan) qaybaha la isku daro, waxay noqon doonaan soo saar falcelin daawaynta isku-dhafan si ay u sameeyaan elastomers.
Isku darka waa in isla markiiba la sameeyaa ka hor inta aan la isticmaalin, taas oo ka dhigaysa nooca silikoon-ku-dhejinta halkii ay adag tahay in la isticmaalo.
Xirmooyinka silikoonku waxa kale oo laga yaabaa inay u yimaadaan sida hal badeeco, iyada oo aan la isku qasin loo baahnayn. Hal nooc oo ka mid ah alaabada silikoonka ah ayaa la yiraahdaaHeerkulka qolka vulcanizing(RTV). Noocaan daboolka ah wuxuu bilaabaa inuu bogsado isla marka uu hawada soo galo - ama, si ka sii saxsan, qoyaanka hawada. Sidaa darteed, waxaa lagama maarmaan ah in aad si degdeg ah u shaqeyso markaad isticmaalayso RTV silikoon sealant.
Silikoon-ka kooban oo hal qayb ah ayaa qiyaas ahaan loo qaybin karaa: nooca deacidification, nooca dealcoholization, nooca deketoxime, nooca deacetone, nooca deamidation, nooca dehydroxylamine, iwm. marka loo eego wakiilada crosslinking ee kala duwan (ama molecules yar yar oo la abuuray inta lagu jiro daaweynta) la isticmaalo. Waxaa ka mid ah, nooca deacidification, nooca dealcoholization iyo nooca deketoxime ayaa inta badan lagu isticmaalaa suuqa.
Nooca deacidification waa methyl triacetoxysilane (ama ethyl triacetoxysilane, propyl triacetoxysilane, iwm.) sida wakiilka crosslinking, kaas oo soo saara acetic acid inta lagu guda jiro daaweynta, oo caadi ahaan loo yaqaan "xabag acid". Faa'iidooyinkeedu waa: xoog wanaagsan iyo daahfurnaan, xawaaraha daaweynta degdega ah. Khasaarooyinku waa: urta acetic acid ee xanaaqa, daxalka biraha.
Nooca alkoholization-ku waa methyl trimethoxysilane (ama vinyl trimethoxysilane, iwm.) sida wakiilka isgoysyada, habka daawaynta waxay soo saartaa methanol, oo caadi ahaan loo yaqaan "koolada nooca alcohol". Faa'iidooyinka ay leedahay waa: ilaalinta deegaanka, aan daxalka lahayn. Khasaaraha: xawaaraha daaweynta oo gaabis ah, nolosha shelf ayaa xoogaa liidata.
Nooca Deketo oxime waa methyl tributyl ketone oxime silane (ama vinyl tributyl ketone oxime silane, iwm.) sida wakiilka iskutallaabta, kaas oo soo saara oxime butanone inta lagu jiro daaweynta, oo loo yaqaan "oxime type koollada". Faa'iidooyinkeedu waa: ma laha ur aad u weyn, ku dhejis wanaagsan oo qalabyo kala duwan ah. Khasaaro: daxalka naxaasta.
Sida laga soo xigtay isticmaalka alaabta loo qaybiyey: shaabad qaabdhismeed, shaambad u adkaysta cimiladu, albaabka iyo daaqadaha xidhitaan, isku-xidhka xidhidhka, dab-demiska, shaadhka caarada, xidhidh heerkul sare ah.
Sida laga soo xigtay midabka sheyga si ay u dhibcood: midabka caadiga ah madow, poselin cad, hufan, lacag cawl 4 nooc, midabo kale waxaan ku fulin karnaa si waafaqsan shuruudaha macaamiisha toning.
Waxaa jira noocyo kala duwan oo kale, qaabab tignoolajiyada horumarsan oo silikoon ah sidoo kale. Hal nooc, oo loo yaqaancadaadis xasaasi ahSilicone sealant, waxay leedahay takid joogto ah waxayna ku dheggantaa cadaadis ula kac ah - si kale haddii loo dhigo, in kasta oo ay had iyo jeer noqon doonto "dhegdheg", ma dhegi doono haddii shay si fudud u cadaydo ama ku nasto. Nooc kale ayaa loo yaqaanUV or shucaac daaweeyaySilicone sealant, oo adeegsata iftiinka ultraviolet si ay u daaweyso xuubka. Ugu dambeyntii,heerkulbeeggaSilikoonku wuxuu u baahan yahay soo-gaadhista kulaylka si loo daweeyo.
Silicone sealant waxaa loo isticmaali karaa codsiyo kala duwan. Noocaan shaabadeynta ah waxaa inta badan loo adeegsadaa gawaarida iyo codsiyada la xiriira, sida gargaarka lagu xiro mishiinka, oo leh ama aan lahayn gaasaska. Sababtoo ah dabacsanaanteeda sare, shaabaduhu sidoo kale waa doorasho wanaagsan oo loogu talagalay hiwaayad ama farshaxanno badan.
Waqtiga boostada: Dec-29-2023
