Saliidda dahaarka Varnish-ka, oo sidoo kale loo yaqaan rinjiga dahaarka ama varnish, waxay door ka ciyaartaa dahaarka, iska caabbinta qoyaanka, kala firdhinta kulaylka, iyo bogsashada qalabka wax lagu beddelo ee soo noqnoqda badan.
Sida ku cad qaab-dhismeedkooda kiimikada ee kala duwan, saliidaha dahaarka leh waxaa hadda loo qaybin karaa saddex qaybood: oo ku salaysan polyester; fasalka Resin; walxaha siliceous. Saliidda dahaarka leh ee Polyester waxaa inta badan lagu diyaariyaa falcelinta dahaarka ee polyols iyo polyacids, badanaana waa dareere aan midab lahayn ama huruud khafiif ah oo hufan. Waxay leedahay danab jab sare iyo iska caabin mugga, taas oo si wax ku ool ah uga hortagi karta hadda inay dhex marto oo ay bixiso dahaar wanaagsan. Waxay leedahay waxtarka ugu sarreeya ee saddexda nooc ee saliidaha dahaarka leh waana saliidda dahaarka leh ee ugu badan ee loo isticmaalo transformers-ka soo noqnoqda sare leh.
Si kastaba ha ahaatee, saliidda dahaarka leh ee polyester-ka waxay leedahay dahaar sare, dahaarkeedana waxaa si weyn u saameeya heerkulka. Dahaarku si weyn ayuu u kordhaa heerkulka hooseeya, taas oo si weyn u saamaysa dahaarkeeda iyo saamaynta dahaarka kulaylka. Sidaa darteed, marka la isticmaalo, waxaa badanaa lagama maarmaan ah in lagu daro dahaar si loo yareeyo dahaarka saliidda dahaarka leh, loo ilaaliyo dahaar wanaagsan, iyo in la hubiyo in isbeddelka soo noqnoqda ee sare si buuxda loo quusin karo inta lagu jiro dahaarka. Cufnaanta gaarka ah ee saliidda dahaarka leh ee polyester-ka iyo dahaarka leh guud ahaan waa qiyaastii 0.9, kaas oo lagu tijaabin karo mitir cuf-isjiidadka gaarka ah.
Marka labaad, saliidda dahaarka polyester-ka waxay u nugul tahay oksaydheynta iyo burburka heerkulka sare, iyadoo soo saarta walxo aashito ah iyo wasakh, taas oo saameysa shaqada caadiga ah ee badeecada waxayna xaddidaysaa isticmaalka jawiga heerkulka sare. Intaa waxaa dheer, marka la barbar dhigo saliidaha dahaarka resin iyo siliceous, saliidaha dahaarka polyester-ka waxay leeyihiin qiimayaal lumis dielectric ah oo sarreeya, taasoo la macno ah in luminta tamarta ay ka weyn tahay meelaha korontada ee beddelka ah waxayna si xad dhaaf ah u saameyn doontaa hufnaanta hawlgalka ee badeecada.
Waqtigan xaadirka ah, saliidda dahaarka leh ee polyester-ka ayaa si caadi ah loogu isticmaalaa dahaarka dahaarka leh, sida transformers-ka soo noqnoqda sare leh, matoorada, fiilooyinka, iwm., kuwaas oo hagaajin kara dahaarka, kulaylka, iyo iska caabbinta qoyaanka ee alaabada isla markaana kordhin kara cimrigooda adeegga. Saliidda dahaarka leh ee ku salaysan resin waxay inta badan ka kooban tahay isku-dhisyo polymer dabiici ah, oo badanaa ku jira qaab dareere ah ama adag, oo leh iska caabin wanaagsan oo xirasho ah.
Saliidaha dahaarka ku salaysan resin waxaa lagu samayn karaa iyadoo la hagaajinayo saamiga walxaha ceeriin iyo xaaladaha falcelinta si loo soo saaro dareerayaasha resin oo leh dahaar hoose. Dareerayaashani waxay leeyihiin sifooyin dareere wanaagsan iyo dahaar, guud ahaanna uma baahna dareere dheeraad ah. Xaaladaha kululaynta, saliidda dahaarka ku salaysan resin sidoo kale way jilcin kartaa ama dhalaali kartaa. Marka la barbardhigo saliidda dahaarka ee polyester, saliidda dahaarka ku salaysan resin waxay leedahay xasillooni sare, waxqabad dahaar koronto oo wanaagsan, iyo qiimo sare. Waxaa badanaa loo isticmaalaa dahaarka transformers-yada kala duwan, terminaalka korontada, iyo kala-goysyada. Saliidda dahaarka ku salaysan siliceous waxay inta badan ka kooban tahay isku-dhisyo silikoon dabiici ah sida polydimethylsiloxane. Badanaa waa dareere aan midab lahayn ama huruud khafiif ah oo hufan oo leh dahaar aad u hooseeya iyo dahaar wanaagsan.
Marka la barbardhigo saliidaha dahaarka polyester iyo resin, saliidaha dahaarka siliceous waxay leeyihiin qiimo lumis dielectric ah oo hooseeya, khasaaro tamar yar oo hoos yimaada goobaha korontada ee beddelka ah, iyo hufnaan hawlgal oo sare oo wax soo saar ah. Waxa kale oo ay leedahay iska caabin wanaagsan iyo iska caabin daadasho, waxayna ilaalin kartaa waxqabadka xasilloon ee deegaannada aadka u daran. Saliidda dahaarka siliceous waxaa loo isticmaali karaa dahaarka deegaannada aadka u daran sida danab sare, heerkul sare, qoyaan sare, iyo qabow daran, taasoo hagaajinaysa heerka dahaarka iyo isku halaynta hawlgalka ee alaabada. Barta dabka ee sare iyo sifooyinka is-deminta waxay siiyaan saliidaha dahaarka siliceous faa'iidooyin muhiim ah oo ku saabsan badbaadada dabka. Si kastaba ha ahaatee, saliidda dahaarka siliceous waxay leedahay kharash sare oo guud ahaan looma isticmaalo transformers-ka soo noqnoqda badan.
Waqtiga boostada: Abriil-13-2026
