Ku bar sida loo doorto wakiilka daweynta resin epoxy?

Wakiilka daaweynta epoxy waa walax kiimiko ah oo loo isticmaalo daawayntaxabagta epoxyadiga oo si kiimiko ah uga falcelinaya kooxaha epoxy-ga ee xabagta epoxy-ga si ay u sameeyaan qaab-dhismeed isku-xiran, sidaas awgeed xadhkaha epoxy-ga ka dhigaya mid adag oo adag.
Doorka aasaasiga ah ee wakiilada daaweynta epoxy waa in la wanaajiyo adkaanta, caabbinta naaxinta, iyo caabbinta kiimikada ee resins epoxy, iyaga oo ka dhigaya wax waara oo waara, taas oo qayb muhiim ah ka ah isku-dhafka epoxy pultruded. Maqaalkani wuxuu wadaagayaa sida loo doorto wakiilka saxda ah ee epoxy-curing iyadoo lagu saleynayo arrimo kala duwan:
Marka loo eego shuruudaha daaweynta
- Ku-daaweynta heerkulka qolka: Haddii loo baahan yahay in si degdeg ah loogu daweeyo heerkulka qolka, aliphatic amine therapy agents sida ethylenediamine iyo diethylenetriamine waa la dooran karaa; haddii xawaaraha daaweynta aan loo baahnayn inuu sarreeyo, oo diiradda saaro waqtiga hawlgalka, wakiilada daaweynta polyamide waa la dooran karaa.
- Daawaynta kulaylka: U adkaysiga kulaylka sarreeya iyo guryaha farsamada, wakiilada amine caraf udgoon, sida diaminodiphenylsulfone (DDS), iwm, ayaa loo isticmaali karaa; daawaynta degdega ah ee heerkulka hooseeya, wakiilada daawaynta amine ee la beddelay ee leh dardar-geliyayaasha waa la tixgelin karaa.
- Ku-daaweynta xaaladaha gaarka ah: si loogu daweeyo jawi qoyan, wakiilka daawaynta qoyan ayaa la dooran karaa; Nidaamka daawaynta iftiinka, wakiilka daawaynta leh photoinitiator iyo epoxy acrylate waa la dooran karaa.
Marka loo eego shuruudaha waxqabadka
- Qalabka makaanikada: haddii loo baahan yahay qallafsanaan sare iyo xoog sare, wakiilada daaweynta anhydride waa la dooran karaa; Haddii dabacsanaan wanaagsan iyo iska caabin saameyn leh loo baahan yahay, wakiilada daaweynta adag sida caagga polysulfide ayaa aad ugu habboon.
- caabbinta kiimikada: shuruudaha sare ee acid, alkali, iyo caabbinta dareeraha,resin phenolicWakiilka daawaynta ama qaar ka mid ah wakiilka daawaynta amiin ee la beddelay ayaa aad ugu habboon.
- Iska caabbinta kulaylka: Deegaannada heerkulku sarreeyo, sida ka sarreeya 200 ℃, wakiilka daawaynta silikoon ama wakiilka daaweynta leh qaab-dhismeedka polyaromatic ayaa la tixgelin karaa.
Marka loo eego jawiga isticmaalka
- Bey'adda gudaha: shuruudaha ilaalinta deegaanka ee sarreeya, wakiilka daaweynta epoxy-ku salaysan ee biyaha ama wakiilka daawaynta amine aliphatic hooseeya ayaa ku habboon.
- Deegaanka dibadda: iska caabin cimilo wanaagsan ayaa loo baahan yahay, wakiilada daawaynta alicyclic amine leh caabbinta UV ee wanaagsan ayaa ku habboon.
- Deegaanno gaar ah: Deegaannada leh shuruudaha nadaafadda sare sida cuntada iyo daawada, kuwa aan sunta ahayn ama sunta hoose ee epoxy-ga ah sida wakiilada daaweynta polyamide-ka ee badbaadada cuntada ayaa loo baahan yahay in la doorto.
Tixgeli shuruudaha habsocodka
-Waqtiga hawlgalka: Wakhti dheer oo qaliin ah, dooro wakiilka daawaynta qarsoon, sida dicyandiamide, iwm
- Muuqaalka Daawaynta: Si aad u hesho muuqaal daawaynta aan midab lahayn oo hufan, dooro alicyclic amine daawaynta wakiilada, iwm. Shuruudaha midabka hooseeya, dooro wakiilada amine guud ee qiime jaban.
Marka lagu daro qodobka kharashka
- Marka la eego dhismaha buuxinta shuruudaha waxqabadka, is barbar dhig qiimaha iyo qiyaasta wakiilada daaweynta kala duwan. Qiimaha wakiilada amine-ka caadiga ah waa mid aad u hooseeya, halka qaar ka mid ah wakiilada wax qabad ee gaarka ah sida fluorine-ka ku jira iyo wakiilada daawada silikoon-ku jira ay aad qaali u yihiin.