Glycidyl Methacrylate (GMA) waa monomer leh labada xidhmo ee acrylate double iyo kooxaha epoxy. Xidhmo labanlaab ah oo Acrylate ah waxay leedahay falcelin sare, waxay mari kartaa falgal is-polymerization ah, waxaana sidoo kale lagu koobi karaa monomers kale oo badan; kooxda epoxy waxay la falgeli kartaa hydroxyl, amino, carboxyl ama acid anhydride, taasoo soo bandhigaysa kooxo badan oo shaqeynaya, taasoo keenaysa shaqeyn dheeraad ah badeecada. Sidaa darteed, GMA waxay leedahay codsiyo aad u ballaaran oo ku saabsan isku-darka dabiiciga ah, isku-darka polymer-ka, wax-ka-beddelka polymer-ka, walxaha isku-dhafan, walxaha daaweynta ultraviolet-ka, dahaarka, dhejiska, maqaarka, sameynta warqadaha kiimikada ee fiber-ka, daabacaadda iyo rinjiyeynta, iyo goobo kale oo badan.

Adeegsiga GMA ee dahaarka budada

Dahaarka budada acrylic waa qayb weyn oo ka mid ah dahaarka budada, kuwaas oo loo qaybin karo resins hydroxyl acrylic, resins carboxyl acrylic, resins glycidyl acrylic, iyo resins amido acrylic iyadoo loo eegayo wakiilada daaweynta kala duwan ee la isticmaalo. Kuwaas waxaa ka mid ah, resin acrylic glycidyl waa resin dahaarka budada ugu isticmaalka badan. Waxaa loo samayn karaa filimaan leh wakiilo dahaar ah sida polyhydric hydroxy acids, polyamines, polyols, resins polyhydroxy, iyo resins polyester hydroxy.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene waxaa badanaa loo isticmaalaa polymerization-ka xorta ah ee xagjirka ah si loo sameeyo resin acrylic nooca GMA, iyo dodecyl dibasic acid waxaa loo isticmaalaa wakiilka daaweynta. Dahaarka budada acrylic ee la diyaariyey wuxuu leeyahay waxqabad wanaagsan. Habka isku-darka wuxuu isticmaali karaa benzoyl peroxide (BPO) iyo azobisisobutyronitrile (AIBN) ama isku-darka ay yihiin bilowayaasha. Tirada GMA waxay saameyn weyn ku leedahay waxqabadka filimka dahaarka. Haddii qaddarku aad u yar yahay, heerka isku-xirka resin-ka ayaa hooseeya, dhibcaha isku-xirka daaweynta ayaa yar, cufnaanta isku-xirka ee filimka dahaarka kuma filna, iyo iska caabbinta saameynta ee filimka dahaarka ayaa liidata.

Adeegsiga GMA ee wax ka beddelka polymer-ka

GMA waxaa lagu tallaali karaa polymer-ka sababtoo ah joogitaanka isku-xidhka laba-jibbaaran ee acrylate oo leh firfircooni sare, kooxda epoxy-ga ee ku jirta GMA waxay la falgeli kartaa kooxo kale oo shaqeynaya si ay u sameeyaan polymer shaqeynaya. GMA waxaa lagu tallaali karaa polyolefin wax laga beddelay iyadoo la adeegsanayo habab sida daaweynta xalka, daaweynta dhalaalka, daaweynta wejiga adag, daaweynta shucaaca, iwm., waxayna sidoo kale samayn kartaa copolymers shaqeynaya oo leh ethylene, acrylate, iwm. Polymers-kan shaqeynaya waxaa loo isticmaali karaa sidii wakiilo adkeynaya si loo adkeeyo balaastikada injineernimada ama sidii kuwo iswaafaqsan si loo hagaajiyo iswaafajinta nidaamyada isku-dhafka.

Soo-saaraha inta badan loo isticmaalo wax-ka-beddelka tallaalka polyolefin ee GMA waa dicumyl peroxide (DCP). Dadka qaar ayaa sidoo kale isticmaala benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Soo-saareyaasha sida oxy-2,5-dimethyl-3-hexyne (LPO) ama 1,3-di-tert-butyl cumene peroxide. Kuwaas waxaa ka mid ah, AM waxay saameyn weyn ku leedahay yaraynta burburka polypropylene marka loo isticmaalo sidii bilowe. Ku-tallaalidda GMA ee polyolefin waxay horseedi doontaa isbeddelka qaab-dhismeedka polyolefin, kaas oo sababi doona isbeddelka sifooyinka dusha sare ee polyolefin, sifooyinka rheological, sifooyinka kulaylka iyo sifooyinka farsamada. Polyolefin-ka wax laga beddelay ee GMA wuxuu kordhiyaa polarity-ga silsiladda molecular-ka isla markaana wuxuu kordhiyaa polarity-ga dusha sare. Sidaa darteed, xagasha taabashada dusha sare way hoos u dhacdaa marka heerka tallaalku kordho. Sababtoo ah isbeddellada qaab-dhismeedka polymer-ka ka dib wax-ka-beddelka GMA, waxay sidoo kale saameyn doontaa sifooyinkeeda kristalinta iyo farsamada.

Adeegsiga GMA ee ku saabsan soo saarista resin UV-ga la daweyn karo

GMA waxaa loo isticmaali karaa isku-darka resins-ka UV-ga ee la daweyn karo iyada oo loo marayo wadooyin kala duwan oo macmal ah. Hal hab ayaa ah in marka hore la helo prepolymer ka kooban carboxyl ama kooxo amino ah oo ku yaal silsiladda dhinaca iyada oo loo marayo polymerization-ka xagjirka ah ama polymerization-ka isku-dhafka ah, ka dibna la isticmaalo GMA si uu ula falgalo kooxahan shaqeynaya si loo soo bandhigo kooxaha xasaasiga ah ee sawir-qaadista si loo helo resin sawir-qaadista ah. Copolymerization-ka ugu horreeya, comonomers kala duwan ayaa loo isticmaali karaa in lagu helo polymers leh sifooyin kama dambays ah oo kala duwan. Feng Zongcai et al. waxay isticmaaleen 1,2,4-trimellitic anhydride iyo ethylene glycol si ay uga falceliyaan isku-darka polymers-ka isku-dhafka ah, ka dibna waxay soo bandhigeen kooxo sawir-qaadis ah iyada oo loo marayo GMA si ugu dambeyntii loo helo resin sawir-qaadis ah oo leh milmi alkali oo wanaagsan. Lu Tingfeng iyo kuwa kale waxay isticmaaleen poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid iyo hydroxyethyl acrylate si ay marka hore u sameeyaan prepolymer leh xidhmo labanlaab ah oo firfircoon oo sawir-qaadis leh, ka dibna ku soo bandhigaan GMA Xidhmo labanlaab ah oo iftiin leh ayaa lagu dhexdhexaadiyaa triethylamine si loo helo emulsion polyurethane acrylate oo biyaha ku jira.