Glycidyl Methacrylate (GMA) monomer ne wanda ke da duka biyun acrylate bonds da rukunin epoxy. Acrylate ninki biyu bond yana da babban reactivity, za a iya sha kai-polymerization dauki, kuma za a iya copolymerized tare da yawa sauran monomers; Ƙungiyar epoxy na iya amsawa tare da hydroxyl, amino, carboxyl ko acid anhydride, gabatar da ƙarin ƙungiyoyi masu aiki, ta haka yana kawo ƙarin ayyuka ga samfurin. Sabili da haka, GMA yana da aikace-aikacen da ya dace sosai a cikin haɗin gwiwar kwayoyin halitta, haɓakar polymer, gyare-gyaren polymer, kayan haɗin gwiwa, kayan warkarwa na ultraviolet, sutura, adhesives, fata, rubutun fiber na sinadarai, bugu da rini, da sauran fannoni da yawa.

Aikace-aikacen GMA a cikin murfin foda

Rubutun foda na acrylic babban nau'in kayan kwalliyar foda ne, wanda za'a iya raba shi zuwa hydroxyl acrylic resins, carboxyl acrylic resins, glycidyl acrylic resins, da amido acrylic resins bisa ga nau'ikan magunguna daban-daban da aka yi amfani da su. Daga cikin su, glycidyl acrylic guduro shi ne mafi amfani da foda shafi guduro. Ana iya kafa shi a cikin fina-finai tare da magunguna irin su polyhydric hydroxy acids, polyamines, polyols, polyhydroxy resins, da hydroxy polyester resins.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene yawanci ana amfani dashi don polymerization na radical don haɗa nau'in GMA acrylic resin, kuma ana amfani da dodecyl dibasic acid azaman wakili na warkewa. Acrylic foda shafi shirya yana da Kyakkyawan aiki. Tsarin kira na iya amfani da benzoyl peroxide (BPO) da azobisisobutyronitrile (AIBN) ko gaurayawan su azaman masu farawa. Adadin GMA yana da tasiri mai girma akan aikin fim ɗin mai rufi. Idan adadin ya yi ƙanƙara, ƙimar ƙetare na guduro ya yi ƙasa kaɗan, wuraren da aka keɓe masu warkewa ba su da yawa, ƙarancin fim ɗin da aka rufe bai isa ba, kuma tasirin juriya na fim ɗin ya zama mara kyau.

Aikace-aikacen GMA a cikin gyaran polymer

Ana iya dasa GMA akan polymer saboda kasancewar haɗin haɗin acrylate tare da babban aiki, kuma ƙungiyar epoxy da ke cikin GMA na iya amsawa tare da wasu ƙungiyoyi masu aiki iri-iri don samar da polymer mai aiki. GMA za a iya grafted zuwa polyolefin da aka gyara ta hanyoyi kamar maganin grafting, narke grafting, m lokaci grafting, radiation grafting, da dai sauransu, kuma yana iya samar da functionalized copolymer tare da ethylene, acrylate, da dai sauransu Wadannan functionalized polymers za a iya amfani da matsayin toughening jamiái. toughen injiniyoyi robobi ko a matsayin compatibilizers don inganta daidaituwar tsarin gauraya.

Mai farawa akai-akai amfani da shi don gyaran gyare-gyare na polyolefin ta GMA shine dicumyl peroxide (DCP). Wasu mutane kuma suna amfani da benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Masu farawa irin su oxy-2,5-dimethyl-3-hexyne (LPO) ko 1,3-di-tert-butyl cumene peroxide. Daga cikin su, AM yana da tasiri mai mahimmanci akan rage lalacewar polypropylene lokacin amfani da shi azaman mai farawa. Gyaran GMA akan polyolefin zai haifar da canji na tsarin polyolefin, wanda zai haifar da canji na polyolefin na surface Properties, rheological Properties, thermal Properties da inji Properties. GMA graft-gyara polyolefin yana ƙara polarity na sarkar kwayoyin kuma a lokaci guda yana ƙara girman polarity. Sabili da haka, kusurwar lamba ta ƙasa tana raguwa yayin da ƙimar grafting ya karu. Saboda canje-canje a cikin tsarin polymer bayan gyaran GMA, zai kuma shafi kaddarorin sa na crystalline da inji.

Aikace-aikace na GMA a cikin kira na UV curable guduro

Ana iya amfani da GMA a cikin haɗar resins masu warkarwa ta UV ta hanyoyi daban-daban na roba. Hanya ɗaya ita ce fara samun prepolymer mai ɗauke da carboxyl ko ƙungiyoyin amino akan sarkar gefe ta hanyar radical polymerization ko polymerization condensation, sannan a yi amfani da GMA don amsawa tare da waɗannan ƙungiyoyi masu aiki don gabatar da ƙungiyoyi masu ɗaukar hoto don samun guduro mai ɗaukar hoto. A cikin copolymerization na farko, ana iya amfani da comonomers daban-daban don samun polymers tare da kaddarorin ƙarshe daban-daban. Feng Zongcai et al. An yi amfani da 1,2,4-trimellitic anhydride da ethylene glycol don amsawa don haɗa nau'in polymers na hyperbranched, sa'an nan kuma gabatar da ƙungiyoyi masu daukar hoto ta hanyar GMA don a ƙarshe samun resin photocurable tare da mafi kyawun alkali solubility. Lu Tingfeng da sauransu sun yi amfani da poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid da hydroxyethyl acrylate don fara hada wani prepolymer tare da photosensitive aiki biyu shaidu, sa'an nan kuma gabatar da shi ta hanyar GMA Ƙarin haske-curable biyu shaidu suna neutralized ta triethylamine zuwa samu waterborne polyurethane acrylate emulsion.