Glycidyl Methacrylate (GMA) ke monomer e nang le dibonto tse pedi tsa acrylate le dihlopha tsa epoxy. Bonto e habeli ya acrylate e na le reactivity e phahameng, e ka feta karabelong ya polymerization ya boyona, mme e ka boela ya kopanngwa le di-monomer tse ding tse ngata; sehlopha sa epoxy se ka arabela ka hydroxyl, amino, carboxyl kapa acid anhydride, sa hlahisa dihlopha tse sebetsang haholoanyane, ka hona sa tlisa tshebetso e eketsehileng sehlahisweng. Ka hona, GMA e na le mefuta e mengata haholo ya ditshebediso ho synthesis ya organic, synthesis ya polymer, phetoho ya polymer, thepa e kopaneng, thepa ya ultraviolet e phekolang, dikobo, dikhomaretsi, letlalo, pampiri ya dikhemikhale ya faeba, ho hatisa le ho daya, le masimo a mang a mangata.

Tšebeliso ea GMA ho penteng ea phofo

Liaparo tsa phofo ea acrylic ke sehlopha se seholo sa liaparo tsa phofo, tse ka aroloang ka li-resin tsa hydroxyl acrylic, li-resin tsa carboxyl acrylic, li-resin tsa glycidyl acrylic, le li-resin tsa amido acrylic ho latela li-agent tse fapaneng tsa ho phekola tse sebelisoang. Har'a tsona, glycidyl acrylic resin ke resin e koahelang phofo e sebelisoang haholo. E ka etsoa lifilimi tse nang le li-agent tse phekolang tse kang polyhydric hydroxy acids, polyamines, polyols, polyhydroxy resin, le hydroxy polyester resin.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene hangata li sebelisoa bakeng sa polymerization ea free radical ho kopanya resin ea acrylic ea mofuta oa GMA, 'me dodecyl dibasic acid e sebelisoa e le moemeli oa ho phekola. Seaparo sa phofo ea acrylic se lokisitsoeng se na le ts'ebetso e ntle. Ts'ebetso ea ho kopanya e ka sebelisa benzoyl peroxide (BPO) le azobisisobutyronitrile (AIBN) kapa metsoako ea tsona e le li-starters. Bongata ba GMA bo na le tšusumetso e kholo ts'ebetsong ea filimi ea ho koahela. Haeba bongata bo le bonyenyane haholo, tekanyo ea ho kopanya ea resin e tlase, lintlha tsa ho kopanya tse phekolang li fokola, bongata ba ho kopanya ha filimi ea ho koahela ha boa lekana, 'me khanyetso ea ts'usumetso ea filimi ea ho koahela e fokola.

Tšebeliso ea GMA phetohong ea polymer

GMA e ka hokelloa holim'a polymer ka lebaka la boteng ba acrylate habeli e nang le ts'ebetso e phahameng, 'me sehlopha sa epoxy se ka har'a GMA se ka arabela le lihlopha tse ling tse fapaneng tse sebetsang ho theha polymer e sebetsang. GMA e ka hokelloa ho polyolefin e fetotsoeng ka mekhoa e kang ho kenya tharollo, ho kenya metsoako ka ho qhibiliha, ho kenya metsoako ka mokhoa o tiileng, ho kenya metsoako ka mahlaseli, jj., 'me e ka boela ea theha li-copolymer tse sebetsang ka ethylene, acrylate, jj. Li-polymer tsena tse sebetsang li ka sebelisoa e le li-agent tse tiisang ho tiisa polasetiki ea boenjiniere kapa e le li-compatibilizer ho ntlafatsa ho lumellana ha litsamaiso tsa motsoako.

Sethatho se sebediswang hangata bakeng sa phetoho ya polyolefin ka GMA ke dicumyl peroxide (DCP). Batho ba bang ba boetse ba sebedisa benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Dithatho tse kang oxy-2,5-dimethyl-3-hexyne (LPO) kapa 1,3-di-tert-butyl cumene peroxide. Har'a tsona, AM e na le phello e kgolo ho fokotseng ho senyeha ha polypropylene ha e sebediswa e le sethatho. Ho kenngwa ha GMA ho polyolefin ho tla lebisa phetohong ya sebopeho sa polyolefin, e leng se tla baka phetoho ya thepa ya bokahodimo ba polyolefin, thepa ya rheological, thepa ya mocheso le thepa ya mechini. Polyolefin e fetotsweng ke GMA e eketsa polarity ya ketane ya dimolek'hule mme ka nako e ts'oanang e eketsa polarity ya bokahodimo. Ka hona, sekhutlo sa ho ikopanya le bokahodimo se a fokotseha ha sekgahla sa ho kenngwa se ntse se eketseha. Ka lebaka la diphetoho sebopehong sa polymer kamora phetoho ya GMA, e tla boela e ame thepa ya yona ya kristale le ya mechini.

Tšebeliso ea GMA ho etseng resin e folisoang ke UV

GMA e ka sebelisoa ho kopanyeng li-resin tse folisoang ke UV ka litsela tse fapaneng tsa maiketsetso. Mokhoa o mong ke ho qala ka ho fumana prepolymer e nang le lihlopha tsa carboxyl kapa amino ka har'a ketane e ka thoko ka radical polymerization kapa condensation polymerization, ebe o sebelisa GMA ho arabela le lihlopha tsena tse sebetsang ho hlahisa lihlopha tse utloang khanya ho fumana resin e folisoang. Ho copolymerization ea pele, li-comonomers tse fapaneng li ka sebelisoa ho fumana li-polymer tse nang le thepa e fapaneng ea ho qetela. Feng Zongcai le ba bang ba sebelisitse 1,2,4-trimellitic anhydride le ethylene glycol ho arabela ho kopanyeng li-polymer tse nang le makala a mangata, ebe ba hlahisa lihlopha tse utloang khanya ka GMA ho qetella ba fumane resin e folisoang khanya e nang le alkali e qhibilihisang hamolemo. Lu Tingfeng le ba bang ba sebelisitse poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid le hydroxyethyl acrylate ho qala ka ho kopanya prepolymer e nang le dibonto tse peli tse sebetsang tse nang le photosensitive, ebe ba e kenya ka GMA. Dibonto tse peli tse ka folisoang habonolo di fokotswa ke triethylamine ho fumana emulsion ya polyurethane acrylate e tsamayang ka metsi.