Glycidyl Methacrylate (GMA) ke monoma e nang le li-acrylate double bond le lihlopha tsa epoxy. Acrylate double bond e na le reactivity e phahameng, e ka ba le maikutlo a ho iketsetsa polymerization, hape e ka kopanngoa le li-monomers tse ling tse ngata; sehlopha sa epoxy se ka sebetsana le hydroxyl, amino, carboxyl kapa anhydride ea acid, ho hlahisa lihlopha tse sebetsang haholoanyane, ka hona ho tlisa ts'ebetso e eketsehileng ho sehlahisoa. Ka hona, GMA e na le mefuta e mengata e fapaneng ea ts'ebeliso ho organic synthesis, polymer synthesis, polymer modified, lisebelisoa tse kopaneng, lisebelisoa tsa ho folisa mahlaseli a kotsi, likoahelo, likhomaretsi, letlalo, ho etsa pampiri ea fiber ea lik'hemik'hale, khatiso le ho daea, le likarolo tse ling tse ngata.

Tšebeliso ea GMA ka ho roala phofo

Liaparo tsa Acrylic powder ke sehlopha se seholo sa liphahlo tsa phofo, tse ka aroloang ka li-resin tsa hydroxyl acrylic, li-carboxyl acrylic resin, glycidyl acrylic resins, le li-amido acrylic resin ho latela mefuta e fapaneng ea pheko e sebelisitsoeng. Har'a tsona, glycidyl acrylic resin ke eona e sebelisoang ka ho fetesisa ea ho roala phofo. E ka etsoa lifilimi tse nang le lisebelisoa tse phekolang tse kang polyhydric hydroxy acids, polyamines, polyols, polyhydroxy resin, le hydroxy polyester resin.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene hangata e sebelisoa bakeng sa polymerization ea mahala ea radical ho kopanya mofuta oa GMA acrylic resin, 'me dodecyl dibasic acid e sebelisoa e le moemeli oa kalafo. Sekoaelo sa phofo sa acrylic se lokiselitsoeng se na le ts'ebetso e ntle. Mokhoa oa ho kopanya o ka sebelisa benzoyl peroxide (BPO) le azobisisobutyronitrile (AIBN) kapa metsoako ea bona e le ba qalang. Palo ea GMA e na le tšusumetso e kholo ts'ebetsong ea filimi ea ho roala. Haeba chelete e le nyane haholo, tekanyo ea crosslinking ea resin e tlaase, lintlha tsa ho folisa tse folisang li fokola, sekhahla sa crosslinking sa filimi ea ho roala ha sea lekana, 'me ho hanyetsa ha filimi ea ho roala ha hoa lekana.

Tšebeliso ea GMA ho phetoho ea polymer

GMA e ka hlomathiseletsoa holim'a polymer ka lebaka la boteng ba acrylate double bond e nang le ts'ebetso e phahameng, 'me sehlopha sa epoxy se fumanehang ho GMA se ka sebetsana le lihlopha tse ling tse fapaneng tse sebetsang ho etsa polymer e sebetsang hantle. GMA e ka hlomelloa ho polyolefin e fetotsoeng ka mekhoa e kang ho hlomathiseletsoa ka tharollo, ho qhibilihisa ho qhibiliha, ho hlomathiseletsoa ho tiileng, ho hlomathiseletsoa ka mahlaseli, joalo-joalo, 'me e ka boela ea etsa li-copolymers tse sebetsang hantle tse nang le ethylene, acrylate, joalo-joalo. ho tiisa lipolasetiki tsa boenjineri kapa joalo ka li-compatibilizer ho ntlafatsa tšebelisano ea litsamaiso tsa motsoako.

Moqapi o sebelisoang khafetsa bakeng sa phetoho ea graft ea polyolefin ke GMA ke dicumyl peroxide (DCP). Batho ba bang ba sebelisa benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Li-initiator tse kang oxy-2,5-dimethyl-3-hexyne (LPO) kapa 1,3-di-tert-butyl cumene peroxide. Har'a bona, AM e na le phello e kholo ho fokotsa ho senyeha ha polypropylene ha e sebelisoa e le mothehi. Ho hlomathiseletsoa ha GMA holim'a polyolefin ho tla lebisa phetohong ea sebopeho sa polyolefin, se tla baka phetoho ea thepa ea holim'a polyolefin, thepa ea rheological, thepa ea mocheso le thepa ea mochine. GMA graft-modified polyolefin e eketsa polarity ea ketane ea molek'hule mme ka nako e ts'oanang e eketsa polarity ea holim'a metsi. Ka hona, sebaka sa ho kopana le bokaholimo sea fokotseha ha sekhahla sa grafting se ntse se eketseha. Ka lebaka la liphetoho tsa sebopeho sa polymer ka mor'a phetoho ea GMA, e tla boela e ama thepa ea eona ea kristale le ea mechine.

Tšebeliso ea GMA ha ho etsoa resin e phekolehang ea UV

GMA e ka sebelisoa ha ho etsoa li-resin tse phekolehang tsa UV ka litsela tse fapaneng tsa maiketsetso. Mokhoa o mong ke ho qala ka ho fumana prepolymer e nang le carboxyl kapa lihlopha tsa amino ka lehlakoreng la ketane ka radical polymerization kapa condensation polymerization, ebe o sebelisa GMA ho sebetsana le lihlopha tsena tse sebetsang ho hlahisa lihlopha tsa photosensitive ho fumana resin e ka phekolehang. 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 et al. sebelisoa 1,2,4-trimellitic anhydride le ethylene glycol ho itšoara joang ho synthesize lipolymers hyperbranched, 'me joale hlahisa lihlopha photosensitive ka GMA ho qetella fumana resin photocurable ka solubility molemo alkali. Lu Tingfeng le ba bang ba sebelisitse poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid le hydroxyethyl acrylate ho qala ho etsa prepolymer e nang le li-photosensitive tse sebetsang ka bobeli tse sebetsang, ebe ba e hlahisa ka GMA Litlamo tse peli tse phekolehang habonolo li fokotsoa ke triethylamine ho fumana emulsion ea metsi a polyurethane acrylate.