Glycidyl Methacrylate (GMA) bụ monomer nke nwere njikọ abụọ acrylate na otu epoxy. Acrylate okpukpu abụọ nke njikọ nwere nnukwu reactivity, nwere ike nweta mmeghachi omume onwe-polymerization, na nwekwara ike copolymerized na ọtụtụ ndị ọzọ monomers; Otu epoxy nwere ike meghachi omume na hydroxyl, amino, carboxyl ma ọ bụ acid anhydride, na-ewebata otu ndị na-arụ ọrụ karịa, si otú ahụ na-ewetakwu ọrụ na ngwaahịa ahụ. Ya mere, GMA nwere ọtụtụ ngwa dị iche iche na njikọ organic, njikọ polymer, mgbanwe polymer, ihe ndị mejupụtara, ihe ndị na-agwọ ọrịa ultraviolet, mkpuchi, adhesives, akpụkpọ anụ, mpempe akwụkwọ kemịkalụ, ibipụta na ịcha akwa, na ọtụtụ ubi ndị ọzọ.

Ngwa nke GMA na mkpuchi ntụ ntụ

Ihe mkpuchi ntụ ntụ bụ nnukwu ụdị mkpuchi ntụ ntụ, nke nwere ike kewaa n'ime resins hydroxyl acrylic, carboxyl acrylic resins, glycidyl acrylic resins, na amido acrylic resins dị ka ụdị ọgwụgwọ dị iche iche eji eme ihe. N'ime ha, glycidyl acrylic resin bụ ihe mkpuchi ntụ ntụ kachasị eji. Enwere ike ịmepụta ya ka ọ bụrụ ihe nkiri na ihe ndị na-agwọ ọrịa dị ka polyhydric hydroxy acids, polyamines, polyols, polyhydroxy resins, na hydroxy polyester resins.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene na-ejikarị eme ihe maka polymerization free radical synthesize ụdị GMA resin acrylic, na dodecyl dibasic acid na-eji dị ka onye na-agwọ ọrịa. Ihe mkpuchi ntụ ntụ acrylic kwadebere nwere arụmọrụ dị mma. Usoro njikọ ahụ nwere ike iji benzoyl peroxide (BPO) na azobisisobutyronitrile (AIBN) ma ọ bụ ngwakọta ha dị ka ndị mbido. Ọnụ ego GMA nwere mmetụta dị ukwuu na arụmọrụ nke ihe nkiri mkpuchi. Ọ bụrụ na ego ahụ dị ntakịrị, ogo crosslinking nke resin dị ala, ebe a na-agwọ ọrịa crosslinking dị ole na ole, njupụta nke ihe nkiri mkpuchi ezughị, na mmetụta nkwụsị nke ihe nkiri mkpuchi adịghị mma.

Ngwa nke GMA na mgbanwe polymer

Enwere ike ịdonye GMA na polymer n'ihi ọnụnọ nke acrylate okpukpu abụọ nwere ọrụ dị elu, na otu epoxy dị na GMA nwere ike meghachi omume na ọtụtụ ndị ọzọ na-arụ ọrụ iji mepụta polymer arụ ọrụ. GMA nwere ike anyadokwa na gbanwetụrụ polyolefin site ụzọ ndị dị otú ahụ dị ka ngwọta grafting, agbaze grafting, siri ike na-adọ grafting, radieshon grafting, wdg, na ọ nwekwara ike na-etolite functionalized copolymer na ethylene, acrylate, wdg Ndị a functionalized polymers nwere ike iji dị ka toughening mmadụ. iji mee ka plastik injinia sie ike ma ọ bụ dị ka ndị mmekọ iji kwalite ndakọrịta nke sistemu ngwakọta.

Onye mmalite nke a na-ejikarị eme mgbanwe nke polyolefin site na GMA bụ dicumyl peroxide (DCP). Ụfọdụ ndị mmadụ na-ejikwa benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Ndị mbido dị ka oxy-2,5-dimethyl-3-hexyne (LPO) ma ọ bụ 1,3-di-tert-butyl cumene peroxide. N'ime ha, AM nwere mmetụta dị ukwuu n'ibelata mmebi nke polypropylene mgbe ejiri ya dị ka onye mmalite. Ntugharị nke GMA na polyolefin ga-eduga na mgbanwe nke polyolefin Ọdịdị, nke ga-eme ka mgbanwe nke polyolefin n'elu ihe onwunwe, rheological Njirimara, thermal Njirimara na ígwè ọrụ. GMA graft-modified polyolefin na-abawanye polarity nke yinye molekụla ma n'otu oge ahụ na-abawanye polarity elu. Ya mere, ihu kọntaktị elu na-ebelata ka ọnụ ọgụgụ grafting na-abawanye. N'ihi mgbanwe nke polymer Ọdịdị mgbe GMA mgbanwe, ọ ga-emetụta ya crystalline na n'ibu Njirimara.

Ngwa nke GMA na njikọ nke UV curable resin

Enwere ike iji GMA mee ihe na njikọ nke resin UV nwere ike ịgwọ ọrịa site n'ụzọ dị iche iche nke sịntetik. Otu ụzọ bụ ibu ụzọ nweta prepolymer nwere carboxyl ma ọ bụ otu amino dị n'akụkụ ya site na polymerization radical ma ọ bụ polymerization condensation, wee jiri GMA meghachi omume na otu ndị a na-arụ ọrụ iji webata otu fotosensitivity iji nweta resin fotocurable. Na mbụ copolymerization, dị iche iche comonomers nwere ike iji nweta polymers dị iche iche ikpeazụ Njirimara. Feng Zongcai et al. ejiri 1,2,4-trimellitic anhydride na ethylene glycol mee ihe iji meghachite polymers hyperbranched, wee webata otu fotoensitive site na GMA n'ikpeazụ nweta resin photocurable na mma alkali solubility. Lu Tingfeng na ndị ọzọ na-eji poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid na hydroxyethyl acrylate mbụ synthesize a prepolymer na photosensitive arụ ọrụ abụọ agbụ, na mgbe ahụ iwebata ya site GMA More ìhè-curable okpukpu abụọ agbụ na- neutralized site triethylamine. nweta emulsion polyurethane acrylate emulsion.