Glycidyl Methacrylate (GMA) ndeye monomer ine ese ari maviri acrylate ma bond uye epoxy mapoka. Acrylate yakapetwa kaviri bond ine yakakwira reactivity, inogona kuitiswa yega-polymerization reaction, uye inogona zvakare kubatanidzwa nemamwe akawanda monomers; boka re epoxy rinogona kuita nehydroxyl, amino, carboxyl kana acid anhydride, kuunza mamwe mapoka anoshanda, nekudaro zvichiunza kushanda kwakawanda kuchigadzirwa. Naizvozvo, GMA ine yakanyanyisa kuwanda kwekushandisa mune organic synthesis, polymer synthesis, polymer gadziriso, inoumbwa zvinhu, ultraviolet kurapa zvinhu, machira, anonamira, dehwe, kemikari fiber papermaking, kudhinda nekudhaya, uye zvimwe zvakawanda minda.

Kushandiswa kweGMA mune poda coating

Acrylic poda coatings iboka rakakura rehupfu hwekufukidzira, hunogona kukamurwa kuita hydroxyl acrylic resins, carboxyl acrylic resins, glycidyl acrylic resins, uye amido acrylic resins zvinoenderana neakasiyana ekurapa anoshandiswa. Pakati pavo, glycidyl acrylic resin ndiyo inonyanya kushandiswa poda coating resin. Inogona kuumbwa kuita mafirimu ane mishonga yekurapa senge polyhydric hydroxy acids, polyamines, polyols, polyhydroxy resins, uye hydroxy polyester resins.

Methyl methacrylate, glycidyl methacrylate, butyl acrylate, styrene inowanzo shandiswa mahara radical polymerization kugadzira GMA mhando acrylic resin, uye dodecyl dibasic acid inoshandiswa seanorapa. Iyo acrylic poda coating yakagadzirirwa ine Kuita Kwakanaka. Iyo synthesis process inogona kushandisa benzoyl peroxide (BPO) uye azobisisobutyronitrile (AIBN) kana misanganiswa yavo sekutanga. Huwandu hweGMA hune simba guru pakuita kwefirimu rekuvhara. Kana huwandu hwacho huri hudiki kwazvo, dhigirii rekubatanidza resin rakaderera, kurapa kuchinjika mapoinzi mashoma, iyo crosslinking density yefirimu yekuputira haina kukwana, uye kupikisa kweiyo firimu yekuputira hakuna kunaka.

Kushandiswa kweGMA mukugadziriswa kwepolymer

GMA inogona kubatanidzwa papolymer nekuda kwekuvapo kwe acrylate kaviri chisungo chine chiitiko chepamusoro, uye boka re epoxy riri muGMA rinogona kuita neakasiyana emamwe mapoka anoshanda kugadzira polima inoshanda. GMA inogona kunamatwa kune yakagadziridzwa polyolefin nenzira dzakaita sekugadzirisa kugadzirisa, kunyunguduka kubatanidza, kusimba kwechikamu, kubatanidza mwaranzi, zvichingodaro, uye inogona zvakare kugadzira inoshanda inoshanda makopolymers ane ethylene, acrylate, nezvimwe. Aya mapolymer anoshanda anogona kushandiswa seanoomesa zvinhu. kuomesa mapurasitiki einjiniya kana seanopindirana kuvandudza kuenderana kwemasisitimu akasanganiswa.

Iyo initiator inowanzoshandiswa pakugadzirisa graft ye polyolefin neGMA inonzi dicumyl peroxide (DCP). Vamwe vanhu vanoshandisawo benzoyl peroxide (BPO), acrylamide (AM), 2,5-di-tert-butyl peroxide. Vatangi vakaita se oxy-2,5-dimethyl-3-hexyne (LPO) kana 1,3-di-tert-butyl cumene peroxide. Pakati pavo, AM ine mhedzisiro yakakosha mukudzikisa kuderedzwa kwepolypropylene kana ichishandiswa senge yekutanga. Kubatanidzwa kweGMA pa polyolefin kunotungamira kune shanduko ye polyolefin chimiro, izvo zvinokonzeresa shanduko ye polyolefin's surface properties, rheological properties, thermal properties uye mechanical properties. GMA graft-modified polyolefin inowedzera polarity ye molecular chain uye panguva imwechete inowedzera polarity yepamusoro. Naizvozvo, iyo yepamusoro yekubata kona inodzikira sezvo chiyero chegraft chinowedzera. Nekuda kweshanduko muchimiro chepolymer mushure mekugadziriswa kweGMA, ichakanganisawo makristaro ayo uye ma mechanika zvinhu.

Kushandiswa kweGMA mune synthesis yeUV inorapika resin

GMA inogona kushandiswa mukugadzirwa kweUV inorapika resin kuburikidza nemhando dzakasiyana dzekugadzira nzira. Imwe nzira ndeyekutanga kuwana prepolymer ine carboxyl kana amino mapoka padivi cheni kuburikidza neradical polymerization kana condensation polymerization, uye wozoshandisa GMA kuita nemapoka anoshanda aya kusuma mapoka emifananidzo kuti awane resin inorapika. Mune yekutanga copolymerization, akasiyana comonomers anogona kushandiswa kuwana mapolymer ane akasiyana ekupedzisira zvivakwa. Feng Zongcai et al. yakashandisa 1,2,4-trimellitic anhydride uye ethylene glycol kuti iite kuti igadzirise hyperbranched polymers, uye ipapo yakaunza photosensitive mapoka kuburikidza neGMA kuti pakupedzisira vawane photocurable resin ine nani alkali solubility. Lu Tingfeng nevamwe vakashandisa poly-1,4-butanediol adipate, toluene diisocyanate, dimethylolpropionic acid uye hydroxyethyl acrylate kuti vatange kugadzira prepolymer ine photosensitive inoshanda kaviri ma bond, vozozvisuma kuburikidza neGMA More light-curable double bonds inoremerwa ne triethylamine to. kuwana mvura polyurethane acrylate emulsion.