Kugirango byoroshye gukoreshwa, polymeric monomers mubisanzwe ishyirwa mubyiciro bitatu byingenzi: monomers ikomeye, monomers yoroshye na monomers ikora.Methyl methacrylate (MMA), styrene (ST), nijisho rya acrylic (AN) nizo zikoreshwa cyane muri monomers zikomeye, mugihe Ethyl acrylate (EA), butyl acrylate (BA), na isooctyl acrylate (2-EHA) niyo ikunze kugaragara. yakoresheje monomers yoroshye.
Acide ya acrylic-ndende na methacrylic esters (nka lauryl na octadecyl esters) bifite imbaraga zo kurwanya inzoga no kurwanya amazi.
Monomers ikora ni acrylates na methacrylates irimo hydroxyl, na monomers irimo amatsinda ya carboxyl ni acide acrylic na acide methacrylic.Itangizwa ryamatsinda ya hydroxyl irashobora gutanga amatsinda yimikorere yibisubizo bishingiye kumashanyarazi hamwe na polyurethane ikiza hamwe na amino resin yo guhuza.Abandi ba monomer bakora ni: acrylamide (AAM), hydroxymethylacrylamide (NMA), diacetone acrylamide (DAAM) na methacrylate ya Ethyl acetoacetate (AAEM), glycidyl methacrylate (GMA), dimethylaminoethyl methacrylate (DMAEMA), viny. hoxysilane Vinyl tri . . kugirango tunoze amazi arwanya emulisiyo, ikirere nibindi bintu, ariko igiciro cyacyo kiri hejuru. Emulsion polymerisation monomer, diacetone acrylamide (DAAM), Ethyl acetoacetate methacrylate (AAEM) igomba gukoreshwa hamwe na polymerisation yongeyeho hexanediyl dihydrazide, hexanediamine compound , umwuka wamazi urashobora kuba mumiraro ya macromolecular hagati yo gushiraho firime ihuza.
Carboxyl monomer irimo acide acrylic na acide methacrylic, kwinjiza amatsinda ya carboxyl birashobora kunoza resin kumabara, kuzuza wettability no gufatira kuri substrate, kandi hamwe na epoxy group ifite reaction, gukiza aminine amine bifite ibikorwa bya catalitiki.Carboxyl yibiri muri resin isanzwe ikoreshwa agaciro ka acide (AV), ni ukuvuga umubare wa miligarama ya KOH isabwa kugirango uhindure resin 1g, unit mgKOH / g (resin ikomeye), igenzura rusange rya AV hafi 10mgKOH / g (ikomeye resin), sisitemu ya polyurethane, AV hepfo gato, amino resin hamwe na AV irashobora kuba nini, kugirango iteze imbere guhuza.
Iyo ushushanya hydroxy acrylic resin, ubwoko nubunini bwa hydroxyl monomer bigira uruhare runini mumikorere ya resin.Hydroxy acrylic acide yibice bibiri bigize sisitemu ya polyurethane ikoreshwa cyane nka hydroxyl monomer yibanze: hydroxyethyl acrylate (HEA) cyangwa hydroxyethyl methacrylate (HEMA);hydroxy acrylic acide ya amine yo guteka amine ikunze gukoreshwa nka hydroxyl monomer ya kabiri: acide acrylic-β-hydroxypropyl ester (HPA) cyangwa aside methacrylic-β-hydroxypropyl ester (HPMA).Igikorwa cya monomer kiri hejuru, kandi hydroxypropyl resin ikomatanyirijwe hamwe ikoreshwa nka hydroxyl igizwe na lacquer ya amino yo guteka, igira ingaruka kububiko bwa lacquer, irashobora
hitamo hydroxypropyl ya kabiri.Mu myaka yashize, hari hydroxyl monomers nshya, nka acide acrylic cyangwa hydroxybutyl methacrylate, hydroxyethyl methacrylate na ε-caprolactone yiyongera (1: 1 cyangwa 1: 2 mol ratio, Dow Chem Company).Ibisigarira byashizwemo no kongeramo hydroxyethyl methacrylate na ε-caprolactone bifite ubukonje buke, kandi impirimbanyi nziza yo gukomera no guhinduka irashobora kugerwaho.Byongeye kandi, kwinjiza amatsinda ya hydroxyl kumpera yumunyururu wa macromolecular na hydroxyl yo mu bwoko bwa hydroxyl yohereza ibintu (nka mercaptoethanol, mercaptopropanol, na 2-hydroxyethyl mercaptopropionate) bitezimbere ikwirakwizwa ryamatsinda ya hydroxyl, byongera ubukana, kandi bigabanya molekile. gukwirakwiza ibiro, kugabanya ububobere bwa sisitemu.
Kunoza Ethanol irwanya kwinjiza styrene, acrylate na methacrylic aside yateye imbere ya alkyl esters kugirango igabanye ibyiciro bya ester.Byombi birashobora gufatwa nkuburinganire bwikirere hamwe na Ethanol irwanya.Methacrylic acide yateye imbere ya alkyl esters ni lauryl methacrylate, octadecyl methacrylate, nibindi, aba monomers bashingira cyane kubitumizwa hanze.
C ibisigazwa byo gutwikira akenshi ni koperimeri, kandi ibikorwa byabo bya cololymerisation bigomba kwitabwaho muguhitamo monomers.Bitewe nuburyo butandukanye bwa monomer, ibikorwa bya copolymerisation biratandukanye, ibihimbano bya copolymer hamwe na monomer ivanze nibisanzwe biratandukanye, kubibiri, terpolymerisation, birashobora kuba bifitanye isano binyuze muburinganire bwa kopi.Kubantu benshi ba cololymers, ntaho bihurira neza bihari, gusa binyuze mubushakashatsi bwubushakashatsi, isesengura ryihariye ryibibazo byihariye.Mubikorwa, uburyo bwo kugaburira monomer "inzara" uburyo bwo kugaburira (ni ukuvuga igipimo cyo kugaburira monomer
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Niba nta gaciro k'igipimo cya polymerisiyasi, Q na e agaciro ka monomer birashobora gukoreshwa mukubara igipimo cya polymerisation, cyangwa gukoresha Q na e mu buryo butaziguye gusuzuma ibikorwa bya copolymerisation, rusange muri rusange monopol Q agaciro ntishobora gutandukana cyane, bitabaye ibyo biragoye kwigana;iyo e agaciro gatandukanye, biroroshye guhinduranya cololymerisation, bimwe bigoye kwigana monomer wongeyeho Q hagati yigihe cyagaciro cya monomer, birashobora kunoza imikorere ya copolymerisation.
Guhitamo Monomer bigomba kandi kwitondera ubunini bwuburozi bwa monomer, uburozi rusange bwa acrylate buruta uburozi bwa methacrylate ihuye, nkuburozi bwa methyl acrylate buruta uburozi bwa methyl methacrylate, hiyongereyeho uburozi bwa Ethyl acrylate ni nini.
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Igihe cyo kohereza: Kanama-22-2021