Iterambere rishya rya Waterborne UV resin

1. Sisitemu ikabije

Nubwoko bushya bwa polymer, hyperbranched polymer ifite imiterere ya serefegitura, umubare munini wamatsinda arangiza kandi nta guhinduranya hagati yiminyururu.Hyperbranched polymers ifite ibyiza byo gusesa byoroshye, gushonga hasi, ubukonje buke hamwe nubushake buke.Kubwibyo, amatsinda ya acryloyl hamwe nitsinda rya hydrophilique birashobora gutangizwa muguhuza urumuri rwamazi rukiza oligomers, rufungura inzira nshya yo gutegura resin ya Waterborne UV.

UV ikiza amazi yo mu bwoko bwa hyperbranched polyester (whpua) yateguwe nigisubizo cya Hyperbranched Polyester ikungahaye mumatsinda ya hydroxyl hamwe na succinic anhydride na ipdi-hea prepolymer, amaherezo ikabangikanya na amine kama kugirango ibe umunyu.Ibisubizo byerekana ko igipimo cyo gukiza cyumucyo cyihuta kandi ibintu bifatika nibyiza.Hamwe no kwiyongera kwibice bikomye, ubushyuhe bwikirahure bwikirahure bwa resin bwiyongera, ubukana nimbaraga zingana nabyo biriyongera, ariko kurambura kuruhuka bigabanuka.Hyperbranched polyester yateguwe kuva polyanhydride na epoxide ikora.Glycidyl methacrylate yatangijwe kugirango irusheho kwitwara hamwe na hydroxyl hamwe na carboxyl ya groupe ya hyperbranched polymers.Hanyuma, triethylamine yongewemo kugirango itabogamye kandi ikore umunyu kugirango ubone UV ikiza amazi yo mu mazi ya hyperbranched polyester.Ibisubizo byerekanaga ko uko ibintu byinshi mumatsinda ya carboxyl arangije amazi ashingiye kumazi ya hyperbranched resin, niko amazi meza ashobora gukomera;Igipimo cyo gukiza cya resin cyiyongera hamwe no kwiyongera kwa terefone ebyiri.

Sisitemu 2 ya organic-inorganic sisitemu

Amazi ya UV yumucyo yakize sisitemu ya organic / inorganic Hybrid sisitemu igizwe nibintu byiza bya Waterborne UV resin hamwe nibikoresho bidakoreshwa.Ibyiza byibikoresho bidakoreshwa nkibishobora kwangirika cyane hamwe n’imihindagurikire y’ikirere byinjizwa mu gisigara kugira ngo bitezimbere ibintu byose bya firime yakize.Mugutangiza ibice bidafite umubiri nka nano-SiO2 cyangwa montmorillonite muri sisitemu yo gukiza UV binyuze muburyo bwo gutatanya mu buryo butaziguye, uburyo bwa sol-gel cyangwa uburyo bwo guhuza, UV ikiza sisitemu ya Hybrid organic / inorganic Hybrid irashobora gutegurwa.Byongeye kandi, monomer organisilicon irashobora kwinjizwa mumurongo wa molekile ya UV oligomer.

Amavuta yo kwisiga ya Organo / inorganic Hybrid (Si PUA) yateguwe mugutangiza amatsinda ya polysiloxane mugice cyoroshye cya polyurethane hamwe na hydroxybutyl polydimethylsiloxane (PDMS) hamwe no kuvanga na monomers acrylic.Nyuma yo gukira, firime yerekana irangi ifite imiterere myiza yumubiri, impande zose zihuza hamwe no kurwanya amazi.Hyperbranched hybrid polyurethane hamwe na polyurethane yumucyo wakize byateguwe bivuye muri polyhydroxy hyperbranched polyurethane, succinic anhydride, silane ihuza KH560, glycidyl methacrylate (GMA) na hydroxyethyl methacrylate.Hanyuma, Si02 / Ti02 organic-inorganic hybrid sol yumucyo wakize hyperbranched polyurethane yateguwe muguhuza hamwe na hydrolyzing hamwe na tetraethyl orthosilicate na n-butyl titanate muburyo butandukanye.Ibisubizo byerekana ko hamwe no kwiyongera kwibintu bidahuje umubiri, ubukana bwa pendulum yimvange ya Hybrid bwiyongera kandi ububobere bwo hejuru bukiyongera.Ubuso bwubuso bwa SiO2 buvanze nibyiza kuruta ubw'imvange ya Ti02.

Sisitemu ebyiri yo gukiza

Mu rwego rwo gukemura ibitagenda neza mu gukiza ibice bitatu byo gukiza amazi ya UV yo mu mazi no gukiza ibara ryinshi hamwe na sisitemu y'amabara, no kunoza imiterere yuzuye ya firime, abashakashatsi bakoze uburyo bubiri bwo gukiza buhuza gukiza urumuri hamwe nubundi buryo bwo gukiza.Kugeza ubu, gukiza urumuri, gukiza ubushyuhe, gukiza urumuri / gukiza redox, gukiza urumuri rukabije / gukiza urumuri hamwe no gukiza urumuri / gukiza bitose ni uburyo bubiri bwo gukiza, kandi hari uburyo bwakoreshejwe.Kurugero, UV ya elegitoroniki ikingira ni uburyo bubiri bwo gukiza bwumucyo / redox cyangwa gukiza urumuri / gukira neza.

Imikorere ya monomer Ethyl acetoacetate methacrylate (amme) yinjijwe mumavuta yo kwisiga ya acide polyacrylic, hanyuma itsinda ryo gukiza urumuri ryatangijwe binyuze muri Michael yongeyeho ubushyuhe buke kugirango bahuze ubushyuhe / uv gukiza polyacrylate yo mumazi.Kama ku bushyuhe buhoraho bwa 60 ° C, 2 x 5 Ukurikije imirasire yumuriro wa 6 kilowatike ya mercure, ubukana bwa resin nyuma yo gukora firime ni 3h, kurwanya inzoga inshuro 158, naho kurwanya alkali ni 24 amasaha.

4 epoxy acrylate / polyurethane acrylate sisitemu

Epoxy acrylate coating ifite ibyiza byo gukomera cyane, gufatana neza, kurabagirana kwinshi no kurwanya imiti myiza, ariko ifite imiterere ihindagurika kandi yoroheje.Acrylate ya polyurethane yo mu mazi ifite ibiranga kwambara neza no guhinduka, ariko guhangana nikirere.Ukoresheje guhindura imiti, kuvanga kumubiri cyangwa kuvanga uburyo bwo guhuza neza ibisigarira byombi birashobora kunoza imikorere ya resin imwe kandi bigatanga umukino wuzuye kubyiza byabo, kugirango utezimbere sisitemu yo hejuru ya UV ikiza hamwe nibyiza byombi.

5 macromolecular cyangwa polymerizable fotoinitiator

Amafoto menshi ni aryl alkyl ketone molekile nto, idashobora kubora rwose nyuma yo gukira urumuri.Ibisigisigi bito bisigaye cyangwa ibicuruzwa bya fotolisi bizimukira hejuru yububiko, bitera umuhondo cyangwa umunuko, bizagira ingaruka kumikorere no gukoresha firime yakize.Mu kwinjiza amafoto, amatsinda ya acryloyl hamwe nitsinda rya hydrophilique muri polymers hyperbranched polymers, abashakashatsi bahujije macromolecular polymerizable yifoto yo mumazi kugirango batsinde ibibi byamafoto mato mato.