Waterborne Polyurethane Matting Resin

Tsanangudzo Pfupi:

Aqueous polyurethane mhinduro ine aqueous, dispersion kana aqueous lotion inogadzirwa ne polyurethane resin mumvura.Inoshandiswa zvakanyanya mukuvaka, imba, mota, zvipfeko zvematehwe, midziyo yemumba uye mamwe machira ekushongedza.Mvura ye polyurethane inogona kushandiswa kugadzira matting coating.Parizvino, iyo matting mhedzisiro yecoating resin inonyanya kuwanikwa nekuwedzera matting agent uye self matting gadziriso yeresin.

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Tsanangudzo

Kuwedzera chigadziro chekugadzirisa kunogona kuderedza kupenya kwechifukidzo, asi chigadziro chekugadzirisa chinowanzoita sedimentation, iyo inoderedza kugadzikana kwemafuta, uye kana kusanganiswa kusina kuenzana, kune matambudziko akadai sekusiyana kwekubwinya kwechifukidzo.Naizvozvo, kuti vagadzirise mhedzisiro yakashata yakakonzerwa nekuwedzerwa kwemaajenti, vanhu vakatanga kutarisisa kutsvagurudzo yemvura polyurethane self matting resin uye microsphere waterborne polyurethane matting resin pasina kuwedzera matting agents.

1. Self Extinction Waterborne Polyurethane Resin

Self matting resin (Self matting resin) zvinoreva resin yekunamira iyo ine pamusoro pekuita matting effect mushure mekugadzirwa kwefirimu pasina kuwedzera humwe hupfu hwehupfu kana wakisi kune resin yekukoira.Iyo self matting resin ine kuenderana kwakanaka nemamwe maresheni uye yakafanana refractive index mushure mekugadzirwa kwefirimu nekuti zvikamu zvaro zvine zvakafanana zvemuviri uye makemikari zvimiro uye optical simba boka chimiro chine matting agent particles, izvo zvinogadzirisa zvinogadzirisa matambudziko anokonzerwa nekuwedzera matting agent.Panguva imwecheteyo, nekuda kwekuti iyo refractive index yeakawedzera matting agent uye iyo yekuputira molecule haina kushandiswa, zvimiro zveese matting uye pachena hazvigone kutariswa, uye zvinodiwa zvekushandisa zvemamwe machira hazvigone kuwanikwa.Naizvozvo, iyo self matting coating resin isingashandise yekunze matting agent yakwezva kutarisisa.
Iyo yemvura polyurethane self extinction resin isina chero matting agent yakagadzirwa nehydrazine hydrate post chain yekuwedzera nzira.Mukuita uye, zvimedu zvakafanana ne matting agent zvinogadzirwa, uye zvimedu zvinoyangarara zvakaenzana pamusoro peiyo inonamira firimu, ichiita iyo yepamusoro micro rough.Iyi nzira haingogadzirise kukanganisa kunokonzerwa nekushandiswa kweiyo matting agent, asi zvakare ine yakanakisa lotion kugadzikana, uye inogona zvakare kuvandudza kukwiza kupikisa, kupeta kukurumidza uye kupuruzira kukurumidza kweiyo firimu yekupfeka.Inogona kuiswa zvakanyanya kune yakakwira yekuputira yematehwe, polyvinyl chloride (PVC) yematehwe, polyurethane artificial dehwe, nezvimwe.
Iyo Chinese patent cn106432667b inoburitsa nzira yekugadzirira yekuzvimisa yakapfava uye inonzwikwa nemvura yepolyurethane yedehwe yekupedzisa agent.Iyo yakagadziridzwa patent inoshandisa hmdi, HDI Trimer, propylene carbonate glycol uye dimethylbutyric acid (DMBA) sechinhu chikuru mbishi uye hydrazine hydrate secheni extender mushure me emulsification kugadzirira matting waterborne polyurethane.Iyo HDI Trimer mune mbishi zvinhu ine mhete chimiro chemapoka matatu anoshanda.Chimiro chemhete chakagadzikana panguva yekugadzira, iyo inogona kugadzira muchinjiko-yakabatana network chimiro kune zvimwe zvigadzirwa zve polyurethane.Iko kuenderana kweiyo yakagadzirwa micro gel nemamwe ma polyurethane resins inodzikira panguva yekugadzira firimu.Mukuwedzera, pane imwe chiyero chekristallinity mu polyurethane, izvo zvinotungamirira kuderera kwekujeka kwekuumbwa kwefirimu, kuwana kupera kwemaitiro emasikisi, uye nekuvandudza zvakanyanya kusimba, kusagadzikana kwemvura, kunyunguduka uye kusagadzikana kwekupfeka. iyo polyurethane firimu.

2. Kugadziriswa Kwemvura Yakazara Polyurethane Matting Resin

Sezvo kuwedzera kweiyo matting agent inogona kukanganisa hunhu hweiyo firimu yekupfekedza, uye mapoka e hydrophilic ari mu self matting waterborne polyurethane resin anokonzeresa kusamira zvakanaka kwemvura kweiyo firimu yekuputira mushure mekuumbwa kweiyo lotion firimu, kunyanya kana ichishandiswa. nokuda kwekuputira kwepamusoro kweganda kana pepa, makambani mazhinji anogadzirira matting resin kuburikidza nekugadzirisa, zvakadai sesilicone kugadziriswa uye cross-linking modification.
Mukuita kwekugadzira firimu re organosilicon yakagadziridzwa waterborne polyurethane matting resin, iyo hydrophobic organosilicon segment inotamira pamusoro peiyo lotion coating firimu kuti iite micro rough pamusoro, izvo zvinoita kuti polyurethane ive zvese organic uye inorganic zvivakwa, uye kudzivirira kwemvura, kupisa. kugadzikana uye mechanical properties zvinobudirira kuvandudzwa.Silicone modified waterborne polyurethane matting resin yakagadzirwa nekushandisa PDMS yakagadziridzwa PTMG, diisocyanate (IPDI) uye dimethylol propionic acid (DMPA) semidziyo.
Iyo crosslinking modification inoshandura chimiro chelinear polyurethane, inova mhedzisiro yekuyambuka kwayo kuita dense network polyurethane macromolecules.Iyo particle size ye polyurethane lotion inowedzera, uye mvura inoputika panguva yekuomeswa kwe lotion.Mienzaniso ine dhayamita yakakura inogadzira nzvimbo yakaoma uye yakaderera gloss mushure mekututirana.Panguva imwecheteyo, kupikisa kupisa, kudzivirira kwemvura uye kushorwa kwemakemikari kweiyo yakagadzirirwa mvura polyurethane yakagadziridzwa zvakare nekuda kweiyo dense cross-linking network chimiro.Iyo self extinction lotion ye waterborne polyurethane yakagadziridzwa nemukati crosslinking yakagadzirwa nepost chain yekuwedzera nzira.Firimu racho rakanga rakaomarara.

Mashoko Okupedzisira

Sechinhu chakakosha chekushandiswa kwemvura ine polyurethane resin, matting coating resin yakabhadharwa neindasitiri yekupfekedza.Zvisinei, zvimwe zvigadzirwa hazvina kugadzikana zvakanaka.Sezvo pasina chikonzero chekuwedzera matting agent mujasi, iyo self matting coating resin ine kugadzikana kwakasimba uye yakanakisa coating kuita, inova iyo yekusimudzira maitiro mune ramangwana.