Polyurethane synthetic dehwe chinhu chitsva chine-chinangwa chakaumbwa chakakura nekukurumidza mumakore achangopfuura.Inogadzirwa pahwaro hwekuputira polyurethane slurry ine yakavhurika sero chimiro pane yakaderera base yemucheka uye isina-yakarukwa machira.Nekudaro, mazhinji ema polyurethanes anoshandiswa anonyungudutsa akavakirwa, uye kukuvadza kune zvakatipoteredza uye muviri wemunhu kunokonzerwa neDMF zvakasara uye VOC volatilization mukugadzira maitiro kwave hunyanzvi bhodhoro rinorambidza kusimukira kweindasitiri.Parizvino, mvura-based polyurethane ndiyo inotsiva iyo yakanyungudika yakavakirwa polyurethane, asi hurema hwayo hwakaderera hwakasimba, hurombo husina kunaka hwemuviri, kunamatira kuri nyore pamusoro pekupotera, kushomeka kwehydrolysis kuramba, kunonoka kuvhurika mukugadzira coating process, uye kushomeka kwekugadzira. kunyatsoshanda.
Zvichienderana nepfungwa ye "girini uye kuchengetedza kwezvakatipoteredza" uye kuvandudza kukosha kwakawedzerwa kwezvigadzirwa, chirongwa ichi chakagadzira seti yehunyanzvi tekinoroji system yekugadzira yakakwirira yakasimba uye ine aqueous polyurethane uye ecological synthetic dehwe rinogona kutsiva solvent polyurethane.Iyo yakakwira yakasimba yemukati yemvura polyurethane yakagadzirwa uye yakagadziridzwa inogona kuderedza DMF yakasara uye VOC volatilization kubva kunzvimbo yekusimudzira uku ichivandudza kuita kwekupfeka.Panguva imwecheteyo, nokuti iyo firimu ine nhamba huru yemapoka e-hydrophilic uye microporous zvivako, kuvhara kune mhepo yakanaka uye kunyorova kwemhepo, uye chigadzirwa chaicho chekugadzira.Pamusoro pezvo, polyurethane inogadziridzwa nenano zvinhu kuti igadzire yakakwira-inoshanda uye yakawanda-inoshanda polyurethane synthetic zvigadzirwa zvematehwe zvinokodzera kudiwa kwemusika, kuitira kuvandudza kukosha kwakawedzerwa kwezvigadzirwa uye kusimbisa kukwikwidza kwemusika.
Zvikuru zvekutsvaga zvirimo:
(1) Kugadzirira tekinoroji yemhando yakasimba yakasimba yemvura ine polyurethane.Zvinoenderana neiyo masvomhu modhi yehuwandu hwehuwandu hwezvinhu zvakatenderedzwa, yakakwira yakasimba yemukati aqueous polyurethane ine akawanda-dimensional particle saizi yekugovera inogadzirwa.Iyo yakawanda-dimensional particle saizi yekugovera inogona kuvandudza yakasimba yemukati ye lotion pasina kuwedzera viscosity yakakwira zvakanyanya.Dambudziko repamusoro viscosity uye kusimba kwakaderera mukugadzirwa kwepamusoro pemvura polyurethane inogadziriswa.Iyo yakasimba yemukati ndeye> 50%, iyo yekuona kona yefirimu i101.1 °, uye kudzivirira kwemvura uye kushomeka kwehydrolysis kunovandudzwa.
(2) Kugadzira tekinoroji yemvura ine polyurethane foamed bass.Zvichienderana neyakaomeswa yemukati aqueous polyurethane, musanganiswa wezvemuviri uye makemikari kupupa nzira inosarudzwa kugadzira mvura-based polyurethane bass ine inogadziriswa sero.Chigadzirwa chacho chakapfava, chakakora uye chakapfava, chine hunyoro hwakanaka hwekunyura uye kupera, kuwana zero VOC uye DMF emissions mukugadzirwa kwekugadzira, kuderedza kuoma kwekurapwa kwekupedzisira uye kuchengetedza mutengo wekupora kupora uye kurapwa mune inotevera nhanho.
(3) Kugadzirira tekinoroji yeinoshanda waterborne polyurethane.Multifunctional waterborne polyurethane ine super hydrophobicity, kupfeka kuramba uye anti-static zvivakwa zvakagadzirirwa nekushandisa yekudzvanya reaction mechanism ye "mercapto monoene", nanotechnology uye mwenje kurapa tekinoroji.Inogona kushandiswa mukugadzirwa kwematehwe, machira ekupfeka, mafuta-mvura kupatsanurwa, electromagnetic kudzivirira uye mamwe minda.
Nguva yekutumira: Sep-13-2022