TGIC inotsiva chemistries mune poda coating-Hydroxyalkylamide (HAA)
Hydroxyalkylamide(HAA) TGIC Replacement chemistries
Sezvo ramangwana reTGIC risingazivikanwe, vagadziri vari kutsvaga imwe yakaenzana yekuitsiva. HAA mishonga yakadai sePrimid XL-552, yakagadzirwa uye yakatengeswa neRohm neHaas, yakaunzwa. Mhedzisiro huru kune zvinoomesa zvinhu zvakadaro ndezvekuti, sezvo nzira yavo yekurapa iri maitiro ekugadzirisa, mabhaisikopo anovaka kusvika kuhukobvu hunodarika 2 kusvika 2.5 mils (50 kusvika 63 microns) anogona kuratidza kubuda, pinholing, uye kuyerera kusina kunaka uye kuenzana. Izvi ndezvechokwadi kunyanya kana aya ekurapa achishandiswa neakajairika carboxy polyesters akagadzirirwa TGIC musanganiswa.
Zvizvarwa zvitsva zvecarboxy polyesters, yakagadzirwa kana kugadzirwa neEMS, Hoechst Celanese, uye Ruco, kuti ishandiswe nePrimid XL-552, inoderedza mazhinji ematambudziko aya, zvisinei.Data yakatangwa nguva pfupi yapfuura naHoechst Celanese, semuenzaniso, inoratidza kuti Primid's weatherability. inovandudzwa nekushandisa zvishoma kudarika stoichiometric zviyero zvehardener. Mhedzisiro imwe cheteyo inogona kuwanikwa nekuwedzera shoma yakavharika isophorone diisocyanate (IPDI) kune yakazara stoichiometric Primid system, iyo inobudirira neut.ralinopa mamwe eHAA. Uyezve, data yakaunganidzwa mushure mekufumura chizvarwa chitsva checarboxy polyester/HAA uye yechinyakare uye yepamusoro carboxyl polyester TGIC system kuFlorida kupenya kwezuva kwemakore maviri inoratidza kuti machemistries aya mamiriro ekunze akafanana. Uye kuyedza kweFlorida kwatakaita kunoratidza kuti akasiyana emavara ePrimid masisitimu anoratidza kushomeka-kwe-gloss kuchinjika iyo yakajairwa TGIC masisitimu ane yakafanana pigmentation uye yekuzadza zvirimo.
Zvimwe zvekuwedzera-mhando yekuwedzera zvinogona kubvumira mafirimu kuvaka kusvika 3 mils (75 microns) pasina kuratidza kubuda kana mamwe matambudziko makuru epasi. Diphenoxy compounds ari kusanganiswa nebenzoin mucarboxy polyester HAA chemistries kuitira kuti firimu ritaridzike zviri nani uye kuderera kweyero.
Imwe chizvarwa chitsva checarboxy polyester / HAA masisitimu anokwanisa kurapwa zvizere kana zvakakwana patembiricha yakaderera se138C kwemaminetsi makumi maviri, chero bedzi mareshiyo akazara estoichiometric resin kune hardener achishandiswa. Mapoda akagadzirwa kubva kune aya masisitimu ane mikana yekuputira kune nonmetallic substrates.
Hydroxyalkylamide (HAA)