Indasitiri yepolyurethane yagara ichivimba nezvinhu zvinogadzira tin-based catalysts nekuda kwebasa rayo rinoshanda mukukurumidzisa reactions uye maitiro ekugadzirisa. Zvisinei, kunetseka nezvezvakatipoteredza nehutano kwakaita kuti patsvagwe dzimwe nzira dzinoshanda. Imwe nzira inotsiva ine tariro ndeyeMXC-B20, bismuth carboxylate catalyst ine mabhenefiti akawanda pane catalysts dzechinyakare dzinobva mutin.
Sei Uchifanira Kufunga Nezvezvimwe Zvimwe Zvingashandiswa Panzvimbo peTin Catalysts?
Zvinhu zvinogadzira simbi zvine tin, zvakaita se dibutyltin dilaurate (DBTDL) uye stannous octoate, zvave zvichishandiswa zvakanyanya mukugadzira polyurethane. Pasinei nekushanda kwazvo, zvinhu izvi zvinokonzera njodzi huru dzezvakatipoteredza nehutano. Zvinogona kuva nechepfu uye zvinowanzobatanidzwa nemirau yemutemo, zvichiita kuti zvive zvakakosha kuti vagadziri vatsvage nzira dzakachengeteka.
MXC-B20: Bismuth CarboxylateChinogadzirisa
MXC-B20 imhando itsva yebismuth carboxylate catalyst yakagadzirirwa kugadzirisa matambudziko ema catalysts akavakirwa patin. Iyi catalyst inoshanda se cocatalyst ine tertiary amines, ichivandudza polyurethane reactions uye maitiro ekuporesa.'tarisa zvakadzama zvinoita kuti MXC-B20 ive imwe nzira iri nani:
1. Hushamwari Pakati Pedu:
MXC-B20 haina zvinhu zvine njodzi zvakaita se2-ethylhexanoic acid (2-EHA), dibutyltin (DBT), uye tributyltin (TBT). Izvi zvinoita kuti ive sarudzo isingakuvadzi nharaunda zvichienzaniswa nemidziyo yechinyakare yetin-based catalysts, zvichienderana nekuwedzera kwezvinodiwa zvemutemo uye zvemusika zvemakemikari akachengeteka.
2. Kubudirira Kwakawedzerwa:
Kana paine dosages shoma, MXC-B20 inowedzera viscosity yemusanganiswa we polyurethane, zvichiita kuti irambe ichinonoka. Hunhu uhwu hunobatsira zvikuru sezvo huchibvumira kudzora kuri nani panguva yekutanga kwekugadzirisa ukuwo huchiita kuti kucheneswa kwemusanganiswa we polyurethane kuve kwakanaka.
3. Kuchinja-chinja:
Catalyst iyi inoenderana nemapolyols efoam akaomarara uye akapfava, zvichiita kuti ikwanise kushandiswa zvakasiyana-siyana zvepolyurethane. Ingava foam inochinjika, foam inochinjika ine density, spray foam, microcellular foam, kana masystem efoam akaomarara, MXC-B20 inoratidza kuti catalyst inoshanda zvakasiyana-siyana uye inoshanda.
4. Imwe nzira isina tin:
Nekutsiva ma catalysts anobva mu tin ne MXC-B20, vagadziri vanogona kuderedza zvakanyanya kukanganiswa kwezvigadzirwa zvavo nezvakatipoteredza. Iyi nzira isina tin inoderedzawo njodzi yekukuvadzwa, ichisimudzira nzvimbo yakachengeteka yebasa uye chigadzirwa chekupedzisira.
5. Mhedzisiro Inofananidzwa kana Yepamusoro:
Kunyangwe pasina tin, MXC-B20 haikanganisi mashandiro ayo. Kugona kwayo kushanda se cocatalyst ine tertiary amines kunoita kuti nzira yekurapa ishande zvakanaka uye inoshanda, kazhinji ichipa mhedzisiro yakafanana, kana kutopfuura, iyo inowanikwa ne tin-based catalysts.
Mhedziso
Kuchinja kuenda kuma catalysts akachengeteka uye asingakuvadzi nharaunda inzira yakakosha muindasitiri ye polyurethane. MXC-B20, ine hunhu hwayo hwakasiyana uye mabhenefiti ayo, inobuda senzira inokwezva kune catalysts dzechinyakare dzakavakirwa patin. Kuenderana kwayo ne polyols dzakasiyana-siyana, pamwe nekushanda kwayo kwakawedzerwa uye humbowo hwezvakatipoteredza, kunoita kuti ive sarudzo yepamusoro kune vagadziri vari kutsvaga kugadzira nekuvandudza zvigadzirwa zvavo zve polyurethane. Kugamuchira MXC-B20 hakungoenderane nezvinodiwa zvemutemo chete asiwo kunokurudzira kuchengetedzeka mukugadzirwa kwe polyurethane.
Nguva yekutumira: Nyamavhuvhu-06-2024