Foam yepolyurethane, chinhu chinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana, inogadzirwa kuburikidza nemaitiro akaomarara emakemikari anosanganisira kuita pakati pemapolyol nemapolyisocyanates. Chimwe chezvidanho zvakakosha mukuita uku ndechekugadziramaitiro e gelation, izvo zvinotungamira pakuumbwa kwechimiro che polyurethane network, zvichipa furo hunhu hwaro hwaunoda.
Chii chinonzi Gelation muPolyurethane Foam?
Kugadzika zvinoreva danho rekutanga rekuita kwepolyol (kazhinji polyether kana polyester polyol) ine isocyanate (yakadai seMDI kana TDI) kuti igadzire network yepolymer yakabatana. Network iyi, inozivikanwawo se polyurethane, inopa furo chimiro chakasimba kana chinochinjika, zvichienderana nekugadzirwa kwayo.
Munguva yekugadzirwa kwe gelation, kuita pakati pe polyol ne isocyanate zvinoumba urethane bonds. Sezvo kuita kuchiwedzera, viscosity yemusanganiswa inowedzera, zvichizopedzisira zvashandura system yemvura kuita chinhu chakafanana ne gel. Kukura uye kumhanya kwekuita uku zvinoenderana nezvinhu zvakati wandei, kusanganisira rudzi rwe polyol ne isocyanate zvinoshandiswa, tembiricha, hunyoro, uye chinonyanya kukosha, catalyst inosarudzwa.
Basa reCatalysts muGelation
MaCatalyst akakosha pakudzora mwero we gelation reaction, zvichiita kuti pave netiweki ye polyurethane yakagadzikana.Zvinokurumidzisa kuita kwe polyols ne polyisocyanates, zvichiita kuti kuchinja kubva pachinhu chemvura kuenda kuchimiro chefuro chakasimba kuve nyore.
Chimwe chezvinhu zvakakosha pakugadzira furo re polyurethane iMXC-T9, chinhu chakasimba chinobva musimbi chakagadzirirwa zvakanangana nekuchinja kwe gelation. MXC-T9 inopa kutonga kwakanaka pamusoro pe reaction rate, ichivimbisa kushanda kwakafanana uye kugadzikana mukati mekuita kwefuro. Yakanyatsokodzerafuro rakapfava repolyurethanekugadzirwa uye inoshanda sechinhu chikuru chinokonzera gel mufuro repolyurethane rakagadzirwa nepolyether.
Zvinhu Zvikuru zveMXC-T9
- Chinosimudzira Simba uye Chakagadzikana:MXC-T9 chinhu chinobatsira pakugadzira simbi chinoita kuti pave nekushanda kwakasimba uye kunogara kwenguva refu kwese kunokonzereswa nechinhu ichi, zvichiita kuti pave nemafuro emhando yepamusoro ane hunhu hwakaenzana uye hunofungidzirwa.
- Kushandiswa Kwazvo Kwakasiyana-siyana:Kunyange zvazvo ichinyanya kushandiswa pakuita gelation reaction mu polyether-based polyurethane foam, MXC-T9 inogonawo kushanda senzira yekudzivirira kupisa.antioxidantkuvandudza kugadzikana uye kugara kwenguva refu kwefuro.
- Hunhu Hwakawedzerwa hweFoam:Nekudzora maitiro ekugadzira ganda, MXC-T9 inobatsira kugadzira furo rine chimiro chakakodzera, kuomarara, uye kusimba, zvichiita kuti rive rinokosha pakugadzira furo rakapfava repolyurethane.
Mhedziso
Kugadziriswa kwe gelation idanho guru pakuumbwa kwe polyurethane foam, uko polyols ne polyisocyanates zvinoita kuti zvigadzire network yakagadzikana ye polyurethane. Kushandisa catalyst inoshanda sengeMXC-T9 inoita kuti zvinhu zvifambe zvakanaka uye inogadzira furo remhando yepamusoro rine hunhu hwaunoda. Kugadzikana kwakanaka uye kushanda kwakafanana kweMXC-T9 kunoita kuti ive chinhu chakakosha pakugadzira furo re polyurethane rinochinjika, zvichiita basa rakakosha mukuwana zvigadzirwa zvefuro zvinovimbika uye zvinoshanda zvakanyanya.
Nguva yekutumira: Kukadzi-18-2025