Foam yePolyurethane chinhu chakakosha mumapaneru esandwich, ichipa kudziya kwakanaka, kugadzikana kwechimiro uye kushanda zvakanaka kwekupisa. Mapaneru esandwich anowanzo shandiswa mukuvaka zvivakwa, nzvimbo dzekuchengetera zvinhu zvinotonhora uye zvivakwa zvemaindasitiri, uye ane zvikamu zviviri zvitete zvezvinhu zvakasimba uye foam yepolyurethane yakareruka. Foam yepakati yakagadzirwa ne polyurethane rigid foam uye inobatsira zvikuru mukushanda kwepaneru maererano nekupisa, kudzivirira moto uye kusimba kwechimiro. Hunhu hwefoam core iyi hunonyanya kuenderana ne polyurethane catalyst inoshandiswa mukugadzirwa kwayo.
Zvishandiso zvepolyurethane zvinoita basa rakakosha mukuita kwemakemikari zvinoshandura mapolyol nemaisocyanates kuita furo rakaomarara. Izvi zvinomhanyisa maitiro ekufuridza nekupona, zvichiita kuti chimiro chemasero chive chakafanana, kubatana kwakakodzera uye hunhu hwakanaka hwemuviri. Chimwe chezvinhu zvakadaro zvinobatsira ndecheMXC-15, mushonga we potassium octoate (CAS 3164-85-0), unochinja zvakanyanya uye unodhura zvishoma, isocyanurate catalyst. Inonyanya kukodzera ma polyol formulations ane viscosity yakawanda uye inogona kukurudzira zvinobudirira isocyanate reaction.
Kushandiswa muSandwich Panels
Pakati pefuro repolyurethane mumapaneru esandwich rinofanira kusangana nezvinodiwa kuti pani rishande zvakanaka. Semuenzaniso, furo rinofanira kunge rakareruka asi rakasimba zvakakwana kuti rigone kumira simba rekumanikidzwa uye kupa dziviriro yekupisa. Uyezve, mune mamwe mashandisirwo, akadai sekuchengetera zvinhu muchando kana kutonhora mumaindasitiri, kudzivirira moto kwakakosha.MXC-15Inoshanda zvakanyanya uye inobatsira kugadzira furo repolyisocyanurate (PIR), rinozivikanwa nekudzivirira kwaro moto zvakanyanya, zvichiita kuti rive rakakodzera kushandiswa kwakadaro.
Mafuro ePIR ane chikamu chikuru chezvisungo zveisocyanurate kupfuura mafuro e polyurethane akajairika, zvichivapa simba rekudzivirira moto. MXC-15 inokurudzira kuumbwa kwezvisungo izvi, ichiva nechokwadi chekuti furo rekupedzisira rine hunhu hunodiwa pamapaneru esandwich. Izvi zvinoita kuti masisitimu ePIR foam anotsigirwa neMXC-15 ave sarudzo yakakurumbira yemapaneru anofanirwa kutevedzera mitemo yakasimba yemoto.
Kukanganisa Hunhu hweChigadzirwa
Kusarudzwa kwe catalyst kune simba guru pamhando ye sandwich panel foam core. Ma catalyst akaita se MXC-15 anoita kuti furo riite zvakanaka uye rinodzorwa, zvichikonzera kuti pave nechimiro chefuro chakafanana. Izvi zvakakosha zvikuru mukugadzirwa kwema sandwich panels, sezvo kufanana kwehuwandu hwefuro nehukuru hwemasero zvichikanganisa hunhu hwe thermal insulation uye simba re sandwich panel. Furo re polyurethane rakagadzirwa zvakanaka pamwe chete nema catalysts akakodzera zvinogona kuderedza zvakanyanya kutamiswa kwekupisa, zvichivandudza kushanda kwe insulation uye kugara kwenguva refu kwema sandwich panels.
Pamusoro pezvo, kushandisa ma catalysts anoshanda zvakanyanya akadai seMXC-15 kunogona kugadzira furo rakasimba risina zvikanganiso zvakawanda. Kukwira kwakadzorwa uye gelation profile kunoderedza mukana wekuti furo rive risina simba kana kuti nzvimbo dzisina kusimba mufuro, zvichiita kuti pave nechokwadi chekuti sandwich panel iri kushanda zvakanaka. Pamusoro pezvo, MXC-15 yakakodzera ma polyol formulations ane viscosity high, zvichiita kuti ienderane nemhando dzakasiyana siyana, zvichiita kuti ive sarudzo inoshanda kune vagadziri vari kutsvaga kugadzirisa maitiro avo ekugadzira mapaneru.
Muchidimbu, ma "polyurethane catalysts" akadai seMXC-15 anoita basa rakakosha mukugadzira ma "sandwich panel", kunyanya mukugadzirwa kwe "PIR foam cores". Kukanganisa kwavo pamhando ye "foam", hunhu hwekupisa uye kudzivirira moto hakugone kurerutswa. Nekusarudza "catalyst" chaiyo, vagadziri vanogona kugadzira ma "sandwich panels" anosangana nemazinga epamusoro ekushanda uye ekuchengetedza, zvichiita kuti ave sarudzo yakakura yekushandiswa kwakasiyana-siyana kwekuvaka nemaindasitiri.
Nguva yekutumira: Ndira-06-2025