Zvinhu zvinodzivirira furo respray zvave tekinoroji muzvivakwa zvemazuva ano, zvine insulation iri nani yekupisa, mhepo inofema uye inodzivirira hunyoro. Pakati peiyi sisitimu yekudzivirira inoshanda zvakanyanya pane polyurethane foam, chinhu chinoumbwa kuburikidza nekuita kwemakemikari pakati pezvikamu zviviri zvikuru: divi re "A" (rinowanzova polyisocyanate) nedivi re "B", iro riri musanganiswa wepolyols, catalysts, blowing agents, flame retardants uye surfactants. Polyurethane catalysts, dzakadai seMXC-BDMA neMXC-TMA, dzinoita basa rakakosha mukufambisa reactions, kugadzirisa kuumbwa kwefuro uye kuona mashandiro anodiwa kune akasiyana maapplication ekudzivirira.
Zvikamu zve "B" divi muSpray Polyurethane Systems
Mumasystem espray polyurethane foam (SPF), divi re "B" rinosanganisira huwandu hwezvimwe zvinowedzerwa zvinoraira mashandiro echigadzirwa chekupedzisira. Izvi zvinowedzerwa zvinosanganisira:
- Polyols: Zvidimbu zvikuru zvinosangana nema isocyanates kuti zvigadzire polyurethane polymer.
- Zvinokonzera: Makemikoro emakemikari anokurumidza kuita pakati pemapolyol nemaisocyanates, zvichiita kuti furo riumbwe uye rigare zvakanaka.
- Zvishandiso Zvinofuridza Furo: Zvinhu zvinobatsira kugadzira chimiro chefuro nekugadzira gasi panguva yekuita.
- Zvinodzivirira Murazvo: Zvinowedzerwa zvinowedzera simba rekudzivirira moto kwefuro.
- Zvinoshandisa ma surfactants: Mishonga inosimbisa chimiro chefuro, zvichiita kuti masero agadzireke zvakaenzana.
MXC-BDMA: Benzyl Dimethylamine Catalyst yeRigid Polyurethane Foam
MXC-BDMA (CAS 103-83-3) chinhu chinobatsira che benzyl dimethylamine chinoshandiswa zvakanyanya muindasitiri ye polyurethane, kunyanya mukushandiswa kwefuro rakaoma. Inonyanya kushanda mukugadzira furo rakasimba re polyurethane, rine hunhu hwakanaka hwekudzivirira kupisa uye hunhu hwaro uye rinowanzoshandiswa kupfapfaidza furo rinodzivirira.
Mabhenefiti makuru eMXC-BDMA mumasisitimu espray foam anosanganisira:
Kukurumidza kuyerera kwemvura: MXC-BDMA inoita kuti musanganiswa we polyurethane urambe uchiyerera zvakanaka panguva yekutanga kwekuita kwefuro, zvichiita kuti ifambe zviri nyore uye izadze mipata kana nzvimbo dzisina kurongeka.
Maumbirwo akafanana emasero: Chinokonzeresa kuumbwa kwemabubble madiki akafanana mukati mefuro, nokudaro zvichivandudza kuputira kwemafuta uye kuve nechokwadi chekugadzikana kwemuchina. Maumbirwo akafanana emaseru anobatsirawo furo kuchengetedza kusimba kwemhepo nguva dzose, izvo zvinovandudza kushanda zvakanaka kwesimba rekudzivirira.
Kunamatira kwakasimba kune substrates: MXC-BDMA inobatsira kunatsiridza kubatana pakati pefuro nezvinhu zvakasiyana-siyana, zvakaita sehuni, simbi nekongiri. Izvi zvinoita kuti furo rinopfapfaidzwa rirambe rakanamira pamusoro pevhu, kunyangwe munzvimbo dzakaoma.
MXC-TMA: Chinosimudzira Polyisocyanurate Foam Systems
Chimwe chinhu chakakosha mu polyurethane yakapfapfaidzwa iMXC-TMA (CAS 75-50-3), chinhu chinobatsira che trimethylamine chakakodzera zvakanyanya ma polyisocyanurate (PIR) foam systems. PIR foam yakafanana ne polyurethane foam, asi fomura iyi ine chikamu chikuru che isocyanates. Kugadziriswa uku kunoita kuti furo rive rakagadzikana zvakanyanya pakupisa uye rirambe richidzivirira moto, zvichiita kuti rive sarudzo yakakura yekushandiswa kwe insulation uko kudzivirira moto kwakakosha.
MXC-TMA inobatsira kuPIR systems nenzira dzakawanda dzinokosha:
Kuenderana nePIR systems: MXC-TMA yakagadzirirwa mafoam e polyisocyanurate kuti ifambise mashandiro acho zvakanaka uye ive nechokwadi chekuti furo rinopora zvakaenzana uye zvakakwana.
Kudzivirira moto kwakavandudzwa: Furo rePIR rinodzivirira murazvo zvakanyanya kana tichienzanisa nefuro repolyurethane. Kushandiswa kweMXC-TMA mumafomura ePIR kunovandudza hunhu uhwu, zvichiita kuti ive sarudzo yekushandisa munzvimbo dzinobvira moto kana kuti dzinopisa zvakanyanya.
Kuumbwa kwefuro rakagadzikana: Kufanana neMXC-BDMA, MXC-TMA inoita kuti furo riumbe chimiro chemasero chakafanana, izvo zvakakosha pakuchengetedza hunhu hwekudzivirira hwechinhu kwenguva refu.
Mafuro ePIR ane MXC-TMA anowanzo shandiswa mudenga rekutengeserana, kuputira madziro, uye mamwe mashandisirwo ekudzivirira epamusoro anoda kuputira madziro uye dziviriro yemoto.
Kukosha kweCatalysts muSpray Foam Insulation
Mukupedzisa, zvinhu zvinokonzeresa polyurethane zvakaita seMXC-BDMA neMXC-TMA zvinhu zvakakosha mu spray foam insulation systems. Zvinobatsira kudzora reactivity, kunatsiridza kuyerera kwefuro uye kufanana kwaro, uye kuona kuti rinonamira zvakasimba uye rakasimba.
Nguva yekutumira: Zvita-11-2024