Foam yePolyurethane (PU foam) chinhu chakakosha mumaindasitiri akawanda, anosanganisira kuvaka, kugadzira mota, kurongedza, uye kuputira. Maitiro ekuumbwa kwefoam yePU anosanganisira kuita kwemapolyol ane isocyanates, uye macatalysts anodzora kumhanya kwekuita, maitiro ekufuridza furo, uye chimiro chefuro.Zvinhu zvinokonzeresa polyurethanezvakaita seMXC-37 (DMAEE) zvinoita basa rakakosha mukushandiswa uku, zvichivandudza hunhu hwefuro uye zvichiwedzera kushanda zvakanaka kwekugadzira. Chinyorwa chino chichasuma nzvimbo dzekushandisa furo rePU uye kutsanangura mashandiro ekugadzirwa kwefuro, tichitarisa basa reMXC-37.
Mashandisirwo ePolyurethane Foam
Foam yepolyurethane inoshandiswa mumhando dzakasiyana-siyana nekuda kwekushandiswa kwayo kwakawanda, senge kupisa kwakanyanya, kunyungudutsa shock, uye hunhu hwakareruka. Mhando mbiri huru dzefoam yepolyurethane, foam yakasimba uye foam inochinjika, inosangana nezvinodiwa zvakasiyana zvemaindasitiri.
Furo repolyurethane rakaomarara: Furo repolyurethane rakasimba rinoshandiswa zvakanyanya pakudzivirira kupisa. Nekuda kwehunhu hwaro hwakanaka hwekudzivirira kupisa, rinowanzoshandiswa mukuvaka zvivakwa, mafiriji, mafiriji, mayunitsi ekuchengetera zvinhu zvinotonhora, uye kutakurwa kwezvinhu zvinonzwa kupisa. Furo rakasimba rinowanzova nemasero akavharwa, izvo zvinovabatsira kuchengetedza simba ravo, kugara kwenguva refu, uye hunhu hwekudzivirira kupisa.
Furo repolyurethane rinochinjika: Foam inochinjika yepolyurethane inoshandiswa zvakanyanya mukugadzira matiresi, macushion, zvigaro zvemota, uye insulation yekupisa yemapaipi nematangi. Inopa nyaradzo, rutsigiro, uye inonyudza ruzha zvakanaka, zvichiita kuti ive sarudzo inozivikanwa muindasitiri yefenicha nemotokari.
Mafuro akakosha: Mafuro epolyurethane anogonawo kushandiswa mune zvimwe zvinhu zvine hunyanzvi, zvakaita sekugadzira mafuro e microcellular, elastomers, uye zvinhu zvakasimba zvekurongedza furo. Mafuro aya ane hunhu hwakasiyana hunosangana nezvinodiwa zvakaita sekutsungirira kwakanyanya, kuchinjika, uye kuderedza huremu.
Maitiro Ekugadzira Foam yePolyurethane
Maitiro ekugadzira furo repolyurethane anosanganisira maitiro ari pakati pemapolyol nemaisocyanates, zvichibatsirwa nemacatalysts, ma blowing agents, uye stabilizers. Maitiro aya anogadzira matrix epolymer nemagasi, zvichikonzera chimiro chefuro. Maitiro ari shure kwekugadzirwa uku anogona kukamurwa kuita kuumbwa kwefuro remasero akavhurika uye furo remasero akavharika.
1. Kuumbwa kweFoam yeSero Rakavhurika
Furo remaseru akavhurika rinoumbwa kana mabhuru anogadzirwa panguva yekubuda kwefuro achityoka nekuda kwekumanikidzwa kwegasi mukati mebhuru. Kana kumanikidzwa kuri mukati memabhuru kukawedzera, madziro emabhuru, ayo anoumbwa nekuita kwejeli, anowanzo shaya simba rekutsungirira kumanikidzwa kwegasi remukati. Izvi zvinotungamira pakutsemuka nekuburitswa kwegasi kubva mubhuru. Nekuda kweizvozvo, chimiro chefuro chinova sero rakavhurika.
Kuumbwa kwefuro remasero akavhurika kunonyanya kukonzerwa nekumhanya kwegelation uye simba remadziro epolymer. Chikamu chemaseru akavhurika mufuro chine simba guru pahunhu hwechinhu chacho. Semuenzaniso, huwandu hwakawanda hwemasero akavhurika hunogona kuwedzera kupenya kwemvura, kuderedza hunhu hwekudzivirira, uye kukanganisa kugadzikana kwefuro. Mumafuro akawanda akaomarara, huwandu hwemasero akavhurika hunenge hwakaderera, kazhinji pakati pe5% ne10%, nepo 90% yasara kusvika 95% ichiumbwa nemasero akavharika.
2. Kuumbwa kweFoam yeMasero Akavharwa
Mafuro emasero akavharwa anozivikanwa nechimiro chawo chemasero chakasimba uye chakafanana, uko gasi rinovharirwa mukati memasero, zvichiita kuti furo rive rakasimba uye rakagadzikana. Kumhanya kwejel mumasisitimu efuro emasero akavharwa kunowanzo kurumidza, kuchibatsirwa nemapolyether polyols ane mabasa akawanda, ane uremu hushoma hwemamorekuru uye polyisocyanates. Aya masisitimu anokurumidza kuita basa anovimbisa kuti gasi riri mukati memabubbles harina nguva yekubuda furo risati raoma, zvichikonzera chimiro chefuro chinodzorwa nemasero akavharwa.
Mafuro epolyurethane akasimba ane masero akavharika anopa kuputira kuri nani uye anowanzo shandiswa mumaindasitiri akadai sekuvaka, uko hunhu hwekudzivirira kupisa hunokosha. Anoshandiswawo mukuchengetedza kutonhora nekuda kwekugona kwawo kuchengetedza kupisa uye kudzivirira kupinda kwehunyoro.
Basa reMXC-37 (DMAEE)mukugadzirwa kwePolyurethane Foam
MXC-37, inozivikanwawo seDMAEE (Dimethylaminoethoxyethanol), chinhu chinobatsira amine chisina utsi, chisinganhuhwi zvakanyanya chinoshandiswa zvakanyanya mukugadzira mafoam epolyurethane. Kushanda kwayo kukuru kwefuro kunoita kuti ive yakakodzera zvakanyanya kune mafomu ane mvura yakawanda, akadai sefuro repolyurethane (SPF) rine porous, rakapfava.
MXC-37 inoshanda sechinhu chinobatsira kukurumidza kuita isocyanate-polyol reaction, ichikurudzira kuumbwa kwechimiro chefuro. Chimwe chezvakanakira zvikuru zveMXC-37 kugona kwayo kuderedza kana kubvisa hwema hwema hweamine hunowanzobatanidzwa nekugadzirwa kwefuro repolyurethane. Izvi zvinoita kuti ive yakakodzera kushandiswa uko kudzora hwema kwakakosha, senge mukudzivirira hwema hwemumba nemabhizimisi.
Pamusoro pebasa rayo sechinokonzeresa chikuru, MXC-37 inogonawo kushandiswa sechinokonzeresa pamwe chete nezvimwe zvinokonzeresa amine, zvakaita seBDMAEE, kuvandudza kushanda kwese kwekuita. Nekuderedza kushandiswa kwemaamine akasimba, MXC-37 inobatsira kuderedza kusvibiswa, zvichiita kuti ive sarudzo isingakuvadzi nharaunda yekugadzira furo repolyurethane.
MXC-37 inoshandiswa mumhando dzakasiyana-siyana dzemafoam, kusanganisira:
- Mafuro akapfava akavakirwa paEster stabilizer: Kune zvinoshandiswa zvinoda furo rakapfava uye rinochinjika.
- Mafuro e microcellular: Kuti utonge zvakanaka chimiro chefuro.
- Elastomers neRIM: Mukugadzirwa kwezvinhu zvinochinjika uye zvinogara kwenguva refu zvefuro.
- Kurongedza furo kwakasimba: Kune mashandisirwo anoda simba rakawanda remakanika uye kuputira kupisa.
Mhedziso
Foam yePolyurethane chinhu chinoshandiswa zvakasiyana-siyana uye chinoshandiswa zvakanyanya muindasitiri dzakawanda nekuda kwekudzivirira kwayo kupisa, kudzima vibration uye hunhu hwayo hunogona kugadziriswa. MaCatalysts akadai seMXC-37 anoita basa rakakosha mukugadzirwa kwefoam yepolyurethane sezvo achibatsira kudzora maitiro ekufuridza furo, kuvandudza mashandiro echigadzirwa uye kuderedza kunhuhwirira kusingadiwe uye kuburitswa kwemhepo. Kunzwisisa nzira dziri shure kwekuumbwa kwefoam, ingave yakavhurika kana yakavharwa, kunoita kuti vagadziri vagadzire zvigadzirwa zvinoenderana nezvinodiwa chaizvo, kubva pazvinhu zvinodzivirira kusvika kune mafoam akakosha emaindasitiri akasiyana-siyana.
Nguva yekutumira: Kukadzi-24-2025