Atlanta, GA - Kubva Gunyana 30 kusvika Gumiguru 2, iyo Omni Hotel kuCentennial Park ichaita 2024 Polyurethanes Technical Musangano, ichiunza pamwechete nyanzvi dzinotungamira uye nyanzvi kubva kuindasitiri yepolurethane pasi rese. Yakarongwa neAmerican Chemistry Council's Center yePolyurethanes Indasitiri (CPI), musangano uyu une chinangwa chekupa chikuva chezvidzidzo zvedzidzo uye kuratidza hutsva huchangoburwa mumakemikari epolurethane.

Polyurethanes inozivikanwa seimwe yeanonyanya kushandiswa epurasitiki zvinhu zviripo nhasi. Zvimiro zvavo zvemakemikari zvakasiyana-siyana zvinovabvumira kuti vagadziriswe kune zvakasiyana-siyana zvekushandisa, kugadzirisa matambudziko akaoma uye kuumbwa mumhando dzakasiyana-siyana. Uku kuchinjika kunowedzera zvese zvigadzirwa zvemaindasitiri nevatengi, zvichiwedzera nyaradzo, kudziya, uye nyore kuhupenyu hwezuva nezuva.

Kugadzirwa kwe polyurethanes kunosanganisira kuita kwemakemikari pakati pema polyols - doro rine anopfuura maviri reactive hydroxyl mapoka - uye diisocyanates kana polymeric isocyanates, inofambiswa neakakodzera catalysts uye additives. Musiyano weanowanikwa diisocyanates uye polyols unogonesa vagadziri kugadzira yakafara spectrum yezvinhu zvakagadzirirwa kune chaiwo mashandisirwo, zvichiita kuti polyurethanes ibatanidze kune akawanda maindasitiri.

Polyurethanes anowanikwa kwese muhupenyu hwazvino, anowanikwa mumhando dzakasiyana dzezvigadzirwa kubva kumatiresi nemasofa kusvika kune zvekudzimisa zvinhu, marata emvura, uye pendi. Anoshandiswawo mumagetsi anogara akasimba, akadai semavhiri eblade, matoyi akapfava efuro, uye elastic fibers. Kuvapo kwavo kwakapararira kunosimbisa kukosha kwavo mukusimudzira kuita kwechigadzirwa uye kunyaradza kwevatengi.

Iyo kemikari kuseri kwekugadzirwa kwepolyurethane inonyanya kusanganisira zvinhu zviviri zvakakosha: methylene diphenyl diisocyanate (MDI) uye toluene diisocyanate (TDI). Makomponi aya anopindirana nemvura mumhoteredzo kuti aumbe yakasimba inert polyureas, ichiratidza kuchinjika uye kuchinjika kwekemikari yepolyurethane.

Iyo 2024 Polyurethanes Technical Musangano ichave neyakasiyana yezvikamu zvakagadzirirwa kudzidzisa vanopinda nezvekufambira mberi kwazvino mumunda. Nyanzvi dzichakurukura maitiro ari kubuda, mashandisirwo matsva, uye remangwana re polyurethane tekinoroji, ichipa ruzivo rwakakosha kune nyanzvi dzeindasitiri.

Sezvo musangano unosvika, vatori vechikamu vanokurudzirwa kuita nevezera ravo, kugovana ruzivo, uye kuongorora mikana mitsva mukati mechikamu chepolyurethane. Ichi chiitiko chinovimbisa kuve kuunganidza kwakakosha kune avo vanobatanidzwa mukuvandudza nekushandiswa kwe polyurethane zvinhu.

Kuti uwane rumwe ruzivo nezveAmerican Chemistry Council uye musangano unouya, shanya www.americanchemistry.com.