Atlanta, GA – Kubva musi wa30 Gunyana kusvika 2 Gumiguru, Omni Hotel iri kuCentennial Park ichaita Musangano wePolyurethanes Technical Conference wa2024, uchiunganidza nyanzvi dzinotungamira nenyanzvi kubva muindasitiri yepolyurethane pasi rose. Yakarongwa neAmerican Chemistry Council's Center for the Polyurethanes Industry (CPI), musangano uyu une chinangwa chekupa chikuva chemisangano yekudzidzisa uye kuratidza zvinhu zvitsva zvitsva mu polyurethane chemistry.

Mapurasitiki ePolyurethane anozivikanwa seimwe yezvinhu zvepurasitiki zvinoshandisa simba rakawanda zviripo nhasi. Hunhu hwawo hwemakemikari hwakasiyana hunoabvumira kuti agadzirirwe kushandiswa kwakasiyana-siyana, kugadzirisa matambudziko akaomarara uye kuumbwa kuita maumbirwo akasiyana-siyana. Kuchinjika uku kunovandudza zvigadzirwa zvemaindasitiri nezvevatengi, zvichiwedzera nyaradzo, kudziya, uye nyore kuhupenyu hwezuva nezuva.

Kugadzirwa kwepolyurethanes kunosanganisira maitiro emakemikari pakati pemapolyols—doro rine mapoka anopfuura maviri ehydroxyl—uye madiisocyanates kana kuti polymeric isocyanates, zvichibatsirwa nemacatalysts akakodzera uye zvinowedzerwa. Kusiyana-siyana kwemadiisocyanates nemapolyols kuripo kunoita kuti vagadziri vagadzire zvinhu zvakasiyana-siyana zvakagadzirirwa mashandisirwo chaiwo, zvichiita kuti mapolyurethanes ave akakosha mumaindasitiri akawanda.

Mapolyurethanes aripo kwose kwose muhupenyu hwemazuva ano, anowanikwa muzvigadzirwa zvakasiyana-siyana kubva kumatiresi nemasofa kusvika kuzvinhu zvinodzivirira kupisa, machira emvura, uye pendi. Anoshandiswawo muma elastomers akasimba, akadai semavhiri e roller blade, matoyi efoam anochinjika, uye mafiber elastic. Kuvapo kwawo kwakapararira kunoratidza kukosha kwawo mukusimudzira mashandiro ezvigadzirwa uye kunyaradzwa kwevatengi.

Kemikari iri shure kwekugadzirwa kwepolyurethane inonyanya kusanganisira zvinhu zviviri zvakakosha: methylene diphenyl diisocyanate (MDI) uye toluene diisocyanate (TDI). Makemikari aya anosangana nemvura iri munharaunda kuti agadzire mapolyurea asina simba, zvichiratidza kugona kwayo kuchinjika uye kuchinjika.

Musangano weTechnical wePolyurethanes wegore ra2024 uchava nemisangano yakasiyana-siyana yakagadzirirwa kudzidzisa vanenge varipo nezvekufambira mberi kuri kuitika mumunda uyu. Nyanzvi dzichakurukura nezvemaitiro ari kubuda, mashandisirwo matsva, uye remangwana retekinoroji yepolyurethane, zvichipa ruzivo rwakakosha kune nyanzvi dzeindasitiri.

Musangano uyu zvawava kusvika, vatori vechikamu vanokurudzirwa kuti vabatane nevamwe vavo, vagovane ruzivo, uye vaongorore mikana mitsva iri muchikamu chepolyurethane. Chiitiko ichi chinovimbisa kuva gungano rakakosha kune avo vari mukugadzira nekushandisa zvinhu zvepolyurethane.

Kuti uwane rumwe ruzivo nezveAmerican Chemistry Council nemusangano uri kuuya, shanyirai www.americanchemistry.com.