4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2

4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA, CAS nambala 19900-72-2, imagwiritsidwa ntchito ngati chowonjezera unyolo wa polyurethane elastomers komanso ngati chothandizira kuchiritsa resin ya epoxy kuti ikonze mphamvu zamakaniko ndi mphamvu za zinthu. MED ingagwiritsidwenso ntchito ngati chophatikiza chotsogola cha polyimides komanso ngati cholumikizira cha kapangidwe ka organic.

Yoyenera kwambiri popanga polyurethane (CPU), thermoplastic polyurethane (TPU), RIM elastomers ndi spray polyurea m'munda wa polyurethane. MED imagwiritsidwanso ntchito popanga, prepreg ndi mankhwala oletsa kuwononga zinthu m'munda wa epoxy resin. MED imagwiritsidwa ntchito popanga ma prepolymers, kuphatikizapo polyether ndi polyester.

MED ndi njira yabwino kwambiri yogwiritsira ntchito zinthu zomalizidwa zomwe zimafuna mtundu wopepuka komanso zoletsa ukalamba. MED ingagwiritsidwe ntchito ndi mankhwala ena ochiritsira a mtundu wa amine (chosakaniza) kuti ikwaniritse mawonekedwe abwino.

MED ndi MOCA zonse ndi mankhwala ochiritsira a mtundu wa amine. Komabe, MED ndi yochezeka ku chilengedwe ndipo siiipitsidwa kwambiri poyerekeza ndi MOCA. MED imathanso kulowa m'malo mwa MBOEA ndi HQEE pazinthu za PU, kaya ndi CPU (casting polyurethane) kapena TPU (thermoplastic polyurethane). Mofanana ndi MOCA, ma elastomer a mtundu wa MED ali ndi kukana kutentha kwambiri komwe kumafuna kugwira ntchito pa kutentha kopitilira 120℃.