Trimethylolpropane (TMP) ndi chinthu chofunika kwambiri chomwe chimagwiritsidwa ntchito kwambiri, monga ma alkyd resins, polyurethanes, unsaturated resins, polyester resins, ndi zokutira. Kuphatikiza apo, TMP imagwiritsidwa ntchito popanga mafuta oyendera ndege, inki zosindikizira, ndipo imagwira ntchito ngati chothandizira komanso chokhazikika cha nsalu cha polyvinyl chloride (PVC) resins.
Monga chowonjezera unyolo chomwe chimagwiritsidwa ntchito kwambiri mumakampani opanga utomoni, TMP ndi chinthu chofunikira kwambiri chomwe chimalimbikitsa kukweza mafakitale a gawo la polyols. Kapangidwe kake kapadera ka molekyulu kamapatsa malo otsika osungunuka komanso mawonekedwe ofanana ndi glycerol. TMP singangolowa m'malo mwa glycerol popanga ma resin a alkyd komanso imagwirizana ndi ma polyol ena monga neopentyl glycol ndi pentaerythritol, zomwe zimapangitsa kuti mitundu ya ma resin a alkyd isiyane. Kusinthasintha kumeneku kumawonjezera magwiridwe antchito ndi kusinthasintha kwa zinthu zopangidwa ndi utomoni, ndikulimbitsa gawo lofunikira la TMP pakupititsa patsogolo luso la zinthu komanso kugwiritsa ntchito bwino ntchito m'mafakitale osiyanasiyana.
Ma resini a Alkyd opangidwa pogwiritsa ntchito TMP ali ndi kukana kwapadera kwa hydrolysis, kukhazikika kwa okosijeni, kukana kwa alkali, ndi kukhazikika kwa kutentha, zomwe zimapangitsa kuti akhale oyenera kwambiri kupanga utoto wolembera pamsewu. Amagwiritsidwanso ntchito kwambiri popanga utoto wa topcoat wamagalimoto, mafiriji, makina ochapira, ndi zida zina zapakhomo. Kuphatikiza apo, TMP imagwira ntchito yofunika kwambiri popanga ma surfactants, zinthu zonyowetsa, zophulika, mapulasitiki, mapulasitiki olimbikitsidwa ndi fiberglass, ma rosin esters, mafuta opaka ndege apamwamba, zinthu zopangira ulusi, inki zosindikizira, ndi ma polyurethane foams, omwe amagwira ntchito ngati resin chain extender, nsalu yothandiza, komanso yokhazikika pa kutentha kwa ma resini a PVC.
Zochokera ku TMP zimagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana, zomwe zimagwira ntchito ngati zinthu zolumikizirana, zinthu zochiritsa, zinthu zotulutsira, zinthu zotulutsa, ndi zinthu zoyambitsa. Zimagwiritsidwanso ntchito popanga ma electrode amadzimadzi okhala ndi kusankha kwakukulu kwa ma sodium ions.
TMP imagwiritsidwa ntchito makamaka ngati zinthu zopangira zinthu zochiritsira za PU, kupanga zokutira za UV, komanso kupanga ma resin apamwamba a alkyd. Ku China, kugwiritsidwa ntchito kwake kumaposa 70% ya ndalama zonse zomwe trimethylolpropane imagwiritsira ntchito m'nyumba. Kuphatikiza apo, TMP imagwira ntchito yofunika kwambiri popanga ma resin a polyester ndi titanium dioxide.
TMP ili ndi udindo waukulu pakupanga ma alkyd resins apamwamba, omwe amagwiritsidwa ntchito kwambiri mu utoto wapamwamba wamagalimoto ndi zinthu zophikira zithunzi za utoto ndi inki. Pamene mtundu wa zinthu m'mafakitale a magalimoto ndi zida zapakhomo ku China ukupitirira kukula, kufunikira kwa zokutira zapamwamba kwakwera kwambiri. Pakalipano, malamulo okhwima kwambiri okhudza chilengedwe apangitsa kuti kufunikira kwa zinthu zophikira zithunzi kukule kwambiri. Chifukwa chake, kufunikira kwa TMP kukuyembekezeka kukula kwambiri m'zaka zikubwerazi.
Nthawi yotumizira: Marichi-20-2025