Trimethylolpropane (TMP) yog ib hom polyol compound nrog cov qauv molecular C₆H₁₄O₃ thiab cov txheeb ze molecular loj ntawm 134.17. Nws cov qauv molecular muaj peb pawg hydroxyl, sib tham txog kev ua haujlwm siab thiab ua rau nws ua rau muaj ntau yam sib txuas xws li carboxylic acids thiab isocyanates. Nyob rau hauv chav tsev kub, TMP feem ntau tshwm raws li ib tug dawb crystalline khoom thiab ua pov thawj zoo tshuaj thiab thermal stability.
Vim nws peb pawg hydroxyl, TMP yog tus cwj pwm los ntawm kev ua haujlwm tseem ceeb. Hauv cov tshuaj tiv thaiv polymerization, nws tuaj yeem sib txuas nrog ntau pawg reactive ib txhij, ua rau cov saw hlau molecular tsim cov ceg ntoo lossis txawm hla - cov qauv txuas. Yog li ntawd, TMP feem ntau yog siv los ua cov khoom siv raw rau cov khoom siv polymer xws li polyurethanes, alkyd resins, thiab polyester resins. Kho qhov ntau npaum li cas ntawm TMP tso cai rau kev hloov kho ntawm cov polymers branching degree, yog li cuam tshuam rau cov khoom hardness, lub zog, kub tsis kam, thiab tshuaj tsis kam.
TMP muaj ntau yam kev siv; Hauv kev lag luam coatings, nws feem ntau yog siv los tsim alkyd thiab polyester resins, nrog rau polyurethane coatings, adhesives, thiab elastomers. Tsis tas li ntawd, nws ua haujlwm nruab nrab rau kev sib txuas cov yas yas, cov roj nplaum, thiab lwm cov khoom siv ua haujlwm. Piv rau diols, TMP muaj kev ua haujlwm siab dua, muab cov txiaj ntsig sib txawv hauv cov qauv uas muaj kev sib tw nce ntxiv - txuas thiab txhim kho tag nrho cov khoom siv tau zoo.
TMP tau dhau los ua cov khoom siv tseem ceeb hauv cov khoom siv tshuaj zoo thiab cov ntaub ntawv polymer. Kev txhim kho ntawm siab -cov txheej txheem kev ua tau zoo, eco- cov phooj ywg resins, thiab cov khoom siv polymers tau ua rau muaj kev nruj ntxiv txog kev ua kom huv, ruaj khov, thiab kev ua haujlwm ntawm TMP. Lub reactivity thiab branching muaj peev xwm muab tau los ntawm nws cov qauv polyhydroxyl ua rau nws muaj txiaj ntsig zoo rau kev tsim qauv thiab kev ua haujlwm ntawm cov khoom siv polymer.