Phthalic Anhydride Polyester polyol
Letoto lena la polyols haholo-holo ke li-polyester tse nkhang hamonate tse lokiselitsoeng ke polycondensation kapa phetoho ea phthalic anhydride, diethylene glycol le lisebelisoa tse ling tse tala.Li sebelisoa haholo-holo tšimong ea foam e thata le li-adhesives.Li na le melemo ea monko o tlase, 'mala o tlase, ts'ebetso e phahameng ea karabelo, botsitso bo botle ba hydrolysis, litaba tse nkhang hamonate, botsitso bo botle le mokelikeli oa lisebelisoa tse kopaneng, 'me sebopeho sa sehlahisoa se ka fetoloa ho latela litlhoko tsa bareki.
Letoto lena la polyester polyols le ka sebelisoa haholo ka sehatsetsing, polokelo e batang, ho fafatsa, matla a letsatsi, liphaephe tsa mocheso, ho pata mohaho le libaka tse ling tsa ho hlophisoa ha foam e thata, tse ling tsa lihlahisoa tse khomarelang.
| letoto | Lintho | Boleng ba Hydroxyl (mgKOH/g) | Boleng ba asiti (mgKOH/g) | Likahare tsa metsi (％) | Viscosity ea mocheso oa kamore (25 ℃, cps) |
| Letoto la phthalic anhydride le li-acid tse ling tse nkhang hamonate tsa dibasic | PE-B175 | 170-180 | ≤1.0 | ≤0.05 | 9000-13000 |
| PE-B503 | 300-330 | ≤1.0 | ≤0.05 | 2000-4000 | |
| PE-D504 | 400-450 | ≤2.0 | ≤0.1 | 2000-4000 | |
| PE-D505 | 400-460 | ≤2.0 | ≤0.1 | 2000-4000 |
