Feem ntau siv cov kuab tshuaj sib xyaw rau ethyl cellulose (DS: 2.3 ~ 2.6) yog cov tshuaj tsw qab hydrocarbons thiab cawv.Aromatics tuaj yeem siv benzene, toluene, ethylbenzene, xylene, thiab lwm yam., qhov ntau npaum li cas yog 60 ~ 80%;cawv tuaj yeem yog methanol, ethanol, thiab lwm yam., qhov ntau npaum li cas yog 20 ~ 40%.Lub EC tau maj mam ntxiv rau cov co...
Nyeem ntxiv