When purchasing HPMC, there is no actual experimental operation, what are the simple methods to judge the quality of HPMC, how to choose high quality HPMC? By visually judging the quality of HPMC. (1) Whiteness: The quality of products with good whiteness is relatively good. Although whiteness does not determine the quality, good quality products …
Cellulose is the oldest and richest natural polymer compound on earth. It is the most precious natural renewable resource for human beings.Cellulose is chemically modified to obtain a series of cellulose derivatives. The natural cellulose is alkalized, neutralized by etherification, purified and dried to prepare a cellulose ether. Cellulose ether is one of the important …
The Generation of HPMC Hydroxypropyl methyl cellulose（HPMC）is selected from highly pure cotton cellulose as raw material, treated with lye at 35-40 ° C for half an hour, pressed, The cellulose was pulverized and appropriately aged at 35 ° C so that the average degree of polymerization of the obtained alkali fibers was within a desired …
