The dissolution method of hpmc
The product is easily soluble in cold water and can also be used in the following rapid dissolution methods:
1. Take 1 / 5-1 / 3 of the required amount of hot water, stir to fully expand the added product, then add the remaining part of the hot water, you can add cold water, or add ice water, stir to the appropriate temperature ( 10 ° C), it can be completely dissolved.
2. Dry blending: In the case of other powders, it should be thoroughly mixed with the powder, then added with water to dissolve quickly, without agglomeration.
3. Organic solvent wetting method: First, the product is dispersed in an organic solvent or wetted with an organic solvent, and then added to cold water or cold water to dissolve well, and the organic solvent may be selected from ethanol or ethylene glycol.
Reference addition amount about 0.3-0.5% in mortar .
Hydroxy propyl methyl cellulose
(HPMC) is odorless, tasteless,non-toxic cellulose ethers produce from natural high molecula and protective colloid properties of surface activity and maintain moisture function properties ect.cellulose through series of chemical processing and achieved.It is white powder with good water solubility. It has thickening, adhesion ,dispersing, emulsifying, film, suspended, adsorption, gel.HPMC .are widely used in building construction industries, chemical industries, architectural , oil drilling and so on.
In the course of construction,HPMC is used for wall putty, tile adhesive, cement mortar, dry mix mortar, wall plaster, skim coat, mortar, concrete admixtures, cement, gypsum plaster, joints fillers, crack filler, etc.