Classified according to substituents, cellulose ethers can be divided into single ethers and mixed ethers; classified according to solubility, cellulose ethers can be divided into water-soluble and water-insoluble.
The main classification method of cellulose ether is to classify according to ionization:
Classified according to ionization, cellulose ether can be divided into non-ionic, ionic and mixed types.
Nonionic cellulose ethers include hydroxypropyl methyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and hydroxyethyl methylcellulose, of which ethyl cellulose is water insoluble.
Ionic cellulose is sodium carboxymethyl cellulose.
Mixed celluloses include hydroxyethyl carboxymethyl cellulose and hydroxypropyl carboxymethyl cellulose.
The role of cellulose ether：
Construction sector:
Masonry mortar can retain water and thicken, improve workability, improve construction conditions, and increase efficiency.
External wall insulation mortar can increase the water retention capacity of the mortar, improve fluidity and construction, improve the initial strength of the mortar and avoid cracking.
Tile bonding mortar can improve the anti-sagging ability of the bonding mortar, improve the early bonding strength of the mortar, and resist strong shear force to prevent the tiles from slipping.
Self-leveling mortar, which can improve the fluidity and anti-settling performance of the mortar, and facilitate construction.
Water-resistant putty, can replace traditional industrial glue, improve the water retention, viscosity, scrub resistance and adhesion of putty, and eliminate the hazard of formaldehyde.
Gypsum mortar can improve thickening, water retention and retardation.
latex paint, can thicken, prevent pigment gelation, help pigment dispersion, improve the stability and viscosity of latex, and help the leveling performance of construction.
PVC, can act as a dispersant, adjust the density of PVC resin, improve resin thermal stability and control particle size distribution, improve the apparent physical properties, particle characteristics and melt rheology of PVC resin products.
ceramics, can be used as a binder for ceramic glaze slurry, which can suspend, decondense, and retain water, increase the strength of raw glaze, reduce the drying shrinkage of glaze, and make the embryo body and glaze firmly bonded and not easy to fall off.
Medicine field:
Sustained and controlled release preparations can achieve the effect of slow and sustained release of drugs by making skeleton materials, so as to prolong the drug effect time.
Vegetable capsules, making them gel and film-forming, avoiding cross-linking and curing reactions.
Tablet coating, so that it is coated on the prepared tablet to achieve the following purposes: to prevent the degradation of the drug by oxygen or moisture in the air; to provide the desired release mode of the drug after administration; to mask the bad smell or odor of the drug or to improve appearance.
Suspending agents, which reduce the sedimentation velocity of drug particles throughout the medium by increasing viscosity.
Tablet binders are used during granulation to cause binding of powder particles.
Tablet disintegrant, which can make the preparation disintegrate into small particles in the solid preparation so that it can be easily dispersed or dissolved.
Food field:
Dessert additives, can improve taste, texture and texture; control the formation of ice crystals; thicken; inhibit food moisture loss; avoid filling.
seasoning additive, can thicken; increase the stickiness and taste persistence of sauce; help thicken and shape.
Beverage additives, generally use non-ionic cellulose ether, which can be compatible with drinks; help suspension; thicken, and will not cover the taste of drinks.
Baking food additive, can improve texture; reduce oil absorption; inhibit food moisture loss; make it more crispy, and make the surface texture and color more uniform; the superior adhesion of cellulose ether can improve the strength, elasticity and elasticity of flour products Taste.
Squeeze food additives to reduce dust generation; improve texture and taste.
Post time: Apr-28-2024