cellulose
manufacturers in Fujian Province offer sales
b h. Hydroxypropyl methylcellulose (H
)
b:.h Physical and chemical properties
h
h, Appearance: white or off-white powder.
Particle size
The mesh pass rate is greater than.
The mesh pass rate is greater than
.
Carbonization temperature
℃
Apparent density: ../m (
Usually around ./
)
Specific gravity
.
Color change temperature
℃
Surface tension
Aqueous solution is d/m.
Soluble in water and some solvents
Such as ethanol in appropriate proportions/
Water, propanol/
Water, trichloroethane, etc. Aqueous solutions are surface active.
h Main uses
h This product is industrial grade H
. It is mainly used as a dispersant in the production of polyvinyl chloride and is the main additive in the preparation of suspension polymerization
. In addition, it can be used as thickener, stabilizer, emulsifier, excipient, and water retaining agent in the production of other petrochemicals, coatings, building materials, paint removers, agricultural chemicals, inks, textile printing and dyeing, ceramics, papermaking, cosmetics and other products. , film-forming agent, etc. The application in synthetic resins can result in products with regular, loose particles, suitable specific gravity, and excellent processing properties, thus basically replacing gelatin and polyvinyl alcohol as dispersants. In addition, in the construction process of the construction industry, it is mainly used in mechanized construction such as wall building, stucco decoration, and caulking. Especially in decorative construction, it is used to paste ceramic tiles, marbles, and plastic decorations. It has high bonding strength and can also reduce cement consumption. Dosage. Used as a thickening agent in the coating industry, it can make the layer bright and delicate without powder removal, and improve the leveling performance.
h Dissolution method
h
h. Take the required amount of hot water, put it into a container and heat it to
℃ or above. Gradually add this product and fiber while stirring slowly. The substance initially floats on the surface of the water, but is gradually dispersed to form a homogeneous slurry. The solution is cooled with stirring.
Or heat the /
hot water to
above, add cellulose to obtain a hot water slurry, then add the remaining amount of cold water, keep stirring, and cool to obtain The mixture is ready.
4. Precautions for packaging, storage and transportation
Various viscosities (
10,000,.
10,000,
10,000,
10,000), lined with polyethylene Packed in cardboard drums filled with film, net weight per drum:.
Protect from sunlight, rain and moisture during storage and transportation.
h
H cellulose manufacturers in Fujian Province offer sales