Viscosity characteristics of hydroxypropyl methyl cellulose aqueous solution

The viscosity of hydroxypropyl methylcellulose aqueous solution is mainly affected by the degree of polymerization of the product, the concentration of the product in the aqueous solution, the shear rate and the temperature of the solution. The viscosity of the aqueous solution increases with the increase of product polymerization degree and concentration, and decreases with the increase of shear rate and solution temperature. According to actual needs, salt and insecticides can also be added to obtain better viscosity characteristics and application performance. The user should consider the actual situation and economy to choose the hydroxypropyl methyl cellulose viscosity specification and addition amount.

This product is an industrial grade HPMC, mainly used as a dispersant in the production of polyvinyl chloride, and is the main auxiliary agent for the preparation of PVC by suspension polymerization. In addition, it is used as thickener, stabilizer, emulsifier, excipient, water retaining agent, film forming in the production of other petrochemicals, building materials, paint removers, agricultural chemicals, inks, textile printing and dyeing, ceramics, papermaking, cosmetics and other products.剂 etc. The application of synthetic resins can make the obtained products have the characteristics of regular particles, looseness, suitable apparent specific gravity, and excellent processing performance, which basically replaces gelatin and polyvinyl alcohol as dispersants. In addition, in the construction process of the building industry, it is mainly used in mechanized construction such as wall masonry, plastering, caulking, etc.; in special decorative construction, it is used to paste ceramic tiles, marble, and plastic decorations, with high bonding strength and can reduce The amount of cement. Used as a thickener in the coating industry, it can make the coating bright and fine, without powder off, and improve the leveling performance. Used in plastering plaster, pasting plaster, caulking plaster, water-resistant putty, it can significantly reduce its water retention and adhesive strength. It can also be used in functional ceramics, metallurgy, seed coating agents, water-based inks, cosmetics, electronics, printing and dyeing, papermaking and other fields.

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