Product description：

1. Hydroxypropyl methyl cellulose (HPMC) is a non-ionic cellulose ether prepared from natural high molecular material cotton by a series of chemical processing. It is mainly used in construction industry, such as dry putty powder, putty paste, toughened putty, coating glue and thermal insulation mortar. It has good water retention effect, easy construction, good brightness, viscosity and gel time, and can be customized according to customer needs.

Four, product nature

Character: This product is a white or slightly yellow powder, and it is odorless, tasteless and non-toxic.

Water solubility and thickening ability: This product can dissolve in cold water and form transparent viscous solution.

Solubility in organic solvents: Because it contains a certain amount of hydrophobic methoxy, so this product can be dissolved in some organic solvents, but also in water and organic mixed solvents.

Salt resistance: As this product is non-ionic and non-polymeric electrolytes, therefore, it is more stable in the aqueous solution of metal salts or organic electrolytes.

Surface activity: The aqueous solution of this product has surface activity, making it have emulsification, protecting colloid and relative stability.

Thermal gelation: When heated to a certain temperature above the water solution can become opaque, precipitation, so that the solution lost viscosity. But it gradually cooled down and turned to its original solution state. The temperature of condensation and precipitation depends on the type of product, the concentration of solution and the rate of heating.

Low ash content: Because this product is non-ionic, in the preparation process can be effectively refined by hot water washing, so its ash content is very low.

PH stability: the viscosity of the aqueous solution is stable in the range of PH3.0 - 11.

Water retaining effect: because the product is hydrophilic and its aqueous solution is highly viscous. It is added to mortar, gypsum, paint and so on, and plays a role of maintaining high water retention in the products.

Shape retention: compared with other water-soluble polymers, the aqueous solution of this product has special viscoelastic properties. Its addition has the ability to improve the shape unchanged of extruded ceramic products.

Lubrication: The addition of this product can reduce friction coefficient and improve the lubricity of extruded ceramics and cement products.

Film forming: This product can produce strong, flexible, transparent lamellae with good oil resistance and ester resistance.

Five, use method

1. The product is added to the hot water (80-90 C) of 1/3-1/5 water requirement. The product is stirred and dispersed to full swelling. The remaining cold water is cooled by stirring until it is completely dissolved.

2. The surface-treated products can be dissolved directly in cold water under stirring. In order to dissolve rapidly, the products can be dissolved rapidly by adjusting the pH value of ammonia or alkaline water to 8-10.

3. Prepare the product into a high concentration mother liquor for reserve (same method). When used, add cold water and continue stirring until a homogeneous solution can be formed.

4. Because the product has good compatibility, it can be directly mixed with most of the products, such as gypsum powder, cement, lime-calcium powder, starch and so on.

Six. Packing

1, industrial grade: double layer bag inner polyethylene film bag, pearlescent film woven bag, each bag net weight of 25 kg.