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Method one, ash method. Take a certain amount of re-dispersible latex powder, weigh it, place it in a metal container, heat up to about 500 degrees, after burning at 500 degrees high temperature, cool to normal temperature, and weigh again. Light weight and good quality.

Generally speaking, the higher the viscosity, the better the water retention effect of gypsum mortar. However, the higher the viscosity, the higher the molecular weight of the cellulose ether, and the corresponding reduction in its solubility, which has a negative impact on the strength and construction performance of the mortar. The higher the viscosity, the more obvious the thickening effect on the mortar, but it is not proportional.

1. The pure hydroxypropyl methylcellulose HPMC has a fluffy visual state and a small bulk density in the range of 0.3–0.4/ml; the adulterated hydroxypropyl methylcellulose HPMC has better fluidity and feel more Shen, there is a clear difference from the authentic appearance.

Hydroxypropyl methylcellulose is a cellulose ether derivative, and its production currently has two process routes: horizontal kettle dry method and vertical kettle solvent method;

It is necessary to add redispersible latex powder to dry cement mortar. This is because redispersible latex powder mainly has the following six advantages. The following is the introduction for you.

Safety and environmental protection exterior insulation materials are the foundation of building construction to ensure disaster prevention and mitigation, energy saving and consumption reduction. With the popularization of construction safety and fire protection knowledge from all walks of life,

In recent years, the demand for redispersible latex powder in Europe and North America has been growing slowly due to market saturation. On the contrary, with the gradual implementation of China’s building energy saving policy and the vigorous promotion of building dry-mixed mortar,

Speaking of hydroxypropyl methylcellulose, perhaps the general public do not know what it is, but for the construction industry, most of the first-line construction workers are quite clear.

Daily chemical grade hydroxypropyl methyl cellulose is a synthetic high molecular polymer prepared by chemical modification with natural cellulose as raw material. Cellulose ether is a derivative of natural cellulose. The production of cellulose ether is different from synthetic polymers.