Answer: hot water solution method: because HPMC is not dissolved in hot water, so the initial HPMC can be evenly dispersed in hot water, then quickly dissolved when cooling, two typical methods are described as follows:
1) Put the required amount of hot water in the container and heat it to about 70℃. Under the slow stirring gradually add hydroxypropyl methyl cellulose, HPMC began to float on the surface of the water, and then gradually form a slurry, the slurry cooling under the stirring.
2) Add 1/3 or 2/3 of the required amount of water into the container, and heat to 70℃, according to the method of 1), disperse HPMC, prepare hot water slurry; Then add the remaining amount of cold water to the hot slurry, stirring and cooling the mixture.
Powder mixing method: HPMC powder and a large number of other powdery material ingredients, mixing fully with a blender, then add water to dissolve, HPMC at this time can dissolve, and do not stick together, because each small corner, only a little bit of HPMC powder, water will dissolve immediately. - Putty powder and mortar production enterprises are using this method. [Hydroxypropyl methyl cellulose (HPMC) is used as thickening agent and water retaining agent in putty mortar.]

Answer:The amount of construction HPMC in practical application is subject to the climate environment, temperature, local ash calcium quality, putty powder formula to
And quality required by the customer. Generally speaking, between 4kg and 5kg. For example: Beijing greasy powder, mostly put 5 kg; Most in Guizhou are 5 kg in summer and 4.5 kg in winter; Yunnan has a smaller release,
Generally 3 kg - 4 kg and so on.

In the formulation of dry mortar in the building materials industry, the use of cellulose-based polymers is common. In fact, cellulose-based polymers are essential additives for formulations such as tile adhesives, wall fillers, ETICS/EIFS and others.

No information on the dusting potential of the additive was made available. The analysis (by sieving) of one batch of the additive8 showed that 100% of the additive had particles smaller than 420 μm.

The mechanism of action of Hydroxypropyl Methylcellulose is a result of its unique molecular structure. HPMC is a cellulose derivative with hydrophilic hydroxypropyl and methyl groups attached to the cellulose backbone. When added to a formulation, HPMC disperses in water to form a colloidal solution.

HPMC, on the other hand, is Hydroxypropyl Methylcellulose. It is produced by alkali treatment of refined cotton and further etherified using epichlorohydrin and chloromethane as etherifying agents, resulting in a nonionic mixed ether of cellulose. The degree of substitution is typically between 1.2 and 2.0, and its properties vary based on the ratio of methoxy and hydroxypropoxy groups.

Particle size; 100 mesh pass rate is more than 98.5%; 80 mesh pass rate is 100%. Particle sizes of special specifications ranged from 40 to 60 meshes.

2)The viscosity of Hydroxypropyl Methylcellulose is influenced by its molecular weight, with higher molecular weight leading to higher viscosity. Temperature also affects its viscosity, with viscosity decreasing as temperature rises. However, the impact of temperature on viscosity is lower compared to Methyl Cellulose. Its solution is stable when stored at room temperature.

We attended the BIG FIVE exhibition hold in DUBAI during Dec. 5-8 th of 2022. Along with our chairman of the company, we met a lot of new and old customers. Most of them are from construction and detergent product production field. We investigated the market and compared the quality from the market, and found our goal and made our plan for the next year. To serve better to our buyers.