The difference between hydroxypropyl methylcellulose fast-dissolving type and slow-dissolving type

Hydroxypropyl methylcellulose HPMC cold water (instant type): It is surface treated with glyoxal and quickly dispersed in cold water, but it is not really dissolved, the viscosity comes up, and the aqueous solution becomes clear and transparent. Really dissolved.

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The difference between hydroxypropyl starch ether and cellulose ether hpmc

1. Air-entraining. Hydroxypropyl methyl cellulose ether hpmc has strong air-entraining properties, while hydroxypropyl starch ether has no air-entraining properties.

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How to detect the viscosity of hydroxypropyl methyl cellulose

Extract 2.0g of hydroxypropyl methylcellulose HPMC sample dried to constant weight into a beaker, add 98ml of 80~90℃ hot water to make a 2.0% (g/g) solution, stir for about 20min, then put in ice Cool in the bath for 50min, continue to mix during the cooling process, remove air bubbles,

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The role of hydroxypropyl methylcellulose in wet-mixed mortar

The wet-mixed mortar is cement, fine aggregate, additives and water, and various components are determined according to the performance. After measuring and mixing in a certain proportion at the mixing station, the mixture is transported to the place of use in a special container for storage, and the wet mix is ​​used within the specified time.

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The influence of redispersible latex powder on the strength of putty powder

1. The redispersible latex powder affects the strength of the putty powder. Adding the redispersible latex powder to the putty powder and mortar can increase its strength, and it has a great help in improving the hardness.

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Hydroxypropyl methylcellulose delays cement hydration

Adding hydroxypropyl methylcellulose to cement can slow down the hydration of cement. So what do you know about its principle? Let’s take a look at hydroxypropyl methyl cellulose to delay the hydration of cement. principle.

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Composition and scope of redispersible powder

The redispersible latex powder is usually white powder, and the redispersible latex powder is usually white powder. But there are a few other colors. Ingredients include: polymer resin: located in the core part of the rubber powder particles, and is also an important component of the redispersible latex powder to play a role.

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What are the main technical indicators of hydroxypropyl methyl cellulose

Hydroxypropyl content and viscosity, most users care about these two indicators. The higher the hydroxypropyl content, the better the water retention. Viscosity is higher, water retention is relatively (rather than absolute) is better, and viscosity is higher, it is better used in cement mortar.

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How much viscosity of hydroxypropyl methylcellulose used in putty powder

The viscosity of hydroxypropyl methylcellulose HPMC, which we usually say, refers to the result of its 2% aqueous solution at a temperature of 20 degrees Celsius. The viscosity of hydroxypropyl methyl cellulose is mainly divided into four categories: low viscosity, medium and low viscosity, medium viscosity and high viscosity. Different viscosities have different uses.

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