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The first step in the production of redispersible polymer powders is the production of polymer dispersions, also known as emulsions or latexes.  the water-emulsified monomers (stabilized by emulsifiers or macromolecular protective colloids) react with initiators to start emulsion polymerization.

1. Products without surface treatment (except hydroxyethyl cellulose) shall not be directly dissolved in cold water.

2. It must be slowly sifted into the mixing container. Do not add the product that has formed into lumps into the mixing container directly.

It is added directly during production. This method is the simplest and shortest time-consuming method. The specific steps are:

1. Add a certain amount of boiling water to a stirred container with high shear stress (hydroxyethyl cellulose products are soluble in cold water, so just add cold water);

2. Start the mixing at low speed, and slowly sieve the product into the mixing container;

Physical and chemical properties:
1. The appearance is white or almost white powder
2. Granularity: 100 mesh pass rate ≥ 98% 80 mesh pass rate ≥ 100%
3. Carbonization temperature: 280-300℃
4. Surface tension: 42-56dyn/cm for 2% aqueous solution

The importance of the mortar retention of hydroxypropyl methyl cellulose in the mortar is why it has high requirements for water retention. Hydroxypropyl methyl cellulose is a kind of non-ionic cellulose mixed ether. A semi-synthetic, inactive, viscoelastic polymer, often used in ophthalmology as a lubrication department, or as an excipient or excipient in oral medicine, it can be said that it is common in various kinds of commodities.

Gray calcium-based putty: A very small amount of addition can significantly improve the cohesive strength, adhesion and water resistance of the putty coating, reduce the amount of gray calcium powder, and significantly improve the phenomenon of delamination and scars during grinding. Improve the surface fineness of putty after polishing.

The water reducing agent can mainly improve the strength of the mortar. It is an admixture with water reducing and reinforcing effects without affecting the construction workability of the mortar and concrete. Polycarboxylate water reducing agent is a new type of high performance water reducing agent developed in recent years,

Into the June, the weather gradually hot, the sun also began to vicious up, walking on the road to the suburbs, roadside large golden fields of wheat, bursts of dry wind blowing over, wheat undulating rustling. Full of the ears of the spike son, as if bent waist respectful humility waiting to reap that moment,

Putty powder is a building material for decorating houses. It is used as an adhesive to improve the spreadability and prolong the operating time. It is used as a paste for tile, marble, and plastic decoration, as a paste enhancer, and can also reduce the amount of cement.