How much is a bag of redispersible latex powder products

The names of the three types of products mentioned above are all commonly referred to in the external insulation industry, and do not specifically refer to a certain product.

Redispersible latex powder: It is prepared by spraying powder with emulsion and drying processing, the solid content of emulsion is generally about 53%, and the rest is basically water. Generally, latex powder ** floats with the emulsion, about 400 or so a bag (25kg), because the composition of the emulsion is also diverse, what two-way copolymerization, ternary copolymerization, multi-copolymerization, ethylene grafting and other technologies The properties of the emulsion are also different, plus the additives used in the production process, the composition of natural latex powder is also very different.

**There is also a small range of floating.

RedispersibleSexualityLatex powder: it is more complicated, generally modified dispersible latex powder (the product mentioned in the first paragraph of this paragraph), because the universal product of redispersible latex powder can be applied to many different fields, so in a certain field, some characteristics of redispersible latex powder are "redundant", such as bonded wood, then his "flexibility" is useless. Therefore, in the field of external thermal insulation, according to latex powder, people have developed a lot of targeted products, which are generally about 300 yuan a bag (25kg) lower than redispersible latex powder

Redispersible rubber powder: not necessarily emulsion or not all emulsion sprayed rubber powder products, China's foreign insulation industry has developed for nearly 30 years, and the applied products have also developed from simple import learning to independent research and development. The application of rubber powder products in external thermal insulation is nothing more than to ensure the system stability of the insulation layer, so there are many outstanding "MPA" products on the market, and this kind of additives with excellent "bonding" performance have one thing in common, that is, they are "fine" enough.

The purpose is to be better dispersed in the mortar due to the small amount of addition, so the name "redispersible rubber powder" is born. This kind of rubber powder is about 250 yuan a bag.

The brands are different, ** are different, and the general ones are around 300.

Redispersible latex powder is a product based on the theory of film formation, and on the basis of the theory, there is a concept called "minimum film formation", the minimum film formation amount is the minimum content of simple film-forming substances, this value is about 2%, in other words, 100% purity of redispersible polymer powder to add 20 kg per ton to form a continuous film.

Because the performance required by different products is different, therefore, based on the theory of film formation, there are also further requirements, such as putty products, in addition to the need to form a complete film, but also need to have enough thickness to show intentional flexibility, then the addition amount should be higher than 20 kg per ton, with the improvement of performance, the amount of addition will also increase.

The role of dispersed latex powder in wet mortar

Enhance the water retention of mortar;

Extend mortar opening hours;

improve mortar cohesion;

Increase the thixotropy and sag resistance of mortar;

improve mortar flowability;

Improve workability.

The role of dispersible polymer powder in the curing of mortar:

Enhance bending strength;

improve tensile strength;

improve variability;

Reduction of elastic modulus;

Improve cohesive strength;

the depth of decarbonization;

Increase the density of the material;

Enhance abrasion strength;

Reduced material water absorption;

This makes the material extremely hydrophobic.

Summary. The feeding of redispersible latex powder should not be put in at one time, and the amount should be divided into batches to find the appropriate amount. When polypropylene fibers need to be added, they should be dispersed in cement first, because the fine particles of cement can eliminate the static electricity of the fibers, so that the polypropylene fibers can be dispersed.

Stir and mix evenly, but the mixing time should not be too long, 15 minutes is appropriate, and it is easy to precipitate and stratify the sand and cement when stirring for a long time. It is necessary to adjust the amount of additives and add HPMC in an appropriate amount according to the change of seasons to avoid additives or cement agglomeration due to moisture.

The feeding of redispersible latex powder should not be put in at one time, and the amount should be divided into batches to find the appropriate amount. When polypropylene fibers need to be added, they should be dispersed in cement first, because the fine particles of cement can eliminate the static electricity of the fibers, so that the polypropylene fibers can be dispersed. Stir and mix evenly, but the mixing time should not be too long, 15 minutes is appropriate, and it is easy to precipitate and stratify the sand and cement when stirring for a long time.

It is necessary to adjust the dosage of additives according to the change of seasons, and add HPMC in an appropriate amount to avoid additives or cement seepage and agglomeration. Sidelines shouted late.

It is strictly forbidden to mix with acidic substances and stack and use reeds. 5 The following is forbidden to be used in construction, and low-temperature construction will create the biggest engineering quality problem, resulting in the non-bonding of the plastering mortar and the insulation board, which is the engineering quality problem that does not have a remedial plan for Jian Haofeng in the later stage.

The redispersible latex powder itself is non-sticky, and the redispersible latex powder is a latex powder in which the emulsion is spray-dried. It is characterized by the fact that it can form a stable dispersion when stirred with water, and its properties are similar to those of the original emulsion. After mixing and re-emulsifying the dispersible polymer powder with water, it has similar properties to the original emulsion, that is, after the water evaporates, it will form a film, which has high flexibility and very good adhesion to various substrates.

Function: It can enhance the water retention of the material and prevent the cement mortar from hardening, drying and cracking too quickly; Increase the plasticity of the mortar and improve the workability of the construction. If you want to do the experiment, you should do the mortar in proportion and then test it to see its dispersion, film-forming, and flexibility Including the pull-out test, whether the original strength is qualified Generally speaking, the experimental results can be obtained after 10 days.

Beijing Dibos Technology specializes in the production of redispersible latex powder, the production line is the introduction of advanced powder spraying technology from Germany, the use of the United States Celanese VAE emulsion, so that the production of our company dispersible latex powder cost-effective. This product is added to various gel materials and mortars, and a variety of properties will be excellently improved, which can improve its adhesion, cohesion, reduce elastic modulus, improve flexural strength, enhance bendability, improve impact resistance and abrasion resistance, reduce water absorption, improve water retention and water resistance, improve and improve workability, etc.

In the modern construction industry. Dry-mix mortar has been widely used in China. Due to the diversification of modern building materials, dry-mix mortars meet increasingly high requirements for various technical properties.

An important way to improve the quality of construction is to add stable dry mortar additives to building materials. The company's products are imported with the quality of imported, domestic products hand in hand with you, out of the low-cost, high-quality road.

1. Dissolution method, take a certain amount of redispersible latex powder and dissolve it in 5 times the mass of water, stir it fully and let it stand for 5 minutes before observation. In principle, the less repermissible matter that settles to the bottom layer, the better the quality of the dispersible polymer powder. This method is simple and easy.

2. In the film-forming method, take a certain quality of redispersible latex powder, dissolve it in 2 times the water, stir it evenly and let it stand for 2 minutes, stir it again, pour the solution on a piece of flat clean glass, and place the glass in a ventilated shade. Allow to dry sufficiently and peel off. Observe the peeled off polymer film.

High transparency***. Then carry out a moderate pull, good elasticity ***. Then cut the film into strips, soak it in water, and observe it after 1 day, and there is less *** dissolved by water.

This approach is more objective.

3. Ash method, take a certain amount of redispersible latex powder, weigh it and place it in a metal container, raise the temperature to about 500 degrees, and after 500 degrees of high temperature cautery, cool it to room temperature, and weigh it again. Lightweight ***.

Shandong Chenbang redispersible latex powder products and function explanation.

Answer: Redispersible latex powder products are water-soluble dispersible powders, which are divided into ethylene vinyl acetate copolymer, vinyl acetate tertiary ethylene carbonate copolymer, acrylic acid copolymer, etc., and are powder binders made after spray drying, with polyvinyl alcohol as a protective colloid.

These powders can be quickly dispersed into emulsions after contact with water, and they are used in a wide range of applications due to their high adhesion capacity and unique properties such as water resistance, workability and thermal insulation.

6. Give the mortar excellent alkali resistance.

Dispersible polymer powder is a building material additive. If the material is not available in a construction project, it is a big problem for many construction industries. Since the substance is a synthetic latex powder, it will have certain chemical properties when used.

However, the properties of these chemicals are relatively stable, that is, they do not react with their surroundings under any circumstances.

Add 8-10 kg per ton for dry mortar and 5 kg per ton for exterior putty

I guess what you're talking about is how much you can add to pass the national standard test.

Now there are too many rubber powders on the market, and about 12-20kg needs to be added to those imported from abroad.

The domestic ones generally need about 20kg-30kg.

The formula of each mortar is different, the amount of latex powder added is also different, and you must also indicate which brand of latex powder you use. Now there are many brands of latex powder in China, the quality is uneven, and the amount of addition is definitely not the same, so you need to explain the brand of rubber powder you use and what kind of mortar you use it for.

You make different products, the amount of addition is also different, what kind of mortar do you make? The national testing standards are not the same as those on the construction site, please tell us the details.