At the same time, it can reasonably improve the compressive strength and shear strength of HPMC hydroxypropyl methyl cellulose, further improve the actual effect of engineering construction, improve efficiency. HPMC hydroxypropyl methyl cellulose can improve the adhesive force of putty powder, reduce the suspension condition, to ensure the success of engineering construction. Hydroxypropyl methyl cellulose can increase the running time and deal with the problem of hollow and insufficient original compressive strength in the engineering construction process.
The high water-locking performance of engineering construction mortar and putty mortar can make concrete sufficiently mixed, and can obviously improve the bonding compressive strength of mortar. At the same time, the compressive strength and shear strength of hydroxypropyl methyl cellulose can be reasonably improved to further improve the actual effect of engineering construction and improve efficiency.
Moisture resistance son, HPMC hydroxypropyl methyl cellulose, the effect of hydroxypropyl methyl cellulose in the putty powder, to prevent the drying and drying caused by too fast water outflow. Hydroxypropyl methyl cellulose can improve the adhesive force of putty powder, reduce the suspension condition, ensure the success of engineering construction.
HPMC hydroxypropyl methyl cellulose key with locking water, thickening, wetting and other effects, thickening, wetting and other effects have a certain initial setting effect. Hydroxypropyl methyl cellulose can increase the running time and deal with the problem of hollow and insufficient original compressive strength in the engineering construction process.
HPMC hydroxypropyl methyl cellulose in wall insulation mortar plays a key role in bonding effect, and enhances the compressive strength of raw materials. Mortar is very easy to cover, improve efficiency, with the basic function of anti-flow suspension and practical effect. The water-locking performance of hydroxypropyl methyl cellulose can increase the running time of mortar, improve the resistance to consolidation and anchoring, improve the surface quality, and improve the compressive strength of bonding.
The highly water-soluble tile binder removes the need for pre-soaked or wet floor tiles and foundations, further improving the bonding compressive strength. The slurry engineering construction time is long, meticulous, symmetrical, convenient engineering construction, with good moisture resistance.
In the field of natural latex building coatings, hydroxypropyl methyl cellulose can be used as film forming agent, tackifier, demulsifier and thickener, so that the plastic film has better wear resistance, fluidity and adhesion. The pH used to improve interfacial tension is well defined, and the mixture with organic solution is good and has good smoothness.
Economic development Architectural coatings have good strength, excellent water permeability and good aging resistance. The real stone coating formula design scheme is very key. A ton of high quality lacquer is composed of about 300KG pure styrene-acrylic emulsion, 650KG pure natural rock aqueous solution and other components. High quality real lacquers are characterized by many moisturizing lotions. When the liquid composition of the emulsion is 50%, the volume of 300KG moisturizing emulsion after drying is about 150 litres, and the volume of 650KG heavy sand is about 228 litres. That is to say, in this case, the real stone paint (color paste concentration value) is 60%. Because of the large particle size and irregular appearance of fine sand, under the premise of a certain particle size analysis, dry exterior wall coating is likely to be around the CPVC concentration value).
For viscosifier, if appropriate cellulose viscosity is selected, exterior wall coating can produce more detailed, more concentrated paint layer, in order to achieve the three provisions of exterior wall coating. Three regulations for building coatings. In fact, the application of a lot of economic and practical stone qi, a ton of secret recipe solvent 100-160kg, 750kg colored plate sand, 20kg (including coating additives, pesticides, fungicides, adhesives, etc.), the rest of the water and skin care products. This kind of really true stone paint PVC generally in the middle of 75%? Between 85%, in the operation process is dried, really real stone paint coating is difficult to establish a detailed and tight paint layer. Therefore, how to make full use of the more limited moisturizing emulsion secret recipe effect, so that the coating as far as possible symmetrical.
Real stone building coatings have the characteristics of low viscosity (high molecular weight). Because of the increase in the price of cellulose commodities, the viscosity of applied cellulose is changed from 30000 to 50000,80000,100000, even if it is increased by 200000, the goal is to reduce the total amount of cellulose from methyl cellulose (HEC) to hydroxyl acrylic cellulose (HPMC); The application of methyl methyl cellulose HPMC will significantly reduce the water repellency of real stone building paint, and then improve the viscosity of cellulose (relative molecular mass) will be the real stone building paint commodity performance conclusion? The answer is that the performance of the stone paint layer will get worse and worse!
HPMC can be divided into instant and heat soluble types. When the cold water rapidly disperses and subsides in the water, HPMC can be divided into instant and heat soluble types. At this time, liquid does not have viscosity, because HPMC is only dispersed in water, and there is no real sense of melting. After about 2min, the viscosity of liquid expands slowly, producing a transparent viscous colloid solution. When hot organic solvent commodities accumulate in cold water, they can disperse rapidly in hot water and dissipate in hot water. When the ambient temperature is reduced to a certain degree of heat, the viscosity will gradually occur until a fully transparent viscous colloidal solution is produced. The type of thermal organic solvent is only used in interior wall putty powder and mortar. In liquid superglue and coatings, there is a population that cannot be applied. The quick – solubility type has the general application category. Can be used as interior wall putty powder and mortar, and its liquid superglue and coating. There is no taboo.
Hot water melting: because HPMC in hot water does not melt, so HPMC in the original link can be evenly dispersed in hot water, and then fast melting when cooling. The two classical ways are described as follows:
1) Put the hot water you need into a vessel and heat it to about 70℃. Gradually mix, slowly add hydroxypropyl methyl cellulose, gradually HPMC floating on the river, then slowly produce sludge refrigeration sludge in the mixing.
2) Add 1/3 or 2/3 of the water into the vessel, heat it to 70℃, heat it to 70℃ to disperse HPMC, and prepare hot water sludge; The remaining cold water is then added to the hot sludge and mixed with the post-cooling mixture.
Powder mixing method: HPMC powder with a blender and many other powder chemical ingredients sufficient mix, then add water to dissolve. At this time, HPMC can be dissolved in the case of no agglomeration, because each small corner only a little HPMC powder, when the water will immediately dissolve — this kind of way is just the application of the inner wall putty powder and mortar manufacturers. [HPMC] as the tackifying agent and moisturizing agent in the putty mortar of the inner wall.
This is a typical hydroxypropyl methyl cellulose (HMPC) artificial tear, which is close to the viscoelastic substance (mainly mucin) in tears. It adheres to the surface of the eye through the adsorption of polymer, and simulates the role of conjunctival mucin, so as to improve the reduced state of mucin in the eye and increase the wetting effect of the cornea.
In putty powder, thickening, water retention and construction of three functions. Thickening, cellulose can be thickened to suspension, so that the solution remains uniform up and down the role of anti-flow hanging. Water retention: make putty powder dry slowly, auxiliary gray calcium in the action of water reaction. Construction: cellulose lubrication, can make putty powder has good construction. HPMC does not participate in any chemical reactions, but only plays a supporting role.
Texture paint is more flexible in the choice of color, and can achieve the ideal artistic design effect, and the real stone paint in the pursuit of natural lifelike, is better than texture paint, each has its own strengths. Texture paint and lacquer in the production process, in order to permanently maintain the original color, generally in the last process, we have to use varnish (light oil) to spray to protect their artistic effect or stone effect.
Lacquer, texture paint is a kind of paint, mainly used for wall decoration. The natural diatom mud official website summarizes some differences between texture paint and lacquer, texture paint and lacquer distinguish method, the following specific to see the difference between lacquer and texture paint.
High quality latex high prices, manufacturers in order to save costs, just add a small amount of the proportion of emulsion, after making really stone paint dry film loose, not enough density, paint film is bibulous rate is bigger, compressive strength is reduced, once encounter rainy weather for a long period of time, the rain will penetrate into the paint film, really stone paint white.
Some manufacturers in the manufacture of lacquer, often add a lot of carboxymethyl cellulose, hydroxyethyl cellulose as a thickener, these substances are water-soluble or hydrophilic, coating film left in the layer, greatly reduce the water resistance of the coating.
Post time: Jun-09-2022