Currently the most widely used RDP are EVA and Veova. The technology is mature and the application effect is good. In recent years vinyl acetate acrylic acid system has emerged as the focus of foreign competitive research and development, but it has not been widely used due to its immature technology, but its excellent comprehensive … Continue reading
Characteristics of nature cellulose fiber (1)Fiber reinforcement and thickening effect The nature cellulose fiber has a three-dimensional network structure with obvious cross-linking effect, as shown in picture 4.4-2. This structure can effectively adhere to the liquid structure, such as water, latex paint, asphalt and other liquids with different consistency. Its thickening depends on the length … Continue reading
1). Application in tile adhesive Based on test formula as follows- A. Portland cement (p·O, 42.5R): 37% B. Sand gradation: 61.2% C. Hydroxy propyl methyl cellulase: 0.3% D. Redispersible polymer powder: 1.5% E. cellulose fiber: 0.3% Adding cellulose fiber into different formulas of tile adhesive can significantly reduce the slide distance. That is to say cellulose fiber in ceramic tile adhesive does not reduce the workability, … Continue reading
The function of the water reducing agent is to improve the working performance of freshly mixed mortar and the fluidity of the mortar without reducing the water consumption of the cement; while maintaining a certain working performance, reduce the amount of cement and increase the strength of the mortar, under the circumstances, reduce the amount of cement per … Continue reading
Water reducing agent refers to an additive that can reduce the amount of water used for mixing under the condition that the consistency of the mortar is basically the same. Water-reducing agents are generally surfactants, and are divided into ordinary water-reducing agents, high-efficiency water-reducing agents, early strength water-reducing agents, retarding water-reducing agents, retarding high-efficiency water-reducing … Continue reading
Insulation board supporting mortar The thermal insulation board supporting mortar is an important part of the external wall insulation, mainly the thermal insulation board adhesive and protective mortar. As a supporting material for the system, the components of the external insulation system must be regarded as a whole. Therefore, adhesives, insulation panels, protective mortars, fiber … Continue reading
Gypsum plaster is widely used in dry-mixed mortar products. Whether it is hand-applied plaster or machine-applied plaster, starch ether plays a very important role. The mechanism of starch ether significantly affects the thickening of freshly mixed mortar, providing a thickening effect for plaster. Thus, plaster can quickly reach a suitable consistency during construction due to … Continue reading
After the mortar is mixed with water, the layered swelling silicate in the thixotropic lubricant can form a gel due to the presence of an aqueous medium, which improves the basic viscosity of the system. Due to the formation of the card house structure, the flow of the mortar is improved, which is represented by the … Continue reading
Thixotropic lubricant is mainly used in dry mixed mortar products to improve the construction performance of wet mortar, achieve uniform surface, increase sag resistance and the thickness of mortar… Plastering and stucco are the special building materials used for interior and exterior walls and ceilings, and the adhesives used can be cement based, gypsum based with polymer … Continue reading
The rheological additives used in cement-based tile adhesives and other systems are mainly cellulose ethers, which provide suitable consistence for construction, sag resistance of wall tiles, optimum water retention of cement, and control intervals and tile correction time. The thixotropic lubricant can be used in combination with cellulose ether thickeners to create a synergistic effect that improves the sag … Continue reading