The Role of Starch Ether in the Mortar
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For example, in the construction of tile adhesive, putty, and plastering mortar, especially now that mechanical spraying requires high fluidity, for example, it is imperative in a gypsum-based mortar (machine sprayed gypsum needs high fluidity but will cause severe sagging. Starch ether can make up for this defect).
Liquidity and sag resistance are often contradictory, and the increase in fluidity will bring about a decline in sag resistance. The mortar with rheological properties can well solve the contradiction that when an external force is applied, the viscosity will decrease, and the workability and pumpability will be enhanced. When the external force is withdrawn, the viscosity will increase and improve the sag resistance.
For the current trend of increasing tile area, adding starch ether can improve the tile adhesive slip resistance.
It can meet the requirements of special tile adhesives for tile adhesives with extended opening hours (Class E, extend from 20min to 30min to reach 0.5MPa).
Starch ether can make the surface of gypsum-based and cement mortar smooth, easy to apply, and has an excellent decorative effect. It is significant for plastering mortars and thin-layer decorative mortars such as putty.
The Mechanism of Action of Starch Ether
When starch ether is dissolved in water, it will be evenly dispersed in the cement mortar system. Because starch ether molecules have a network structure and are negatively charged, they will adsorb positively charged cement particles. As a transition bridge, the cement can be connected to give the slurry a more considerable yield value, improving the anti-sagging or anti-slip effect.
HPS Main application
If you are looking for more details, kindly visit hydroxypropyl starch ether factory.
1.food industry, used as thickener, suspending agent and adhesive.
2.in the paper industry, it is used as the internal and surface sizing of paper to make the printing ink bright and uniform, the glue film smooth, reduce the ink consumption, and have a certain roughening ability.
3.in the textile industry, it is used as warp size to improve the abrasion resistance and weaving efficiency during weaving. Hydroxypropyl starch with high degree of substitution can be used as printing paste.
4.pharmaceutical industry, used as tablet disintegrating agent and plasma increaser.
5.oil drilling, stabilizing well wall, improving borehole conditions, anti sloughing, flocculating drilling cuttings, etc.
6.daily chemical industry, used as adhesive, suspending agent and thickener.
7.in the food industry, it is used as adhesive, thickener and suspending agent to increase stability.
8.building materials industry, all kinds of (cement, gypsum, lime calcium based) internal and external wall putty; Various finishing mortar plastering mortar; All kinds of gypsum, ceramics and porcelain products are used as molding adhesives with low ash and good viscosity; It has good thickening and stability, and plays the role of suspension and emulsification in aqueous solution.
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