Hydroxypropyl starch ether is used in mortar

Starch ether is a commonly used mortar additive. The application of starch ether in mortar can improve the performance and process of mortar, improve the bonding strength, filling and water resistance of mortar, and ensure the quality and service life of mortar. 

Mainly used in the following aspects:

1. Thickener: Starch ether can be used as a thickener for mortar to increase the viscosity and consistency of the mortar, enhance its coating and filling properties, reduce the number of coatings and coating thickness, thereby improving construction efficiency.

2. Water-retaining agent: Starch ether can be used as a water-retaining agent for mortar, which can slow down the drying speed of the mortar, improve the ductility and filling properties of the mortar, and avoid cracking problems caused by premature drying of the mortar during the construction process.

3. Wall-protecting agent: Starch ether can be used as a wall-protecting agent for mortar to improve the drying shrinkage and crack resistance of the mortar and reduce the cracking and shedding problems of the mortar during the drying process.

4. Hydration control agent: Starch ether can be used as a hydration control agent for mortar to adjust the hydration speed and reaction degree of the mortar, and improve the water resistance and bonding strength of the mortar.

5. Stabilizer: Starch ether can be used as a stabilizer for mortar to improve the stability and durability of mortar and avoid problems such as delamination and agglomeration of mortar during storage and use.

The use of starch ether in mortar mainly has the following application requirements and advantages:

Application requirements:

1. Good thickening effect: As a thickening agent in mortar, starch ether needs to have a good thickening effect to increase the viscosity and consistency of the mortar and enhance its coating and filling properties.

2. Good dry shrinkage resistance: As a wall protecting agent for mortar, starch ether needs to have good dry shrinkage resistance to avoid problems such as cracking and delamination of the mortar after drying.

3. Good hydration control performance: Starch ether can be used as a hydration control agent for mortar. It needs to have good hydration control performance to adjust the hydration speed and reaction degree of the mortar.

Advantage:

1. Enhance coating and filling properties: Starch ether can increase the viscosity and consistency of mortar, enhance its coating and filling properties, reduce the number of coatings and coating thickness, thereby improving construction efficiency.

2. Improve anti-cracking performance: Starch ether can improve the anti-drying shrinkage and anti-cracking performance of mortar, and reduce the cracking and delamination problems of mortar after drying.

3. Improve water resistance: Starch ether can improve the water resistance of mortar and prevent the mortar from absorbing water, swelling and deformation in a humid environment.

4. Improve quality stability: Starch ether can improve the stability and durability of mortar, improve the quality stability of mortar, thereby improving the quality and service life of mortar.

5. Environmental protection and safety: Starch ether is a natural and non-toxic material that will not cause pollution or harm to the environment and human body, and has good environmental protection and safety.