Water retention is an important property of Hydroxypropyl Methylcellulose HPMC and is also a property of many wet-mixed mortar manufacturers in China. Factors affecting the water retention effect of wet-mixed mortar include the amount of HPMC added, the viscosity of HPMC, the fineness of the particles, and the temperature of the use environment.

The important role of Hydroxypropyl Methylcellulose HPMC in wet-mixed mortar is mainly manifested in three aspects: first, excellent water retention performance, second, the effect on the consistency and thixotropy of wet-mixed mortar, and third, the interaction with cement. The water retention effect of cellulose ether depends on the water absorption rate of the base layer, the composition of the mortar, the layer thickness of the mortar, the water demand of the mortar, and the setting time of the setting material. The higher the transparency of Hydroxypropyl Methylcellulose, the better the water retention.

Factors affecting the water retention of wet-mixed mortar include cellulose ether viscosity, addition amount, particle fineness, and use temperature. The higher the viscosity of cellulose ether, the better the water retention. Viscosity is an important parameter of HPMC performance. For the same product, the viscosity results measured by different methods vary greatly, and some are even twice the difference. Therefore, when comparing viscosity, it must be carried out between the same test methods, including temperature, rotor, etc. Generally speaking, the higher the viscosity, the better the water retention effect. However, the higher the viscosity, the higher the molecular weight of HPMC, and its solubility will also decrease accordingly, which has a negative impact on the strength and construction performance of the mortar. The higher the viscosity, the more obvious the thickening effect of the mortar, but it is not proportional. The higher the viscosity, the higher the viscosity of the wet mortar, and it will show sticky knife and high adhesion to the substrate when applied. However, it is not helpful to increase the structural strength of the wet mortar itself. When it is carried out in construction, the anti-sagging performance is not obvious. On the contrary, some low-viscosity but modified hydroxypropyl methylcellulose has excellent performance in improving the structural strength of wet mortar.

The more cellulose ether is added to the wet-mixed mortar, the better the water retention, and the higher the viscosity, the better the water retention. Fineness is also an important performance indicator of hydroxypropyl methylcellulose. The fineness of hydroxypropyl methylcellulose also has a certain effect on its water retention. Generally speaking, for hydroxypropyl methylcellulose with the same viscosity and different fineness, the finer the fineness, the smaller the fineness. The better the water retention effect.

In wet mixed mortar, the addition amount of cellulose ether HPMC is very low, but it can significantly improve the construction performance of wet mixed mortar, which is the main influence on the construction performance of mortar. The correct selection of hydroxypropyl methylcellulose has a great influence on the performance of wet mixed mortar.

Hebei Haoshuo Chemical Co., Ltd. has been specializing in the production of HPMC for sixteen years. For different products, we have developed HPMC with different viscosities and passed the ISO9001-2015 international quality system certification. The product quality has reached the international advanced level, and the variety and quality can meet the needs of domestic and foreign merchants. Now the company's daily production volume is as high as 200 tons. Through more than ten years of unremitting efforts and continuous development, the company has become a well-known cellulose ether manufacturer at home and abroad. The company's products have gained a good reputation at home and abroad with excellent quality and service. They have been exported to more than 20 countries and regions, and are highly praised and trusted by domestic and foreign users.

The company's strong economic strength and abundant human resources have laid a solid foundation for the company's long-term development. Excellent quality, cost-effective price and considerate service are the goals pursued by our company. We are willing to sincerely unite with customers at home and abroad, work together, keep pace with the times, cooperate for mutual benefit and create brilliance together!