Views: 0 Author: Site Editor Publish Time: 2025-12-18 Origin: Site
Our core product, HPMC (hydroxypropyl methylcellulose), is a building chemical that can provide you with higher quality products, and we can also customize different viscosities according to your needs. Shijiazhuang Qingquan Cellulose Co., Ltd. is a cellulose manufacturer from China.
What factors affect the viscosity of hydroxypropyl methylcellulose? The main factors are as follows:
1. The higher the degree of polymerization of the cellulose ether in hydroxypropyl methylcellulose, the higher its molecular weight, resulting in higher viscosity of its aqueous solution.
2. If the content or concentration of the cellulose ether is higher, the viscosity of its aqueous solution will also be higher. However, it is important to choose an appropriate dosage during use, mainly to avoid excessive dosage affecting the workability of mortar and concrete.
3. Like most liquids, the viscosity of hydroxypropyl methylcellulose ether solutions decreases with increasing temperature. The higher the concentration of the cellulose ether, the greater the effect of temperature.
4. Cellulose ether solutions are usually pseudoplastic fluids, exhibiting shear-thinning properties. The higher the shear rate, the lower the viscosity.
In summary, the viscosity of the mortar decreases due to external forces, which is beneficial for the troweling operation of the mortar, allowing the mortar to have both good adhesion and workability. However, if the concentration of the cellulose ether solution is low and the viscosity is low, it will exhibit the characteristics of a Newtonian fluid. As the concentration increases, the solution will gradually exhibit the characteristics of a pseudoplastic fluid, and the higher the concentration, the more pronounced the pseudoplasticity.
