What is the choice of HPMC viscosity when producing putty powder dry mortar?
What is the choice of HPMC viscosity when producing putty powder dry mortar? Methylcellulose MC and hydroxypropylmethylcellulose (HPMC) have stable chemical properties. mildew resistance and water retention, and are not affected by pH changes. The viscosity is inversely proportional to the bond strength. The higher the viscosity, the smaller the strength. In the comparison, take […]
The quality of cellulose ether determines the quality of the dry mortar
The most basic material is cellulose, a natural polymer compound.The nature of the cellulose ether depends on the type, amount and distribution of the substituents. According to the type of substituents on the molecular chain, it can be divided into monoether and mixed ether. The MC we usually use is monoether, and HPMC is mixed […]