We often hear that there are 30,000 units, 80,000 units, 100,000 or even 200,000 units of cellulose ether, what is their role and what is the difference?
1. There are two main functions of cellulose ether: water retention and thickening.
2. The units of measurement are different, what are the differences?
Water retention. Most brands, after the viscosity of cellulose exceeds 100,000, the water retention performance is not obvious with the increase of viscosity, and the difference between 50,000 units of some good brands is not big, and the water retention rate has a special detection method in the JGJ T70-09 standard.
Thickening. Generally speaking, when the effective content is normal, the unit is also larger, and the thickening performance is better. In other words, the viscosity is high, the water demand is large, and the water retention rate does not change much.
3. Many companies are differentiated in proportion, that is, different mortars, the specifications of cellulose ether are different, but for small factories will increase the costGenerally, 100,000 units is the most used.
4. The current situation in China, the calibration of large unit cellulose ether is generally inaccurate, 200,000 viscosity, generally about 150,000. Only 10-120,000 are marked with 150,000.
5. Usually 200,000 viscosity is used for bonding mortar, there are also 100,000 for self-leveling, 100,000 for self-leveling, and 80,000 for plastering, of course, it is mainly determined by the quality of water retention performance, we do not recommend customers to use high viscosity, such as 200,000 units, the higher the viscosity of cellulose ether, the more unstable, and the more fakes, some customers of genuine 20w reflect that it is too sticky, and the construction is not very good.
6. The water retention of cellulose ether in the mortar is different from the water retention of the cellulose ether in the experiment, even if the water retention of the cellulose ether itself is good, it does not mean that the effect in the mortar is necessarily good, mainly because of the performance of the remaining additives in the formula, the number of additives, and the stirring effect of the dry mortar equipment are determined, and it is best to take it to the wall to see the effect, which is the truth!Hydroxypropyl methylcellulose ether manufacturer