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November 29, 2021by admin0

1. Hydroxypropyl Methyl Cellulose HPMC uniformity

Uniform reaction of HPMC, methoxy, hydroxypropoxy uniform distribution, high water retention.

2. Cellulose ether HPMC Thermal gelation temperature

High thermal gel temperature, high water retention; on the other hand, low water retention.

3. Cellulose ether HPMC viscosity

When HPMC viscosity increase, the water retention rate also increased; when the viscosity reaches a certain level, the rate of increase in water retention tends to be flat.

4. Dosage of China HPMC
The more amount of cellulose ether HPMC added, the higher is the water retention, and will get the better water retention. In the range of 0.25-0.6%, the water retention rate increased rapidly with the increase of the amount of adding quantity; when the amount of addition was further increased, the increase of water retention rate will slow down.

under high temperature,Hydroxypropyl Methyl cellulose water retention is an important indicator to the HPMC quality . Air temperature and wind pressure and other factors will affect the rate of water retention of cement mortar and gypsum-based products. So in different seasons, adding the same amount of HPMC product water retention effect is different. In the concrete construction, the amount of HPMC added can be used to adjust the water retention effect of the slurry. Good HPMC products can effectively solve the problem of water retention at high temperatures. In the hot season, especially in the hot and dry areas and  the thin layer of construction,  need high-quality HPMC  to improve water retention. High-quality HPMC, its uniformity is very good, its methoxy and hydroxypropoxyl groups along the cellulose molecular chain uniformly distributed, it can increase the hydroxyl and ether bond oxygen atoms and water to form hydrogen Key ability to make the free water into a combination of water, which effectively control the evaporation of water caused by hot weather, to achieve high water retention



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