Different effects of HPMC, starch ether and RDP on gypsum mortar Hydroxypropyl methylcellulose (HPMC) 1. It is stable to acids and alkalis, and its aqueous solution is very stable in the range of pH=2~12. Caustic soda and lime water do not have much impact on its performance. But alkali can speed up its dissolution. And
4. Water retaining agent Gypsum dry-mix building materials are inseparable from water-retaining agents. To improve the water retention rate of gypsum product slurry is to ensure that water can exist in gypsum slurry for a long time. In this way, a good hydration hardening effect is obtained. Improve the constructability of gypsum powder building materials,
A single admixture has limitations in improving the performance of gypsum slurry. If you want to achieve satisfactory performance of gypsum mortar and meet different application requirements. Chemical admixtures, admixtures, fillers and multiple materials are required to complement each other. Scientifically and reasonably compounded. 1. Coagulation regulator Coagulation regulators mainly divide into retarders and accelerators.