02. Partikelgréisst; the pass rate of 100 mesh is greater than 98.5%; the pass rate of 80 mesh is greater than 100%.
Different, the solubility changes with the viscosity, the lower the viscosity, the greater the solubility, the performance of different specifications of hydroxypropyl methylcellulose (HPMC) has certain differences, the dissolution of hydroxypropyl methylcellulose (HPMC) in water is not affected PH value effect .
1. Hot water method: Since hydroxypropyl methylcellulose (HPMC) does not dissolve in hot water, the initial stage of hydroxypropyl methylcellulose (HPMC) can be evenly dispersed in hot water, and then when it is cooled, three A typical method is described as folgendermoossen:
1). Put the required amount of hot water into the container and heat it to about 70°C. Gradually add hydroxypropyl methylcellulose (HPMC) under slow stirring, the hydroxypropyl methylcellulose (HPMC) starts to float on the surface of the water, and then gradually forms a slurry, cool the slurry under stirring .
3). Füügt 1/3 oder 2/3 vun der erfuerderter Quantitéit Waasser an de Container an erhëtzt et op 70°C. According to the method of 1), disperse hydroxypropyl methylcellulose (HPMC) to prepare hot water slurry; The remaining amount of cold or ice water is then added to the hot water slurry and the mixture is cooled after stirring.
1). Klebstoff a Kalkmëttel fir Gips-baséiert Klebeband;
2). Bindung vun Zement-baséiert Zillen, Plättercher a Fundamenter;
3). Stucco baséiert op Gipsplack;
4). Zement-baséiert strukturell Putz;
5). An der Formel vu Lack a Lack Remover.
Post Zäit: Mee-24-2023