Characteristics of Instant Hydroxypropyl Methylcellulose

The instant hydroxypropyl methylcellulose ether is designed for water agent products. The surface of hydroxypropyl methylcellulose ether is treated with Glyoxal at a certain temperature and pH value. The treated hydroxypropyl methylcellulose ether only disperses in neutral cold water and does not produce swelling and viscosity, which plays a role in delaying swelling, After stirring the aqueous solution for 5-10 minutes or adjusting the solution environment (pH value) to alkaline, hydroxypropyl methylcellulose ether begins to swell and produce viscosity. This type of surface treatment is usually referred to as instant type.

The characteristics of the instant hydroxypropyl methylcellulose are as follows
1） When the instant HPMC encounters cold water, it will diffuse rapidly in cold water, but it takes time for its viscosity to rise, because in the early stage, it only diffuses in water, not dissolves in essence, and its viscosity reaches the maximum value for more than 20 minutes;
2） Instant HPMC is used in a specific industry, which can't be mixed with dry powder, or it needs to be dissolved and used, and it can't use hot water because of equipment conditions, etc

3) The quick dissolving hydroxypropyl methylcellulose can disperse quickly in water (the dispersity is 100%), dissolve quickly, and do not agglomerate. Especially in the later stage, the colloidal solution has high transparency (more than 95%) and high consistency, which solves the constraints in practical application and expands the application fields, such as the application in building glue Application in compound liquid admixtures and in daily chemical washing and other special fields.