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How To Dissolve HPMC(Hydroxypropyl Methylcellulose) Correctly?

How To Dissolve HPMC(Hydroxypropyl Methylcellulose) Correctly?

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  • Time of issue:2021-07-26
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(Summary description)HPMC can be divided into instantaneous type (surface treatment) and hot melt type (non-surface treatment). The instant product disperses rapidly in cold water and disappears in the water.

How To Dissolve HPMC(Hydroxypropyl Methylcellulose) Correctly?

(Summary description)HPMC can be divided into instantaneous type (surface treatment) and hot melt type (non-surface treatment). The instant product disperses rapidly in cold water and disappears in the water.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2021-07-26
  • Views:0
Information

How To Dissolve HPMC(Hydroxypropyl Methylcellulose) Correctly?
HPMC can be divided into instantaneous type (surface treatment) and hot melt type (non-surface treatment). The instant product disperses rapidly in cold water and disappears in the water. At this time, the liquid has no viscosity, because HPMC is only dispersed in water and not really dissolved. After about 2 minutes, the viscosity of the liquid gradually increased, forming a transparent viscous colloid. Hot-melt type, agglomerates in cold water, but quickly disperses in hot water, and disappears in hot water until the temperature drops to a certain temperature, and the viscosity slowly appears until a transparent viscous colloid is formed. The reason for the agglomeration in cold water is that the cellulose powder in the outer layer immediately begins to be sticky and thickens into a transparent colloid when it encounters cold water, while the inner cellulose is not in contact with water, is surrounded by colloids, or is powdery, but slowly dissolve. In practical applications, there is no need to use hot water to dissolve hot melt products, because putty powder or mortar is a powder. After dry mixing, the cellulose is separated by other substances.

When it encounters water, it immediately becomes viscous and does not clump. Hot melt type can only be used in putty powder and mortar. In liquid glue and paint, there will be lumps. It is widely used in instant type (surface treatment), in putty powder and mortar, as well as liquid glue and paint. There are no contraindications. However, for the instant type (surface treatment), its water retention performance and stability cannot be compared with the hot melt type (non-surface treatment). Therefore, we recommend hot-melt (non-surface-treated) type in dry powders, such as putty powder and mortar.

In short, for different types of products, the correct method can fully dissolve them. If agglomeration occurs during the dissolution process, it is caused by insufficient stirring or direct addition of ordinary molds in cold water. At this point, it should be stirred quickly. In addition, if bubbles are generated during the dissolution process, they can be placed or defoamers can be added.
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