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50000 viscosity hydroxypropyl methyl cellulose
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- Product description
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50000 viscosity refers to the viscosity of the product being around 50000 mPa · s under specific conditions. Belonging to non-ionic cellulose ether, it is a polymer obtained by chemical modification of natural cellulose. Its molecular chain contains groups such as hydroxypropyl and methyl, which endow it with unique physical and chemical properties.
Main features
High viscosity: HPMC with a viscosity of 50000 has a high viscosity and can provide good thickening effect for the added system. Adding a small amount can significantly increase the viscosity of the solution or material, helping to maintain the stability and uniformity of the system.
Good water retention: It can effectively adsorb and retain moisture, reduce evaporation and loss of moisture, and keep materials moist for a long time in fields such as building materials, which is beneficial for construction operations and the performance of materials.
Strong adhesion: It has good adhesion properties to many materials such as cement, gypsum, paper, fabrics, etc., which can improve the bonding strength between materials, enhance the overall integrity and stability of products.
Excellent film-forming properties: Under appropriate conditions, it can form a tough, transparent, and flexible film with good barrier properties, which can be used to prepare protective films, coatings, etc., playing a protective and decorative role.
Quality index
Viscosity: 50000mPa · s ± 10%, which is within the range of 45000-55000mPa · s.
Methoxy content: generally around 28% -30%.
Hydroxypropyl content: usually between 7% and 12%.
Dry weight loss: not exceeding 5%.
PH value: between 5.0-8.0.
50000 viscosity hydroxypropyl methyl cellulose
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