Hydroxypropyl Methyl Cellulose raw Materials Powder CAS 9004-65-3

CAS:9004-65-3

MF:C3H7O*

MW:59.08708

EINECS:618-389-6

Specification​: 99% min Hydroxypropyl Methyl Cellulose Powder

Sample:Hydroxypropyl Methyl Cellulose Powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance:White

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Hydroxypropyl Methyl Cellulose Powder Usage and Synthesis.

Hydroxypropyl methylcellulose is a commonly used chemical additive, widely used in construction, coatings, food and other fields. It has good water retention, thickening and adhesive properties, which can improve the performance of materials. We can learn:

1.Hydroxypropyl methylcellulose can be used as glue powder for mortar, putty, paint, etc. to improve its adhesion and water retention.

2. With high quality industry benchmark, its product formula has been upgraded with multi-functional characteristics.

3. Hydroxypropyl Methyl Cellulose is produced by etherification of refined cotton as raw material under alkaline conditions, and its water retention property can enhance the post-hardening strength of the slurry.

Uses of Hydroxypropyl Methyl Cellulose.

Used in synthetic resins, petrochemicals, ceramics, papermaking, leather, textile printing and dyeing, pharmaceuticals, food, cosmetics and other daily-use chemicals, as dispersants, thickeners, binders, excipients, capsules, oil-resistant coatings and fillers.

It is used as thickener, dispersant, binder, emulsifier and stabilizer in textile industry. It is also widely used in synthetic resin, petrochemical, ceramics, paper making, leather, medicine, food, cosmetics and other industries.

It is used as dispersant of synthetic resin, mold-forming agent of paint, and also used as thickener.

Chemical Properties of Hydroxypropyl Methyl Cellulose.

A propylene glycol ether of methyl cellulose in which both hydroxypropyl and methyl groups are bound by ether bonds to the anhydrous glucose ring of the cellulose. The ratio of methoxy to hydroxypropyl content varies from type to type.

White to off-white fibrous powder or granules. Soluble in water and some organic solvents. Insoluble in ethanol, aqueous solution has surface activity, drying to form a film, after heating and cooling, in turn, undergo a reversible transformation from sol to gel.

Product Method of Bulk Hydroxypropyl Methyl Cellulose Powder.

100kg of refined short cotton lint was immersed in 45% lye at a temperature of 35-40°C for 0.5-1.0h, and then removed for pressing. Press until the weight is 2.7 times the weight of cotton lint, stop pressing. Crush and loosen.

Aging at 35 ℃ for 16h. Put the above aged alkali fiber into the reactor, add chloromethane, propylene oxide in turn, and react at 80 ℃, pressure of 1.8MPa for 5-8h, then add appropriate amount of hydrochloric acid and oxalic acid in hot water at 90 ℃ to wash the material, so as to make the volume expansion.

Dewatering with centrifuge. Wash to neutral, when the moisture content in the material is less than 60%, dry it with 130℃ hot air flow to less than 5% water content. Finally crushed through a 20-mesh sieve to get the finished product.