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Building Materials

Hydroxypropyl Methyl Cellulose

HYDROXYPROPYL METHYLCELLULOSE HPMC

 

INTRODUCTION

 

 


Hydroxypropyl methyl cellulose is a nonionic water-soluble cellulose ether which is derived from natural cellulose (pulp & cotton).The cellulose reacts with Sodium hydroxide solution to produce an alkali cellulose , then alkali cellulose reacts with etherification agents such as methyl chloride, propylene oxide or ethylene oxide to get HPMC product . Although cellulose contains many hydrophilic hydroxyl groups, it will not dissolve in water. That is because hydroxyl groups can create strong intermolecular hydrogen bondings, and form crystal structures to prevent water flowing into the interval between cellulose molecules

During the etherification phase, some hydrogen atoms of the hydroxyl groups of cellulose are substituted by methyl groups (-CH3), hydroxypropyl groups (-CH2CHOHCH3), and these substituents can eliminate intermolecular hydrogen bondings to make our product water-soluble.

 

 

SPECIFICATION

 

 

APPLICATION

 

 

STORAGE&PACKAGE

 

Sealed and kept in a dry place.

25KG Woven polypropylene packaging products.