Hydroxypropyl methylcellulose
China [CN] Hydroxypropyl methylcellulose (HPMC) is a type of nonionic cellulose ether made from natural high olecular materials through a series of chemical processes. With such favorable features as high water etention, good dispersancy, high degree of fineness, nice place ability and convenience to dissolve, it is applicable to the production of innovative construction materials like dry-powder mortar, waterproof putty owder (paste) for indoor and outdoor walls, binding agent, gap filler, interface finishing agent, water paint, self-leveling agent, etc. In the production of construction materials, cellulose ether is an indispensable additive. After HPMC is added, the following properties can be enhanced.
Quality Indices and Technical Parameters
|
Model IndicesItems |
60QR |
65QR |
75QR |
|
Methoxy |
28－30％ |
27－30％ |
19－24％ |
|
Hydroxypropyl |
7－12％ |
4－7.5% |
4-12% |
|
Gelation Temperature（ °C） |
58-64 |
62-68 |
70-90 |
|
Loss on dry |
≤5% |
||
|
Ash Content |
≤1% |
||
|
PH：wt% 25℃ |
4-8 |
||
|
Chloriides:(NACL) |
≤0.2% |
||
|
Arsenic:ppm |
≤2 |
||
|
Heavy metals:ppm |
≤20 |
||
|
Viscosity（wt%，NDJ-1 20℃，mpa.s） |
5-200000 |
||
HPMC may serve as thickening agent, dispersant agent, emulsifying agent or film-forming agent, and its ndustrialized products may be applicable to the production of daily chemicals, synthetic resin, construction nd coating materials.
Main Applications
HPMC may serve as thickening agent, dispersant agent, emulsifying agent or film-forming agent, and its ndustrialized products may be applicable to the production of daily chemicals, synthetic resin, construction nd coating materials.
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