Hydroxypropyl methyl cellulose HPMC
CAS No. : 9004-65-3
EINECS No.:220-971-6
Molecular weight: 748.8
HS Code: 3912390000
Molecular Formula: C32H60O19
Package:25kg per bag or drum,or according the clients' requirements.
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Introduction:
Hydroxypropyl methyl cellulose Introduction:
Hypromellose, also known as Hydroxypropyl methyl cellulose, is one of the non-ionic cellulose mixed ethers. It is a semi-synthetic, inactive, viscoelastic polymer.
Appearance: white or almost white fibrous or granular powder.
Hydroxypropyl methyl cellulose usage:
Used as thickener, dispersant, binder, exciphant, oil resistant coating, filler, emulsifier and stabilizer in textile industry. Also widely used in synthetic resin, petrochemical, ceramic, paper, leather, medicine, food and cosmetics and other industries.
1, construction industry: as cement mortar water retention agent, retarder mortar with pumping. In plastering, gypsum, putty powder or other building materials as adhesive, improve daub and prolong the operation time. Used for pasting ceramic tile, marble, plastic decoration, paste strengthen agent, still can reduce cement dosage. HPMC's water retention performance makes the slurry after application will not be due to dry too fast and crack, enhance the strength after hardening.
2, ceramic manufacturing: widely used as adhesive in ceramic product manufacturing.
3, coating industry: in the coating industry as a thickener, dispersant and stabilizer, in water or organic solvents have a good solubility. As a paint remover.
4, ink printing: in the ink industry as a thickener, dispersant and stabilizer, in water or organic solvents have a good solubility.
5, plastic: for forming release agent, softener, lubricant, etc.
6, PVC: PVC production as a dispersant, suspension polymerization preparation of PVC main auxiliaries.
7, pharmaceutical industry: coating materials; Membrane material; Rate-controlled polymer materials for sustained-release preparations; Stabilizing agent; Suspended aid; Tablet adhesive; Increases the goo
8, Others: also widely used in leather, paper products industry, fruit and vegetable preservation and textile industry.
parameter:
Hydroxypropyl methyl cellulose Pharma grade
Table 1
|
Pharma grade Model |
E5 |
E10 |
E15 |
E30 |
E50 |
The quality standards are in line with the fourth edition of Chinese Pharmacopoeia in 2020 |
|
Marked viscosity |
5 |
10 |
15 |
30 |
50 |
|
|
Viscosity range |
4-6 |
8-12 |
12-18 |
24-36 |
40-60 |
|
|
Model |
K100 |
K1500 |
K4000 |
K15000 |
K100000 |
|
|
Marked viscosity |
100 |
1500 |
4000 |
15000 |
100000 |
|
|
Viscosity range |
80-120 |
1125-2100 |
3000-5600 |
11250-21000 |
75000-140000 |
Table 2
Hydroxypropyl methyl cellulose Industrial grade
Hydroxypropyl methyl cellulose Specifications:
|
Industrial grade Model |
ST20000 |
ST40000 |
ST75000 |
ST100000 |
ST150000 |
ST200000 |
|
Viscosity（2%，Brookfield LV， mPa·s） |
18000～25000 |
35000～56000 |
70000～85000 |
90000～120000 |
130000～180000 |
180000～230000 |
|
Gelation temperature℃ |
≥70 |
≥70 |
≥70 |
≥70 |
≥70 |
≥70 |
|
Moisture |
≤6.0% |
≤6.0% |
≤6.0% |
≤6.0% |
≤6.0% |
≤6.0% |
|
Ash |
≤2.5% |
≤2.5% |
≤2.5% |
≤2.5% |
≤2.5% |
≤2.5% |
|
Additive amount |
≥0.02% |
≥0.018% |
≥0.017% |
≥0.016% |
≥0.015% |
≥0.014% |
|
Particle size |
100 mesh |
100 mesh |
100 mesh |
100 mesh |
100 mesh |
100 mesh |
Performance specification:
|
Industrial grade Model |
ST20000 |
ST40000 |
ST75000 |
ST100000 |
ST150000 |
ST2000000 |
|
Application property |
●●● |
●●● |
●● |
●● |
● |
● |
|
Water-retaining property |
● |
● |
●● |
●● |
●●● |
●●● |
Water retention of hydroxypropyl methyl cellulose in gypsum mortar:
|
Industrial grade Model |
ST20000 |
ST40000 |
ST75000 |
ST100000 |
ST150000 |
ST200000 |
|
Water-retention rate |
≈84% |
≈86% |
≈89% |
≈90% |
≈92% |
≈95% |
service: