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Thickener HPMC is a key product of QINGQUAN company, characterized by high purity, high quality, and low price. We have been specializing in Cellulose ether HPMC production for over 15 years.
Hydroxypropylmethylcellulose (HPMC) is a nonionic cellulose alkyl hydroxyalkyl mixed ether obtained from cellulose by alkalization, etherification, neutralization and washing processes.
Molecular structure and synthetic principle of hydroxypropyl methyl cellulose ether
We would like to introduce you to the properties and principles of QINGQUAN cellulose ethers
Classification and Main Indicators of Qingquan Product Models
QINGQUAN0 is using MK (75HPMC)
Qingquan Indicators | QINGQUAN - HPMC | |||
ME(60HPMC) | MF(65HPMC) | MJ(70HPMC) | MK(75HPMC) | |
Methoxy content /% | 28.0-30.0 | 27.0-30.0 | 16.5-20.0 | 19.0-24.0 |
Hydroxypropyloxy content/% | 7.5-12.0 | 4.0-7.5 | 23.0-32.0 | 4.0-12.0 |
Gel temperature /ºC | 58.0-64.0 | 62.0-68.0 | 68.0-75.0 | 70.0-90.0 |
Ash /% | ≤1.0 | |||
Moisture /% | ≤5.0 | |||
pH value | 4.0-8.5 | |||
Viscosity (2% aqueous solution, 20°C)/mPa-s | (ND-J)10000-200000 | |||
Appearance | White powder | |||
Surface tension (CCL4)/(X10-3N/M2) | 10 | |||
HPMC is applied to cement mortar
HPMC has a wide range of roles in construction materials, it can be applied to masonry mortar, plastering mortar, stucco, plastering paste, adding a small amount of HPMC to the material will result in a great improvement in these properties. In cement and gypsum based, plasters, the moisture retention effect of HPMC will result in high bond strength and hardness of the plaster after curing.
High water retention can make the cement fully hydrated, significantly increase the bond strength, but also appropriate to improve the tensile bond strength and shear bond strength of hardened mortar, but also significantly improve the ease of use and lubricity, greatly improve the construction effect, improve work efficiency. When cement mortar is used, it is important to ensure good water retention because of the strong water absorption of bricks and wall surfaces, coupled with the high sand content of the mortar. Otherwise, bricks etc. can easily adsorb the water out of the mortar, making the mortar partially water-loss and the cement difficult to fully hydrate. The bond strength of mortar composed of sand-lime-cement is very low, and after adding cellulose ether, the bond strength increases significantly, and the tensile bond strength and shear bond strength will be relatively high even if there is a significant eccentric load or horizontal load occurs.
