|Item:||Hydroxypropyl Methyl Cellulose|
Hydroxypropyl methylcellulose (hpmc) is a semisynthetic, viscoelastic polymer, it is a cellulose ether.Hydroxypropylmethyl cellulose (hpmc) can be dissolved into some organic solvents and also in water-organic solvent mixed solvents. It does not have a gelation property when heated. Hpmc is a is non-toxic to humans the raw material from cotton and wood.
hydroxypropyl methylcellulose (hpmc) is hygroscopic after drying but stable. Its solution is stable at ph 3-11. As the temperature increases, the viscosity of the solution decreases. Heating-cooling can reversibly convert hpmc from a solution state to a gel state.
According to different grades and concentrations, the gelation temperature is 50 ～ 90 ℃. Hpmc aqueous solution has anti-enzyme effect and maintains good viscosity stability during long-term storage.
However, its aqueous solution is susceptible to attack by microorganisms, so preservatives should be added during storage. When hpmc is used as a thickener in ophthalmic eye drops, benzalkonium chloride is usually added as a preservative.
We hpmc manufacturer（manufacturing） provide hpmc for wll putty,welcome to contact us to know more.
Listal Cellulose Ethers provide the putty with the following properties:
一 excellent water retention
一 easy trowelling
一 long open time
一 wide adaptability range of the environment
Food Additives, Thickening Agents, Cements, Detergents, Emulsifiers, Paints, Polymers, Tiles.
-Batch of wall putty
-Water resistant putty for inner wall
-Water resistant and crack resistant putty for inner wall
-Exterior wall putty
-Water resistant putty for exterior wall
-Flexible putty for exterior wall
-Flexible crack resistant waterproof putty for inner wall
Physical & Chemical Properties
Packaging and Storage
A. Standard Packing: In 25kg paper bags inner with PE bags
B. Big Bag or other special packages are possible on request.
Store it in a cool, dry place below 30°C and protected against humidity and pressing.
Keep in a cool, well-ventilated place, stored away from extreme heat and away from strong oxidizing agents.