Hydroxypropyl methylcellulose HPMC 1) hydroxypropyl methylcellulose ZS-200000mpa s 2) hydroxypropyl methylcellulose ZS-150000mpa s 3) hydroxypropylmethylcellulose ZS-100000mpa s 4) hydroxyalkyl methylcellulose ZS-75000mpa s 5) Hydroxypropylmethylcellulose ZS-40000mpa s 6) ultra-low viscosity hydroxypropyl methylcellulose 7) cosmetic grade hydroxypropylmethylcellulose Chemical Properties 1 Appearance: white or off-white powder. 2, particle size; 100 mesh pass rate of more than 98.5%; 80 mesh pass rate of 100%. Special specifications of particle size 40 to 60 mesh. 3, carbonization temperature: 280-300 ℃ 4, depending on the density: 0.25-0.70g / cm (typically 0.5g / cm or so), the proportion of 1.26-1.31. 5, color temperature: 190-200 ℃ 6, the surface tension: 2% aqueous solution of 42-56dyn / cm 7, Solubility: soluble in water and some solvent, such as an appropriate proportion of ethanol / water, propanol / water. Aqueous solution with surfactant. Transparency, stable performance, different specifications of different gelling temperature, solubility with viscosity changes, the lower the viscosity, the greater the solubility of different specifications have some differences in the performance of HPMC, HPMC dissolved in water pH value is not affected. 8, HPMC with methoxy content decreases the gel point increased, decreased water solubility, surface activity is also decreased. 9, HPMC also has thickening ability, low ash salt, pH stability, retention, dimensional stability, excellent film, as well as a wide range of anti-enzyme, dispersing, and adhesion characteristics. Formula: C12H20O10 Molecular Weight: 324.2848 CAS no: 9004-65 Introduction 1. The construction purposes: as a cement mortar insurance agent, retarder having a pumping mortar. In the plaster slurry, gypsum material, putty or other building materials as a binder to improve spreadability and extend the operating time. Used as a stick tile, marble, plastic decoration, paste enhancers, can also reduce the amount of cement. HPMC water retention will not dry too fast to make a slurry and cracks in the painting, reinforcing the strength after hardening. 2. ceramics industry: the manufacture of ceramic products are widely used as adhesives. 3. Paint industry: in the paint industry as thickeners, dispersants and stabilizers in water or organic solvents have good compatibility. As a paint stripper. 4. Printing ink: the ink industry as thickeners, dispersants and stabilizers in water or an organic solvent having a good compatibility. 5. plastic: for forming release agents, softeners, lubricants. 6. PVC: PVC production dispersant, the Department of the main additive prepared by suspension polymerization of PVC. 7. Other: This product is also widely used in leather, paper products, fresh fruits and vegetables and textiles. 8. pharmaceutical industry: the coating material; membranes; sustained-release rate controlling polymer material preparation; stabilizer; suspending agent; tablet binder; thickening agent