Highly substituted hydroxypropyl cellulose (H-HPC) is a thermoplastic, non-ionic cellulose ether that is soluble in water and many organic solvents. Aqueous solutions have moderate surface activity and produce thickening and stabilizing effects in water-dispersed systems. At very high concentrations, HPC exhibits liquid crystal properties. Water soluble - soluble in cold water, the aqueous solution is heated to 40 ~ 45℃ turbidity point, polymer begins to precipitate out of the solution, if there are other components in the solution will affect its turbidity point. Organic solvent - HPC can also be dissolved in a variety of organic solvents to obtain the flow characteristics of the solution, such as methanol, ethanol, propylene glycol and fibrinolytic agent, can also be dissolved in organic solvent-water system. Pseudoplasticity - HPC solution has pseudoplastic flow characteristics viscosity increases rapidly with the increase of concentration, at a high concentration, HPC presents liquid crystal characteristics. Its solids can be molded or extruded above 100 ° C. Anti-enzyme - has a strong anti-enzyme ability, excellent resistance to biodegradation. Water absorption - has a low equilibrium moisture content. HPC Typical physical properties Property Index Property Index polymer (solid powder) moisture content, max%5.0 appearance grayish white odorless, tasteless aqueous solution volume density, g/mL0.5 density, 2%30℃g/mL1.010 softening point, ℃130 refractive index 1.337 Burning temperature, ℃450 ~ 500 surface tension, 0.1%,mN/m43.6 particle size distribution Interfacial tension 0.1%(mineral oil),mN/ m12.5 through 590μm (30 mesh), %95% through 840μm (20 mesh), %99% capacity, L/kg0.33 ash, measured by Na2SO4, max%0.5 cloud point, 40 ~ 45HPC has two specifications for industrial use and food use. Food-grade HPC can also be used in pharmaceuticals and cosmetics. The following table lists the main application areas and functions of water-soluble HPC. Applications As binders As thickeners in solvent-based binder formulations. Used in hot-sol binders as a thermoplastic binder in the manufacture of ceramics and electrical insulation materials as a solvent-based, fusible low-ash binder in ethanol and core-based pulping compounds as a thickener, binder and dispersant in powder metallurgy as a solvent-based binder for metal powders as an alcohol-soluble thickener and film forming agent in cosmetics hair gels, toners, perfumes and toilet water as an alcohol-soluble thickener and film forming agent in snowcreams, Emulsion stabilizers and thickeners in cleansers and shampoos capsules in miniature and large capsules as soluble and edible encapsulation adhesive covers food stirring and foam stabilizers and foam stabilizers in paint remover formulations for strippers and rinses as oil-soluble acid-resistant thickeners for drugs as stabilizers, thickeners and alcohols for alcohol-soluble coatings on tablet surfaces and for forming binders for drugs Soluble dispersant PVC as a surface active protective colloidal ink in PVC suspension polymerization as a thickener, binder and dispersant in water - and oil-based inks