Cellulose is the oldest and richest natural polymer compound on earth. It is the most precious natural renewable resource for human beings.Cellulose is chemically modified to obtain a series of cellulose derivatives. The natural cellulose is alkalized, neutralized by etherification, purified and dried to prepare a cellulose ether. Cellulose ether is one of the important …
Hydroxypropyl methyl cellulose (HPMC) is a nonionic cellulose ether prepared by a series of chemical processing using natural polymer material cellulose as a raw material. Can be applied to building materials, coatings industry, synthetic resin, ceramic industry, medicine, food, textile, agriculture, daily chemical and other industries. Construction industry： Cement mortar: Improve the dispersibility of cement-sand, …
HPMC has different performances, so that it can be used in many fields. HPMC is widely used in construction, building materials, dispersive coatings, wallpaper pastes, polymerization aids, paint removers, leather, ink, paper, etc. as thickeners, adhesives, water retention agents, film formers, Shape agent and so on. For example, it is used as a binder, thickener …
Gypsum Mortar Defect： At present, gypsum mortar building materials as a new type of building materials, with its good thermal insulation, fire prevention, light weight and air humidity regulation, green safety and environmental protection and other basic characteristics, are more and more widely used in modern construction projects. Due to the use of traditional cement …
The Generation of HPMC Hydroxypropyl methyl cellulose（HPMC）is selected from highly pure cotton cellulose as raw material, treated with lye at 35-40 ° C for half an hour, pressed, The cellulose was pulverized and appropriately aged at 35 ° C so that the average degree of polymerization of the obtained alkali fibers was within a desired …
MC is methyl cellulose, which is obtained by subjecting refined cotton to alkali treatment and then using MC as an etherifying agent to form a cellulose ether through a series of reactions. The degree of substitution is generally 1.6 to 2.0, and the degree of substitution differs depending on the solubility. It belongs to nonionic …
Methyl cellulose（MC）： 1. Appearance: Methyl cellulose is white or off-white fibrous or granular powder, odorless. 2. Apparent density: 0.30-0.70g/cm3, density about 1.3g/cm3. 3. Properties: Methyl cellulose is almost insoluble in absolute ethanol, ether and acetone. Itrapidly disperses and swells in hot water of 80~90>°C, dissolves rapidly after cooling.Therefore the aqueous solution is quite stable at normal temperature. It gelsat high …
Methyl cellulose(MC) properties and methods of solvent Read More »
The water retention of hydroxypropyl methylcellulose HPMC products is often affected by the following factors: 1. Cellulose ether HPMC uniformity The homogeneously reacted HPMC has a uniform distribution of methoxy and hydroxypropoxy groups and a high water retention rate. 2. Cellulose ether HPMC thermogel temperature The thermal gel has a high temperature and a high …
Propylmethylcellulose HPMC is a nonionic cellulose ether prepared by a series of chemical processing using natural polymer material cellulose as a raw material.They are an odorless, odorless, non-toxic white powder that swells in cold water into a clear or slightly turbid colloidal solution. It has the characteristics of thickening, bonding, dispersing, emulsifying, film forming, suspension, …
Analysis of the causes with Cement-based mortar,Exterior wall putty fissures and cracks. Cement-based mortar,Exterior wall putty fissures and cracks,These are all common problems.In many years of research and practice, reasons for the formation of Cement-based mortar,Exterior wall putty fissures and cracks.I think it can be divided into two aspects: “MATERIAL ESSENCE” and “OUTSIDE ENVIRONMENT“ 1.“MATERIAL …
Analysis of the causes with Cement-based mortar,Exterior wall putty fissures and cracks. Read More »
