China Cellulose ether - Kima Chemical Co.,Ltd

  Abstract: The production and consumption of hydroxymethyl cellulose and methyl cellulose and their derivatives were introduced, and the future market demand was predicted. The competition factors and problems in the cellulose ether industry were analyzed. Some suggestions on the development of cellulose ether industry in our country were given. Key words: cellulose ether; Market demand analysis; Market research   1. Classification and use of cellulose ether 1.1 Classification Cellulose ether is a polymer compound in which the hydrogen atoms on the anhydrous glucose unit of cellulose are replaced by alkyl or substituted alkyl groups. On the chain of cellulose polymerization. Each anhydrous glucose unit has three hydroxyl groups that can participate in the reaction if completely replaced. The value of DS is 3, and the degree of substitution of commercially available products ranges from 0.4 to 2.8. And when it's replaced by an alkenyl oxide, it can form a new hydroxyl group th...

Hydroxypropyl Methyl Cellulose HPMC in Building Materials : Hydroxypropyl methylcellulose(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 sol...

 Basic properties of Drymix mortar Drymix Mortar is the most widely used and one of the essential materials in modern construction engineering. It is composed of cement, sand and admixtures. Cement is the main cementing material. Today let's learn more about the basic properties of drymix mortar. Construction mortar: It is a construction material prepared by cementing material, fine aggregate, admixture and water in proper proportions. Masonry mortar: The mortar that binds bricks, stones, blocks, etc. into masonry is called masonry mortar. Masonry mortar plays the role of cementing blocks and transmitting load, and is an important part of masonry. 1. Composition materials of masonry mortar (1) Cementing material and admixture The cementing materials commonly used in masonry mortar include cement, lime paste, and building gypsum. The strength grade of cement used for masonry mortar should be selected according to the design requirements. The strength grade of cement used in cement m...

  Two gypsum plaster   formulation are recommended below : 1 .   heavy gypsum plaster mortar   formula Gypsum powder (initial setting time 5-6 minutes) - 300 kg Washed sand - 650 kg Talc powder - 50 kg Gypsum retarder - 0.8 kg Cellulose ether HPMC   (80,000-100,000 cps ) — 1.5kg Thixotropic lubricant - 0.5 kg The operating time is 60-70 minutes, the water retention rate is 96%, and the national standard water retention rate is 75%   2 . lightweight gypsum plaster mortar   formula Gypsum powder (initial setting time 5-6 minutes) — 850 kg Washed sand - 100 kg Talc powder - 50 kg Gypsum retarder - 1.5 kg Cellulose ether HPMC (40,000-60,000) — 2.5 kg Thixotropic lubricant - 1 kg Vitrified beads - 1 cubic

  What is G ypsum plaster   formula ?   Before determining the amount of gypsum retarder, it is necessary to test the raw gypsum powder purchased. For example, test the initial and final setting time of gypsum powder, standard water consumption (that is, standard consistency), and flexural compressive strength. If possible, it is best to test the content of II water, semi-water and anhydrous gypsum in gypsum powder. First measure the indicators of gypsum powder accurately, and then determine the amount of gypsum retarder according to the length of initial setting time of gypsum powder, the proportion of gypsum powder in the required gypsum mortar and the operation time required for gypsum mortar . The amount of gypsum retarder has a lot to do with gypsum powder: if the initial setting time of gypsum powder is short, the amount of retarder should be larger; if the initial setting time of gypsum powder is long, the amount of retarder should be less. If the proportion of gyp...

Chemical   name: H ydroxypropyl M ethyl   C ellulose; synonym: HPMC; E464; MHPC; Hydroxypropyl methylcellulose. Hydroxypropyl methyl cellulose , Hypromellose. CAS no. : 9004-65-3 Formula: Molecular weight: 86000.00000   HPMC Physical properties: Appearance and properties: white or white fibrous or granular powder. Density: 1.39 g/cm3. Solubility: almost insoluble in anhydrous ethanol, ethyl ether and acetone; Swelling in cold water to clarify or slightly turbid colloidal solution. Stability: solids are flammable and incompatible with strong oxidizing agents.   HPMC chemical  properties 1. Appearance: white or white powder. 2. Granularity; 100 mesh pass rate is greater than 98.5%; 80 mesh pass rate is 100%. Sizes of special sizes 40 ~ 60. 3, carbonization temperature: 280-300 ℃ 4. Visual density: 0.25-0.70g/cm(usually around 0.5g/cm), with a weight of 1.26-1.31. 5, color temperature: 190-200 ℃ 6. Surface tension: 2% water solution is 42-56dyn/cm. 7. Solubility: ...