Factory Supply Microcrystalline cellulose Powder CAS 9004-34-6 Raw Materials

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Uses and synthesis of Microcrystalline cellulose Powder

Microcrystalline cellulose Powder is the product of acid hydrolysis of natural cellulose to the limit of polymerization, Microcrystalline cellulose Raw Materials is white or almost white in color, odorless, tasteless, particle size is generally about 2 ~ 80μm, with low density, high modulus, It has the advantages of low density, high modulus, renewable, degradable, and wide source, etc. It can be used as reinforcing agent for composite materials to improve the performance of materials.

Microcrystalline cellulose CAS 9004-34-6 is mainly composed of straight-chain polysaccharides bound by β-1,4-glucosidic bonds, and is a white, odorless, tasteless crystalline powder composed of free-flowing, extremely fine, short, rod-like or powder-like porous particles of natural cellulose hydrolyzed to the limiting degree of polymerization (LODP) by dilute acid.

Microcrystalline cellulose CAS 9004-34-6 In general plant fiber, microcrystalline cellulose accounts for about 70%, the other 30% is amorphous. Microcrystalline cellulose is widely used in pharmaceutical, cosmetic, food and other industries. Different particle sizes and water contents have different characteristics and applications.

Applications / Functions of Microcrystalline cellulose Powder

Microcrystalline cellulose Raw Materials can be used in textile, apparel, brewing, food, paper making and other industries.

Microcrystalline cellulose CAS 9004-34-6 is mainly used as a non-caloric food additive, pharmaceutical excipient and dispersant, filler for thin layer chromatography and column chromatography, color carrier for dyestuffs and pigments, reinforcing filler for thermosetting resins and thermosetting laminates, coating, emulsifying agent, and can also be used for water-based paints and ceramics industry.

Physicochemical Property of Microcrystalline cellulose Powder

Microcrystalline cellulose Powder is generally freeze-dried to a lower density and spray-dried to a higher density. The moisture content is about 5%.Microcrystalline cellulose CAS 9004-34-6 can be dispersed in water but insoluble, insoluble in dilute acid, organic solvents and oil, dissolved in dilute alkali solution, partially dissolved. Disperse microcrystalline cellulose powder in water, get white transparent gel or paste, except for very dilute, placed for many years is still stable.

l,4-bonded glucosyl linear polymer. White, odorless, tasteless substance containing cellulose plastids that can be compressed by self-binding into tablets that disperse rapidly in water. Available in grades ranging from dense, free-flowing powder to coarse, fluffy, non-flowing material. Insoluble in water, dilute acids and almost all organic solvents. Slightly soluble in sodium hydroxide solution and hot sodium casein solution.Microcrystalline cellulose Raw Materials has hydrophilic and lipophilic properties, can be swollen and moistened in water, and is negatively charged, so it can adsorb metal ions and cationic substances in solution.

Production Methodprocess of Microcrystalline cellulose Powder

1. Microcrystalline cellulose Raw Materials is the world's richest natural polymer compounds, the production of raw materials from wood, cotton, cotton fluff, wheat straw, rice straw, reeds, hemp, mulberry bark, kozo bark and bagasse. Due to the lack of forest resources in China, 70% of the raw materials of cellulose come from non-wood resources. China's average cellulose content of coniferous and broadleaf timber is about 43-45%; the average cellulose content of grass stalks is about 40%. Cellulose industrial method is to use sulfite solution or alkali solution cooking plant materials, mainly to remove lignin, respectively, known as sulfite method and alkali method. The materials obtained are called sulfite pulp and alkali pulp. Then after bleaching to further remove residual lignin, the resulting bleached pulp can be used for papermaking. Further removal of hemicellulose, can be used as raw materials for cellulose derivatives.
2. Selected industrial wood pulp board thinning, and then sent to have been added 1% to 10% of hydrochloric acid (dosage of 5% to 10%) of the reactor for temperature hydrolysis, the temperature of 90 ~ 100 ℃, hydrolysis time 0.5 ~ 2h, after the end of the reaction by the cooling sent to the neutralization tank, with liquid alkali adjusted to neutral, filtered cake at 80 ~ 100 ℃ drying, and finally by crushing! Microcrystalline cellulose Powder.
3. Use fiber plant materials and inorganic acid pounded into pulp, made of α-cellulose, and then processed to make cellulose for part of the depolymerization, and then remove the non-crystalline part and purification of Microcrystalline cellulose Powder.
4. Cellulose made from wood pulp or cotton pulp. After bleaching treatment and mechanical dispersion, Microcrystalline cellulose Raw Materials are refined.

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