Carboxymethyl Cellulose

Put the plant cotton fibers into a reaction vessel, sprinkle them with caustic soda solution under stirring conditions, knead for 1 hour, add sodium chloroacetate, knead for reaction, then transfer the above products to a maturation tank and let them age for 12-24 hours.
  • Detailed Description

Carboxymethyl fiber HV-CMC, LV-CMC, MV-CMC

NAME Sodium carboxymethyl cellulose

Product synthesis and process

Put the plant cotton fibers into a reaction vessel, sprinkle them with caustic soda solution under stirring conditions, knead for 1 hour, add sodium chloroacetate, knead for reaction, then transfer the above products to a maturation tank and let them age for 12-24 hours. After the coarse powder of the matured product is sent to a belt dryer for drying, crushing, mixing, and packaging, it is the carboxymethyl cellulose product.

 

Product performance and quality indicators

 

CMC is an anionic polyelectrolyte prepared by the reaction of sodium chloroacetate and alkaline cellulose, abbreviated as CMC. Its degree of substitution ranges from 0.4 to 1.2. Depending on its purity, it appears as a white or grayish white powder, non-toxic, insoluble in organic solvents such as ethanol and acetone, soluble in water, and a transparent and viscous colloid in aqueous solution. It has good salt resistance and follows the standard SY/T5093-92. The main quality indicators of the product are as follows:

 

Property

 

Project

Index

LV-CMC high

MV—CMC centre

 

HV—CMC low

Appearance

Free flowing white or light yellow powder

Water content%

≤10.0

Purity%

≥80.0

≥85.0

≥95.0

Degree of substitution

≥0.80

≥0.65

≥0.80

PH value

7.0-9.0

7.0-9.0

6.5-8.0

 

Pulping performance

 

Project

Index

Pulping rate

Distilled water, rice ³/ ton

≥200

Salt water (NaC14%), in meters ³/ ton

≥150

Saturated saltwater (NaCL) meter ³/ ton

≥160

 

Purpose

 

In drilling fluid, it can be used as a drilling fluid viscosity enhancer, filter reducer, and emulsifier, with strong salt resistance, suitable for various types of water-based drilling fluid systems, and its dosage is generally 1.0% -2.0%.

Technical support: Puyang Yiwang Information Technology Co., Ltd

Copyright of YuICPBei 2020028595-1 belongs to Puyang Rongtai Chemical Co., Ltd. It is a professional manufacturer of water treatment agents, oilfield drilling mud materials, environmental protection materials, and water purification materials. Welcome to inquire by phone!

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