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[Chemical Knowledge]：Properties and Uses of Dissolving Pulp

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The properties and uses of dissolving pulp play an important role in the field of raw materials for chemical production. This paper will discuss the properties, production methods, main uses and development trends of dissolving pulp in order to fully understand its application value in the field of chemical production.

the properties of 1. dissolving pulp

dissolving pulp is a raw material for the production of chemical fibers, plastics, adhesives and other chemicals, the main component of cellulose. It has the following properties:

1. Good cellulose content: Dissolving pulp has a high cellulose content, generally above 90%, which makes it a high-quality raw material for the production of chemical fibers and other products.
2. Good spinnability: Dissolving pulp has good spinnability and can form uniform and continuous filaments, which is suitable for various spinning processes.
3. Lower impurity content: The dissolving pulp is strictly purified in the production process, which contains fewer impurities, which is conducive to improving the purity and quality of the product.

2. Dissolving Pulp Production Method

Dissolving Pulp production method mainly has two kinds: chemical method and physical method. Chemical methods include alkali method, sulfurous acid method and organic solvent method, and physical law includes mechanical method, steam explosion method, etc. The properties and uses of dissolving pulp obtained by different production methods are different.

3. The main purpose of dissolving pulp

1. Chemical fiber production: Dissolving pulp is the main raw material for chemical fiber production, which can be used for the production of viscose fiber, acetate fiber, lyocell fiber, etc. These chemical fibers are widely used in textiles, clothing, non-woven fabrics and other fields.
2. Plastic production: Dissolving pulp can be used as a reinforcing agent, filler, etc. added to the plastic, improve the mechanical properties of plastic, thermal stability and so on.
3. Adhesive production: Dissolving pulp can be used to prepare various adhesives, such as wood glue, paper glue, etc., to improve the bonding strength and water resistance of the adhesive.
The development trend of dissolving pulp in
4.

With the progress of science and technology and the improvement of environmental protection awareness, the development of dissolving pulp shows the following trends:

1. Green environmental protection: The production process of dissolving pulp will pay more attention to environmental protection, reduce the emission of pollutants and improve the utilization rate of resources.
2. High performance: by improving the production process and optimizing the formula, improve the performance index of dissolving pulp to meet the application requirements of more fields.
3. Diversified development: The application field of dissolving pulp will continue to expand. In addition to traditional textiles, clothing, non-woven fabrics and other fields, it will also extend to more fields, such as biomedicine, aerospace, etc.

In conclusion, as an important raw material for chemical production, dissolving pulp will continue to play an important role in the future development. Through in-depth study of its properties, production methods, main uses and development trends, it is helpful to better understand the application value of dissolving pulp in the field of chemical production, and provide strong support for the development of related industries.

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