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SAP-超级吸水树脂
2024-08-17


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Super Absorbent Polymers (SAP) are materials that can absorb and retain extremely large amounts of liquid relative to their own weight. They are used in a variety of applications, including disposable diapers, feminine hygiene products, agricultural soil conditioners, and medical applications.

The production of SAP typically involves the following steps:

1. Polymerization:

   - Initiation: The monomers (usually acrylic acid or acrylamide) are mixed with water and an initiator to start the polymerization reaction.

   - Crosslinking: A crosslinking agent is added to create a three-dimensional network structure.

2. Neutralization:

   - If the SAP is made from acrylic acid, it may need to be neutralized with a base (such as sodium hydroxide) to improve its absorbency.

3. Drying:

   - The gel-like material is dried to remove excess water and form a solid polymer.

4. Grinding:

   - The dried polymer is ground into particles of the desired size.

5. Classification:

   - Particles are sorted by size to ensure consistent performance.

6. Packaging:

   - The final product is packaged for distribution.

Equipment used in the manufacturing process includes:

- Reactors: Used for polymerization and crosslinking.

- Mixers: To blend the monomer solution and other components.

- Dryers: Rotary dryers or fluid bed dryers are often used.


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