Classification Of SAP Powder Preparation Materials

Author:Baby & Adult Diaper Materials FROM:Diaper Materials Manufacturer TIME:2023-02-07

SAP powder is a new type of polymer material with excellent water absorption and water retention. Its application fields have expanded from the initial soil improvement to personal care products, industrial production and other fields, and are still expanding. This article briefly introduces the types of materials prepared from superabsorbent resins according to their sources.

1. Preparation of SAP powder from natural polymer hydrophilic materials

Natural hydrophilic materials usually use chitosan, starch, cellulose, biological glue, etc. as the main raw materials. After chemical modification of these natural materials, polymerization is carried out to improve the water absorption and water retention of these natural materials. The advantage of this kind of raw material is that the raw material is cheap and easy to obtain, and the resources are sufficient and renewable; the disadvantage is that because the preparation material is a natural material, the stability of the prepared SAP powder is poor, the water retention also needs to be improved, and it is easily degraded by microorganisms during use. In particular, it has a great impact on its service life in the natural environment.

 SAP powder

2. Synthesis of polymer hydrophilic materials to prepare SAP powder

Petrochemical polymer hydrophilic materials mainly include polyacrylic acid, polyacrylamide, acrylic acid and acrylamide copolymer, acrylic acid and acrylonitrile copolymer, polyvinyl alcohol, polyaspartic acid, polyethylene glycol, etc. Compared with natural polymer materials, this material has a simpler preparation process, the prepared material has better water absorption and water retention, and its service life is also better than SAP powder prepared from natural polymer materials. However, the price of this raw material is higher than that of natural polymer materials, and it is a non-renewable resource, and this raw material may have a certain impact on the environment during the production process.

 super absorbent polymer

3. Preparation of SAP powder by graft copolymerization of natural biomass and synthetic polymers

Natural biomass mainly refers to some crop straws, potato waste residue, sugarcane waste residue, biological waste (peel, etc.), these natural biomass are used as raw materials for preparation, and petrochemical products are used as preparation monomers (such as AA, AM, AN, etc.) , graft copolymerization on the surface of natural biomass. This preparation method makes full use of some biomass waste materials, and the prepared SAP powder takes into account the advantages of both, has degradability, and solves the environmental hazards of non-degradable petrochemical products. It also improves the problems of poor water absorption and water retention performance and weak recyclability of natural polymers, and has excellent water absorption and water retention performance and long service life.

 super absorbent polymer powder

Due to its excellent water absorption and water retention, SAP powder has important application prospects in many fields, such as medical and health, agriculture, forestry and horticulture. Understanding the classification of SAP powder preparation materials will help people to further understand this new material.

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