| Customization: | Available |
|---|---|
| CAS No.: | 9003-04-7 |
| Formula: | (C3h3nao2)N |
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| Item | Super Absorbent Polymer (SAP) |
| Application | Baby diaper, Adult diaper, Under pad, Snitary napkin |
| Function | High apsorption from the diaper |
| Brand name | Sumitomo, San-dia, LG, Taisu, BLD and Nuoer etc.. |
| Model No. | 60S, 60N, 930, 388SDA etc. |
| Material | Sodium polyacrylate Powder |
| Appearance | White Powder |
| Absorption | 65g/g |
| PH Value | 5.8-6.4 |
| Application | for the absorbent core of baby diaper, adult diaper and sanitary pads making |
| Package | 20kg/pack, 700kg/bag. |
| Guarantee Period | 2 year in dry and cool environment |
| Services | existing specification, free samples. |
| Lead Time | 10-20 days after receipt of the deposit. |
| Payment Terms | L/C, T/T, Paypal, Western Union & Cash. |
SAP, or Super Absorbent Polymer, is a type of advanced material known for its exceptional ability to absorb and retain large amounts of liquid relative to its own mass. SAPs are widely used in various industries, including hygiene products, agriculture, and medical applications. Below is a comprehensive overview of SAP, including its properties, types, manufacturing process, and applications.
Definition: SAP is a cross-linked polymer that can absorb and retain water or aqueous solutions up to hundreds of times its own weight.
Key Property: Forms a gel-like substance when hydrated, locking in the liquid and preventing leakage.
Common Forms: White granular powder or small beads.
SAPs are typically made from polyacrylic acid or its derivatives. The most common types include:
Sodium Polyacrylate: The most widely used SAP, known for its high absorbency and cost-effectiveness.
Potassium Polyacrylate: Used in agriculture for water retention in soil.
Copolymer SAPs: Blended with other polymers (e.g., starch, cellulose) for specific applications.
High Absorbency: Can absorb 300-1000 times its weight in water.
Retention Capacity: Retains liquid even under pressure.
Swelling: Forms a gel when hydrated, which locks in the liquid.
Biocompatibility: Non-toxic and safe for use in hygiene and medical products.
pH Sensitivity: Absorbency varies with pH (optimal performance in neutral to slightly alkaline conditions).
Thermal Stability: Stable at high temperatures, making it suitable for sterilization processes.
SAP is produced through a polymerization process, typically involving the following steps:
Monomer: Acrylic acid (AA) is the primary monomer.
Neutralization: Acrylic acid is partially neutralized with sodium hydroxide (NaOH) to form sodium acrylate.
Cross-Linking: A cross-linking agent (e.g., N,N'-methylenebisacrylamide) is added to create a three-dimensional network.
Polymerization Reaction: The mixture undergoes polymerization, often initiated by a catalyst or UV light.
The polymer gel is dried to remove moisture.
The dried polymer is ground into fine particles or granules.
The particles may undergo surface cross-linking to improve absorbency under pressure and reduce gel blocking.
SAPs are categorized based on their composition and application:
Properties: High absorbency, fast swelling, and excellent retention.
Applications: Hygiene products (e.g., diapers, sanitary napkins).
Properties: Absorbs water and releases it slowly.
Applications: Agricultural water retention (e.g., soil conditioners).
Properties: Biodegradable and eco-friendly.
Applications: Disposable hygiene products and agriculture.
Properties: Derived from natural sources, biodegradable.
Applications: Medical and hygiene products.
SAP is used in a wide range of industries due to its unique properties:
Diapers: Absorbs and locks in urine, keeping the skin dry.
Sanitary Napkins: Provides high absorbency and leak protection.
Adult Incontinence Products: Offers comfort and reliability for elderly or disabled individuals.
Soil Conditioners: Improves water retention in soil, reducing irrigation needs.
Seed Coatings: Enhances germination by maintaining moisture around seeds.
Wound Dressings: Absorbs exudate and promotes healing.
Ice Packs: Used in cold therapy products.
Water Blocking Cables: Prevents water ingress in communication cables.
Spill Control: Absorbs liquid spills in industrial settings.
Absorbent Pads: Used in meat and poultry packaging to absorb excess liquid.
High Efficiency: Absorbs large amounts of liquid quickly.
Leak Prevention: Forms a gel that locks in moisture.
Versatility: Suitable for a wide range of applications.
Cost-Effective: Reduces the need for frequent changes in hygiene products.
Eco-Friendly Options: Biodegradable SAPs are available for sustainable applications.
Non-Biodegradability: Traditional SAPs are not biodegradable, leading to environmental concerns.
Recycling Challenges: SAPs in hygiene products are difficult to recycle due to contamination.
Sustainable Alternatives: Starch-based and cellulose-based SAPs are being developed to address environmental issues
Biodegradable SAPs: Development of eco-friendly SAPs for sustainable applications.
Enhanced Performance: SAPs with improved absorbency under pressure and faster swelling rates.
Medical Innovations: SAPs for advanced wound care and drug delivery systems.
SAP is a revolutionary material that has transformed industries like hygiene, agriculture, and healthcare. Its unique ability to absorb and retain liquids makes it indispensable in modern life. If you have specific questions about SAP or its applications, feel free to ask!
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