Polysaccharide Phyllosilicate Nanocomposites for Complex Fluid Absorption
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Solution Overview
Problem
Current superabsorbent materials face challenges in effectively absorbing complex fluids like menses due to the formation of an impermeable layer, which impairs their efficacy, and often require costly manufacturing processes or compromise on their ability to absorb simple fluids, while natural-based materials struggle with absorption properties and gel blocking issues.
Innovation Solution
Development of biodegradable superabsorbent nanocomposite materials comprising polysaccharides and phyllosilicates, which are self-entangled or cross-linked, exhibiting exfoliated and semi-exfoliated patterns, enhancing their ability to absorb both simple and complex fluids without gel flowing or syneresis, and maintaining effectiveness under external pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If superabsorbent materials are designed to absorb complex fluids like menses, then absorption ability for complex fluids improves, but an impermeable layer forms that impairs efficacy
Solution Approach 1:
The patent combines superabsorbent polymer particles with natural fiber materials (cellulose, starch, protein fibers) to create a composite absorbent core. This composite structure allows the superabsorbent material to absorb complex fluids while the natural fibers prevent impermeable layer formation by providing a porous network that maintains fluid pathways, thus resolving the contradiction between absorption ability and impermeable layer formation
Solution Approach 2:
The patent creates different regions within the absorbent core with different properties: zones with higher superabsorbent polymer concentration for fluid absorption, and zones with natural fiber dominance for maintaining porosity and preventing impermeable layer formation. This local differentiation allows simultaneous achievement of complex fluid absorption and prevention of harmful impermeable layers
2Reliability
If superabsorbent materials are chemically treated to enhance complex fluid absorption, then absorption ability improves, but manufacturing complexity and cost increase
Solution Approach 1:
The patent uses inexpensive, readily available natural materials (cellulose fibers, starch, protein fibers) that can be processed through simple, existing manufacturing techniques. These materials provide the necessary functional properties without requiring complex chemical treatments, thus reducing manufacturing complexity and cost while maintaining effective complex fluid absorption capability
3Stability of the object's composition
If natural-based absorbent materials are used, then biodegradability improves, but absorption properties and gel blocking issues worsen
Solution Approach 1:
The patent merges natural fiber materials (which provide biodegradability) with superabsorbent polymer particles (which provide superior absorption properties) in a composite structure. The natural fibers form a porous network that prevents gel blocking while the superabsorbent particles provide high capacity fluid absorption, thus simultaneously achieving biodegradability and improved absorption properties
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The polysaccharide-phyllosilicate nanocomposites demonstrate improved absorption capacities for both simple and complex fluids, including blood and synthetic blood, with reduced penetration times and staining areas, while maintaining stability across a wide range of particle sizes, thus addressing the limitations of existing materials in personal hygiene products.
Implementation Method 1
The polysaccharide-phyllosilicate nanocomposites demonstrate improved absorption capacities for both simple and complex fluids
Implementation Method 2
cells and clotted materials will adsorb onto the surface of the particles composing the superabsorbent material
Implementation Method 3
exhibiting exfoliated and semi-exfoliated patterns, enhancing their ability to absorb both simple and complex fluids
Implementation Method 4
which are self-entangled or cross-linked, exhibiting exfoliated and semi-exfoliated patterns, enhancing their ability to absorb both simple and complex fluids without gel flowing or syneresis
Data Source
AI summary
The present invention relates to an absorbent or a superabsorbent nanocomposite material comprising a polysaccharide and a phyllosilicate. The polysaccharide component can be a biodegradable polysaccharide that is a self-entangled glass-like polysaccharide or a crosslinked polysaccharide. The phyllosilicate component can be an exfoliation or a semi-exfoliation clay.