Self-Crosslinking Polysaccharide SAP for Absorption and Biodegradability
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Solution Overview
Problem
Existing hydrogel polymers used as Super Absorbent Polymers (SAPs) face challenges in balancing absorption capacity and biodegradability, with biodegradable materials often compromising on one or both properties due to inefficient cross-linking methods.
Innovation Solution
A polysaccharide-based polymer material is developed with a specific functional group introduction at a predetermined ratio, allowing self-crosslinking without the need for cross-linking agents, thereby enhancing absorption capacity and biodegradability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cross-linking is performed using acrylate-based or vinyl-based compounds to form SAP from polysaccharides, then absorption capacity is improved, but biodegradability deteriorates
Solution Approach 1:
The patent extracts and eliminates the harmful cross-linking agents (acrylate-based or vinyl-based compounds) from the system while maintaining the necessary cross-linking function through alternative means, thereby preserving biodegradability while achieving adequate absorption capacity
Solution Approach 2:
The polysaccharide material performs self-cross-linking through its own functional groups without requiring external cross-linking agents, enabling the material to achieve both absorption capacity and biodegradability simultaneously by using its intrinsic properties
2Reliability
If cross-linking is performed without using cross-linking agents or while minimizing their amount to maintain biodegradability, then biodegradability is improved, but cross-linking efficiency and absorption capacity deteriorate
Solution Approach 1:
The polysaccharide material performs self-cross-linking through its own functional groups without requiring external cross-linking agents, enabling the material to achieve both absorption capacity and biodegradability simultaneously by using its intrinsic properties
Solution Approach 2:
The patent changes the chemical parameters of the polysaccharide by introducing specific functional groups at predetermined ratios, which enables efficient self-cross-linking and achieves both high absorption capacity and maintained biodegradability without relying on external cross-linking agents
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 polymer material achieves excellent absorption capacity and biodegradability, meeting or exceeding industry standards for moisture content, centrifuge retention capacity, and absorption under pressure, while ensuring effective biodegradation.
Implementation Method 1
The SAP is a material that can absorb moisture tens to thousands of times its own weight
Implementation Method 2
a cross-linked hydrophilic polymer
Implementation Method 3
there are various attempts to manufacture the SAP from so-called biodegradable materials
Data Source
AI summary
The present application relates to a polymer material and a use thereof. The present application can provide a polymer material having both excellent biodegradability and absorptivity by using a polysaccharide component capable of efficient cross-linking while using no cross-linking agent that can adversely affect biodegradability, or using the relevant component to the minimum. The present application can also provide a use of the polymer material.