Super Absorbent Polymer Composition for Odor Control and Absorbency
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Solution Overview
Problem
Super absorbent polymers used in hygienic materials face challenges with odor suppression due to absorbed liquids and bacterial growth, leading to reduced usability and ineffective deodorizing abilities when excessive deodorizing substances are mixed.
Innovation Solution
A super absorbent polymer composition incorporating a base resin with a cross-linked polymer, a surface cross-linked layer, persimmon extract, glycine, and a chelating agent, along with a specific preparation method involving cross-linking polymerization and mixing of these components, to enhance deodorizing properties while maintaining physical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If deodorizing substances are mixed with the super absorbent polymer to suppress odor, then deodorizing ability is improved, but absorbency is lowered when excessive amounts are used
Solution Approach 1:
The patent optimizes the concentration parameters of deodorizing substances (persimmon extract and glycine) within specific ranges (0.001-0.05 wt% and 0.001-0.03 wt% respectively) to achieve effective odor suppression while preserving absorbency. This parameter optimization resolves the contradiction by finding the optimal balance point where deodorizing effectiveness is achieved without excessive amounts that would compromise absorbency.
Solution Approach 2:
The patent creates a composite super absorbent polymer composition by combining the base polymer with specific deodorizing substances (persimmon extract and glycine) in controlled amounts. This composite approach allows the material to simultaneously exhibit both absorbency and deodorizing properties, resolving the contradiction between these two functions through material composition rather than adding excessive single-substance amounts.
2Object-affected harmful factors
If deodorizing substances are mixed with the super absorbent polymer to suppress odor, then deodorizing ability is improved, but the physical properties of the polymer deteriorate
Solution Approach 1:
The patent specifies precise parameter ranges for the addition of deodorizing substances (persimmon extract at 0.001-0.05 wt% and glycine at 0.001-0.03 wt%) to maintain the physical properties of the polymer. By controlling these parameters within optimal ranges, the patent achieves odor suppression while preventing deterioration of physical properties such as absorbency, water retention capacity, and structural integrity.
Solution Approach 2:
The patent applies deodorizing substances in localized, controlled amounts rather than uniformly throughout the entire polymer matrix. This localized approach allows odor suppression functionality to be added without excessively compromising the bulk physical properties of the polymer, as the deodorizing agents are present in optimized concentrations that balance function and structural integrity.
3Length of stationary object
If the pulp content is reduced in hygienic materials to achieve thinner thickness, then thickness is reduced, but the super absorbent polymer particles are included in multiple layers requiring excellent absorption performance
Solution Approach 1:
The patent modifies the physical and chemical parameters of the super absorbent polymer particles through surface cross-linking and the addition of deodorizing substances. These parameter changes enhance the absorption efficiency and performance of individual particles, allowing the material to maintain excellent absorption capability even when particles are distributed across multiple layers in thin-profile hygienic materials.
Solution Approach 2:
The patent creates a composite super absorbent polymer system with enhanced properties by combining the base polymer with surface cross-linking agents and deodorizing substances. This composite approach improves the overall absorption performance and functional characteristics of the polymer particles, enabling them to perform effectively in multi-layer configurations within thin hygienic materials.
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 composition effectively suppresses odors from absorbed liquids and bacterial growth, maintaining excellent absorption performance and water retention capacity without deteriorating the polymer's physical properties.
Implementation Method 1
a super absorbent polymer comprising a base resin containing a cross-linked polymer
Implementation Method 2
capable of absorbing 500 to 1000 times its own weight of moisture
Implementation Method 3
a surface cross-linked layer formed by further cross-linking the cross-linked polymer using a surface cross-linking agent on a surface of the base resin
Implementation Method 4
a chelating agent
Implementation Method 5
persimmon extract, glycine, and a chelating agent... effectively suppresses odors from absorbed liquids
Data Source
AI summary
The super absorbent polymer composition and the preparation method thereof according to the present disclosure are characterized by having excellent deodorizing ability while minimizing deterioration in physical properties of the super absorbent polymer by mixing persimmon extract, glycine, and a chelating agent into the super absorbent polymer after controlling their combination and mixing ratio, as compared to a composition not utilizing the present disclosure.