Polysaccharide Hybrid Polymer for Solid Detergent Stability
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Solution Overview
Problem
Conventional solid detergent compositions face issues with dimensional instability and the need for phosphorous-containing components, which complicates the replacement of phosphates and NTA in institutional and commercial applications, leading to unpredictability in solidification and stability.
Innovation Solution
A solid detergent composition comprising a polysaccharide hybrid polymer, a hydratable salt, and water, where the polysaccharide hybrid polymer includes residues of polysaccharides and ethylenically unsaturated monomers, providing dimensional stability and being free of phosphorous-containing components, thus addressing the stability and regulatory compliance issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solid detergent compositions use hydratable salts like sodium carbonate, then they can achieve effective cleaning performance, but they exhibit dimensional instability and swelling after solidification
Solution Approach 1:
The invention uses a composite binding agent system comprising multiple components: a polysaccharide (such as starch or cellulose), a synthetic polymer (such as polyacrylate or polyacrylamide), and optionally a protein hydrolysate. This composite material combines the advantages of each component to provide effective binding and dimensional stability while maintaining cleaning performance of hydratable salts.
Solution Approach 2:
The invention controls the molecular weight, composition ratios, and crosslinking degree of the polymer components to optimize dimensional stability. By adjusting parameters such as the degree of polymerization, crosslinking density, and component ratios, the formulation achieves stable solidification without excessive swelling while retaining cleaning effectiveness.
2Reliability
If phosphates and NTA are used as binding agents and hardness sequestrants, then solidification control and cleaning effectiveness are improved, but environmental regulations require their removal
Solution Approach 1:
The invention discards environmentally harmful phosphates and NTA from the formulation and replaces them with biodegradable alternatives. The polysaccharide-based binding agents and hardness sequestrants (such as citric acid, gluconic acid, or their salts) provide equivalent functional performance without the environmental persistence and toxicity issues of phosphates and NTA.
Solution Approach 2:
The invention uses biodegradable, environmentally friendly materials that break down naturally after use, replacing persistent synthetic chemicals. The polysaccharide and protein-based components are readily biodegradable, providing temporary binding and water softening functions during the cleaning process without long-term environmental impact.
3Adaptability or versatility
If multiple hydrate forms are used in sodium carbonate based detergents, then flexibility in formulation is improved, but hydration state shifts cause dimensional instability
Solution Approach 1:
The invention incorporates binding agents and stabilizers into the formulation before solidification occurs. These pre-added components (polysaccharides, synthetic polymers, and crosslinking agents) prepare the matrix to control water movement and hydrate formation, preventing subsequent hydration state shifts and dimensional changes during storage and use.
Solution Approach 2:
The invention uses the binding agent system to create a structural matrix that cushions against dimensional changes caused by hydration state transitions. The crosslinked polymer network and hydrocolloids absorb and distribute the volume changes that occur when hydratable salts transition between different hydrate forms, maintaining overall dimensional stability.
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 achieves dimensional stability, ensuring the solid detergent does not swell excessively, maintaining integrity and usability, and complies with environmental regulations by being phosphorous-free, suitable for various applications including warewashing and water treatment.
Implementation Method 1
a hydratable salt present in an amount of 40% or greater by weight of the solid detergent composition
Data Source
AI summary
A solid composition includes a polysaccharide hybrid polymer composition and a hydratable salt. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from approximately 5% to 90% by weight of the polysaccharide hybrid polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from approximately 10% to 75% by weight of the polysaccharide hybrid polymer composition.