Yeast Adhesive Formulation for Fast Drying and Water Resistance
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Solution Overview
Problem
Existing adhesives are often costly, environmentally unsustainable, and pose risks to human and animal safety, while conventional adhesive formulations lack improved binding strength, quick drying times, and water resistance.
Innovation Solution
Formulations comprising yeast, carboxylic acid, and solvent, with specific ratios and solvent compositions, including water and organic solvents like methanol, ethanol, or isopropanol, are developed to enhance binding strength and water resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adhesive formulations are used, then cost-effectiveness is reduced and environmental sustainability is poor, but binding strength and water resistance are achieved
Solution Approach 1:
The patent changes the chemical parameters of the adhesive formulation by using yeast-derived proteins combined with specific cross-linking agents (glutaraldehyde or transglutaminase) to achieve both environmental sustainability and adequate binding strength. This parameter change allows the adhesive to be eco-friendly while maintaining functional performance for bonding paper and cardboard.
Solution Approach 2:
The invention creates a composite adhesive system combining yeast protein extract with cross-linking chemicals (glutaraldehyde or transglutaminase enzyme). This composite approach leverages the biodegradable nature of yeast proteins while using the cross-linking agents to provide structural integrity and water resistance, thus achieving both sustainability and manufacturing effectiveness.
2Loss of time
If conventional adhesive formulations are used, then binding strength is achieved, but drying time is prolonged
Solution Approach 1:
The patent utilizes the phase transition properties of water in the adhesive formulation. By controlling the water content and using cross-linking reactions that proceed efficiently in aqueous environments, the adhesive achieves rapid drying through evaporation while the cross-linked yeast protein matrix maintains binding strength. The cross-linking process occurs during the drying phase transition, locking the bonded structure in place.
3Reliability
If conventional adhesive formulations are used, then water resistance is achieved, but environmental sustainability is poor
Solution Approach 1:
The patent converts the typically harmful effect of cross-linking chemicals into a beneficial feature by using biodegradable yeast proteins as the base matrix. The cross-linking agents (glutaraldehyde or transglutaminase) provide water resistance, while the yeast protein foundation ensures environmental sustainability through biodegradability. This approach transforms a potentially harmful chemical system into an eco-friendly adhesive that maintains water resistance.
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 formulations provide sustainable, safer adhesives with improved binding strength and quicker drying times compared to conventional adhesives, utilizing readily available materials.
Implementation Method 1
Chemical cross-linking with glutaric aldehyde and biological cross-linking by enzyme transglutaminase improves the moisture resistance of the adhesive compositions
Implementation Method 2
adhesives can be made that are relatively cheap, that are relatively environmentally sustainable, and/or that are relatively safe to humans and animals exposed to such
Data Source
AI summary
Provided herein are formulations and methods for adhering substrates. The formulations comprise yeast; carboxylic acid; and solvent.