Protein-Starch Adhesive Viscosity and Bond Strength
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Solution Overview
Problem
Current adhesives and binders face challenges in balancing ease of use, cost-effectiveness, and binding ability, with starch-based adhesives offering low viscosity and poor binding strength, while protein-based adhesives are expensive and viscous, making them difficult to work with.
Innovation Solution
A composition comprising a combination of plant proteins and starches, where the protein-starch ratio can be adjusted to enhance viscosity and bonding strength, allowing for the creation of adhesives and binders with improved performance across various substrates and conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If starch-based adhesives are used, then viscosity is low and ease of use is improved, but binding strength deteriorates
Solution Approach 1:
The patent combines starch and protein to create a composite adhesive formulation. The starch component provides low viscosity and ease of application, while the protein component contributes binding strength. This composite approach allows the adhesive to simultaneously achieve good workability and strong bonding performance, resolving the contradiction between ease of use and binding strength.
2Strength
If protein-based adhesives are used, then binding ability is improved, but viscosity increases and ease of operation deteriorates
Solution Approach 1:
By formulating a composite adhesive containing both protein and starch, the patent leverages the high binding ability of protein while using starch to maintain lower viscosity. The starch acts as a viscosity modifier that improves flow and application characteristics without significantly compromising the binding performance provided by the protein component.
3Ease of operation
If starch dextrins are used, then ease of use is improved, but dry binding strength deteriorates
Solution Approach 1:
The patent creates a composite system where starch dextrin provides ease of use and good wet adhesion, while protein supplementation enhances dry binding strength. The protein component compensates for the relatively low dry strength of starch dextrins alone, creating a synergistic effect where both materials contribute their strengths.
4Strength
If proteins are used to replace urea/formaldehyde resins, then binding ability is maintained, but viscosity increases and productivity deteriorates
Solution Approach 1:
The patent formulates a composite adhesive combining protein with starch, where the starch component reduces overall viscosity and improves flow characteristics. This allows the protein-based formulation to maintain its superior binding ability while achieving better rheological properties for faster application and processing, thereby improving productivity in plywood manufacturing.
Data Source
AI summary
The present disclosure relates to protein-starch compositions. The disclosure also relates to processes for preparing the protein-starch compositions. Further, the disclosure relates to uses of the protein-starch compositions in the preparation of adhesives or binders. Further, the disclosure relates to adhesive formulations that include protein-starch containing compositions and to paper products resulting from the processes herein.