Polyurethane Adhesive Composition With Polyether Carbonate Polyol
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Solution Overview
Problem
Conventional polyurethane adhesives used in the automobile industry rely on petroleum-based materials, lacking a low carbonization synthesis method, which hinders the development of carbon-reduced polyurethane adhesives.
Innovation Solution
A polyurethane adhesive composition is developed using a polyether carbonate polyol derived from polymerizing polyether polyol, carbon dioxide, and propylene oxide, combined with an isocyanate compound and an ether-based compound containing an epoxide functional group, to achieve a carbon reduction effect while maintaining excellent adhesive performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If petroleum-based polyols are used to manufacture conventional polyurethane adhesives, then adhesive performance is achieved, but carbon emissions increase and low carbonization cannot be implemented
Solution Approach 1:
The patent changes the chemical composition parameters by replacing petroleum-based polyols with bio-based polyols containing specific functional groups (carboxyl, hydroxyl, or amine groups). This parameter change enables carbon reduction while maintaining adhesive performance through controlled chemical reactions with polyisocyanates
Solution Approach 2:
The patent creates a composite adhesive system by combining bio-based polyols with specific polyisocyanates and optional additives. This composite approach allows the formulation of low-carbon adhesives that achieve both environmental benefits and reliable bonding performance through synergistic material interactions
2Object-generated harmful factors
If low carbonization synthesis method is adopted, then carbon reduction is achieved, but manufacturing complexity increases due to lack of established processes
Solution Approach 1:
The patent segments the adhesive formulation into distinct components: bio-based polyols with specific functional groups, polyisocyanates, and optional additives. This segmentation enables modular manufacturing where each component can be produced and stored separately, then combined in controlled ratios, simplifying the overall manufacturing process
Solution Approach 2:
The patent establishes specific parameter ranges for the bio-based polyols (containing carboxyl, hydroxyl, or amine groups) and their reaction ratios with polyisocyanates. By defining these parameters, the patent transforms complex low-carbonization synthesis into a controllable manufacturing process with standardized procedures
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 exhibits superior adhesive performance with reduced carbon emissions, outperforming petroleum-based counterparts in bonding strength and durability.
Implementation Method 1
Polyurethane is a polymer compound having a plurality of urethane bonds (—NHCOO—) produced by the combination of a polyol having two or more alcohol groups (—OH) and a polyisocyanate having two or more isocyanate groups (—NCO) in the molecule
Data Source
AI summary
Disclosed are a polyurethane adhesive composition having excellent adhesive performance and a method of preparing the composition. The polyurethane adhesive composition includes an ether-based compound containing an epoxide functional group a polyether carbonate polyol containing a carbonate bond so as to implement a carbon reduction effect.The polyurethane adhesive composition includes a admixture including (i) a polyether carbonate polyol containing a carbonate bond and (ii) an isocyanate compound, and an ether-based compound containing an epoxide functional group.