Bio-based Block Copolymer TPE for Sustainable Manufacturing
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Solution Overview
Problem
Conventional thermoplastic elastomers (TPEs) rely on fossil-based raw materials, leading to environmental pollution and greenhouse gas emissions, with limited renewable alternatives that match the performance of fossil-origin TPEs in terms of mechanical properties and ecological impact.
Innovation Solution
Development of a block copolymer using ethylene oxide and/or propylene oxide monomers containing 14C, with polyether blocks derived from renewable biomass sources like PEG and PPG, combined with renewable rigid blocks such as polyamide, polyurethane, or polyester blocks, to create a thermoplastic elastomer with high biocarbon content and improved environmental sustainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fossil-based raw materials are used for TPE production, then mechanical properties and chemical resistance are maintained, but environmental impact increases and renewable resource utilization decreases
Solution Approach 1:
The patent changes the chemical composition parameters of the raw materials by replacing fossil-based polyols with bio-based polyols derived from renewable resources. This substitution maintains the functional properties required for TPE performance while fundamentally altering the environmental impact profile by utilizing biodegradable, renewable feedstocks instead of depleting fossil reserves
Solution Approach 2:
The patent creates composite material systems combining bio-based polyols with conventional TPE components (polyesters, polyamides, polyurethanes). This composite approach allows the renewable polyol component to provide environmental benefits while the overall composite structure maintains the mechanical properties and chemical resistance required for engineering applications
2Reliability
If renewable raw materials are used for TPE synthesis, then environmental sustainability improves, but mechanical properties and chemical resistance may be compromised
Solution Approach 1:
The patent modifies the molecular structure parameters of the polyol component by selecting bio-based alternatives with specific functional group configurations. These parameter changes ensure that the renewable polyols maintain the necessary reactivity, molecular weight, and structural characteristics to form TPEs with equivalent mechanical properties and chemical resistance to fossil-based counterparts
3Productivity
If conventional cracking processes are used for raw material production, then manufacturing efficiency is maintained, but energy consumption increases and greenhouse gas emissions rise
Solution Approach 1:
The patent extracts the polyol component from the conventional fossil-based production pathway and replaces it with bio-based polyols obtained through fermentation or extraction from renewable resources. This extraction and substitution eliminates the need for energy-intensive steam cracking and catalytic cracking processes while maintaining the ability to produce the required polyol quantities for TPE manufacturing
Solution Approach 2:
The patent substitutes the mechanical/thermal cracking system with a biological production system. Instead of using high-temperature steam cracking to break down petroleum fractions, the invention employs biological processes (fermentation, enzymatic conversion) to produce polyols from renewable feedstocks, thereby replacing an energy-intensive mechanical system with a lower-energy biological system
Data Source
AI summary
The invention relates to a block copolymer derived from at least one ethylene oxide and/or propylene oxide monomer containing 14C.The present invention also relates to a method for preparing such a block copolymer.