Trans-polyoctenamer-graphene composite high filler content
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Solution Overview
Problem
Conventional methods struggle to achieve high filler content in polyoctenamer-based materials due to their low viscosity, limiting their use in filled mixtures, especially with graphene materials which have poor handling properties and generate dust, affecting environmental safety and handling efficiency.
Innovation Solution
A process involving the dissolution of trans-polyoctenamer in an organic solvent, introduction of graphene material with energy to form a reaction solution, followed by precipitation and drying, or subjecting trans-polyoctenamer to ring opening metathesis polymerization with tungsten, ruthenium, or molybdenum catalysts, to produce a trans-polyoctenamer-graphene composite material with exceptionally high filler content and improved dispersion quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional compounding methods are used to incorporate graphene material into polyoctenamer, then the processing is simple, but the filler content is limited to maximum 75% due to low viscosity and poor handling properties
Solution Approach 1:
The patent changes the physical state of polyoctenamer from viscous melt to low-viscosity solution by dissolving it in organic solvents. This parameter change enables much higher filler contents (up to 99.9% graphene) to be incorporated while maintaining good dispersion quality, overcoming the limitation of conventional compounding methods.
Solution Approach 2:
The patent introduces organic solvents as intermediaries to facilitate the incorporation of graphene material. The solvent acts as a medium that allows graphene to be evenly distributed in the polyoctenamer system at high concentrations, solving the handling and dispersion problems associated with high filler contents.
2Quantity of substance
If high filler content is achieved in polyoctenamer mixtures, then the material properties are improved, but dust generation increases affecting environmental safety and handling
Solution Approach 1:
The patent uses liquid solvent systems instead of dry powder handling. By incorporating graphene into polyoctenamer solutions, the material remains in a liquid or paste state during processing, eliminating dust generation entirely while enabling high filler contents up to 99.9%.
3Ease of operation
If polyoctenamer is used as base polymer for filled mixtures, then the low viscosity enables easy processing, but the maximum achievable filler content is limited to 75%
Solution Approach 1:
The patent exploits the low viscosity of polyoctenamer in solution form to achieve extreme filler loadings. By maintaining the system in solution form during mixing and only removing the solvent after incorporation, the patent achieves up to 99.9% filler content while utilizing the inherent ease of processing of low-viscosity systems.
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
This process allows for the attainment of high filler contents (15% to 99.9% by weight) with reduced dust generation and excellent dispersion quality, overcoming the limitations of traditional compounding methods and enabling the use of polyoctenamer-based materials in various technical applications.
Implementation Method 1
dissolving trans-polyoctenamer in at least one organic solvent to obtain a polymer solution
Implementation Method 2
introducing graphene material into this polymer solution while introducing power to obtain a trans-polyoctenamer-graphene reaction solution
Implementation Method 3
precipitating this reaction solution in at least one further solvent or removing the solvent(s) employed in step a by drying the reaction solution
Implementation Method 4
removing the solvent(s) employed in step a by drying the reaction solution
Implementation Method 5
subjecting trans-polyoctenamer to a ring opening metathesis polymerization and subsequently or simultaneously f) adding graphene material and at least one solvent and at least one catalyst based on tungsten, ruthenium and/or molybdenum
Data Source
AI summary
A process can be used for production of trans-polyoctenamer-graphene composite material having a high filler content, from a trans-polyoctenamer and graphene material. The highly filled trans-polyoctenamer-graphene composite material is useful, for example, in the automotive sector, in heat exchangers, in housings, encapsulations, plain bearings, in 3-D printing heads for heat removal, injection moulded parts, electronics applications, hose systems, membranes, fuel cells, cable systems, indoor and sports apparel, EM protection, and orthopaedics.