Bio-based Nylon Elastomer Film Moisture Permeability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current bio-based elastomer films lack moisture permeability, hindering their application and understanding, and conventional petroleum-based nylon elastomers are still used for waterproof and moisture-permeable films, which is environmentally unsustainable.
Innovation Solution
A composition comprising 5%-95% bio-based elastomer material, 0-80% resin polymer, 0.01-90% inorganic powder or organic low molecular material, and 0-10% organic dispersant is used to create a bio-based nylon elastomer film with high moisture permeability, which can be formed into a film with specific thickness and processed for enhanced properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional petroleum-based nylon elastomer is used for waterproof and moisture-permeable films, then mechanical strength and moisture permeability are achieved, but environmental sustainability deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by using bio-based monomers (adipic acid from vegetable oils, hexamethylenediamine from renewable resources) to replace petroleum-based monomers, while maintaining the polyamide molecular structure that provides moisture permeability and mechanical strength. This parameter change achieves environmental sustainability without sacrificing functional performance.
Solution Approach 2:
The patent employs bio-based materials that are biodegradable and can be rapidly degraded in the environment, replacing conventional petroleum-based materials that persist for long periods. The bio-based nylon elastomer can be recycled for granulation and degraded rapidly, reducing environmental pollution from plastic waste accumulation.
2Object-affected harmful factors
If bio-based elastomer is used to replace petroleum-based materials, then environmental sustainability is improved, but moisture permeability deteriorates
Solution Approach 1:
The patent adjusts the molecular structure parameters of the bio-based elastomer by controlling the polymerization process and selecting specific monomer ratios to create a polyamide structure with appropriate crystallinity and amorphous regions. This enables moisture vapor transmission while maintaining the bio-based origin of the material.
Solution Approach 2:
The patent creates a composite film structure combining bio-based nylon elastomer with other bio-based polymers or additives to achieve both moisture permeability and environmental sustainability. The multi-component system allows optimization of both functional properties and ecological performance.
3Duration of action of stationary object
If bio-based elastomer film is prepared with high bio-based content, then environmental degradability is improved, but mechanical strength deteriorates
Solution Approach 1:
The patent optimizes the molecular weight, molecular weight distribution, and chain architecture parameters of the bio-based polyamide to achieve an balance between mechanical strength and biodegradability. By controlling polymerization conditions and monomer selection, the film maintains sufficient strength for practical applications while remaining environmentally degradable.
Solution Approach 2:
The patent uses a blend approach where the bio-based elastomer constitutes a significant portion (5-95% by weight) of the total composition, allowing the system to achieve adequate mechanical properties through the synergistic effect of multiple components while maintaining high bio-based content for environmental degradability.
4Reliability
If inorganic powder or organic low molecular material is added to enhance moisture permeability, then moisture permeability is improved, but formulation complexity deteriorates
Solution Approach 1:
The patent incorporates inorganic powder materials with porous structures (such as porous silica or alumina) into the bio-based elastomer matrix. These porous fillers create additional pathways for moisture vapor transmission, enhancing moisture permeability through physical structure rather than chemical complexity.
Solution Approach 2:
The patent uses organic low molecular weight materials as plasticizers or processing aids that facilitate the incorporation of inorganic powders and enhance moisture permeability. These intermediary substances improve the compatibility and dispersion of fillers while contributing to the overall moisture transmission performance without requiring complex multi-component formulations.
Data Source
AI summary
The present invention discloses a composition for preparing bio-based elastomer film with high moisture permeability, and a bio-based elastomer film and a laminate therefrom, wherein the composition comprises: 5%-95% bio-based elastomer material, 0-80% resin polymer, 0.01-90% inorganic powder material having a particle size within 100 μm and/or organic low molecular material having a molecular weight within 2000 Daltons, and 0-10% organic anti-blocking agent (dispersant). The bio-based elastomer film and laminate of the present invention have excellent moisture permeability and mechanical performance, which can be widely used in various fields including outdoor sporting goods, clothing, medical treatment, food packaging and shoe materials, and which are environmentally friendly and green products.