Composite material for elastomeric products, in particular vehicle tyres, and method for manufacturing same
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing processes for producing composite materials for vehicle tires face challenges in achieving adequate adhesion between strength members and rubberization, leading to inconsistent mechanical properties and environmental sustainability concerns.
Innovation Solution
A process involving the use of an aqueous dispersion for adhesive activation of textile strength members, combined with the selection of recycled and biobased polymers such as PET, PA6.6, and aramids, to produce vulcanizable composite materials that are more sustainable and environmentally benign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional petrochemical strength members are used, then mechanical properties and adhesion are maintained, but environmental sustainability and health safety deteriorate
Solution Approach 1:
The patent changes the material parameters by replacing petrochemical polymers with recycled and biobased polymers (such as recycled PET, biobased PA6, biobased aramids) while maintaining the required mechanical properties through careful selection and combination of these alternative materials
Solution Approach 2:
The patent utilizes recycled polymers from post-consumer or post-industrial waste streams, recovering materials that would otherwise be discarded and transforming them into functional strength members for elastomeric products
2Object-affected harmful factors
If natural fibers are used to replace petrochemical strength members, then sustainability improves, but mechanical properties and reproducibility deteriorate
Solution Approach 1:
The patent changes the material parameters by selecting specific recycled and biobased polymers with controlled physical and chemical properties, ensuring consistent mechanical performance through standardized material specifications and processing parameters
Solution Approach 2:
The patent employs composite material approaches by combining different recycled and biobased polymers with rubber matrices and adhesion promoters to achieve the desired mechanical properties and reliability that single natural fibers cannot provide
3Object-affected harmful factors
If aqueous dispersion free of resorcinol and formaldehyde is used, then environmental and health safety improves, but adhesion between strength members and rubberization deteriorates
Solution Approach 1:
The patent introduces alternative adhesion-promoting substances as intermediaries between the strength members and rubberization that do not rely on resorcinol or formaldehyde, such as other coupling agents or surface treatments that facilitate adequate bonding without harmful chemicals
Solution Approach 2:
The patent changes the chemical parameters of the aqueous dispersion by eliminating resorcinol and formaldehyde while adjusting concentrations of alternative adhesion promoters and optimizing dispersion composition to maintain adequate adhesion strength
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 process achieves optimized service life and mechanical properties for composite materials, reducing dependence on fossil raw materials and improving environmental and health safety, while maintaining high performance suitable for vehicle tires.
Implementation Method 1
treating the textile strength member with an aqueous dispersion for adhesive activation of the textile strength member
Data Source
AI summary
A process for producing a vulcanizable composite material, including the steps of: a) producing or providing a textile strength member, b) treating the textile strength member with an aqueous dispersion for adhesive activation of the textile strength member and to obtain an adhesion-activated textile strength member, and c) introducing the adhesion-activated textile strength member into a crosslinkable rubberization mixture to obtain the vulcanizable composite material, wherein the aqueous dispersion is essentially free of free resorcinol and resorcinol precondensates, especially resorcinol-formaldehyde precondensates, and is free of free formaldehyde and formaldehyde-releasing substances, wherein the textile strength member in step a) has filaments, wherein the filaments contain one or more materials selected from the group consisting of a1) recycled polymers and a2) biobased polymers.