Adhesive composition, rubber reinforcing material and articles
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Solution Overview
Problem
Existing adhesive compositions for tire cords, such as those using resorcinol-formaldehyde condensates, pose health and environmental risks due to the presence of harmful chemicals like formaldehyde and resorcinol.
Innovation Solution
A polyphenol-based naturally occurring acid, specifically tannic acid, is used to create an adhesive composition that replaces harmful RF condensates. This composition includes a naturally occurring acid, a nitrogen compound, a basic material, and latex, which are combined to form a condensate under basic conditions, eliminating the need for a separate preparation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If resorcinol-formaldehyde condensate adhesive is used to improve adhesive force between fiber and rubber, then adhesive performance is improved, but harmful factors to human health and environment increase
Solution Approach 1:
The patent changes the chemical composition parameters by replacing resorcinol-formaldehyde condensate with polyphenol-based naturally occurring extract. This substitution maintains the adhesive functionality while eliminating harmful formaldehyde and resorcinol, thus resolving the contradiction between adhesive performance and harmful factors.
Solution Approach 2:
The patent uses readily available naturally occurring extracts (such as tannic acid from plant materials) instead of synthetic resorcinol-formaldehyde condensate. These natural extracts provide the necessary adhesive properties without the toxic side effects, offering a safer alternative that is equally effective.
2Strength
If resorcinol-formaldehyde condensate adhesive is used to ensure adhesive performance, then adhesive force is maintained, but post-management and post-treatment costs increase
Solution Approach 1:
The patent employs naturally occurring extracts that are generally more environmentally friendly and easier to dispose of or treat compared to synthetic RF condensates. The natural origin of these extracts simplifies waste management and reduces the need for specialized post-treatment processes, thereby lowering post-management costs.
3Object-affected harmful factors
If polyphenol-based naturally occurring extract is used to reduce harmful factors, then environmental friendliness is improved, but adhesive force may be reduced
Solution Approach 1:
The patent optimizes the parameters of the naturally occurring extract by selecting specific polyphenol-based compounds (such as tannic acid) and adjusting their concentration, molecular weight, and chemical structure. These parameter adjustments ensure that the adhesive force achieved with natural extracts is equal to or greater than that of synthetic RF condensates, while maintaining environmental friendliness.
4Reliability
If traditional RF condensate adhesive is used to achieve reliable adhesion, then adhesive performance is ensured, but production process complexity increases
Solution Approach 1:
The patent uses naturally occurring extracts that can be directly applied without the need for complex condensation reactions required by RF adhesives. This simplifies the production process by eliminating the need for controlled formaldehyde addition and extended reaction times, thereby reducing production complexity while maintaining reliable adhesion.
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 adhesive composition provides adhesive force equal to or higher than that of prior art adhesives, while being environmentally friendly and less harmful to human health. It simplifies the production process and reduces post-management and post-treatment costs.
Implementation Method 1
a polyphenol-based naturally occurring acid, specifically tannic acid, is used to create an adhesive composition that replaces harmful RF condensates. This composition includes a naturally occurring acid, a nitrogen compound, a basic material, and latex, which are combined to form a condensate under basic conditions
Data Source
AI summary
The present application relates to an adhesive composition comprising at least naturally occurring acid, a nitrogen compound and a latex; and a rubber reinforcing material and an article comprising the same.