Kenaf Fiber Reinforced Rubber Belt Silane Coupling
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Solution Overview
Problem
Existing rubber compositions for power transmission belts lack a practical solution using synthetic rubber reinforced with kenaf fiber, which is environmentally friendly and cost-effective.
Innovation Solution
A power transmission belt with an elastomeric composition that includes kenaf fiber, preferably bast fiber, treated with a compatibilizer to improve adhesion and dispersion within the rubber matrix, and formulated into a masterbatch for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If kenaf fiber is used as reinforcement in rubber composition, then cost-effectiveness and environmental friendliness are improved, but adhesion and dispersibility between fiber and elastomer deteriorate
Solution Approach 1:
A silane coupling agent (gamma-methacryloxypropyltrimethoxysilane) is used as an intermediary substance to improve adhesion between kenaf fiber and elastomer matrix. The coupling agent chemically bonds to both the fiber surface and the rubber matrix, creating a strong interface that resolves the adhesion problem while maintaining the cost benefits of using kenaf fiber
Solution Approach 2:
The surface chemistry of kenaf fiber is modified through silane treatment, changing its physical and chemical parameters to be more compatible with the elastomer matrix. This surface modification improves dispersibility and adhesion without affecting the inherent cost advantages of using natural kenaf fiber instead of synthetic reinforcements
2Object-affected harmful factors
If kenaf fiber is used as reinforcement in rubber composition, then environmental friendliness is improved, but processing difficulty increases due to poor dispersibility
Solution Approach 1:
The silane coupling agent acts as a mediator that facilitates uniform dispersion of kenaf fiber in the rubber matrix during processing. By improving interfacial compatibility, the coupling agent reduces processing difficulties such as fiber agglomeration and uneven distribution, making the manufacturing process more manageable while retaining the environmental benefits of kenaf fiber
Solution Approach 2:
Surface treatment of kenaf fiber with silane modifies its physical and chemical parameters, including surface energy and hydrophobicity, to enhance compatibility with the hydrophobic elastomer matrix. This parameter modification improves dispersibility during mixing and processing operations
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 use of kenaf fiber in the elastomeric composition provides a high-value rubber compound with improved modulus and cost-effectiveness, comparable to or better than more expensive synthetic fibers, while offering improved crack resistance and durability.
Implementation Method 1
a silane coupling agent, or the like, to improve adhesion between the fiber and elastomer matrix
Implementation Method 2
The elastomeric belt body may include one or more vulcanized rubber composition
Data Source
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AI summary
An elastomeric composition and a power transmission belt based elastomeric composition, wherein the composition includes kenaf fiber.