Aqueous Reinforcing Sheet for Toothed Belt Tooth Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional toothed belts with fiber-reinforced tooth sheets suffer from poor integration with the belt parts, leading to chipping and fracture issues during extended use, and their manufacturing processes often involve environmentally harmful organic solvents.
Innovation Solution
A reinforcing-sheet for toothed belts is developed, comprising a fiber sheet coated with an aqueous treatment agent containing rubber latex and a vulcanizing agent, which enhances adhesion and integration with the rubber matrix, while using an aqueous solvent to reduce environmental impact and improve manufacturing ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional treatment agents using organic solvents are used to process tooth sheets, then adhesion of the belt body with rubber matrix is enhanced, but environmental protection during manufacturing is compromised and integration with belt parts remains poor
Solution Approach 1:
The patent changes the solvent parameter from organic to aqueous, replacing harmful organic solvents with water-based solutions. This parameter change maintains the treatment effectiveness while eliminating environmental harm, and the aqueous medium enables better penetration and integration with the rubber matrix during vulcanization
Solution Approach 2:
The patent creates a composite treatment agent system combining aqueous rubber latex emulsion with specific additives (silane coupling agents, vulcanizing agents). This composite formulation achieves both environmental compatibility and superior integration with belt parts through synergistic material interactions
2Strength
If conventional treatment agents are used on tooth sheets, then initial adhesion is high, but fracture resistance after extended use deteriorates
Solution Approach 1:
The patent applies treatment agents to the tooth sheet surface before final assembly and vulcanization. This preliminary treatment prepares the surface with enhanced adhesion properties and creates a bridge for better integration, preventing future fracture issues by establishing strong bonds in advance
Solution Approach 2:
The patent uses silane coupling agents and rubber latex emulsion as intermediary substances between the tooth sheet fibers and the rubber matrix. These intermediaries create chemical bridges that strengthen the interface, improving both initial adhesion and long-term fracture resistance through sustained bond strength
3Ease of manufacture
If aqueous treatment agent with vulcanizing agent is applied to fiber sheet, then manufacturing simplicity and environmental friendliness are improved, but coating film formation requires precise control
Solution Approach 1:
The patent controls the coating film formation by adjusting parameters of the aqueous treatment agent including pH value, solid content concentration, and drying temperature. These parameter controls ensure proper film formation while maintaining the simplicity of the aqueous application process
Solution Approach 2:
The patent integrates the coating film formation process with the subsequent vulcanization process. The continuous action from coating through drying to vulcanization ensures that the treatment agent properly forms a film and then cures uniformly, maintaining manufacturing simplicity while achieving precise control through process integration
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 solution results in toothed belts with improved heat resistance, bending fatigue resistance, and reduced fracture rates, along with a more environmentally friendly manufacturing process.
Implementation Method 1
a coating film formed on the fiber sheet by drying the fiber sheet on which an aqueous treatment agent containing a rubber latex and a vulcanizing agent as its main components is applied
Implementation Method 2
enhancing adhesion of the belt body with its rubber matrix
Implementation Method 3
vulcanizing the first rubber and a second rubber at the same time while adhering a rubber composition
Data Source
AI summary
A method of manufacturing of the present invention is a method of manufacturing a toothed belt (10) having a belt part (13) and a tooth part (14) sticking out of the belt part (13). This method of manufacturing includes a first step of forming a reinforcing-sheet (12) including a fiber sheet and a coating film formed on the fiber sheet by drying the fiber sheet on which an aqueous treatment agent containing a first rubber latex and a first vulcanizing agent is applied, and a second step of reinforcing a surface of the tooth part (14) with the reinforcing-sheet (12) by vulcanizing the first rubber and a second rubber at the same time while adhering a rubber composition, which is a material for the tooth part (14), including the second rubber and a second vulcanizing agent to the reinforcing-sheet (12). The aqueous treatment agent contains the vulcanizing agent in the range of 10 parts by weight to 100 parts by weight for 100 parts by weight of the first rubber.