Adhesive Component Segmentation for Premature Curing
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Solution Overview
Problem
Existing adhesive materials face challenges with premature activation and material handling issues when both liquid and solid components are combined prior to shipment, leading to waste and processing difficulties.
Innovation Solution
A method involving separate shipment and storage of liquid and solid adhesive components, with one component containing a curing agent and the other a curing agent accelerator, which are mixed just before application to prevent premature activation, allowing for robotic application and minimizing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If both liquid and solid components of the adhesive are combined prior to shipment, then the adhesive is ready for immediate use, but the adhesive is challenging to handle, leaves behind substantial residual material in shipping containers, and may be prone to premature activation or blocking
Solution Approach 1:
The adhesive system is divided into separate liquid and solid components that are shipped independently. The liquid component contains the liquid carrier and optional curing agent, while the solid component contains the polymer and optional accelerator. These components are mixed only at the point of application, resolving the contradiction between readiness and handling ease by maintaining separability during transport while achieving functionality upon mixing.
2Ease of manufacture
If both liquid and solid components of the adhesive are combined prior to shipment, then the adhesive is ready for immediate use, but the adhesive leaves behind substantial residual material in any shipping container if shipped in paste form
Solution Approach 1:
By segmenting the adhesive into separate liquid and solid components shipped in separate containers, the system eliminates the residual paste problem. Each component can be fully dispensed from its container without leaving behind hardened or blocked material, as the curing reaction only occurs after mixing at the application point.
Solution Approach 2:
The components are prepared and packaged separately in advance with all necessary ingredients already in place. The liquid component is pre-formulated with the liquid carrier and curing agent, while the solid component contains the polymer and accelerator. This preliminary preparation allows for complete dispensing without residual waste while maintaining stability during storage and transport.
3Ease of manufacture
If both liquid and solid components of the adhesive are combined prior to shipment, then the adhesive is ready for immediate use, but the adhesive may be prone to premature activation or blocking if shipped in pellet form
Solution Approach 1:
The adhesive system separates the curing agent and accelerator into different components. The liquid component contains the curing agent while the solid component contains the accelerator, preventing premature activation during storage and transport. The curing reaction only initiates when both components are mixed at the application point, eliminating the reliability issues associated with combined formulations.
Solution Approach 2:
The separate component structure acts as an intermediary barrier that prevents direct interaction between the curing agent and accelerator during storage. Each component can be stored and handled independently without risk of premature curing, and the mixing process serves as the controlled intermediary step that initiates the curing reaction only when needed.
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
This approach prevents premature activation, reduces waste, and facilitates efficient application of a homogeneous adhesive, suitable for various substrates, including metallic and polymeric materials, while enabling automated application and easy handling.
Implementation Method 1
The method further provides for heating at least the second component to a temperature above the softening temperature
Implementation Method 2
mixing the first and second component to define a generally homogeneous mixture
Implementation Method 3
forming an uncured activatable adhesive that upon cooling to room temperature is optionally generally dry to the touch
Data Source
AI summary
An improved approach toward the formation of an adhesive comprising a separated liquid component and solid component and application of the adhesive to a substrate immediately upon mixing the liquid and solid components.