Adhesive Kit with Elastomer for Rapid Room Temperature Curing
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Solution Overview
Problem
Existing adhesion methods using two-component adhesive agents require complex preparation steps, have slow curing speeds, and result in low adhesive strength and toughness, especially when not cured at room temperature in a short time.
Innovation Solution
An adhesive kit comprising an adhesive layer with epoxy resin and elastomer, where the elastomer is dispersed as fine particles or block polymers, allowing for rapid curing at room temperature with a curing agent liquid composition, achieving high adhesive strength and toughness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a two-component adhesive agent is used requiring weighing and mixing of main agent and curing agent, then adhesive strength can be achieved, but the process becomes complicated and time-consuming
Solution Approach 1:
The patent combines the main agent (adhesive layer containing epoxy resin and elastomer) and curing agent (liquid composition) into a single adhesive sheet structure where both components are pre-integrated. This eliminates the need for separate weighing and mixing operations while maintaining the two-component chemical reaction system that provides strong adhesion.
Solution Approach 2:
The adhesive layer and curing agent layer are prepared in advance within the adhesive sheet structure, with the curing agent pre-positioned on the back surface or within the sheet. This preliminary preparation eliminates the need for on-site mixing and allows immediate application, reducing process complexity and preparation time.
2Strength
If traditional adhesive methods are used, then adhesion can be achieved, but curing speed is slow and workability is poor
Solution Approach 1:
The patent modifies the chemical parameters of the adhesive system by selecting specific epoxy resin types and curing agent compositions that enable rapid curing at room temperature. The curing agent liquid composition is formulated to react quickly with the epoxy resin without requiring elevated temperatures, thereby increasing curing speed and improving workability.
3Strength
If adhesive strength and toughness are improved, then bonding performance increases, but curing time extends and room temperature curing becomes difficult
Solution Approach 1:
The patent creates a composite adhesive system combining epoxy resin with specific curing agents in a layered sheet structure. This composite formulation achieves both high adhesive strength and fast room-temperature curing by optimizing the chemical compatibility and reactivity between components, allowing simultaneous achievement of durability and rapid processing.
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 kit simplifies the adhesion process, enables rapid curing at room temperature, and achieves excellent adhesive strength and toughness, overcoming the limitations of existing methods.
Implementation Method 1
a curing agent liquid composition capable of curing the adhesive layer by contact and a reaction with the adhesive layer
Data Source
AI summary
An adhesive kit includes: an adhesive layer containing an epoxy resin and an elastomer; and a curing agent liquid composition capable of curing the adhesive layer by contact and a reaction with the adhesive layer, in which the adhesive layer contains 1 mass % to 30 mass % of the elastomer.