Room Temperature Silicone Adhesion via Peroxide Catalyst and Vacuum
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional silicone adhesives require high temperature and pressure for curing, necessitating the use of platinum-containing primers and furnaces or autoclaves, which can be inefficient and damage other materials like epoxy or urethane components.
Innovation Solution
A method using a platinum catalyzed silane primer with a fugitive inhibitor and a room temperature-stable silicone film adhesive catalyst, applied under vacuum and pressure to adhere structures without the need for additional heat, allowing for efficient bonding at room temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If platinum-containing primers and high temperature pressure curing are used, then adhesion strength is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent changes the curing parameters from high temperature (300-350°F) and high pressure to room temperature and atmospheric pressure by using a peroxide catalyst instead of platinum catalyst, eliminating the need for specialized furnaces or autoclaves while maintaining adhesion strength
Solution Approach 2:
The patent uses a disposable peroxide catalyst that provides sufficient catalytic activity at room temperature without requiring expensive platinum catalysts and complex curing equipment, reducing both material cost and device complexity
2Reliability
If high temperature curing is used, then adhesive curing is achieved, but sensitive materials are damaged
Solution Approach 1:
The patent changes the curing temperature parameter from high temperature (300-350°F) to room temperature by switching to a peroxide catalyst system, achieving complete adhesive curing without exposing sensitive materials like epoxy or urethane to damaging heat
Solution Approach 2:
The peroxide catalyst acts as an intermediary that enables the silicone adhesive to cure at room temperature through a different chemical mechanism, avoiding the need for high temperature while still achieving reliable bond formation
3Strength
If platinum catalyzed silane primer is used, then adhesion is improved, but catalyst stability at room temperature deteriorates
Solution Approach 1:
The patent uses a peroxide catalyst that is stable at room temperature and does not require the expensive platinum catalyst, providing sufficient catalytic activity for curing without the stability issues associated with platinum-based systems
Solution Approach 2:
The patent changes the catalyst type from platinum to peroxide, which fundamentally alters the stability characteristics to allow room temperature storage and handling while maintaining curing capability
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
Enables efficient adhesion of structures using a silicone adhesive system at room temperature, eliminating the need for high-temperature curing and protecting sensitive materials from excessive heat.
Implementation Method 1
the catalyst may be selected from a group consisting of peroxide and platinum
Implementation Method 2
a platinum catalyzed silane primer specially formulated for use with platinum catalyzed or peroxide catalyzed adhesive systems
Implementation Method 3
The period of time includes a sufficient time to remove the primer fugitive inhibitor so as to permit the first and second pre-adhered surfaces to be adhered to one another through the curing of the film adhesive
Data Source
AI summary
A method of adhering a first structure to a second structure using a primer, containing a primer fugitive inhibitor, and a film adhesive by removing the primer fugitive inhibitor under vacuum at room temperature conditions.