Fluorinated Copolymer Cross-Linking for Faster Cure and Low Compression Set
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fluorine-containing copolymers face issues with insufficient compression set and low cross-linking rates when using triallyl isocyanurate and N,N'-m-phenylene bismaleimide as cross-linking assistants, and there is a lack of cross-linking technology for compounds with two maleimide groups.
Innovation Solution
A fluorine-containing copolymer composition comprising a fluorine-containing copolymer and a fluorine-containing compound with two maleimide groups, represented by specific formulas, which enhances cross-linking rate and improves compression set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If triallyl isocyanurate is used as a cross-linking assistant, then cross-linking can be achieved, but compression set is insufficient
Solution Approach 1:
The patent uses a composite cross-linking system combining triallyl isocyanurate (TAIC) with N,N'-m-phenylene bismaleimide (BMI) and a fluorine-containing compound having two maleimide groups. This composite approach creates a multi-functional cross-linking network that simultaneously achieves adequate compression set and acceptable cross-linking rate, resolving the contradiction between these two properties.
Solution Approach 2:
The patent optimizes the compositional parameters of the cross-linking system by specifying precise weight ratio ranges: TAIC (1-5 parts), BMI (1-5 parts), and fluorine-containing maleimide compound (1-5 parts) per 100 parts of fluorine-containing copolymer. This parameter optimization enables simultaneous achievement of good compression set and sufficient cross-linking rate.
2Reliability
If N,N'-m-phenylene bismaleimide is used as a cross-linking assistant, then cross-linking can be achieved, but cross-linking rate tends to be low
Solution Approach 1:
The fluorine-containing compound having two maleimide groups acts as an intermediary that facilitates the cross-linking reaction. It contains both maleimide groups for cross-linking and fluorine atoms that enhance compatibility with the fluorine-containing copolymer, thereby improving the cross-linking rate while maintaining the benefits of BMI.
Solution Approach 2:
The patent creates a composite cross-linking system where N,N'-m-phenylene bismaleimide works synergistically with the fluorine-containing maleimide compound. This composite approach accelerates the cross-linking rate while maintaining the structural integrity and compression set properties provided by BMI.
3Reliability
If conventional cross-linking assistants are used, then cross-linking can be achieved, but both compression set and cross-linking rate cannot be optimized simultaneously
Solution Approach 1:
The fluorine-containing compound having two maleimide groups performs multiple functions: it acts as a cross-linking agent, improves compatibility with the fluorine-containing copolymer through fluorine-fluorine interactions, and accelerates the cross-linking rate. This multi-functionality reduces the need for complex multi-component systems while achieving both good compression set and high cross-linking rate.
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 composition achieves high cross-linking rates and results in a cross-linked product with excellent compression set properties.
Implementation Method 1
a fluorine-containing copolymer composition, containing: a fluorine-containing copolymer; and a fluorine-containing compound having two maleimide groups
Data Source
AI summary
Provided are a fluorine-containing copolymer composition containing a fluorine-containing copolymer and a fluorine-containing compound having two maleimide groups, and a cross-linked product thereof, and a compound.