Urethane Poly(meth)acrylate Crosslinking Aid for Ethylene Copolymer Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sealing materials using ethylene copolymers for electronic modules, particularly solar cells, do not adequately address insulation properties as measured by volume resistivity values.
Innovation Solution
A crosslinking resin composition comprising an ethylene copolymer and a urethane poly(meth)acrylate as a crosslinking aid, with specific ratios and combinations of additives, is used to enhance the insulation properties of the crosslinked product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional crosslinking aids (such as TAIC or polyfunctional (meth)acrylates) are used in ethylene copolymer sealing materials, then crosslinking performance is achieved, but insulation properties (volume resistivity) are insufficient
Solution Approach 1:
The patent changes the chemical structure parameters of the crosslinking aid by using urethane poly(meth)acrylate with specific molecular weight (1000-10000) and functional groups, which fundamentally alters the crosslinking mechanism to achieve both good crosslinking performance and excellent insulation properties simultaneously
Solution Approach 2:
The patent creates a composite system by combining ethylene copolymer base material with urethane poly(meth)acrylate crosslinking aid and organic peroxide crosslinking agent, where the unique molecular structure of the urethane poly(meth)acrylate provides both crosslinking functionality and insulation performance
2Strength
If the amount of crosslinking aid is increased to improve crosslinking performance, then crosslinking density increases, but insulation properties deteriorate due to excessive additive content
Solution Approach 1:
The patent optimizes the用量 parameter of urethane poly(meth)acrylate to 0.1-3.0 parts by weight per 100 parts of ethylene copolymer, which achieves sufficient crosslinking density while maintaining excellent insulation properties due to the high efficiency of the urethane poly(meth)acrylate crosslinking mechanism
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 significantly improved insulation properties, as evidenced by higher volume resistivity values, making it suitable for use in solar cells and other electronic material modules.
Implementation Method 1
a resin composition comprising an ethylene copolymer and a crosslinking agent
Implementation Method 2
an organic peroxide as a crosslinking agent
Implementation Method 3
a multifunctional monomer having four or more acryloyl and/or methacryloyl groups in total
Implementation Method 4
a urethane poly(meth)acrylate as a crosslinking aid
Data Source
AI summary
The present invention provides a crosslinking resin composition comprising an ethylene copolymer and a crosslinking aid, in which the crosslinked product of the resin composition has excellent insulation properties (volume resistivity value). The present invention provides a heat-crosslinking resin composition comprising an ethylene copolymer, a crosslinking agent and a urethane poly(meth)acrylate as a crosslinking aid, and (2) a radiation-crosslinking resin composition comprising an ethylene copolymer and a urethane poly(meth)acrylate as a crosslinking aid.