Modified Polyolefin Resin Heat Resistance Cleaning
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Solution Overview
Problem
Modified polyolefin resins used in LiB soft pack laminates face challenges in balancing heat resistance and solution stability, particularly when used under high temperature conditions, and require improved cleaning properties within coating machines.
Innovation Solution
The modification of polyolefin resins with α,β-unsaturated carboxylic acids and specific amino alcohols under conditions that produce specific IR spectrum peaks, introducing amide bonds and hydroxy groups, enhances heat resistance, solution stability, and cleaning properties by increasing crosslinking density and affinity with cleaning solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the concurrent use ratio of resin having a high melting point is increased to enhance heat resistance, then heat resistance is improved, but solution stability decreases
Solution Approach 1:
The invention changes the chemical structure parameters of the polyolefin resin by introducing specific functional groups (carboxylic acid groups with 0.1-5 mass% and hydroxy groups with 0.1-3 mass%) to achieve both high heat resistance and good solution stability. This chemical modification allows the resin to maintain stability in solution while withstanding high temperatures.
Solution Approach 2:
The invention creates a composite functional structure within the polyolefin resin by combining multiple functional groups (carboxylic acid groups and hydroxy groups) in specific proportions. This composite approach enables the resin to simultaneously achieve heat resistance through crosslinking capability and solution stability through controlled polarity and compatibility.
2Ease of operation
If conventional modified polyolefin resin is used in coating machines, then coating function is achieved, but cleaning property deteriorates due to residual matters remaining unremoved
Solution Approach 1:
The invention modifies the surface energy parameters of the polyolefin resin by introducing polar functional groups (carboxylic acid and hydroxy groups). These groups increase the resin's affinity with polar cleaning solvents, enabling effective removal of residual matters from coating machines while maintaining coating performance.
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 modified polyolefin resins exhibit improved heat resistance, solution stability, and enhanced cleaning properties within coating machines, ensuring effective removal of residual materials and maintaining coating performance.
Implementation Method 1
The modification of polyolefin resins with α,β-unsaturated carboxylic acids and specific amino alcohols under conditions that produce specific IR spectrum peaks, introducing amide bonds
Implementation Method 2
enhances heat resistance, solution stability, and cleaning properties by increasing crosslinking density
Implementation Method 3
enhances heat resistance, solution stability, and cleaning properties by increasing crosslinking density and affinity with cleaning solvents
Data Source
AI summary
An object of the present invention is to provide a modified polyolefin resin that can enhance a cleaning property upon cleaning inside of a coating machine with a cleaning solvent including water, or to provide a modified polyolefin resin that is excellent in a balance between heat resistance and solution stability, in which the modified polyolefin resin is a polyolefin resin (I) that is modified with an α,β-unsaturated carboxylic acid or a derivative thereof (II) and with an amino alcohol having a primary or a secondary amino group (III).