Liquid Crystal Polymer Fluidity via Melamine Flow Modifier
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Solution Overview
Problem
Existing methods for improving the fluidity of liquid crystal polymers during molding either require specialized equipment, are difficult to produce, or degrade the mechanical properties of the polymer, making them impractical for widespread use in electronic components.
Innovation Solution
Incorporating a small amount of a melamine compound along with inorganic or organic fillers into the liquid crystal polymer composition to enhance fluidity without compromising mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a liquid crystal polymer having a specific molecular weight is blended to improve fluidity, then fluidity during molding is improved, but the liquid crystal polymer having a specific molecular weight is not easily produced
Solution Approach 1:
The patent replaces the need for specially produced liquid crystal polymers with inexpensive, readily available conventional liquid crystal polymers combined with a small amount of melamine compound and filler, achieving the same fluidity improvement effect without the manufacturing complexity
Solution Approach 2:
The patent creates a composite material system consisting of liquid crystal polymer, melamine compound (0.01-2 parts by weight), and filler (1-200 parts by weight), where the combination of these materials achieves improved fluidity without requiring specialized production methods for the base polymer
2Ease of operation
If an oligomer of 4-hydroxybenzoic acid with specific flow temperature is included to improve fluidity, then fluidity during molding is improved, but the oligomer is not easily produced
Solution Approach 1:
The patent substitutes the difficult-to-produce oligomer of 4-hydroxybenzoic acid with commonly available melamine compound and filler materials, achieving comparable or superior fluidity improvement while eliminating the production difficulty
Solution Approach 2:
The patent changes the approach from modifying the base polymer's molecular weight or flow temperature to adding small amounts of melamine compound (0.01-2 parts by weight) that acts as a flow modifier, achieving fluidity control through additive rather than base material modification
3Ease of operation
If a vertical stirring thin-film evaporator is used to reduce acetic acid content and improve fluidity, then fluidity during molding is improved, but a special apparatus has to be used
Solution Approach 1:
The patent extracts the fluidity improvement function from the complex polymerization process and special evaporation equipment, achieving it instead through simple blending of melamine compound and filler with the liquid crystal polymer
Solution Approach 2:
The patent replaces expensive and complex special equipment (vertical stirring thin-film evaporator) with simple, inexpensive mixing and molding equipment, achieving the same fluidity improvement effect through material selection rather than equipment investment
4Ease of operation
If a phosphoric acid-based compound is added during production to improve fluidity, then fluidity during molding is improved, but the mechanical properties may significantly be degraded
Solution Approach 1:
The patent introduces melamine compound as an intermediary flow modifier that improves fluidity without the harmful side effects of phosphoric acid-based compounds, and combines it with filler to achieve synergistic effect that maintains both fluidity and mechanical properties
Solution Approach 2:
The patent creates a composite system where melamine compound (0.01-2 parts by weight) and filler (1-200 parts by weight) work together to improve fluidity while the filler also contributes to maintaining or enhancing mechanical properties, avoiding the mechanical property degradation caused by phosphoric acid-based compounds
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 melamine compound acts as a flow modifier, significantly improving the fluidity of the liquid crystal polymer during molding while maintaining its mechanical strength, making it suitable for downsizing and thickness reduction in electronic components.
Implementation Method 1
a melamine compound serves as a flow modifier by the inclusion of a small amount of a melamine compound together with an inorganic filler and/or an organic filler in a liquid crystal polymer
Data Source
AI summary
To provide a liquid crystal polymer composition whose fluidity during molding is improved without degrading the mechanical properties thereof. A liquid crystal polymer composition which contains 100 parts by weight of a liquid crystal polymer, 1 to 200 parts by weight of an inorganic filler and/or an organic filler, and 0.01 to 2 parts by weight of a melamine compound as a flow modifier.