Fluororesin Composition With Compatibilizer for Agglomeration Control
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Solution Overview
Problem
Increasing the proportion of fluororesin in compositions with liquid crystal polymers leads to agglomeration, resulting in strands with poor appearance.
Innovation Solution
A composition comprising a fluororesin A and a resin B with a melt flow rate of 30 g/10 min or higher at a melting point + 12°C, where at least one of the resins contains a group (I) that can form a ring structure, enhancing compatibility and suppressing agglomeration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the proportion of fluororesin is increased, then the fluororesin content in the composition is improved, but the compatibility between liquid crystal polymer and fluororesin deteriorates, leading to agglomeration
Solution Approach 1:
A compatibilizer containing a liquid crystal polymer and a fluororesin is introduced as an intermediary substance to improve compatibility between the liquid crystal polymer and fluororesin. The compatibilizer has a specific structure with a liquid crystal polymer portion and a fluororesin portion that can interact with both components, acting as a bridge to prevent agglomeration even when fluororesin content is increased to 10% by volume or more.
2Quantity of substance
If the proportion of fluororesin is increased, then the fluororesin content in the composition is improved, but the appearance of strands deteriorates due to agglomeration
Solution Approach 1:
The compatibilizer acts as a mediator that prevents fluororesin agglomeration by providing compatible interaction interfaces. This maintains uniform dispersion of fluororesin particles in the composition, ensuring good appearance of extruded strands even when fluororesin content is increased to 10% by volume or more.
3Quantity of substance
If the proportion of fluororesin is increased, then the fluororesin content in the composition is improved, but the dispersion of fluororesin deteriorates
Solution Approach 1:
The compatibilizer with specific structural features (liquid crystal polymer portion and fluororesin portion) serves as an intermediary that enhances dispersion of fluororesin in the composition. The fluororesin portion of the compatibilizer interacts with fluororesin particles while the liquid crystal polymer portion interacts with the continuous phase, preventing aggregation and maintaining uniform dispersion even at high fluororesin contents of 10% by volume or more.
Data Source
AI summary
The disclosure aims to provide a composition capable of suppressing fluororesin agglomeration, which may lead to strands with a poor appearance, even when the proportion of the fluororesin is increased, and also aims to provide a molded article, a laminate, and a resin. The disclosure relates to a composition containing: a fluororesin A; and a resin B other than the fluororesin A, the resin B having a melt flow rate of 30 g/10 min or higher at a melting point + 12°C, at least one of the fluororesin A or the resin B containing a group (I) represented by the following formula: wherein R1 and R2 are the same as or different from each other, are each hydrogen or an organic group, and optionally bond to each other to form a ring structure; and a double line composed of a solid line and a dotted line represents a single bond or a double bond.