Damping Resin Composition With Multimodal Particles for Low-Temperature Drying
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Solution Overview
Problem
Water-based resin compositions for damping materials face slower film-formation during drying and higher energy consumption compared to solvent-based compositions, necessitating a need for a composition that reduces energy consumption while maintaining performance.
Innovation Solution
A resin composition with polymer emulsion particles having multiple peaks in the particle size distribution, specifically 10 or less peaks, with a first peak between 300 nm and 800 nm and a second peak between 50 nm and 150 nm, enhances low-temperature drying properties and coating stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If water-based resin composition is used, then VOC release is reduced, but film-formation speed is slower and energy consumption is higher
Solution Approach 1:
The patent changes the physical parameters of the resin composition by controlling particle size distribution (creating multiple peaks with specific diameter ranges) and solid content (40-80%). This allows the water-based composition to achieve faster film-formation at lower temperatures while maintaining low VOC release, resolving the contradiction between environmental friendliness and energy efficiency.
Solution Approach 2:
The patent creates a composite emulsion system with polymer particles of different sizes (bimodal or multimodal distribution). The combination of smaller particles (50-200 nm) and larger particles (200-500 nm) allows efficient packing and rapid film-formation, enabling low-temperature drying that reduces energy consumption while maintaining the water-based low-VOC advantage.
2Object-generated harmful factors
If water-based resin composition is used, then VOC release is reduced, but film-formation speed is slower
Solution Approach 1:
The patent optimizes particle size parameters by creating a multimodal distribution with specific peak ranges (50-200 nm and 200-500 nm). This parameter optimization enables rapid water evaporation and quick film-formation, achieving speeds comparable to or faster than conventional solvent-based systems while maintaining the environmental benefits of water-based compositions.
Solution Approach 2:
The patent segments the particle population into distinct size groups that perform different functions during drying. The smaller particles fill gaps and form a fine matrix, while larger particles provide structural framework, enabling rapid and uniform film-formation that overcomes the typical slowness of water-based systems.
3Ease of manufacture
If conventional particle size distribution is used, then manufacturing is simpler, but coating stability is poor and cracking occurs
Solution Approach 1:
The patent employs a composite particle system with multimodal size distribution that creates a more stable and crack-resistant coating. The combination of different particle sizes allows for better stress distribution and reduced internal tension during drying, improving reliability without significantly complicating the manufacturing process.
Solution Approach 2:
The patent applies local quality by having different particle sizes perform different local functions within the coating. Smaller particles provide fine filling and surface smoothness, while larger particles provide structural integrity, creating a coating with enhanced stability and crack resistance through localized functional differentiation.
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 excellent low-temperature drying properties and coating stability, allowing for crack-resistant, densely packed films with improved handleability and reduced water content.
Implementation Method 1
a particle size distribution analyzer by dynamic light scattering
Data Source
AI summary
The present invention aims to provide a resin composition for damping materials which has excellent low-temperature drying properties and excellent coating stability. The present invention relates to a resin composition for damping materials, the composition containing polymer emulsion particles and having multiple peaks in a particle size distribution measured using a particle size distribution analyzer by dynamic light scattering.