Micronized Composite Powder Additive for Safer Submicron Dispersion
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Solution Overview
Problem
Submicron particles are difficult to disperse and incorporate into liquid systems, posing handling challenges and potential health risks, and they can degrade processing equipment due to their abrasive nature.
Innovation Solution
Incorporating submicron particles into a micronized thermoplastic composite powder, which is solvent-free and easier to disperse across various systems, including industrial coatings and personal care products, using methods like melt mixing and jet micronization to create a stable and safe powder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If submicron particles are used to provide enhanced surface area and unique physical properties, then performance features are improved, but handling safety deteriorates and health risks increase
Solution Approach 1:
The patent uses micronized thermoplastic material as an intermediary carrier to encapsulate submicron particles. This mediator allows the submicron particles to maintain their performance-enhancing properties while reducing direct exposure risks to handlers. The thermoplastic matrix acts as a protective barrier that prevents direct contact with potentially harmful submicron particles during handling and processing.
Solution Approach 2:
The patent creates a composite material system combining submicron particles with micronized thermoplastic material. This composite approach allows the system to benefit from the unique properties of submicron particles (enhanced surface area, catalytic activity, etc.) while the thermoplastic component provides safer handling characteristics and reduced health risks associated with free submicron particles.
2Reliability
If submicron particles are incorporated into liquid systems to enhance functionality, then performance is improved, but dispersion difficulty and processing complexity increase
Solution Approach 1:
The patent performs preliminary action by pre-dispersing submicron particles into micronized thermoplastic material during the extrusion process. This preliminary dispersion action occurs under controlled conditions in the melt state, where particles are evenly distributed throughout the thermoplastic matrix before cooling and solidification. The result is a pre-dispersed composite powder that requires minimal additional processing when incorporated into final liquid systems.
Solution Approach 2:
The patent utilizes parameter changes by controlling temperature and physical state during processing. Submicron particles are incorporated into the thermoplastic material in the molten state where dispersion is facilitated by reduced viscosity and enhanced流动性. After cooling and solidification, the particles are locked in place within the solid composite structure, eliminating dispersion challenges associated with handling free particles in liquid systems.
3Reliability
If submicron particles are used to provide unique physical and chemical properties, then material performance is improved, but equipment degradation increases due to abrasive nature
Solution Approach 1:
The micronized thermoplastic material serves as an intermediary protective layer between submicron particles and processing equipment. This mediator allows the submicron particles to maintain their position and functional properties while the softer thermoplastic matrix reduces direct contact between hard submicron particles and equipment surfaces, thereby minimizing abrasive wear and equipment degradation.
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 micronized thermoplastic composite powder maintains the performance features of submicron particles while being safer to handle and reducing equipment degradation, allowing for broader application without solvents and minimizing health risks.
Implementation Method 1
The thermoplastic material is melted and combined with the submicron particles
Implementation Method 2
The molten composite is rapidly cooled to solidify and form micronized powder particles
Implementation Method 3
The composite material is subjected to mechanical forces to reduce particle size to micronized dimensions
Data Source
AI summary
A solvent-free composite powder comprising at least one thermoplastic material and at least one submicron nanoparticle material.