Micropowder Additive Distribution in Plastic Substrates
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Solution Overview
Problem
Current methods for distributing small amounts of substances in carriers or substrates often require complex engineering steps and do not achieve uniform distribution, which is essential for maintaining functional properties in applications like plastics, where additives need to be effectively incorporated to ensure desired properties.
Innovation Solution
Applying a substance with a particle size <50 μm uniformly onto a carrier or substrate with a particle size <5 mm and subjecting the mixture to a shape conversion operation with pressure and/or temperature, achieving a viscous state with a viscosity of at least 50 mPas*s to ensure homogeneous distribution and improved properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If granules are used instead of powders to avoid separation and dusting, then handling and safety are improved, but uniform distribution in the substrate deteriorates
Solution Approach 1:
The additive is divided into very fine particles with a median diameter of less than 50 μm, creating micropowder that can be uniformly distributed in the substrate while maintaining granular characteristics for improved handling
Solution Approach 2:
The particle size parameter of the additive is changed to a specific range (median diameter < 50 μm) that optimizes both distribution uniformity and handling properties, resolving the contradiction between fine powder distribution and granule safety
2Manufacturing precision
If masterbatch is used as an intermediate step to achieve homogeneous distribution, then distribution uniformity is improved, but process complexity increases
Solution Approach 1:
The additive is pre-processed to a specific fine particle size (median diameter < 50 μm) before mixing, which enables direct uniform distribution in the substrate without requiring intermediate masterbatch steps, thereby simplifying the overall process
Solution Approach 2:
The masterbatch intermediate step is extracted from the process by directly incorporating the pre-processed micropowder additive into the substrate, eliminating the need for separate concentrate preparation and reducing process complexity
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
This method allows for a more homogeneous distribution of additives in plastics and other substrates, enhancing their activity and reducing the effort required for incorporation, leading to superior effects with smaller amounts and simplified processing.
Implementation Method 1
a substance or mixture of substances (referred to below as A) having a particle size of less than 50 μm is applied uniformly onto a carrier or substrate (referred to below as B) having a particle size of less than 5 mm
Implementation Method 2
the mixture obtained, comprising powders having different particle sizes, is converted by pressure and/or temperature into a viscous state (viscosity of at least 50 mPas*s)
Implementation Method 3
the mixture obtained, comprising powders having different particle sizes, is converted by pressure and/or temperature into a viscous state (viscosity of at least 50 mPas*s)
Data Source
AI summary
The invention relates to a new method for improved distribution of a substance or mixture of substances in a carrier or substrate or in a mixture of different carriers or substrates. The invention likewise relates to the raw, multicomponent compositions, semi-finished products or end articles obtained by this method and also to the micropowders of the substance or mixture of substances that are used in the method. The invention relates in particular to the application of this method to the incorporation of additives into plastics and to the plastics additives micropowders prepared for that purpose.