Elastomer Filler Analysis via Particle Size Fractionation
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Solution Overview
Problem
Current methods fail to accurately analyze the types, amounts, and mixing ratios of fillers in elastomer compositions, particularly when multiple types of fillers are present, which is crucial for determining the grade and composition of carbon black and silica.
Innovation Solution
An analysis method that estimates the type, amount, and mixing ratio of fillers based on the property, particle size, and particle size distribution of the filler, specifically utilizing high-temperature treatment and transmission electron microscopy to determine the shape and distribution of fillers like carbon black and silica.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional particle size measurement methods are used, then the average particle size can be determined, but the types, amounts, and mixing ratios of multiple fillers cannot be accurately analyzed
Solution Approach 1:
The patent segments the filler analysis by separating particles into size fractions using classification equipment. This allows different size ranges to be analyzed independently, enabling the identification of multiple filler types with overlapping size distributions. Each size fraction is then analyzed separately to determine the specific filler type present in that range.
Solution Approach 2:
The patent introduces an intermediary classification step between particle size measurement and filler type identification. By using classification equipment as an intermediary device, particles are sorted into distinct size fractions before analysis, which serves as a bridge that enables accurate multi-filler detection without directly measuring all properties simultaneously.
2Loss of information
If only particle size distribution is measured, then the size characteristics can be obtained, but the filler types and mixing ratios remain undetermined
Solution Approach 1:
The patent performs preliminary classification of particles into size fractions before conducting filler type analysis. This preliminary action organizes the sample in advance, so that when filler type determination is performed on each fraction, the information loss is minimized. The classification step prepares the sample in a way that preserves composition information for subsequent analysis.
Solution Approach 2:
The patent adds another dimension to the analysis by introducing classification-based size fractionation as an additional analytical dimension beyond simple particle size distribution. This dimensional approach allows the system to extract both size characteristics and composition information from the same sample set without requiring completely separate measurement systems.
3Adaptability or versatility
If multiple fillers are present in the elastomer composition, then the composition complexity increases, but conventional methods cannot distinguish between different filler types
Solution Approach 1:
The patent segments the multi-filler system into distinct size fractions through classification, allowing each filler type to be identified in its characteristic size range. This segmentation enables the system to handle complex multi-filler compositions by analyzing each fraction separately and then combining the results to determine overall mixing ratios with high precision.
Data Source
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AI summary
Provided is an analysis method enabling accurate estimation of the types, amounts, and mixing ratios of fillers present in an elastomer composition, including whether the sample contains two or more fillers. The present invention relates to an analysis method including estimating the type, amount, and mixing ratio of at least one filler in an elastomer composition containing an elastomer component and the filler, the method including estimation based on the property, particle size, and particle size distribution of the filler.