Reduced Polymer Content in Composite Particulate
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Solution Overview
Problem
Conventional particle polymer composites fully occupy the excluded volume, masking the particulate surface and reducing the material's porosity, adsorptive, and absorptive properties, limiting their chemical and physical interactions with mobile phases.
Innovation Solution
A composite with a reduced amount of polymer, leaving void spaces and exposing the particulate surface, allowing for increased porosity and interaction with mobile phases, achieved through the use of interfacial modifiers and carefully selected particulate sizes and shapes to create a porous structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the composite is fully filled with particulate and polymer to maximize composite properties, then tensile strength, density, modulus, elongation and impact strength are improved, but porosity, adsorptive properties and chemical interactions with mobile phases are reduced
Solution Approach 1:
The patent applies porous materials by intentionally creating void spaces within the composite structure. The particulate is designed with controlled porosity and the composite is formulated to maintain these void spaces rather than fully filling them. This allows the material to retain porosity (30-70% void space) while still providing structural integrity through the polymer matrix, enabling both mechanical strength and chemical interaction capabilities
Solution Approach 2:
The patent applies local quality by creating different functional zones within the composite structure. The polymer matrix provides mechanical strength and continuity, while the void spaces within the particulate structure provide porosity and surface area for chemical interactions. This spatial differentiation allows simultaneous optimization of both mechanical properties and chemical reactivity without requiring uniform composition throughout
2Quantity of substance
If the polymer fully occupies the excluded volume of particulate, then the composite achieves maximum density and mechanical properties, but the particulate surface is substantially covered reducing adsorptive properties
Solution Approach 1:
The patent applies partial action by using insufficient polymer to fully occupy the excluded volume of the particulate. Instead of complete coverage, the polymer is formulated to occupy only a portion of the void spaces, deliberately leaving some excluded volume unoccupied. This partial filling strategy maintains adequate mechanical integrity while preserving accessible particulate surface area for adsorption and chemical interactions with mobile phases
3Adaptability or versatility
If void spaces are intentionally introduced to increase porosity, then adsorptive and absorptive properties are improved, but mechanical strength and bulk density are reduced
Solution Approach 1:
The patent applies composite materials by combining particulate with controlled porosity and polymer matrix in a specific formulation. The composite is designed with 30-70% void space within the particulate structure, and the polymer is formulated to provide adequate bonding while respecting these void spaces. This composite approach allows the material to achieve both high porosity for adsorption and sufficient mechanical strength through the polymer network
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 composite exhibits unique properties such as increased porosity, reduced bulk density, and enhanced chemical and physical interactions with mobile phases, enabling applications like desiccants and VOC absorbers, while maintaining viscoelastic characteristics.
Implementation Method 1
the unique viscoelastic and thermoplastic character arises from the dispersion of an interfacial modifier (IM) coated particulate in a polymer matrix
Implementation Method 2
the composite obtains exposed surfaces of the particulate that obtains unique properties such as a degree of porosity... enabling applications like desiccants and VOC absorbers
Implementation Method 3
The particulate in the claimed composite has excluded volume and is not fully filled leaving void spaces or volumes... allowing for increased porosity and interaction with mobile phases
Implementation Method 4
The material can be shaped but does not retain such a shape when exposed to mechanical stress... obtaining unique properties such as... viscoelastic characteristics
Data Source
AI summary
Disclosed is a composite of a particulate and polymer, the composite characterized by less than enough polymer to fully occupy the available excluded volume of the particulate of the composite. The resulting composite is characterized by the particulate partially covered by the polymer leaving a substantial surface area uncovered.