Microsphere Composite Core Material for Lightweight Structural Panels
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Solution Overview
Problem
Existing composite materials used in transportation, construction, and aerospace industries lack a cost-effective, lightweight, and high-strength solution for forming composite core materials.
Innovation Solution
A composition and method involving solid or hollow microspheres mixed with an encapsulating resin, which hardens to form a lightweight structure with high strength, suitable for forming panels and other structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional composite materials are used, then structural strength is achieved, but weight and cost effectiveness deteriorate
Solution Approach 1:
The patent uses a composite material system consisting of microspheres (solid or hollow) embedded in an encapsulating resin matrix. This composite structure achieves high strength-to-weight ratio by combining the lightweight microspheres with the strong resin, resolving the contradiction between strength and weight. The microspheres provide structural support while minimizing weight, and the resin provides encapsulation and structural integrity.
Solution Approach 2:
The use of hollow microspheres creates a porous or cellular structure within the composite material. This porous structure reduces density and weight while maintaining structural strength through the distributed cell walls. The encapsulating resin fills the spaces between microspheres, creating a foam-like structure that is both lightweight and strong.
2Strength
If traditional composite materials are used, then structural strength is achieved, but cost effectiveness deteriorates
Solution Approach 1:
The patent employs parameter changes in the resin formulation, specifically using a fire retardant resin with modified chemical properties. By adjusting the resin composition and curing parameters, the material achieves high strength while using cost-effective resin systems. The fire retardant properties are incorporated through chemical modification rather than expensive additive packages.
3Weight of moving object
If lightweight structure is formed, then weight is reduced, but strength may deteriorate
Solution Approach 1:
The composite of microspheres and encapsulating resin creates a synergistic effect where the lightweight microspheres provide structural framework and the resin provides binding and surface strength. Together they achieve high strength-to-weight ratio that neither material could achieve alone, resolving the contradiction between weight reduction and strength maintenance.
Solution Approach 2:
The spherical shape of the microspheres provides efficient stress distribution throughout the composite structure. The curved surfaces of the spheres allow for better load transfer compared to angular shapes, maintaining structural strength while minimizing weight. The spherical geometry optimizes the strength-to-weight ratio by distributing mechanical stresses uniformly.
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 method effectively produces a composite core material with a lightweight, high-strength, and insulating properties, suitable for various industrial applications, including transportation and construction.
Implementation Method 1
The encapsulating material may comprise a resin, such as a polyester resin, a vinyl ester resin, or a fire retardant resin
Data Source
AI summary
A composition and method to form a composite core material for use as a panel, molded product, sheet, or reinforcing material. The composition generally includes a microsphere discontinuous portion disposed in a continuous encapsulating portion, such as an encapsulating resin. Final products made with the composition may also comprise a mesh assembly on one or both sides of a sheet or panel, and may comprise a scored panel or sheet such that a plurality of reinforcing blocks or sections are formed which allow the cured product to conform to, and reinforce, irregular shapes and surfaces.