Nanomaterial Composite Laminates for Impact Resistance
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Solution Overview
Problem
Current materials lack sufficient strength and adhesion properties, particularly in applications requiring high impact resistance and durability, such as hurricane-proof or bullet-resistant windows, where existing composites only offer limited enhancements.
Innovation Solution
A process involving the use of graphitic or organic/inorganic nanocomposites, specifically selecting and purifying nanomaterials like carbon nanotubes, graphene, and carbon nanofibers, mixing them with surfactants and additives, and applying them as a composite solution to enhance the strength and adhesion of materials like glass, polycarbonate, and acrylic, forming laminates with improved structural integrity and protection levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional composite laminates are used to strengthen glass, then some strength improvement is achieved (20% increase), but the strength enhancement is insufficient for high impact resistance applications
Solution Approach 1:
The patent uses carbon nanotubes (CNTs) as a reinforcing phase within the composite laminate structure. The CNTs form a three-dimensional network that bridges between glass surfaces and the laminate, creating a hybrid composite material system that combines the structural properties of glass with the high strength-to-weight ratio and impact resistance of carbon nanotubes, achieving 50% strength increase.
Solution Approach 2:
The patent applies the graphitic or organic/inorganic nanocomposite selectively at the interface between glass layers and the laminate structure. This localized application at critical stress points (where impact forces are transmitted) provides maximum strength enhancement where needed most, rather than uniformly throughout the entire structure.
2Strength
If graphitic or organic/inorganic nanocomposites are applied to enhance strength and adhesion, then material properties are significantly improved, but the complexity of material selection and processing increases
Solution Approach 1:
The patent employs graphitic nanomaterials (such as carbon nanotubes, graphene, graphite) that serve multiple functions simultaneously: they provide mechanical reinforcement, enhance adhesion between layers, and offer UV radiation protection. This multi-functionality reduces the need for separate treatment layers and simplifies the overall processing procedure despite the advanced material used.
Solution Approach 2:
The patent utilizes the unique physical and chemical parameters of graphitic nanomaterials, particularly their high aspect ratio, surface area-to-volume ratio, and chemical reactivity, to achieve superior performance at very low concentrations. By changing the scale to the nanometer level, the patent obtains disproportionate benefits relative to the amount of material added and processing complexity incurred.
3Strength
If advanced nanomaterials like carbon nanotubes are incorporated into composite laminates, then strength properties increase significantly (50% increase), but the cost and difficulty of material fabrication increases
Solution Approach 1:
The patent uses a polymer matrix as an intermediary medium to disperse and embed the carbon nanotubes uniformly throughout the laminate structure. This polymer carrier simplifies the fabrication process by allowing the nanomaterials to be incorporated through standard composite manufacturing techniques such as layering and curing, rather than requiring specialized nanoscale assembly processes.
Solution Approach 2:
The patent performs preliminary dispersion of carbon nanotubes in the polymer matrix before laminate assembly. This pre-mixing step ensures uniform distribution of the nanomaterials throughout the composite structure, preventing agglomeration and ensuring consistent mechanical properties throughout the final product, which simplifies subsequent manufacturing steps.
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 solution significantly increases the strength and adhesion properties of materials, providing enhanced protection against impacts and environmental factors like UV radiation, while maintaining the original functions of the materials, and can be applied economically through a spray-on method.
Implementation Method 1
The CNT network forming between the glass surface and the composite laminates during the drying/curing process
Implementation Method 2
The CNT network together with the composite is more effective to dispatch the impact stress generated by foreign projectiles
Implementation Method 3
The composite solution may include surfactant(s) to enhance homogeneity of the graphitic nanomaterial(s) in the solution
Implementation Method 4
The composite solution may include an adhesive, such as, but not limited to, an acetate adhesive, to aid bonding of the graphitic nanocomposite to a desired surface
Implementation Method 5
for increasing protection levels of materials and strength properties; UV absorbing/blocking
Data Source
AI summary
Compositions and methods for improved materials and material laminates with graphitic or inorganic/organic nanomaterials are presented. Graphitic or inorganic/organic nanomaterials, such as carbon nanotubes, carbon nanofibers, graphenes or graphene oxides, are introduced into an aqueous composition as fillers to provide a graphitic or inorganic/organic nanocomposite. Such composition may be used as laminates to improve adhesion between a film and a layer of material or between layers of materials and to increase not only strength properties, but also to provide other desired properties such as electronic properties, UV absorbing/blocking, optical-limiting, anti-reflective, fire-retardant, conducting, anti-microbial properties or pigmentation to say material. By tailoring the composite formulations with multiple graphitic or organic/inorganic nanomaterials, the resulting materials laminates become multifunctional and can be used for a variety of applications.