Binderless Glass Fiber Insulation Pad for Stable Pipe Insulation
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Solution Overview
Problem
Traditional methods for forming fibrous insulation materials often rely on wet binders, which can be inefficient and environmentally challenging, and do not fully utilize the mechanical properties of glass fibers for enhanced thermal and acoustic insulation.
Innovation Solution
A method of forming binderless or dry binder glass fiber packs through mechanical entanglement, such as needling, to create high-density, high-strength insulation products without the use of wet binders, utilizing continuous processes that align and layer fibers for improved tensile and bond strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wet binders are used to form fibrous insulation materials, then the fibers can be bound together to form stable structures, but the process becomes environmentally challenging and inefficient
Solution Approach 1:
The patent removes the binder component entirely from the insulation material formulation, creating a binderless structure. This extraction of the harmful element (wet binder) eliminates the environmental issues associated with binder application, drying, and potential off-gassing, while maintaining structural integrity through alternative mechanical entanglement methods
Solution Approach 2:
The patent replaces the chemical binding mechanism (wet binder adhesion) with a mechanical entanglement system. Needles mechanically interlock the glass fibers through physical penetration and friction, substituting chemical bonding with mechanical force to achieve structural stability without environmental drawbacks
2Productivity
If traditional forming processes are used, then insulation materials can be produced, but the mechanical properties of glass fibers are not fully utilized for enhanced thermal and acoustic insulation
Solution Approach 1:
The patent fundamentally changes the density parameter of the glass fiber structure by mechanically entangling fibers to achieve high density (4-6 times denser than conventional insulation). This parameter change in density directly enhances both thermal insulation (reduced heat transfer) and acoustic insulation (improved sound absorption) while fully utilizing the mechanical properties of the glass fibers
3Strength
If binderless glass fiber packs are formed through mechanical entanglement, then environmental impact is reduced and mechanical strength is improved, but the manufacturing process complexity increases
Solution Approach 1:
The glass fibers serve their own binding function through mechanical entanglement via needling, eliminating the need for separate binder application systems. The material self-structures through controlled mechanical deformation, reducing equipment complexity while achieving enhanced mechanical strength and environmental performance
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 results in insulation materials with enhanced thermal and acoustic performance, improved mechanical strength, and reduced environmental impact by eliminating the need for wet binders, while maintaining or improving the thickness and density of the insulation products.
Implementation Method 1
The glass fibers are mechanically entangled by needling such that the binderless pack has a density of from 4.5 to 5.5 pounds per cubic foot
Implementation Method 2
The insulation pad is used to insulate pipes and vessels
Implementation Method 3
enhanced thermal and acoustic performance
Data Source
AI summary
An insulation pad includes a binderless pack of glass fibers and an envelope around the binderless pack of glass fibers. The glass fibers are mechanically entangled by needling such that the binderless pack has a density of from 4.5 to 5.5 pounds per cubic foot. The insulation pad is used to insulate pipes and vessels.