Glass Fiber Pipe Insulation Binder That Resists Catalyst Leaching
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Solution Overview
Problem
The construction industry has moved away from formaldehyde-based binder compositions due to health and environmental concerns, leading to a need for alternative compositions that maintain the strength and integrity of fiber composites without leaching of catalysts and delamination, while being formaldehyde-free.
Innovation Solution
A carbohydrate binder composition using a water-soluble catalyst with sulfate or phosphate moieties that become insoluble after curing, reducing leaching and corrosion, and enhancing the bond between glass fibers and the binder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If formaldehyde-based binder compositions are used, then low cost and acceptable strength properties are achieved, but health and environmental concerns arise due to formaldehyde being a probable human carcinogen and irritant
Solution Approach 1:
The patent changes the chemical composition parameters by replacing formaldehyde-based binders with alternative binder systems that eliminate formaldehyde while maintaining binding performance. This involves modifying the chemical structure and composition of the binder to achieve the same functional properties without the harmful formaldehyde component.
2Object-affected harmful factors
If carbohydrate-based binder formulations are used as formaldehyde-free alternatives, then formaldehyde-free and renewable feedstock benefits are achieved, but catalyst leaching and composite weakening occur
Solution Approach 1:
The patent extracts or removes the problematic catalyst components that cause leaching and composite weakening from the carbohydrate-based binder system. By eliminating these harmful catalysts while retaining the beneficial carbohydrate binder, the patent achieves both formaldehyde-free status and maintained composite strength.
Solution Approach 2:
The patent introduces intermediary substances or modified catalyst systems that facilitate the binding process without causing leaching or composite weakening. These intermediary components mediate between the carbohydrate binder and the glass fibers, enabling effective binding while preventing the harmful effects of traditional catalysts.
3Ease of manufacture
If compounds are used in processing formaldehyde-free binder systems, then binder formulation is achieved, but composite weakening occurs near the composite
Solution Approach 1:
The patent converts potentially harmful processing compounds into beneficial components by selecting or modifying compounds that enhance binder performance without causing composite weakening. The harmful effects of traditional processing compounds are transformed into useful properties that improve both binder formulation and composite strength.
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 results in fiber-containing composites with reduced ion leach rates and improved mechanical properties, suitable for various construction materials and electronic components.
Implementation Method 1
The catalyst may catalyze Maillard reactions in binder compositions without significant leaching of the catalyst and its derivatives from the finished product
Data Source
AI summary
Embodiments of the present technology may include piping insulation products. The piping insulation product may include glass fibers and a binder. The binder may include cured products from a binder composition that includes a carbohydrate, a nitrogen-containing compound, and a catalyst that catalyzes the reaction between the carbohydrate and the nitrogen-containing compound. The catalyst may be water soluble before curing but water insoluble after curing. The nitrogen-containing compound may include an amino-amide, an amine salt of an organic acid, an ammonium salt of a carboxylic acid, or a reaction product of a urea compound and an aldehyde-containing compound. The catalyst may include a polymer including a sulfate, sulfonate, phosphate, or phosphonate moiety. The catalyst may be a crosslinker.