Textile Debris Composite Using Natural Rubber Latex Binder
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Solution Overview
Problem
Existing composite materials made from textile debris and binders face issues with weak mechanical bonding and toxicity due to the use of formaldehyde-based adhesives, which are not environmentally friendly and do not result in stable, strong composite materials.
Innovation Solution
A composite material is fabricated using textile debris bonded with a binder comprising natural rubber latex, sulfur, zinc, an antioxidant, zinc oxide, and pH adjustment substances, processed through heat and cold compression to achieve high strength and durability, reducing toxicity and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If formaldehyde-based adhesives are used to bond textile debris, then the composite material achieves high strength and durability, but the material becomes toxic and environmentally harmful
Solution Approach 1:
The invention changes the chemical composition parameters of the binder by replacing formaldehyde-based adhesives with natural rubber latex combined with specific inorganic additives (calcium, silica, alumina) and organic compounds. This parameter change maintains bonding strength while eliminating toxic formaldehyde emissions, directly resolving the contradiction between strength and toxicity.
Solution Approach 2:
The invention creates a composite binder system combining natural rubber latex with multiple inorganic additives (calcium, silica, alumina) and organic compounds. This composite approach enhances the binding properties and mechanical strength of the composite material while using non-toxic natural components, thereby achieving both high strength and low toxicity.
2Object-generated harmful factors
If natural rubber latex is used as a binder for textile debris, then the material becomes non-toxic and environmentally friendly, but the mechanical bonding strength becomes weak
Solution Approach 1:
The invention enhances natural rubber latex by combining it with inorganic additives (calcium, silica, alumina) and organic compounds to form a composite binder system. This composite structure improves the mechanical bonding strength and durability while maintaining the non-toxic, environmentally friendly properties of natural rubber latex.
Solution Approach 2:
The invention introduces specific inorganic additives and organic compounds at controlled proportions (0.1-10% by weight) into the natural rubber latex binder. These localized enhancements improve the bonding strength and durability in critical areas without compromising the overall non-toxic nature of the binder.
3Strength
If inorganic additives are added to increase physical and mechanical properties, then the composite material strength improves, but the infiltration (wettability) between binder and additives becomes problematic
Solution Approach 1:
The invention uses natural rubber latex as an intermediary substance that bridges the polar textile debris and inorganic additives. The latex provides compatible interfaces for both materials, ensuring proper infiltration and wettability. Additionally, surfactants or coupling agents may be used as intermediary substances to enhance the bonding between inorganic additives and the binder matrix, resolving the infiltration stability issue.
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 resulting composite material exhibits physical properties comparable to particle board materials, offering high strength, durability, and reduced toxicity, making it suitable for applications like furniture and interior decoration while minimizing waste and environmental harm.
Implementation Method 1
binder comprising natural rubber latex and sulfur in the amount sufficient for vulcanization
Implementation Method 2
The mixture was then formed into sheets by mechanical methods including placement into molds and compression under heat to form composite sheets
Data Source
AI summary
A composite material having physical characteristics equivalent to particle board materials bonded with resin-based adhesives that contain formaldehyde-urea is formed of reclaimed textile debris comprising fabric scraps and a latex based binder. The binder includes natural rubber latex, sulfur, an anti-oxidant agent and pH adjustment substances. The binder may also include selected amounts of zinc oxide, zinc diethyldithiocarbamate and a stabilizer. Production of the composite material includes mixing the constituents and vulcanization through the application of heat and compression. Cold compression is subsequently applied.