Biodegradable Starch-Fiber Composite Pallets
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Solution Overview
Problem
The timber pallet and crate industry faces challenges such as excessive waste, non-standardization leading to inefficiencies in international trade, and compliance issues with invasive species regulations, necessitating a sustainable alternative to traditional wood materials.
Innovation Solution
A fused solid material composed of a starch and plasticizer matrix with continuous fibre reinforcement, produced through pultrusion, which is aerated and biodegradable, offering structural integrity while minimizing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If timber is used for pallets and crates, then structural strength and durability are achieved, but excessive waste is generated and environmental sustainability deteriorates
Solution Approach 1:
The patent employs composite materials consisting of starch matrix combined with natural fibers (such as hemp, flax, or jute) to create a wood substitute that maintains structural strength while being biodegradable. This composite approach allows the material to replace timber in pallet and crate applications without generating persistent waste, as the entire composite structure can decompose naturally after use.
2Adaptability or versatility
If non-standardized pallet sizes are used to meet diverse transport needs, then adaptability is improved, but efficiency in international trade deteriorates due to lack of standardization
Solution Approach 1:
The patent enables standardization of pallet dimensions and material properties through controlled processing parameters of the starch-fiber composite. By adjusting manufacturing parameters such as compression ratio, drying temperature, and fiber content, the material can be produced in standardized sizes that meet international trade requirements while maintaining the adaptability to satisfy diverse transport needs through consistent quality control.
3Ease of manufacture
If untreated wood is used for pallets, then ease of manufacture is improved, but compliance with invasive species regulations deteriorates
Solution Approach 1:
The starch-fiber composite material inherently possesses the quality of being free from invasive species carriers throughout its entire structure. Unlike wood that requires treatment at specific locations or stages, the synthetic composite material is uniformly composed of processed starch and natural fibers that do not support invasive species, providing compliance reliability without requiring additional treatment steps.
4Reliability
If timber treatment processes are applied to meet regulatory requirements, then regulatory compliance is improved, but material purity and environmental sustainability deteriorate
Solution Approach 1:
The patent adopts a disposable approach with biodegradable starch-fiber composite pallets that are designed for single-use or limited-use cycles. Instead of treating wood to extend its life indefinitely, the composite material is engineered to fulfill its functional purpose and then decompose naturally, eliminating the need for chemical treatments while maintaining regulatory compliance through its inherent composition.
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 biodegradable fused solid provides a sustainable alternative to wood, reducing waste and compliance costs, and maintains mechanical properties comparable to traditional materials, making it suitable for pallets and crates.
Implementation Method 1
wherein the matrix is aerated
Implementation Method 2
providing a solidifiable liquid matrix which comprises starch and plasticizer, and extruding the liquid matrix
Implementation Method 3
wherein continuous fibre is disposed under longitudinal tension within the matrix
Data Source
Figure 1
Figure 2(A)~2(D)
AI summary
An extrudable fused solid comprising a matrix which comprises starch and a plasticizer, and which has continuous fibre under tension disposed within the matrix. Further a process for producing the fused solid, and a pallet which is at least partially composed of the fused solid.