Aviation Pallet EPS PET Composite Structure
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Solution Overview
Problem
Current warehouse and cargo stacking tools, such as wooden, metal, and plastic pallets, face issues like moisture sensitivity, deforestation, heavy weight, high cost, rust, and poor resistance to temperature and chemical stress, which hinder their effectiveness and safety.
Innovation Solution
An aviation pallet composed of an expanded polystyrene (EPS) loading board with polyethylene terephthalate (PET) film adhered via an ethylene vinyl acetate (EVA) adhesive layer, providing improved mechanical properties, solvent resistance, and foldability while being lightweight and safe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wooden bracket is used, then it is easy to manufacture and low cost, but it is prone to moisture and rot, and causes deforestation
Solution Approach 1:
The pallet combines EPS (expanded polystyrene) material with a PET (polyethylene terephthalate) film surface layer to create a composite structure that leverages the lightweight and insulating properties of EPS while the PET film provides enhanced mechanical strength, solvent resistance, and environmental stability
Solution Approach 2:
The invention changes the material parameters by using expanded polystyrene foam with specific density and cellular structure, combined with PET film of controlled thickness (0.5-2mm), to achieve optimal balance between lightweight properties and mechanical strength
2Strength
If metal bracket is used, then it has high strength, but it is heavy and prone to rust
Solution Approach 1:
The combination of EPS core material with PET film surface creates a composite structure where the PET film provides the necessary strength and rust resistance while the EPS provides lightweight properties, eliminating the weight and corrosion issues of metal pallets
Solution Approach 2:
The PET film surface layer can be replaced or repaired independently if damaged, and the overall pallet structure is designed to be cost-effective with long service life despite being made from non-traditional materials
3Weight of moving object
If plastic pallet is used, then it is lightweight and low cost, but it has poor resistance to heat and aging
Solution Approach 1:
The PET film surface layer adhered to the EPS substrate provides superior heat resistance and UV aging resistance compared to conventional plastic pallets, while maintaining the lightweight advantage of polymeric materials
Solution Approach 2:
The invention specifies PET film thickness parameters (0.5-2mm) and EPS density parameters to optimize the balance between lightweight properties and resistance to environmental degradation
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 enhances the pallet's impact resistance, tensile strength, and temperature stability, ensuring health and safety while maintaining lightweight properties, and offering resistance to solvents, gases, and environmental stress.
Implementation Method 1
a polyethylene terephthalate (PET) film adhering to the surface of the EPS plate and the surface of the EPS supporting legs
Data Source
AI summary
An aviation pallet includes an EPS loading board, which includes an EPS plate and at least three EPS supporting legs extended from the bottom surface of the EPS plate for supporting the EPS plate, wherein the EPS plate and the EPS supporting legs are wholly injection molded; and a PET film adhering to the surface of the EPS plate and the surface of the EPS supporting legs; and has a plurality of jacks provided between each two EPS supporting legs. A method of producing the aviation pallet includes forming a main body step: laminating step; heating and cutting steps; vacuum forming step; and cooling and shape steps. The aviation pallet has good mechanical properties, folding resistance, most solvents resistance, low and high temperature resistance, and is lightweight, no poison, no smell, healthy and safe.