Popcorn Composite Shaped Parts Using Dielectric Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shaped parts made from plastics like polypropylene, polyethylene, and polystyrene are brittle, chemically resistant, have low melting temperatures, and are difficult to recycle, contributing to environmental pollution and health hazards due to the use of toxic flame retardants and being produced from finite fossil raw materials.
Innovation Solution
A method involving the use of electromagnetic radiation in the frequency range of ≥30 kHz to ≤300 GHz to produce popcorn-containing shaped parts, which are predominantly made from renewable raw materials, allowing for low thermal conductivity, excellent dimensional stability, and reduced flammability, with optional use of binders and polymers for bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional plastics (polypropylene, polyethylene, polystyrene) are used for shaped parts, then good processability and low density are achieved, but the material becomes brittle, has low chemical resistance, and low melting temperature
Solution Approach 1:
The patent uses composite materials by combining popcorn (renewable raw material) with binders and polymers to create shaped parts that achieve both good processability and improved chemical resistance. The composite structure allows the popcorn to provide low density and processability while the binders and polymers enhance chemical resistance and mechanical properties.
2Ease of manufacture
If conventional plastics are used, then shaped parts can be manufactured, but they contribute to environmental pollution and health hazards due to toxic flame retardants and difficulty in recycling
Solution Approach 1:
The patent changes the material parameter from conventional plastics to popcorn-based renewable materials. This parameter change fundamentally alters the environmental profile of the product, eliminating toxic flame retardants and improving recyclability while maintaining manufacturability through the development of suitable binding and processing technologies.
Solution Approach 2:
The patent enables recovering and recycling of popcorn-based shaped parts at the end of their service life. The renewable material nature of popcorn allows for biodegradation or recycling processes that conventional plastics do not support, thereby reducing environmental pollution and waste accumulation.
3Object-generated harmful factors
If popcorn is used as renewable raw material, then environmental impact is reduced, but the low water content results in low efficiency of electromagnetic radiation
Solution Approach 1:
The patent introduces binders and polymers as intermediary substances that enhance the interaction between electromagnetic radiation and the popcorn material. These intermediaries absorb and distribute the electromagnetic energy more effectively throughout the composite structure, overcoming the limitation of popcorn's low water content while maintaining the environmental benefits of using renewable materials.
4Weight of moving object
If shaped parts are produced with low density for lightweight applications, then production costs decrease, but mechanical strength and dimensional stability are reduced
Solution Approach 1:
The patent employs composite materials where popcorn provides low density and lightweight properties, while binders and polymers contribute mechanical strength and dimensional stability. The synergistic combination allows the final product to achieve both lightweight characteristics and sufficient structural integrity for various applications.
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 enables the production of lightweight, recyclable shaped parts with low thermal conductivity, excellent sound absorption, and low flammability, using renewable materials, reducing environmental impact and production costs while avoiding toxic additives.
Implementation Method 1
during the production of the shaped parts, they are temporarily subjected to targeted electromagnetic radiation in a frequency range from ≥30 kHz to ≤300 GHz
Data Source
AI summary
The present invention relates to two-dimensional and three-dimensional shaped parts and composite materials made of popcorn and synthetic and/or natural binding agents which are cured in automatic moulding machines or similar pressing installations by means of radio wave technology or microwaves. By means of these technologies, lightweight, two-dimensional and three-dimensional shaped parts and composite materials can be produced for packaging, as interior and exterior parts (for example in automobile and mobile-home construction), shock absorbers, space-dividing elements, furniture, consumer goods, for the building trade of for heat insulation.