Biodegradable Additive Manufacturing Materials for Controlled Decomposition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current additive manufacturing technologies lack environmentally friendly, biodegradable materials for the production of plastic parts, leading to challenges in end-of-life disposal.
Innovation Solution
Development of biodegradable materials for additive manufacturing using bio-based polymers and additives such as microorganisms, enzymes, and salts to facilitate decomposition in landfill or oceanic environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plastics are used for additive manufacturing, then manufacturing performance and part durability are improved, but environmental harm and disposal difficulty worsen
Solution Approach 1:
The patent changes the chemical composition parameters of the polymer material by incorporating biodegradable additives and modifying polymer chains, enabling the material to maintain structural integrity during use while allowing controlled decomposition in the environment. This resolves the contradiction by altering material parameters to achieve both durability and biodegradability.
Solution Approach 2:
The patent creates composite materials by combining traditional polymers with biodegradable additives, enzymes, and microorganisms. This composite structure provides the mechanical strength needed for durable parts while incorporating environmental decomposition mechanisms, thus resolving the contradiction between part durability and environmental harm.
2Object-affected harmful factors
If biodegradable materials are used for additive manufacturing, then environmental friendliness is improved, but material availability and manufacturing compatibility worsen
Solution Approach 1:
The patent introduces enzymes and microorganisms as intermediary substances that facilitate the biodegradation process. These intermediaries enable the material to decompose in the environment while maintaining compatibility with existing additive manufacturing processes, thus resolving the contradiction between environmental friendliness and ease of manufacture.
Solution Approach 2:
The patent modifies the physical and chemical parameters of biodegradable polymers to match the requirements of additive manufacturing processes. By adjusting melting points, viscosity, and other processing parameters, the material becomes compatible with existing manufacturing equipment while maintaining its biodegradable properties.
3Speed
If biodegradable additives are incorporated into polymers, then decomposition speed is improved, but material structural integrity worsens
Solution Approach 1:
The patent applies local quality by concentrating biodegradable additives and enzymes at specific locations within the polymer structure. This allows the material to maintain high structural integrity in load-bearing areas while having accelerated decomposition zones in less critical areas, thus resolving the contradiction between decomposition speed and structural integrity.
Solution Approach 2:
The patent incorporates pro-degradant additives and enzymes in a preliminary form that remains dormant during manufacturing and use, then activates upon exposure to environmental conditions. This preliminary preparation allows the material to maintain strength during service while enabling rapid decomposition when disposed of, resolving the contradiction between structural integrity and decomposition speed.
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 proposed solution enables the production of fully biodegradable parts that can completely return to nature within a few years, compared to traditional plastics which take tens or hundreds of years to decompose.
Implementation Method 1
a biodegradable material for additive manufacture... designed to be biodegradeable in a landfill or oceanic environment... microorganism, such as a bacteria, an enzyme or other additive to facilitate/accelerate the decomposition of the polymer
Implementation Method 2
The Ecopure additives are organic compounds that attract microbes when the waste polymer product is placed in a microbe rich environment such as a landfill
Data Source
AI summary
Disclosed is an additive manufacture material made from polymers and designed to be biodegradeable in a landfill or oceanic environment. The material may be made of bio-based polymers made from caster beans, cellulose, corn, starch, sugarcane, etc., such as nylon 11, bio-based polyethylene, polylactic acid, polyhydroxyalkanote, polyvinyl acetate, etc., to which is added microorganism, such as a bacteria, an enzyme or other additive to facilitate/accelerate the decomposition of the polymer in an environment where the object made through AM has been disposed, e.g., discarded after useful life. The microorganism or other additives that facilitate/accelerate the decomposition of polymers can also be added to petroleum-based, non bio-based polymers.