Biodegradable Plant Receptacle Using Bamboo-Composite Weldable Thread
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Solution Overview
Problem
Traditional plant receptacles face challenges in being cost-effective, easy to handle, biodegradable, and maintaining growth media stability while preventing fungal growth, often requiring fungicide treatments that are environmentally hazardous and costly.
Innovation Solution
A method involving a PLA thread covered with a flexible aliphatic polyester containing organic materials like bamboo, which creates a weldable and permeable biodegradable material for manufacturing plant receptacles, allowing for heat sealing and inherent fungicidal properties, ensuring air and moisture permeability and preventing fungal growth without hazardous chemicals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional plant receptacles are made from plastic or polymer netting, then they are easy to handle and cost-effective, but they lack inherent fungicidal properties and require hazardous fungicide treatments
Solution Approach 1:
The patent uses composite materials by combining PLA (polylactic acid) with natural fibers such as bamboo, coconut, or other organic materials. This composite structure provides both the mechanical properties needed for ease of manufacture and the inherent fungicidal properties of natural fibers, eliminating the need for hazardous fungicide treatments while maintaining cost-effectiveness
Solution Approach 2:
The plant receptacle is designed to be self-protecting against fungal growth through the inherent fungicidal properties of the natural fibers embedded in the PLA matrix. The receptacle serves itself by providing built-in fungal protection without requiring external fungicide applications, making the system self-sufficient and environmentally friendly
2Reliability
If plant receptacles are made from traditional materials, then they are biodegradable, but they cannot maintain growth media stability during handling
Solution Approach 1:
The composite structure of PLA combined with natural fibers creates a material that maintains structural integrity and growth media stability during handling while remaining biodegradable. The PLA provides structural strength and the natural fibers maintain biodegradability, allowing the receptacle to fulfill its protective function before decomposing in the environment
3Reliability
If plant receptacles are made from PLA thread covered with flexible aliphatic polyester, then air and moisture permeability is maintained, but the material must be weldable for continuous forming
Solution Approach 1:
The patent modifies the physical and chemical parameters of the PLA material by incorporating flexible aliphatic polyester and natural fibers, creating a composite that maintains permeability while gaining weldability. The material parameters are changed to include thermoplastic properties that enable welding during continuous forming while preserving the permeability needed for plant health
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 results in plant receptacles that are cost-effective, environmentally friendly, and maintain high air and moisture permeability, effectively preventing fungal growth while being biodegradable, thus addressing the limitations of traditional methods.
Implementation Method 1
continuously forming said sheet material into a continuous receptacle, by bringing the side edges of said sheet material into contact and welding said side edges together
Implementation Method 2
using said weldable biodegradable thread in a woven or non-woven process, making a permeable sheet material
Implementation Method 3
the flexible aliphatic polyester comprising 10 wt % to 90 wt % organic material... Extensive testing has shown that the addition of an organic material such as for example bamboo material incorporated into the material from which the plant receptacle is manufactured provides a number of advantages. Firstly, the bamboo content acts as a fungicide
Data Source
AI summary
Method of manufacturing a plant receptacle wherein the following steps are performed: a) a PLA thread is co-extruded with a flexible aliphatic polyester, said flexible aliphatic polyester comprising 10 wt % to 30 wt % bamboo material, such that the flexible aliphatic polyester covers the PLA thread, thereby creating a weldable biodegradable thread; b) using said weldable biodegradable thread in a woven or non-woven process, making a permeable sheet material; c) continuously forming said sheet material into a continuous receptacle, by bringing the side edges of said sheet material into contact and welding said side edges together; d) cutting said continuous receptacle in predetermined lengths thereby creating separate plant receptacles.