Biodegradable Yarn Resin Composition for Spinning and Decomposition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional polymer materials used in disposable products are non-biodegradable, leading to environmental concerns due to slow decomposition and emission of harmful substances during incineration, necessitating the development of biodegradable alternatives with improved mechanical properties and processing capabilities.
Innovation Solution
A biodegradable yarn and resin composition incorporating a first biodegradable resin with diol, aromatic dicarboxylic acid, and aliphatic dicarboxylic acid, featuring specific melt indices, crystallization temperatures, and molecular weights, which can be spun into fibers with enhanced mechanical strength and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional polymer materials are used to manufacture disposable products, then excellent processability and low cost are achieved, but harmful substances are emitted during incineration and natural decomposition takes hundreds of years
Solution Approach 1:
The patent changes the chemical composition parameters of the polymer material by using specific biodegradable polymers (PLA, PBAT, PBS) with controlled molecular weights and compositions. This transforms the material from non-biodegradable conventional polymers to biodegradable alternatives that decompose within months to years, eliminating harmful emissions while maintaining processability through controlled polymerization parameters
Solution Approach 2:
The patent creates composite biodegradable polymer materials by combining multiple biodegradable polymers (e.g., PLA-PBAT-PBS terpolymer) with complementary properties. This composite approach achieves both excellent processability and rapid biodegradability, where each polymer component contributes specific characteristics that together solve the contradiction between manufacturability and environmental harm
2Duration of action of stationary object
If biodegradable polymers are used to replace conventional polymers, then rapid decomposition is achieved, but mechanical properties and processability are compromised
Solution Approach 1:
The patent employs composite biodegradable polymer systems (PLA-PBAT-PBS terpolymer) where each component contributes specific mechanical properties. PBAT provides flexibility and elongation, PLA provides strength and rigidity, and PBS provides balance. This composite structure achieves rapid decomposition while maintaining excellent mechanical properties including tensile strength and elongation at break
Solution Approach 2:
The patent optimizes polymerization parameters including molecular weight distribution, monomer ratios, and polymerization conditions to control the mechanical properties of the biodegradable polymer. By adjusting these parameters, the material achieves both rapid biodegradability and enhanced mechanical strength, overcoming the traditional trade-off between decomposition speed and structural integrity
3Ease of operation
If biodegradable resin composition is formulated with specific melt index and crystallization temperature, then ease of spinning and mechanical properties are improved, but formulation complexity increases
Solution Approach 1:
The patent optimizes the resin composition by controlling specific parameters: melt index within 6-15 g/10 minutes at 190°C for optimal spinning flow characteristics, and crystallization temperature within 40-85°C for proper fiber formation. These parameter specifications enable easy spinning while maintaining mechanical integrity, and the optimization process manages formulation complexity through systematic parameter control
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 yarn and resin composition exhibit improved mechanical properties, ease of spinning, and accelerated biodegradability, addressing environmental concerns by facilitating the production of sustainable, easily decomposable products.
Implementation Method 1
a crystallization temperature of 40° C. to 85° C.
Implementation Method 2
a melt index of 6 g/10 minutes to 15 g/10 minutes at 190° C.
Data Source
AI summary
Provided is a biodegradable yarn, comprising: a first biodegradable resin composition comprising a first biodegradable resin, wherein the first biodegradable resin includes diol, aromatic dicarboxylic acid and aliphatic dicarboxylic acid, and the first biodegradable resin composition has a melt index of 6 g/10 minutes to 15 g/10 minutes at 190° C. and a crystallization temperature of 40° C. to 85° C.