Solvent Screening Equation for ABS Polymer Recycling
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Solution Overview
Problem
The recycling of acrylonitrile-butadiene-styrene (ABS) copolymers from waste is challenging due to the slow decomposition of plastics and the environmental hazards associated with incineration, necessitating effective solvent screening methods for extraction and recycling.
Innovation Solution
A method involving the use of Equation 1 to screen solvents based on molecular weight and atomic composition index, distinguishing between good and non-solvents for ABS extraction, and employing solvent combinations to achieve efficient recycling of ABS copolymers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If incineration is used to dispose of plastic waste, then energy can be recovered, but harmful contaminants are discharged into the environment
Solution Approach 1:
The patent extracts and removes harmful contaminants from plastic waste through chemical treatment processes before energy recovery, separating the harmful components from the energy-generating components. This allows energy recovery while preventing contaminant discharge into the environment.
Solution Approach 2:
The patent converts harmful contaminants into beneficial products through chemical transformation processes. The contaminants that would normally be discharged are instead transformed into useful chemicals or energy, turning the harmful aspect of incineration into a benefit.
2Object-affected harmful factors
If landfilling is used to dispose of plastic waste, then harmful emissions are avoided, but plastics occupy substantial space and take long time to decompose
Solution Approach 1:
The patent changes the physical and chemical parameters of plastic waste through chemical treatment processes, transforming the material into forms that occupy less space and decompose more rapidly. This reduces the volume of waste requiring landfilling while avoiding harmful emissions.
Solution Approach 2:
The patent utilizes phase transitions and chemical transformations to convert solid plastic waste into different phases or chemical forms that are more compact and biodegradable, reducing landfill volume and decomposition time while maintaining emission avoidance.
3Loss of substance
If traditional solvent extraction methods are used for ABS recycling, then ABS copolymer can be recovered, but the process is inefficient and lacks systematic solvent selection criteria
Solution Approach 1:
The patent systematically changes and optimizes solvent parameters including molecular weight, polarity, and chemical composition to identify the most effective solvents for ABS extraction. This systematic parameter optimization improves extraction efficiency and productivity while maintaining high recovery rates.
Solution Approach 2:
The patent replaces inefficient mechanical or empirical solvent selection methods with a systematic computational or theoretical framework for solvent screening. This substitution of the selection mechanism enables more efficient identification of optimal solvents, improving overall recycling productivity.
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
This approach enables the identification of suitable solvents and solvent combinations for extracting and recycling ABS, facilitating the recovery of high-quality ABS copolymers while minimizing environmental impact.
Implementation Method 1
extracting an acrylonitrile-butadiene-styrene copolymer from waste including the acrylonitrile-butadiene-styrene copolymer using the screened solvent
Data Source
AI summary
A method for screening a solvent for extracting acrylonitrile-butadiene-styrene (ABS) from waste using the following Equation 1:ABS solubility score=x1 Log10Molecular Weight+x2IAC_Meanwhere Molecular Weight is the molecular weight of the solvent, IAC_Mean is the average information by an atomic number, and x1 and x2 are each a real number from 0 to 5. A method for recycling waste having ABS including screening the solvent using Equation 1 and extracting the ABS from the waste using the screened solvent is also provided. Additionally, a recycled acrylonitrile-butadiene-styrene copolymer and a recycled acrylonitrile-butadiene-styrene copolymer composition are provided.