Substrate Band for Cable-Wrapping Tape Using Pyrolysis Oil
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Solution Overview
Problem
Current methods for recycling mixed plastic waste often focus on energy generation rather than material reuse, leading to CO2 emissions and inefficiencies, and require separate processing of PET bottles to achieve purity.
Innovation Solution
A method involving thermochemical conversion, such as pyrolysis, of plastic waste to break down materials into monomers, producing pyrolysis oil which can be used to create plastic fibers and filaments for a textile substrate web, eliminating the need for separate recycling and allowing the use of mixed plastic waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If mixed plastic waste is used for recycling, then resource utilization is improved, but material purity deteriorates
Solution Approach 1:
The invention applies thermochemical conversion (pyrolysis) to fundamentally change the chemical parameters of mixed plastic waste, breaking down complex plastic polymers into basic monomers and hydrocarbons. This parameter change enables the use of mixed plastics without separation while achieving pure synthetic oil suitable for producing new plastic fibers and filaments with controlled molecular structure and properties.
2Loss of substance
If material recycling is performed, then resource conservation is improved, but CO2 emissions worsen
Solution Approach 1:
The invention replaces the conventional mechanical recycling system (shredding, sorting, washing) with a thermochemical conversion system. Instead of physically processing plastics, the system uses pyrolysis to chemically convert plastic waste into synthetic oil and monomers, which are then used to produce new plastics. This substitution eliminates the need for energy-intensive separation processes and reduces CO2 emissions by creating a closed-loop carbon cycle.
3Manufacturing precision
If PET bottles are separately processed, then material purity is improved, but process complexity worsens
Solution Approach 1:
The invention creates a universal processing system that can handle all types of plastic waste (PET bottles, mixed plastics, other polymers) through a single thermochemical conversion process. The pyrolysis reactor and subsequent processing equipment serve multiple functions: breaking down different plastic types, producing synthetic oil, generating monomers, and creating feedstock for new plastic production, eliminating the need for separate processing lines for different plastic types.
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 method enables the production of adhesive tape substrates with comparable properties to those made from petroleum-based materials, while significantly reducing CO2 footprint and allowing the use of mixed plastic waste, maintaining temperature resistance and mechanical properties.
Implementation Method 1
thermochemical conversion, such as pyrolysis, of plastic waste to break down materials into monomers
Data Source
AI summary
A method of making a textile substrate web for use as a component of an adhesive tape has the steps of thermochemically converting plastic waste into raw material, making plastic fibers and/or filaments at least partially from the raw material, and forming the plastic fibers and/or filaments made from the raw material into a textile web.