Systems and methods for the functionalization of polyolefin fibers
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Solution Overview
Problem
Conventional methods for functionalizing polyolefin fibers require heating large amounts of precursor solution, which is energy-intensive and inefficient.
Innovation Solution
A system comprising a reactor chamber, a fiber pulley system, and a precursor sprinkler system that aerosolizes the precursor solution, allowing it to contact the polyolefin fibers as they pass through the reactor chamber, eliminating the need for a large heated bath.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large bath of precursor solution is used for functionalization, then the polyolefin fiber can be fully contacted with the precursor solution, but a large amount of energy is required to heat and maintain the bath temperature
Solution Approach 1:
The patent extracts the precursor solution from the large heated bath and applies it directly to the fiber surface through spray nozzles. This removes the unnecessary large volume of precursor solution that would otherwise require continuous heating, while maintaining effective contact between the precursor and fiber surface for functionalization.
Solution Approach 2:
Instead of uniformly heating a large bath of precursor solution, the patent applies the precursor solution locally directly to the fiber surface where it is needed. The spray nozzles deliver precursor solution precisely at the fiber processing location, concentrating the functionalization action where it is required rather than maintaining a large volume at reaction temperature.
2Reliability
If a large bath of precursor solution is used for functionalization, then complete immersion of the fiber is achieved, but the process becomes inefficient due to the large volume of precursor solution required
Solution Approach 1:
The patent extracts the precursor solution application from the large immersion bath concept and replaces it with direct spray application. This eliminates the inefficiency of maintaining a large volume of precursor solution while ensuring complete coverage of the fiber surface through the spray pattern, improving both efficiency and completeness.
Solution Approach 2:
The patent uses spray nozzles to deliver the precursor solution in a fine mist or spray pattern that envelops the fiber as it passes through. This pneumatic/hydraulic delivery method ensures complete coverage and penetration of the precursor onto the fiber surface without requiring a large immersion bath, thereby improving process efficiency while maintaining functionalization completeness.
3Reliability
If a large bath of precursor solution is heated to the desired temperature, then the functionalization reaction can proceed effectively, but the energy consumption increases significantly
Solution Approach 1:
The patent extracts the precursor solution from the large heated bath and applies it directly to the fiber. This eliminates the need to heat and maintain a large volume of precursor solution, significantly reducing energy consumption while preserving the functionalization reaction effectiveness through direct application and controlled heating of only the necessary amount of precursor.
Solution Approach 2:
The patent changes the physical state and delivery method of the precursor solution from a large heated liquid bath to a controlled spray or mist application. This parameter change allows for reduced total volume of precursor solution, enabling effective functionalization with lower energy input for heating and maintenance.
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 increases the efficiency of the functionalization process by reducing the amount of precursor solution needed and lowering energy consumption, while maintaining effective functionalization of the polyolefin fibers.
Implementation Method 1
The precursor sprinkler system may be operable to aerosolize a precursor solution and contact the aerosolized precursor solution onto the polyolefin fiber
Data Source
AI summary
A system for the functionalization of polyolefin fiber includes a reactor chamber, a fiber pulley system, and a precursor sprinkler system. The reactor chamber defines an interior reactor space and a plurality of fiber inlet/outlet pairs positioned at opposite ends of respective fiber processing axes. The fiber pulley system is arranged to direct polyolefin fiber through the plurality of fiber inlet/outlet pairs, along a fiber processing path comprising the respective fiber processing axes. The precursor sprinkler system is operable to aerosolize a precursor solution and contact the aerosolized precursor solution with the polyolefin fiber. A method for functionalizing polyolefin fiber includes aerosolizing the precursor solution to form an aerosolized precursor solution, passing polyolefin fiber along the fiber pulley system into the reactor chamber, contacting the polyolefin fiber with the aerosolized precursor solution, and passing functionalized polyolefin fiber out of the interior reactor space of the reactor chamber.