Acrylamide-Based Polymer Adsorbent for VOC Removal

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Solution Overview

Problem

Conventional adsorbents for volatile organic compounds (VOCs) do not demonstrate sufficient adsorption properties, failing to effectively remove harmful VOCs from the atmosphere.

Innovation Solution

A novel acrylamide-based polymer with a specific repeating unit structure is used to create an adsorbent that exhibits improved adsorption properties, featuring mesoporosity and crystallinity, allowing for effective adsorption and removal of VOCs through its uniform pore size and high surface area, particularly in the form of electrospun fibers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional adsorbents (porous inorganic particles, functional fibers, non-woven fabrics) are used, then they provide basic adsorption function, but they cannot show sufficient adsorption property of VOCs

Engineering Contradiction:
Improveadsorption propertyVSAvoidadsorption capacity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent utilizes porous polymer particles with controlled pore structures to enhance adsorption capacity. The porous structure provides increased surface area and pore volume for VOC adsorption, directly addressing the insufficient adsorption property of conventional adsorbents while maintaining practical productivity

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent employs composite structures combining polymer matrices with functional components (such as metal organic frameworks or other adsorptive materials) to create adsorbents with superior VOC adsorption properties. This composite approach enables simultaneous achievement of high reliability and productivity by combining the structural stability of polymers with the high adsorption capacity of functional materials

Inventive Principle:
Principle #40Composite materials

2Reliability

If adsorption capacity is increased to adsorb 15 g or more of VOCs per gram of polymer, then adsorption property is significantly improved, but manufacturing complexity increases due to specific polymer structure requirements

Engineering Contradiction:
Improveadsorption capacityVSAvoidpolymer structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent achieves high adsorption capacity by optimizing key parameters of the polymer structure, including pore size distribution, surface area, and functional group concentration. By systematically adjusting these parameters within specific ranges, the patent attains adsorption capacity of 15 g or more VOCs per gram of polymer without excessive structural complexity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces specific functional groups or motifs at localized regions within the polymer structure to enhance adsorption activity. This local quality approach allows the bulk polymer structure to remain relatively simple while specific zones provide high adsorption capacity, resolving the contradiction between adsorption performance and structural complexity

Inventive Principle:
Principle #3Local quality

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 acrylamide-based polymer adsorbent shows significantly enhanced VOC adsorption capacity, capable of adsorbing 15 g or more of VOCs per gram of polymer, outperforming conventional adsorbents and maintaining thermal stability and mechanical properties.

Implementation Method 1

an adsorbent of VOCs comprising a novel acrylamide-based polymer... shows significantly improved adsorption property... capable of adsorbing 15 g or more of VOCs per 1 g of the polymer

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS8911537B2Adsorbent of volatile organic compounds and adsorption method using thereof
Publication Date: 2014.12.16 LG CHEM LTD
  • US8911537B2 patent drawing
  • US8911537B2 patent drawing
  • US8911537B2 patent drawing

AI summary

The present invention relates to an adsorbent of volatile organic compounds (VOCs) comprising a novel mesoporous polymer, that shows improved adsorption property, and adsorption method of VOCs using thereof.The adsorbent comprises an acrylamide-based polymer.