Design and Development of a Detector Based on Poly(Lactic Acid)/CNT Composite for Detection of Volatile Organic Compounds

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Molla Abbasi Payam

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Journal: APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING Year:2020 | Volume:3 | Issue:4 Page(s): 45-56

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Title

Design and Development of a Detector Based on Poly(Lactic Acid)/CNT Composite for Detection of Volatile Organic Compounds

Author(s)

Molla Abbasi Payam | Issue Writer Certificate

Keywords

Conductive Polymer

Composites (CPC)

Poly(Lactic Acid) (PLA)

Gas Detector

Non-Solvent Induced Phase Separation (NIPS)

Volatile Organic Compounds (VOCs)

Abstract

Research subject: In recent years, there are so many attractions in the field of effective detection and discrimination of volatile organic compounds (VOCs). Detection of VOCs is of great importance in many applications and industries, such as air pollution control, air quality control, food packaging, food quality control, disease diagnostic, agriculture, etc. Sensitivity and selectivity of the prepared sensors to detect VOCs need to be improved. Research approach: A Conductive Polymer composite sensitive layer based on poly(lactic acid) as polymer matrix and multiwall carbon nanotubes as conductive filler was prepared to detect VOCs. For this purpose, the porous sensitive layer was prepared by non-solvent induced phase separation (NIPS) method. In this structure, chloroform (low-boiling point temperature) was used as the solvent and ethanol (high-boiling point temperature) was used as a non-solvent. The sensitive layer was used to detect toluene, methanol, and chloroform. The structure and morphology of synthesized layer was investigated by means of scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) techniques. Main results: The investigation indicated that the phase separation method induced the open cell morphology into the conductive composite. The BET results showed that the specific surface area of composite increased to 22. 3 m2/g. The experimental results showed that the response properties of porous layers was improved dramatically in comparison with the dense layers. It was related to the increase in the specific surface area of polymer composite and therefore increase in the diffusion coefficient of analyte molecules in the polymer matrix. Finally, the sensitivity and selectivity of porous sensitive layers were investigated based on Flory-Huggins interaction parameter.

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APA: Copy

Molla Abbasi, Payam. (2020). Design and Development of a Detector Based on Poly(Lactic Acid)/CNT Composite for Detection of Volatile Organic Compounds. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, 3(4 ), 45-56. SID. https://sid.ir/paper/267777/en

Vancouver: Copy

Molla Abbasi Payam. Design and Development of a Detector Based on Poly(Lactic Acid)/CNT Composite for Detection of Volatile Organic Compounds. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING[Internet]. 2020;3(4 ):45-56. Available from: https://sid.ir/paper/267777/en

IEEE: Copy

Payam Molla Abbasi, “Design and Development of a Detector Based on Poly(Lactic Acid)/CNT Composite for Detection of Volatile Organic Compounds,” APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, vol. 3, no. 4 , pp. 45–56, 2020, [Online]. Available: https://sid.ir/paper/267777/en

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