The effect of metal salts on polyurethane foam: antioxidation and reduction of VOCs emissions

The emission of volatile organic compounds (VOCs) of polyurethane foam (PUF), mainly the aldehydes and ketones, in an indoor environment is a threat to human beings’ health. Considering that salts have the potentials to improve the anti-oxidation ability of PUF to cut down VOCs’ emission, therefore,...

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Bibliographic Details
Published in:Journal of polymer research 2021-05, Vol.28 (5), Article 162
Main Authors: Huang, Tong, Li, Ruihai
Format: Article
Language:English
Subjects:
Acetaldehyde
Acetone
Aldehydes
Butyraldehyde
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Compression tests
Copper chloride
Emission analysis
Emissions control
Indoor environments
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared spectrometers
Ketones
Mechanical properties
Original Paper
Oxidation
Oxidation resistance
Polymer Sciences
Polyurethane foam
Potassium
Potassium iodides
Thermogravimetric analysis
Thiocyanates
VOCs
Volatile organic compounds
Zinc chloride
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Summary:The emission of volatile organic compounds (VOCs) of polyurethane foam (PUF), mainly the aldehydes and ketones, in an indoor environment is a threat to human beings’ health. Considering that salts have the potentials to improve the anti-oxidation ability of PUF to cut down VOCs’ emission, therefore, in this article, we aim at, for the first time, investigating VOCs emission of PUF modified with metal salts, such as potassium iodide, potassium thiocyanate, copper chloride and zinc chloride. For that purpose, Fourier infrared spectrometer (FT-IR), VOCs test, thermogravimetric analysis (TGA), scanning electron microscope (SEM) and compression test are applied to analyze the samples aged and not. The results showed the composites had excellent oxidation-resistance capacity and improved mechanical properties while aging. The VOCs test showed the complete elimination of formaldehyde, acetaldehyde and propionaldehyde; the effectively suppressed emission of acetone, methacrolein, butyraldehyde; a slightly suppressed emission of acrolein and butanone, indicating the VOCs emission of PUF can be deducted effectively. This study may provide a new and practical method for reducing the VOCs emission of PUF and other materials.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-021-02524-y