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Interrelationship between total volatile organic compounds emissions, structure and properties of natural rubber/polycaprolactone bio-blends cross-linked with peroxides
Abstract
Natural rubber/polycaprolactone (NR/PCL) bio-based blends with different organic peroxides were prepared using an internal batch mixer and subsequently cross-linked at 170°C. Two types of commonly used organic peroxides, dicumyl peroxide and di(tert-butylperoxyisopropyl)benzene peroxide, were applied as free-radical initiator. Cross-linking efficiency of NR/PCL blends were investigated using oscillating disc rheometer measurements, followed by infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, dynamic mechanical analysis and tensile testing. Total volatile organic compounds (TVOCs) emissions were determined using headspace analysis integrated with gas chromatography with flame ionization detector. Determined TVOCs emissions varying in range 21.6-52.1 μg/g and generally value of this parameter decreased with increasing content of PCL phase in studied blends or with application of more efficient di(tert-butylperoxyisopropyl)benzene peroxide as cross-linking agent. It was found that increasing of TVOCs parameter indicated deterioration of mechanical properties of NR/PCL blends, which corresponded with the changes in chemical structure and thermal properties of cross-linked NR/PCL. This confirms that evaluation of TVOCs parameter is interesting alternative for “conventional methods” to characterization of the studied bio-based blends.
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Authors (4)
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Shifeng Wang
- Shanghai Jiao Tong University, Shanghai, China Department of Polymer Science and Engineering
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Mohammad Saeb
- Institute for Color Science and Technology, Teheran, Iran Department of Resin and Additives
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
POLYMER TESTING
no. 60,
pages 405 - 412,
ISSN: 0142-9418 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Formela K., Marć M., Wang S., Saeb M.: Interrelationship between total volatile organic compounds emissions, structure and properties of natural rubber/polycaprolactone bio-blends cross-linked with peroxides// POLYMER TESTING. -Vol. 60, (2017), s.405-412
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.polymertesting.2017.04.024
- Verified by:
- Gdańsk University of Technology
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