Cellulose fiber-reinforced thermosetting composites: impact of cyanoethyl modification on mechanical, thermal and morphological properties

This study explores the mechanical, thermal and morphological properties of untreated and cyanoethyl-treated kempas wood sawdust cellulose fiber-reinforced unsaturated polyester composites. The fiber loadings of the composites were varied from 0 to 20 wt%, with the increment of 5 wt%. The composites...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2019-08, Vol.76 (8), p.4295-4311
Main Authors: Rahman, Md Rezaur, Hamdan, Sinin, Ngaini, Zainab Binti, Jayamani, Elammaran, Kakar, Akshay, Bakri, Muhammad Khusairy Bin, Yusof, Fahmi Asyadi Bin Md
Format: Article
Language:English
Subjects:
Aluminum
Cellulose fibers
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Fiber composites
Fourier transforms
Hydroxyl groups
Infrared spectroscopy
Interfacial bonding
Mechanical tests
Moisture absorption
Morphology
Organic Chemistry
Original Paper
Physical Chemistry
Polyesters
Polymer Sciences
Polymers
Potash
Potassium
Resins
Sawdust
Soft and Granular Matter
Thermodynamic properties
Water absorption
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Summary:This study explores the mechanical, thermal and morphological properties of untreated and cyanoethyl-treated kempas wood sawdust cellulose fiber-reinforced unsaturated polyester composites. The fiber loadings of the composites were varied from 0 to 20 wt%, with the increment of 5 wt%. The composites were tested for water absorption, and their FTIR spectroscopy, SEM and TGA results were analyzed. The FTIR results show that the fiber treatment reduces the hydroxyl groups in the cellulose, replacing them with the cyanoethyl groups. The TGA results show that the composites are stable up to 324 °C. SEM images of the treated fiber composites showed that there were no visible gaps between fibers and matrix which indicates a strong interfacial bond. From the mechanical tests, 15 wt% fiber loading composite was strongest. Among all the composites, cyanoethyl cellulose fiber unsaturated polyester composites had the most desirable mechanical and thermal properties, whereas the fiber treatment showed the improvement of interfacial bonding.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-018-2598-1