Thermal and flammability properties of wollastonite-filled thermoplastic composites: a review
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Thermal and flammability properties of wollastonitefilled thermoplastic composites: a review Joon Fatt Wong1, Jia Xin Chan1, Azman Hassan1,* Norhayani Othman1 1
, Zurina Mohamad1, and
School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Malaysia
Received: 10 May 2020
ABSTRACT
Accepted: 1 September 2020
Wollastonite has a huge potential to be utilized as a functional filler in the thermoplastic composites, providing an enhancement to the mechanical strength, as well as thermal stability and flame retardancy, thus replacing the other conventional fillers such as glass fibre and talc. Due to the reinforcing ability and good thermal stability of wollastonite, the wollastonite-filled polymer composites have attracted the attention of academicians and industrialists. Many studies are reported on the effect of wollastonite incorporation into the polymers, in the aspect of mechanical, thermal, and flammability properties, meanwhile exploring the potential of wollastonite usage in the desired applications. This review article will be focusing on the thermal and flammability properties of wollastonite-filled thermoplastic composites. The popular thermoplastics used as the matrix are polypropylene, polylactic acid, and poly(ethylene terephthalate). Studies on flammability properties of wollastonite-filled thermoplastic composites are relatively less compared to thermal properties. Generally, the properties of the composites are influenced by the wollastonite dispersion, loading, size and shape of wollastonite, and its interfacial adhesion with the polymer matrix. Most of the previous studies focused on thermoplastic filled natural micro-sized wollastonite composites. Thus, the effect of nano-sized synthetic wollastonite as a functional filler in polymers is worth investigating. Further research on hybrid wollastonite/nanofillers is also interesting to develop high-performance materials to meet the requirements of society and industries.
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
Handling Editor: Maude Jimenez.
Address correspondence to E-mail: [email protected]
https://doi.org/10.1007/s10853-020-05255-5
J Mater Sci
GRAPHIC ABSTRACT
Introduction Polymers have widely used as the replacement for many other materials, such as metals, ceramics, glass, and wood, due to their high productivity, easy processing, and lightweight. In the comparison between thermoplastics and thermosets, thermoplastics are preferable because of their high versatility and recyclability. Most of the commercialized polymeric materials are composite materials, which are produced from two or more materials, and consist of the polymer matrix and fillers. This is to obtain the desired and enhanced properties of polymer composites, for meeting the requirement of the market, industry, and society [1]. Wollastonite is one of the fillers that are able to give enhancement to the polymer composites in the aspect of mechanical properties, as well as thermal pro
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