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Open AccessArticle

Synergistic Influences of Stearic Acid Coating and Recycled PET Microfibers on the Enhanced Properties of Composite Materials

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CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, Université Paris-Saclay, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 3 rue des Rouges Terres, 51110 Pomacle, France
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Faculty of Material Science and Technology, University of Science-VNU, Ho Chi Minh city 700000, Vietnam
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Institute of Research and Development, Duy Tan University, Da Nang 550000, VietNam
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Center of Excellence for Green Energy and Environmental Nanomaterials ([email protected]), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Vietnam
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Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, Université Paris-Saclay, 8-10 rue Joliot-Curie, 91190 Gif-sur-Yvette, France
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Authors to whom correspondence should be addressed.
Materials 2020, 13(6), 1461; https://doi.org/10.3390/ma13061461
Received: 7 March 2020 / Revised: 18 March 2020 / Accepted: 20 March 2020 / Published: 23 March 2020
(This article belongs to the Special Issue Advanced Fiber-Reinforced Concrete Composites)
This study aims to produce novel composite artificial marble materials by bulk molding compound processes, and improve their thermal and mechanical properties. We employed stearic acid as an efficient surface modifying agent for CaCO3 particles, and for the first time, a pretreated, recycled, polyethylene terephthalate (PET) fibers mat is used to reinforce the artificial marble materials. The innovative aspects of the study are the surface treatment of CaCO3 particles by stearic acid. Stearic acid forms a monolayer shell, coating the CaCO3 particles, which enhances the compatibility between the CaCO3 particles and the matrix of the composite. The morphology of the composites, observed by scanning electron microscopy, revealed that the CaCO3 phase was homogeneously dispersed in the epoxy matrix under the support of stearic acid. A single layer of a recycled PET fibers mat was pretreated and designed in the core of the composite. As expected, these results indicated that the fibers could enhance flexural properties, and impact strength along with thermal stability for the composites. This combination of a pretreated, recycled, PET fibers mat and epoxy/CaCO3-stearic acid could produce novel artificial marble materials for construction applications able to meet environmental requirements. View Full-Text
Keywords: pretreatment calcium carbonate; composite artificial marble; stearic acid; recycled PET fibers; fiber-reinforced composite; SEM analysis pretreatment calcium carbonate; composite artificial marble; stearic acid; recycled PET fibers; fiber-reinforced composite; SEM analysis
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MDPI and ACS Style

Nguyen, D.M.; Vu, T.N.; Nguyen, T.M.L.; Nguyen, T.D.; Thuc, C.N.H.; Bui, Q.B.; Colin, J.; Perré, P. Synergistic Influences of Stearic Acid Coating and Recycled PET Microfibers on the Enhanced Properties of Composite Materials. Materials 2020, 13, 1461.

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