Enhancing mechanical properties of PVC composites through surface composite modified calcium sulfate whiskers

• Autorzy: Zhang Yi-Ming , Wu Jinxiu , Lu Qi , Qin Si-Cheng , Liu Zhao-Gang , Hu Yan-Hong , Li Jian-Fei , Yang Dan-Hong

Identyfikatory

DOI

10.2478/msp-2024-0031

• Języki publikacji: EN

Abstrakty

EN

To enhance the high-value utilization of industrial wastewater, this study used ammonium sulfate wastewater discharged from a rare earth plant as a raw material for producing anhydrous calcium sulfate whiskers (CSWs) through a hydrothermal method. Subsequently, the whiskers underwent modification using a C₁₈H₃₆O₂–titanate coupling agent. The modification mechanism of CSW was investigated by comparing the surface contact angle before and after modification, along with characterization and analysis involving X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric-differential thermal analysis, and X-ray photoelectron spectroscopy. Finally, composite-modified calcium sulfate whiskers (CMCSWs) were incorporated into polyvinyl chloride (PVC) composites, and their mechanical properties were evaluated. The results indicated that at a modifier dosage of 15%, a modification time of 25 min, a modification temperature of 80°C, a stirring speed of 400 rpm, a drying temperature of 100°C, and a C₁₈H₃₆O₂-to-titanate coupling agent compound ratio of 1:2, the contact angle reached 124.45°, and a nanoscale hydrophobic layer with a thickness of 15.63 nm was formed on the surface. Regarding PVC reinforcement, the tensile strength and elongation at the break of PVC composite with 15 parts of CMCSW added increased by 73 and 262%, respectively, compared to the material without CSW. This CSW serves as an innovative reinforcing agent for PVC composites. The study developed modified CSW with high hydrophobicity, offering theoretical insights for effectively modifying fiber-type whiskers and their reinforcement in PVC applications.

Słowa kluczowe

EN

calcium sulfate whiskers; surface modification; nanoscale cladding; PVC composites; mechanical properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2024
• Tom: Vol. 42, No. 3
• Strony: 55--71
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Zhang Yi-Ming

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Wu Jinxiu

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Lu Qi

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Qin Si-Cheng

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Liu Zhao-Gang

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Hu Yan-Hong

• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China
• School of Materials Science and Engineering, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China

autor

Li Jian-Fei

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

autor

Yang Dan-Hong

• School of Metallurgical Future Technology, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Kunduz Shimron Area, Baotou, China
• Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Kunduz Shimron Area, Baotou, China

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