Study on dielectric and mechanical properties of cerium oxide⁃modified polypropylene composites

doi:10.19491/j.issn.1001-9278.2025.06.005

Abstract

Abstract:

NH₂⁃CeO₂/MAPP/PP/POE composites were synthesized through amino⁃functionalized CeO₂ modification， incorporating maleic anhydride⁃grafted polypropylene （MAPP） as a compatibilizer to improve dispersion within the polypropylene （PP） matrix， and blending with polyolefin elastomer （POE）. The dielectric， thermal， and mechanical properties of the composites were systematically investigated. The results demonstrated that increasing the POE content elevated both the dielectric constant and dielectric loss of the composites. At a test frequency of 1 kHz and a POE mass fraction of 11 %， the NH₂⁃CeO₂/MAPP/PP/POE composite achieved optimal performance with a maximum dielectric constant of 4.23， accompanied by a dielectric loss of 0.0183 and elongation at break of 66.7 %.

Key words: cerium oxide, polyolefin elastomer, polypropylene, dielectric property, mechanical property

CLC Number:

TQ325.1⁺4

ZHU Kuilin, LYU Chong, GUO Lei, CHEN Yilin, HUANG Yifeng, ZHAO Peiqi, JIANG Xueliang, YOU Feng. Study on dielectric and mechanical properties of cerium oxide⁃modified polypropylene composites[J]. China Plastics, 2025, 39(6): 19-23.

Figures/Tables 8

Fig.1. FTIR spectra of CeO2 and NH2⁃CeO2

Fig.2. NH2⁃CeO2/MAPP/PP composites （a） dielectric constant and （b） dielectric loss

Fig.3. （a）Tensile strength and （b） elongation at break of NH2⁃CeO2/MAPP/PP composites

Fig.4. Cross⁃sectional morphologies of NH2⁃CeO2/MAPP/PP/ composites

Fig.5. NH2⁃CeO2/MAPP/PP/POE composite （a） dielectric constant and （b） dielectric loss

Fig.6. （a） Tensile strength and （b） elongation at break of NH2⁃CeO2/MAPP/PP/POE composites

Fig.7. Cross⁃sectional morphologies of NH2⁃CeO2/MAPP/PP/POE composites

Fig.8. Vicat softening temperature of composites

References 18

1	Natalie Flores⁃Diaz， De Rossi Francesca， Aparajita Das， et al. Progress of Photocapacitors ［J］. Chemical Reviews， 2023， 123（15）：9 327⁃9 355.
2	Michael Hoffmann， Fengler Franz Paul Gustav， Benjamin Max， et al. Negative Capacitance for Electrostatic Supercapacitors ［J］. Advanced Energy Materials， 2019，9（40）：1901154.
3	Li Zhengping， Jiao Xiuling， Li Cheng， et al. Synthesis and application of nanocages in supercapacitors ［J］. Chemical Engineering Journal， 2018，351（1）：135⁃156.
4	Zhu Qiancheng， Zhao Danyang， Cheng Mingyu， et al. A New View of Supercapacitors： Integrated Supercapacitors ［J］. Advanced Energy Materials， 2019， 9（36）：1901081.1⁃1901081.11.
5	Liu Wenfeng， Cheng Lu， Li Shengtao. Review of electrical properties for polypropylene based nanocomposite ［J］. Composites Communications， 2018， 10：221⁃225.
6	Cui Rui， Ding Jianping， Chen Yukun. Magnesium acrylate induced interfacial compatibilization of EPDM/PP thermoplastic vulcanizate and shape memory behavior ［J］. Composites Part A： Applied Science and Manufacturing， 2019， 122：27⁃35.
7	Hou Jiarui， Zhong Ming， Pan Xiaolong， et al. Fabricating 3D printable BIIR/PP TPV via masterbatch and interfacial compatibilization ［J］. Composites Part B： Engineering， 2020， 199（15）：108220.
8	Liu Shan Shan， Ge He Yi， Zou Yu， et al. Properties of PP Wood⁃Plastic Composites with Biocompatibility Additives ［J］. Materials Science Forum， 2019， 944（PT.1）：509⁃514.
9	Luna Carlos Bruno Barreto， Siqueira Danilo Diniz， Araújo Edcleide Maria， et al. Evaluation of the SEBS copolymer in the compatibility of PP/ABS blends through mechanical， thermal， thermomechanical properties， and morphology ［J］. Polymers for Advanced Technologies， 2021，33（1）：111⁃124
10	Yao Junlong， Hu Li， Zhou Min， et al. Synergistic Enhancement of Thermal Conductivity and Dielectric Properties in Al₂O₃/BaTiO₃/PP Composites ［J］. Materials， 2018， 11（9）：1 536.
11	Han Lijing， Wang Hairui， Tang Q.， et al. Preparation of graphene/polypropylene composites with high dielectric constant and low dielectric loss constructing a segregated graphene network ［J］. RSC Advances， 2021， 11（60）：38 264⁃38 272.
12	Nicusor Fifere， Anton Airinei， Mihai Asandulesa， et al. Investigating the Vibrational， Magnetic and Dielectric Properties， and Antioxidant Activity of Cerium Oxide Nanoparticles ［J］. International Journal of Molecular Sciences， 2022， 23（22）：13 883.
13	Suhailath K， Ramesan M T. Effect of ceria nanoparticles on mechanical properties， thermal and dielectric properties of poly （butyl methacrylate） nanocomposites ［J］. Polymer Composites， 2020， 41（6）：2 344⁃2 354.
14	Sridhar M， Setty R N V， Johns J. Electrical Properties of Bamboo Fiber Reinforced Polypropylene Composite： Effect of Coupling Agent ［J］. Journal of Natural Fibers， 2022， 19（13）：5 076⁃5 087.
15	Chi XiaoHong， Cheng Lu， Liu Wenfeng， et al. Characterization of Polypropylene Modified by Blending Elastomer and Nano⁃Silica ［J］. Materials， 2018， 11（8）：1 321.
16	Zhong Shaoyuan， Xie Junhao， Liu Xiaome， et al. Improved Dielectric and Energy Storage Properties of Polypropylene⁃Based Organic Films through Construction of a Microcompatible “Sea⁃Island”Structure ［J］. ACS Applied Polymer Materials，2024，6 （13）：7 449⁃7 457.
17	He Wenjun， Ye Lin， Phil Coates， et al. Reactive processing of poly（lactic acid）/poly（ethylene octene） blend film with tailored interfacial intermolecular entanglement and toughening mechanism ［J］. Journal of Materials Science & Technology， 2022， 98：186⁃196.
18	Ma Yuling， Wu Daming， Liu Ying， et al. Electrically conductive and super⁃tough polypropylene/carbon nanotube nanocomposites prepared by melt compounding ［J］. Composites Part B： Engineering， 2014， 56：384⁃391.

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