Synthesis of macromolecular coupling agent and its effects on properties of SiO<sub>2</sub>/ethylene-propylene-diene monomer composites

ZHANG Hongwen; ZHANG Yang; JIANG Yan; YU Qiang

doi:10.13801/j.cnki.fhclxb.20141021.004

Volume 32 Issue 4

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ZHANG Hongwen, ZHANG Yang, JIANG Yan, et al. Synthesis of macromolecular coupling agent and its effects on properties of SiO2/ethylene-propylene-diene monomer composites[J]. Acta Materiae Compositae Sinica, 2015, 32(4): 969-976. doi: 10.13801/j.cnki.fhclxb.20141021.004

Citation:

ZHANG Hongwen, ZHANG Yang, JIANG Yan, et al. Synthesis of macromolecular coupling agent and its effects on properties of SiO₂/ethylene-propylene-diene monomer composites[J]. Acta Materiae Compositae Sinica, 2015, 32(4): 969-976. doi: 10.13801/j.cnki.fhclxb.20141021.004

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Synthesis of macromolecular coupling agent and its effects on properties of SiO₂/ethylene-propylene-diene monomer composites

doi: 10.13801/j.cnki.fhclxb.20141021.004

1.
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China;
2.
School of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;
3.
Jiangsu Chenguang Coatings Company Limited, Changzhou 213154, China

Received Date: 2014-08-18
Rev Recd Date: 2014-09-26
Publish Date: 2015-08-15

Abstract

Abstract

To obtain good dispersion and interface properties of SiO₂in ethylene-propylene-diene monomer (EPDM) composites, a series of macromolecular coupling agents with different grafting ratios were synthesized by conventional free radical polymerization, that is EPDM, methyl methacrylate (MMA) and γ-methacryloxypropyltrimethoxy silane (KH-570) terpolymer. The macromolecular coupling agents with different grafting ratios were used to modify SiO₂/EPDM composites. FTIR, ¹H-NMR, TGA, DMA and SEM were used to characterize the structure of terpolymer and properties of SiO₂/EPDM composites. The results show that the compatibility of SiO₂/EPDM composites is improved significantly after SiO₂ surface treated by macromolecular coupling agent. The tensile and tear strength of SiO₂/EPDM composites is increased up to 109.4% and 44.0% respectively when comparing with the composites without coupling agent. The storage modulus and glass transition temperature of SiO₂/EPDM composites have been increased after SiO₂ surface treatment.
- ethylene-propylene-diene monomer,
- SiO₂,
- composites,
- interface,
- grafting ratio,
- ingmacromolecular coupling agent,
- compatibility
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