| 大分子偶联剂的合成及其对SiO_2/三元乙丙橡胶复合材料性能的影响 |
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| 引用本文： | 张洪文,张杨,姜彦,俞强.大分子偶联剂的合成及其对SiO_2/三元乙丙橡胶复合材料性能的影响[J].复合材料学报,2015,32(4):969-976. |
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| 作者姓名： | 张洪文 张杨 姜彦 俞强 |
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| 作者单位： | 1. 常州大学 材料科学与工程学院, 常州 213164;
2. 南京林业大学 材料科学与工程学院, 南京 210037;
3. 江苏晨光涂料有限公司, 常州 213154 |
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| 摘 要： | 为改善SiO2在三元乙丙橡胶(EPDM)复合材料中的分散性并获得良好界面性能,通过传统自由基聚合法合成了一系列不同接枝率的大分子偶联剂,即EPDM、甲基丙烯酸甲酯(MMA)和γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)的三元共聚物。采用不同接枝率的大分子偶联剂对SiO2/EPDM复合材料进行改性。通过FTIR、1 H-NMR、TGA、DMA和SEM对三元共聚物的结构和SiO2/EPDM复合材料的性能进行研究。结果表明:添加了大分子偶联剂的SiO2/EPDM复合材料的相容性得到了显著改善,拉伸强度和撕裂强度比未经偶联剂处理的SiO2/EPDM复合材料分别提高了109.4%和44.0%;SiO2表面改性后的SiO2/EPDM复合材料的储能模量和玻璃化转变温度有所升高。
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| 关 键 词： | 三元乙丙橡胶 SiO2 复合材料 界面 接枝率 大分子偶联剂 相容性 |
| 收稿时间： | 2014-08-18 |
Synthesis of macromolecular coupling agent and its effects on properties of SiO2/ethylene-propylene-diene monomer composites |
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| ZHANG Hongwen,ZHANG Yang,JIANG Yan,YU Qiang.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. |
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| Authors: | ZHANG Hongwen ZHANG Yang JIANG Yan YU Qiang |
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| Affiliation: | 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 |
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| Abstract: | To obtain good dispersion and interface properties of SiO2 in 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. |
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| Keywords: | ethylene-propylene-diene monomer SiO2 composites interface grafting ratio ingmacromolecular coupling agent compatibility |
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