大分子偶联剂的合成及其对SiO<sub>2</sub>/三元乙丙橡胶复合材料性能的影响

张洪文; 张杨; 姜彦; 俞强

doi:10.13801/j.cnki.fhclxb.20141021.004

大分子偶联剂的合成及其对SiO₂/三元乙丙橡胶复合材料性能的影响

doi: 10.13801/j.cnki.fhclxb.20141021.004

张洪文^1,,
张杨¹,
姜彦^1,2,3,
俞强¹

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

基金项目: 国家自然科学基金青年基金(51203015);中国博士后科学基金(2014M551602);江苏省产学研前瞻项目(BY2014037-05,BY2013024-21);江苏省工业支撑计划(BE2014821)

详细信息

通讯作者:
张洪文,博士,副教授,研究方向为材料表面修饰功能高分子合成等。E-mail:hwzhang@cczu.edu.cn

中图分类号: TQ314.24
计量
- 文章访问数: 806
- PDF下载量: 540
- 被引次数: 0
出版历程
- 收稿日期: 2014-08-18
- 修回日期: 2014-09-26
- 刊出日期: 2015-08-15

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

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

摘要

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、¹H-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。
- 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
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