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| 丙烯酸酯核壳纳米粒子的合成及其改性环氧树脂 | |
| 引用本文： | 张绪刚,王巍,张斌.丙烯酸酯核壳纳米粒子的合成及其改性环氧树脂[J].中国胶粘剂,2009,18(9). |
| 作者姓名： | 张绪刚 王巍 张斌 |
| 作者单位： | 1. 哈尔滨工程大学材料科学与化学工程学院,黑龙江,哈尔滨,150001;黑龙江省科学院石油化学研究院,黑龙江,哈尔滨,150040 2. 哈尔滨工程大学材料科学与化学工程学院,黑龙江,哈尔滨,150001 3. 黑龙江省科学院石油化学研究院,黑龙江,哈尔滨,150040 |
| 摘 要： | 以丙烯酸丁酯(BA)为软单体、甲基丙烯酸甲酯(MMA)为硬单体和甲基丙烯酸缩水甘油脂(GMA)为官能单体,采用乳液聚合法合成出具有活性结构的BA/MMA/GMA核壳纳米粒子,并以此作为环氧树脂(EP)的增韧改性剂。研究结果表明:当w(核壳粒子)=10%、m(BA):m(MMA):m(GMA)=80:20:10时,与纯EP体系相比,改性EP体系的断裂伸长率提高了42.5%,剥高强度提高了近3倍,25℃和150℃时的剪切强度分别提高了48.6%和31.2%,坡璃化转变温度变化不大;红外光谱(FT-IR)证实,该核壳纳米粒子具有典型的特征吸收峰;透射电镜(TEM)观察结果表明,合成粒子具有纳米级核壳结构。 |
| 关 键 词： | 丙烯酸酯 核壳 纳米粒子 乳液 改性 环氧树脂 增韧 |
Synthesis of acrylate core-shell nano-particles as modifier of EP |
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| ZHANG Xu-gang,WANG Wei,ZHANG Bin.Synthesis of acrylate core-shell nano-particles as modifier of EP[J].China Adhesives,2009,18(9). | |
| Authors: | ZHANG Xu-gang WANG Wei ZHANG Bin |
| Affiliation: | ZHANG Xu-gang~(1,2),WANG Wei~1,ZHANG Bin~2 (1.School of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China,2.Institute Petrochemistry,HLJ Academy of Science,Harbin 150040,China) |
| Abstract: | With butyl acrylate(BA) as soft monomer,methyl methacrylate(MMA) as hard monomer and glycidyl methacrylate(GMA) as functional monomer,so a BA/MMA/GMA core-shell nano-particles with active structure was synthesized by emulsion polymerization.With the BA/MMA/GMA core-shell nano-particles as toughener of epoxy resin(EP),so the modified EP system was prepared.The research results showed that the elongation at break and peeling strength as well as shear strength at 25℃and 150℃of modified EP system were 42.5%,about 3 times, 48.6%and 31.2%more than of pure EP system respectively,but the change of glass transition temperature wasn't marked for modified EP system when the mass fraction of core-shell nano-particles was 10%,mass ratio of BA: MMA:GMA was 80:20:10.The analysis result by FT-IR showed that this core-shell nano-particles had typical characteristic absorption peak.The observed result by TEM showed that this synthesis particle had core-shell structure with nano level. |
| Keywords: | acrylate core-shell nano-particles emulsion modified EP toughness |
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