原位反应法制备聚酰亚胺Nano-SiO2杂化膜及其性能研究
原位反应法制备聚酰亚胺Nano-SiO2杂化膜及其性能研究[20200412230008]
摘 要
聚酰亚胺(PI)的耐电晕性相对较低限制了它在高压发电机、高压电动机、变频电机等上的应用。将纳米Si02等无机材料均匀分散到聚酰亚胺中，并保持相当的稳定性成为制备耐电晕材料的关键技术。
本课题采用原位反应法制备聚酰亚胺/Nano-SiO2杂化膜和聚酰亚胺/Nano-SiO2杂化膜漆包线。
对原位反应法制备聚酰胺酸/Nano-SiO2前驱体悬浮体系及工艺条件进行探索；评价了聚酰胺酸/Nano-SiO2前驱体悬浮体系的储存稳定性；对聚酰胺酸/Nano-SiO2悬浮体系和聚酰亚胺/Nano-SiO2杂化膜漆包线进行FIR、TGA、SEM、力学性能和耐电压性能等研究。结果表明：聚酰胺酸/Nano-SiO2前驱体悬浮体可在室温密闭条件稳定存放30天；聚酰亚胺/Nano-SiO2杂化膜热亚胺化较完全；聚酰亚胺/Nano-SiO2杂化膜耐热性优异，热分解温度达590℃；Nano-SiO2含量为2%时，聚酰亚胺/Nano-SiO2杂化膜的拉伸强度达到最大值122MPa，Nano-SiO2含量为10%时，聚酰亚胺/Nano-SiO2杂化膜的击穿电压达到3.72Kv；聚酰亚胺/Nano-SiO2杂化膜无明显相分离，聚酰亚胺与Nano-Si02网络形成了互穿结构。
*查看完整论文请 +Q: 3 5 1 9 1 6 0 7 2
关键字:聚酰亚胺原位法Nano-SiO2杂化膜
目录
1绪论.......................................................................................................................1
1.1聚酰亚胺简介............................................................................................................2
1.1.1 聚酰亚胺的合成................................................................................................2
1.1.2 聚酰亚胺的性能................................................................................................3
1.1.3 聚酰亚胺的应用................................................................................................4
1.2聚酰亚胺的改性............................................................................................ 5
1.2.1 分子结构改造...............................................................................................................5
1.2.2 聚酰亚胺复合改性.......................................................................................................5
1.2.3 无机纳米粒子杂化改性聚酰亚胺的研究进展...........................................................7
1.3论文选题及研究内容..........................................................................................................9
1.3.1 论文选题.....................................................................................................................9
1.3.2 研究内容.....................................................................................................................10
2 实验部分.............................................................................................................11
2.1 原料与试剂........................................................................................................................11
2.2 仪器与设备........................................................................................................................11
2.3 实验方法............................................................................................................................11
2.3.1 聚酰胺酸/水解正硅酸四乙酯悬浮液的制备............................................................11
2.3.2 聚酰亚胺/Nano-SiO2杂化膜的制备...........................................................................11
2.3.3 聚酰胺酸/水解正硅酸四乙酯体系稳定性分析方法................................................12
2.3.4 聚酰亚胺/Nano-SiO2杂化膜红外光谱表征..............................................................12
2.3.5 聚酰亚胺/Nano-SiO2杂化膜TGA表征.....................................................................12
2.3.6 聚酰亚胺/Nano-SiO2杂化膜力学性能分析方法......................................................12
2.3.7 聚酰亚胺/Nano-SiO2杂化膜漆包线耐电压性能分析..............................................12
2.3.8聚酰亚胺/Nano-SiO2杂化膜的扫描电镜（SEM）分析.....................................12
3 结果与讨论....................................................................................................14
3.1聚酰胺酸制备工艺条件优化..............................................................................................14
3.1.1 原料配比的影响.........................................................................................................14
3.1.2 反应温度对聚酰胺酸粘度的影响.............................................................................14
摘 要
聚酰亚胺(PI)的耐电晕性相对较低限制了它在高压发电机、高压电动机、变频电机等上的应用。将纳米Si02等无机材料均匀分散到聚酰亚胺中，并保持相当的稳定性成为制备耐电晕材料的关键技术。
本课题采用原位反应法制备聚酰亚胺/Nano-SiO2杂化膜和聚酰亚胺/Nano-SiO2杂化膜漆包线。
对原位反应法制备聚酰胺酸/Nano-SiO2前驱体悬浮体系及工艺条件进行探索；评价了聚酰胺酸/Nano-SiO2前驱体悬浮体系的储存稳定性；对聚酰胺酸/Nano-SiO2悬浮体系和聚酰亚胺/Nano-SiO2杂化膜漆包线进行FIR、TGA、SEM、力学性能和耐电压性能等研究。结果表明：聚酰胺酸/Nano-SiO2前驱体悬浮体可在室温密闭条件稳定存放30天；聚酰亚胺/Nano-SiO2杂化膜热亚胺化较完全；聚酰亚胺/Nano-SiO2杂化膜耐热性优异，热分解温度达590℃；Nano-SiO2含量为2%时，聚酰亚胺/Nano-SiO2杂化膜的拉伸强度达到最大值122MPa，Nano-SiO2含量为10%时，聚酰亚胺/Nano-SiO2杂化膜的击穿电压达到3.72Kv；聚酰亚胺/Nano-SiO2杂化膜无明显相分离，聚酰亚胺与Nano-Si02网络形成了互穿结构。
*查看完整论文请 +Q: 3 5 1 9 1 6 0 7 2
关键字:聚酰亚胺原位法Nano-SiO2杂化膜
目录
1绪论.......................................................................................................................1
1.1聚酰亚胺简介............................................................................................................2
1.1.1 聚酰亚胺的合成................................................................................................2
1.1.2 聚酰亚胺的性能................................................................................................3
1.1.3 聚酰亚胺的应用................................................................................................4
1.2聚酰亚胺的改性............................................................................................ 5
1.2.1 分子结构改造...............................................................................................................5
1.2.2 聚酰亚胺复合改性.......................................................................................................5
1.2.3 无机纳米粒子杂化改性聚酰亚胺的研究进展...........................................................7
1.3论文选题及研究内容..........................................................................................................9
1.3.1 论文选题.....................................................................................................................9
1.3.2 研究内容.....................................................................................................................10
2 实验部分.............................................................................................................11
2.1 原料与试剂........................................................................................................................11
2.2 仪器与设备........................................................................................................................11
2.3 实验方法............................................................................................................................11
2.3.1 聚酰胺酸/水解正硅酸四乙酯悬浮液的制备............................................................11
2.3.2 聚酰亚胺/Nano-SiO2杂化膜的制备...........................................................................11
2.3.3 聚酰胺酸/水解正硅酸四乙酯体系稳定性分析方法................................................12
2.3.4 聚酰亚胺/Nano-SiO2杂化膜红外光谱表征..............................................................12
2.3.5 聚酰亚胺/Nano-SiO2杂化膜TGA表征.....................................................................12
2.3.6 聚酰亚胺/Nano-SiO2杂化膜力学性能分析方法......................................................12
2.3.7 聚酰亚胺/Nano-SiO2杂化膜漆包线耐电压性能分析..............................................12
2.3.8聚酰亚胺/Nano-SiO2杂化膜的扫描电镜（SEM）分析.....................................12
3 结果与讨论....................................................................................................14
3.1聚酰胺酸制备工艺条件优化..............................................................................................14
3.1.1 原料配比的影响.........................................................................................................14
3.1.2 反应温度对聚酰胺酸粘度的影响.............................................................................14
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