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中国塑料 ›› 2022, Vol. 36 ›› Issue (8): 1-9.DOI: 10.19491/j.issn.1001-9278.2022.08.001
• 材料与性能 • 下一篇
收稿日期:
2022-04-06
出版日期:
2022-08-26
发布日期:
2022-08-22
通讯作者:
杨荣杰(1963—),男,教授,从事功能阻燃材料与含能材料研究,yrj@bit.edu.cn基金资助:
DONG Youbang1, ZHANG Zeqi1,2, YANG Rongjie1,2()
Received:
2022-04-06
Online:
2022-08-26
Published:
2022-08-22
Contact:
YANG Rongjie
E-mail:yrj@bit.edu.cn
摘要:
由3-氨基丙基三甲氧基硅烷(NH2-propyl-silane)出发,在碱催化条件下采用水解缩合一锅法合成了笼形氨丙基硅倍半氧烷(NH2-propyl-POSS)。红外光谱、核磁共振、电喷雾飞行质谱(ESI-TOF)表征结果表明,合成产物NH2-propyl-POSS是不同大小笼形结构的混合物,其中T8、T9、T10笼形结构含量较高。由NH2-propyl-POSS分别与乙酸和丙炔酸进行酰胺化反应,进一步合成了乙酰基丙基POSS(CH3-CONH-POSS)和丙炔酰基丙基POSS(CH≡C—CONH-POSS),并通过红外光谱、氢谱、碳谱分析表征了其结构。X射线衍射分析结果表明,3种POSS均为非晶态结构。通过热重分析可知,NH2-propyl-POSS具有较高的热稳定性。将NH2-propyl-POSS用于提高环氧树脂(EP)的热稳定性,添加量为5 %(质量分数,下同)时,EP/NH2-propyl-POSS共混物的玻璃化转变温度(Tg)提高至180.7 ℃,极限氧指数(LOI)为25.2 %。
中图分类号:
董佑邦, 张泽祺, 杨荣杰. 氨丙基低聚硅倍半氧烷及其酰胺化产物的合成与表征[J]. 中国塑料, 2022, 36(8): 1-9.
DONG Youbang, ZHANG Zeqi, YANG Rongjie. Synthesis and characterization of aminopropyl oligomeric silsesquioxane and its amidation products[J]. China Plastics, 2022, 36(8): 1-9.
样品 | E⁃44/g | DDS/g | NH2⁃propyl⁃POSS/g |
---|---|---|---|
EP | 100 | 30 | 0 |
EP/1 % NH2⁃propyl⁃POSS | 100 | 30 | 1.313 |
EP/3 % NH2⁃propyl⁃POSS | 100 | 30 | 4.022 |
EP/5 % NH2⁃propyl⁃POSS | 100 | 30 | 6.842 |
样品 | E⁃44/g | DDS/g | NH2⁃propyl⁃POSS/g |
---|---|---|---|
EP | 100 | 30 | 0 |
EP/1 % NH2⁃propyl⁃POSS | 100 | 30 | 1.313 |
EP/3 % NH2⁃propyl⁃POSS | 100 | 30 | 4.022 |
EP/5 % NH2⁃propyl⁃POSS | 100 | 30 | 6.842 |
样品 | Tonset/℃ | Tmax1/℃ | Tmax2/℃ | 残余质量/% |
---|---|---|---|---|
NH2⁃propyl⁃POSS | 274.6 | 331.1 | 470.3 | 44.15 |
CH≡C—CONH⁃POSS | 144.3 | 177.9 | 438.9 | 41.86 |
CH3⁃CONH⁃POSS | 128.8 | 124.9 | 436.4 | 41.74 |
样品 | Tonset/℃ | Tmax1/℃ | Tmax2/℃ | 残余质量/% |
---|---|---|---|---|
NH2⁃propyl⁃POSS | 274.6 | 331.1 | 470.3 | 44.15 |
CH≡C—CONH⁃POSS | 144.3 | 177.9 | 438.9 | 41.86 |
CH3⁃CONH⁃POSS | 128.8 | 124.9 | 436.4 | 41.74 |
样品 | Tonset/℃ | Tmax/℃ | 残余质量/% | Tg/℃ |
---|---|---|---|---|
EP | 386.0 | 427.9 | 12.05 | 174.3 |
EP/1 % NH2⁃propyl⁃POSS | 378.2 | 424.8 | 12.75 | 176.5 |
EP/3 % NH2⁃propyl⁃POSS | 377.0 | 424.6 | 13.34 | 179.5 |
EP/5 % NH2⁃propyl⁃POSS | 378.8 | 423.3 | 14.23 | 180.7 |
样品 | Tonset/℃ | Tmax/℃ | 残余质量/% | Tg/℃ |
---|---|---|---|---|
EP | 386.0 | 427.9 | 12.05 | 174.3 |
EP/1 % NH2⁃propyl⁃POSS | 378.2 | 424.8 | 12.75 | 176.5 |
EP/3 % NH2⁃propyl⁃POSS | 377.0 | 424.6 | 13.34 | 179.5 |
EP/5 % NH2⁃propyl⁃POSS | 378.8 | 423.3 | 14.23 | 180.7 |
样品 | LOI/% |
---|---|
EP | 22.0 |
EP/1 % NH2⁃propyl⁃POSS | 22.4 |
EP/3 % NH2⁃propyl⁃POSS | 24.8 |
EP/5 % NH2⁃propyl⁃POSS | 25.2 |
样品 | LOI/% |
---|---|
EP | 22.0 |
EP/1 % NH2⁃propyl⁃POSS | 22.4 |
EP/3 % NH2⁃propyl⁃POSS | 24.8 |
EP/5 % NH2⁃propyl⁃POSS | 25.2 |
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