与SEBS-g-MAH进行协同增强,以提高GO/rGO填充PC/ABS复合材料的热稳定性和可加工性
Fatin Najwa Joynal Abedin1, Ahmad Noor Syimir Fizal2, Abbas F M Alkarkhi3
1Malaysian Institute of Chemical and Bioengineering Technology, University Kuala Lumpur, Alor Gajah 78000, Melaka, Malaysia.
Polymers
|September 28, 2024
概括
SEBS-g-MAH通过提高机械强度和热稳定性来增强聚合物复合材料. 这项研究显示了PC/ABS/GO和PC/ABS/rGO复合材料的协同效应,增强了冲击强度和融流动性等性能.
科学领域:
- 聚合物科学与工程 聚合物科学与工程
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
背景情况:
- 热塑性复合材料从兼容剂中受益,这些兼容剂可以改善机械,热和质性质.
- 聚碳酸/烯酸-丁-烯酸 (PC/ABS) 混合物被广泛使用,但可以使用如石墨烯氧化物 (GO) 和减少石墨烯氧化物 (rGO) 等填充剂来改进.
- 兼容剂对于有效分散和聚合物矩阵和纳米填充剂之间的界面粘附至关重要.
研究的目的:
- 研究SEBS-g-MAH作为PC/ABS/GO (PAGO) 和PC/ABS/rGO (PArGO) 复合材料中的兼容剂的协同作用.
- 评估SEBS-g-MAH对这些复合材料的机械 (破裂时延长,冲击强度),热 (热稳定性) 和热学 (融流动性) 性能的影响.
- 用富里埃变换红外光谱学 (FTIR) 来确认兼容机制.
主要方法:
- 使用融混合将SEBS-g-MAH,GO和rGO纳入PC/ABS矩阵中.
- 热重力测量分析 (TGA) 和融化流量指数 (MFI) 用于评估热稳定性和可加工性.
- 福利埃变换红外光谱法 (FTIR) 用于确认界面相互作用和兼容效应.
主要成果:
- SEBS-g-MAH显著改善了断裂时的延伸,PAGO的延伸高达33%,PArGO的延伸高达73%.
- PAGO复合材料的冲击强度与5phr SEBS-g-MAH相协同增加了75% .
- 热稳定性得到改善,降解温度 (T80%) 在1phr SEBS-g-MAH时在PAGO中增加了高达17%;融化流动性 (MFI) 在PC/ABS中增加了高达38%.
结论:
- SEBS-g-MAH作为PC/ABS/GO和PC/ABS/rGO复合材料的有效兼容剂,表现出协同效应的改善.
- 加入SEBS-g-MAH可以增强关键性能,包括机械强度,热稳定性和化可加工性.
- FTIR分析证实了SEBS-g-MAH通过与矩阵和填充剂的相互作用的兼容性作用,突出了其对先进聚合物复合材料的潜力.
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