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不同纳米粒子对聚乳酸热性能的影响 被引量:5

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摘要 采用超声辅助、熔融共混的方法,将不同的纳米粒子对聚乳酸(PLLA)进行复合改性,利用热失重分析(TGA)、差示扫描量热法(DSC)、X-射线衍射分析(XRD)、FTIR等测试手段研究了不同纳米粒子对改性材料热性能的影响。研究发现:相同质量分数(1%)的不同纳米颗粒对PLLA的热稳定性的影响不同。含有NH2功能团的纳米SiO2(RNS)和含CH3功能团的纳米SiO2(DNS)的加入促进了PLLA热稳定性,乙烯基笼状倍半低聚硅氧烷(Vinyl-POSS)的加入对PLLA热稳定性影响不明显,而NLY101Ⅰ型纳米CaCO3则引起了PLLA热稳定性的大幅降低。同时,不同纳米粒子的加入对PLLA冷结晶、熔融和结晶都产生了影响。
出处 《河南化工》 CAS 2010年第16期36-39,共4页 Henan Chemical Industry
基金 河南省科技厅国际合作项目(094300510046)
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参考文献12

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共引文献13

同被引文献77

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