| 紫外光可固化纳米SiO2复合体系流变性的研究 |
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| 引用本文： | 周凤,李爱元.紫外光可固化纳米SiO2复合体系流变性的研究[J].淮北煤炭师范学院学报(自然科学版),2004,25(3):30-35. |
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| 作者姓名： | 周凤 李爱元 |
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| 作者单位： | 1. 淮北煤炭高级技工学校,安徽,淮北,235000
2. 中国兵器科学研究院宁波分院,浙江,宁波,315040 |
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| 摘 要： | 通过红外光谱表征纳米SiO2复合体系发现：纳米SiO2和有机基体间存在相互作用.对于二者的作用机理，提出了“核—过渡壳”结构模型.流变性能测试表明：纳米SiO2加入体系后，体系的最大动态表观粘度、最大剪切应力和触变指数分别提高了约40倍、约40倍和67.36％；纳米SiO2复合体系的剪切速率一粘度曲线，在低剪切速率下与高分子溶液相似，在高剪切速率下会发生“波动”.用“核—过渡壳”结构模型对纳米SiO2复合体系的流变行为进行了比较合理的解释.
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| 关 键 词： | 紫外光 纳米SiO2 复合体系 流变性 触变性 |
| 文章编号： | 1672-7177(2004)03-0030-06 |
| 修稿时间： | 2004年4月26日 |
Rheological Propertyes of Nano-SiO2 Composite System with Ultraviolet Light Curable |
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| ZHOU Feng ,LI Ai-yuan.Rheological Propertyes of Nano-SiO2 Composite System with Ultraviolet Light Curable[J].Journal of Huaibei Coal Industry Teachers College(Natural Science edition),2004,25(3):30-35. |
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| Authors: | ZHOU Feng LI Ai-yuan |
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| Institution: | ZHOU Feng 1,LI Ai-yuan 2 |
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| Abstract: | The interactions between some components in composite system contained nanosilica(CSN)and nanosilica were researched by means of infrared spectrum(IR).In order to explain the mechanism of the interactions,a core -transition sh ell structure(C -TS)model was brought forward.Comparin g to neat system with no nanosilica,results of rheological measurements showed that the biggest dynamic apparent viscosity,the biggest shear stress and thixotropy index of CSN were improved about 40times,about 40times and 67.36%,respectively.The curve of shear rate and viscosity of CSN resembled that of polymer solution at low shear rate,but a little waviness was observed at high shear rate.Characteristics of rheology of CSN were explained properly in virtue of C -TS model. |
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| Keywords: | composite system nanosilica rheo logy thixotropy |
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