| 纳米CaCO3-PVC增塑糊流变性能的研究 |
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| 引用本文： | 邹海魁,陈建峰,刘润静,王国全,王玉红.纳米CaCO3-PVC增塑糊流变性能的研究[J].北京化工大学学报(自然科学版),2002,29(3):5-8. |
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| 作者姓名： | 邹海魁 陈建峰 刘润静 王国全 王玉红 |
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| 作者单位： | 北京化工大学教育部超重力工程研究中心; 北京化工大学材料科学与工程学院 |
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| 基金项目： | 国家高技术研究发展计划(863计划);863-715-009-0080; |
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| 摘 要： | 主要研究了改性纳米CaCO3填充PVC糊树脂的流变性能。结果表明,改性纳米CaCO3/PVC增塑糊具有明显的切应力变稀性能和触变性能,与英国ICI公司生产的改性纳米CaCO3相比,北京化工大学超重力工程研究中心制备的改性纳米CaCO3填充的PVC增塑糊在高剪切速率下粘度相当的情况下低剪切速率时的粘度更高,环面积大一倍左右,具有更好的触变性能。
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| 关 键 词： | 改性纳米CaCO3 PVC糊树脂 切力变稀性能 触变性能 粘度 |
| 收稿时间： | 2001-09-27 |
| 修稿时间： | 2001年9月27日 |
Rheology of nano-calcium carbonate/PVC paste resin |
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| ZOU Hai-kui,CHEN Jian-feng,LIU Run-jing Wang Guo-quan Wang Yu-hong.Rheology of nano-calcium carbonate/PVC paste resin[J].Journal of Beijing University of Chemical Technology,2002,29(3):5-8. |
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| Authors: | ZOU Hai-kui CHEN Jian-feng LIU Run-jing Wang Guo-quan Wang Yu-hong |
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| Institution: | 1.Research Center of the Ministry of Education for High Gravity Engineering and Technology; 2.College of Materials Science and Engineering; Beijing University of Chemical Technology |
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| Abstract: | Rheology of PVC (poly(vinyl chloride)) paste resin filled with nano-sized calcium carbonate was investigated . It is found that the presence of nano-sized calcium carbonate has significantly improved the quality of thinning and thixotropy. The performance of commercially available nano-sized calcium carbonate (ICI, product coded winnofil) was compared with that of nano-sized calcium carbonate prepared by high gravity reactive precipitation technology developed by the authors. While both products have similar viscosity at a high shear rate, the latter shews to have lower viscosity at a low shear rate, which is desired for PVC paste resin with better thixotropy. |
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| Keywords: | surface modified nano-calcium carbonate PVC paste resin shear thinning thixotropy viscosity |
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