| 端羟基液体聚丁二烯的流变性质 |
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| 引用本文： | 江家奇,王兰琴.端羟基液体聚丁二烯的流变性质[J].应用化学,1986,0(4):22-25. |
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| 作者姓名： | 江家奇 王兰琴 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 本文研究了端羟基液体聚丁二烯(丁羟)的流变性质,它是剪切速率、温度和分子量的函数。测量是在HAAKE RV2锥板式粘度计上进行的,温度15—70℃,剪切速度0—2,275s-1。 当丁羟本体粘度小于1Pa?s,剪切速率低于650s-1时,其流动行为基本为牛顿型,在其它条件下则为非牛顿型。当丁羟分子量在1,000—5,600范围内,其本体粘度与温度关系符合经验公式:logηa=A+B/T。我们也确立了本体粘度与数均分子量的关系,在20℃时ηa=2.09×10-8Mn2?52,在25℃时为ηa=1.14×10-8Mn2?55。
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| 收稿时间： | 1985-05-24 |
| 修稿时间： | 1985-10-31 |
RHEOLOGICAL PROPERTY OF LIQUID HYDROXY-TERMINATED POLYBUTADIENE |
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| Jiang Jiaqi,Wang Lanqin.RHEOLOGICAL PROPERTY OF LIQUID HYDROXY-TERMINATED POLYBUTADIENE[J].Chinese Journal of Applied Chemistry,1986,0(4):22-25. |
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| Authors: | Jiang Jiaqi Wang Lanqin |
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| Institution: | Changchun Institute of Applied Chemistry, Academia Sinica |
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| Abstract: | The rheological property of liquid hydroxy-terminated polybutadiene (HTPB) was studied as a function of shear rate,temperature and its molecular weight. Measurements were made in the temperature from 15 to 70℃ and shear rate range from 0 to 2279s-1. The flow behavior of HTPB is found to be essentially Newtonian. When bulk vis-cosity is below 1 Pa. sec. and shear rate below 650 s-1., but it is also a non-Newto-nian under other conditions.The results concerning the relationship between bulk visco-sity and temperature are following the empirical equation:logηa=A+B/T, when the molecular weight of HTPB is 1,000—5,600.The relation between bulk viscosity and number average molecular weight was established as ηa=2.09×10-8Mn2?52 and ηa=1.14×10-8Mn2?55 at 20 and 25℃, respectively. |
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