基于基斯勒尔法中间相沥青的流变性质

金鸣林; 程洁羚; 王连星; 金双玲; 张睿

doi:10.1016/S1872-5805(15)60183-4

基于基斯勒尔法中间相沥青的流变性质

doi: 10.1016/S1872-5805(15)60183-4

上海应用技术学院材料科学与工程学院, 上海201418

基金项目: 上海地方院校能力建设项目(12160503600);上海市教育委员会一流学科建设项目(J201212);上海市科学技术发展项目(09520500700);国家自然科学基金(U1332107);上海应用技术学院复合材料建设基金(10210Q140001).

详细信息

通讯作者:
金鸣林,教授. E-mail: Jinml@sh163.net

中图分类号: TQ522.63
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- 文章访问数: 635
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- PDF下载量: 912
- 被引次数: 0
出版历程
- 收稿日期: 2015-02-11
- 录用日期: 2015-05-04
- 修回日期: 2015-04-12
- 刊出日期: 2015-04-28

Rheological properties of mesophase pitch investigated by the Giseeler fluidity method

School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China

Funds: Capacity Building Program of Shanghai Local Universities (12160503600); First-class Discipline Construction Fund of Shanghai Municipal Education Commission (J201212); Shanghai Science and Technology Development Fund (09520500700); National Natural Science Foundation of China (U1332107); Key Discipline Construction Fund of Composite Materials of Shanghai Institute of Technology (10210Q140001).

摘要

摘要: 用基斯勒尔法研究了热处理前后(室温~520 ℃)相沥青的流变性质。结果表明:在不同温度和不同加热速率下,基斯勒尔流动度具有很好的重现性。未经热处理的中间相沥青的流动度在253~282 ℃之间随温度增加缓慢增加,在282~311 ℃随温度增加呈现指数增大,在282~498 ℃几乎不变。热处理的沥青的流动度也随温度增加呈现类似的S型的变化规律,其中指数增加段可以用阿伦尼乌斯公式计算其粘流活化能。沥青的甲苯不溶物含量随热处理时间增大从67.3%增大到88.7%,粘流活化能为203.6~294 kJ/mol。
- 流变学 /
- 基氏流动度仪 /
- 高温煤焦油沥青 /
- 中间相沥青
Abstract: The Giseeler fluidity method was used to investigate the rheological properties of pitch with and without heat treatment from room temperature to 520 ℃. Results show that the fluidity has a good repeatability at different temperatures under different heating rates. The fluidity of the raw pitch slowly increases from 253 to 282 ℃, then increases exponentially from 282 to 311 ℃ near the softening temperature, and finally remains unchanged from 311 to 498 ℃. This changing pattern of fluidity with temperature has also been found for heat-treated mesophase pitch and can be formulated by the Arrhenius equation, from which the viscous flow activation energy can be obtained. The toluene-insoluble fraction increases from 67.3% to 88.7% with heat-treatment time and the flow activation energy of the treated mesophase pitch in the Newtonian fluid region at low temperature range is between 203.6 and 294 kJ/mol.
- Rheological properties /
- Giseeler fluidity instrument /
- High temperature coal tar pitch /
- Mesophase pitch

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参考文献(15)

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基于基斯勒尔法中间相沥青的流变性质

doi: 10.1016/S1872-5805(15)60183-4

通讯作者:
金鸣林,教授. E-mail: Jinml@sh163.net

计量

Rheological properties of mesophase pitch investigated by the Giseeler fluidity method

计量

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留言板

基于基斯勒尔法中间相沥青的流变性质

doi: 10.1016/S1872-5805(15)60183-4

通讯作者: 金鸣林,教授. E-mail: Jinml@sh163.net

计量

出版历程

Rheological properties of mesophase pitch investigated by the Giseeler fluidity method

计量

出版历程

目录

通讯作者:
金鸣林,教授. E-mail: Jinml@sh163.net