| 炭/炭复合材料用糠酮树脂先驱体的固化特性及动力学分析 |
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| 引用本文： | 王剑锋,郭领军,李贺军,徐五丹,李克智.炭/炭复合材料用糠酮树脂先驱体的固化特性及动力学分析[J].固体火箭技术,2012,35(1):123-126,132. |
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| 作者姓名： | 王剑锋 郭领军 李贺军 徐五丹 李克智 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室,西安,710072 |
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| 基金项目： | 国家自然科学基金资助项目(90716024) |
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| 摘 要： | 采用品氏粘度计表征了室温下磷酸/糠酮树脂固化体系的粘度变化,采用热重(TGA)-差热(SDTA)同步分析仪测试了其固化过程,以研究固化剂含量和升温速率对其固化反应的影响。同时,采用一定工艺制备固化后的试样并进行验证。结果发现,即使在室温条件下,固化反应也在缓慢进行;固化剂含量为6.67%的固化体系固化后质量损失较小,表观比较致密;加热速率为2 K/min时,有利于固化反应的进行。在此基础上,采用Malek最大概然机理函数法求取固化反应动力学参数,建立了描述该体系固化反应的动力学模型。
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| 关 键 词： | 糠酮树脂 固化反应 Malek法 动力学 |
Curing characteristics and kinetic analysis of furfural acetone resin used as carbon/carbon composites precursor |
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| WANG Jian-feng
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GUO Ling-jun
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LI He-jun
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XU Wu-dan
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LI Ke-zhi.Curing characteristics and kinetic analysis of furfural acetone resin used as carbon/carbon composites precursor[J].Journal of Solid Rocket Technology,2012,35(1):123-126,132. |
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| Authors: | WANG Jian-feng GUO Ling-jun LI He-jun XU Wu-dan LI Ke-zhi |
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| Institution: | (State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China) |
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| Abstract: | The viscosity change of phosphate/furfural acetone resin curing system at room temperature was characterized by viscometer.The curing process was tested by TEA/SDTA analyzer to study the effects of curing agent content and heating rate on curing reaction.Meanwhile samples were prepared by curing process to verify the results.The results show that viscosity of the system increases with curing time and curing system with the phosphorus acid curing agent content of 6.67% has lower mass loss and more compact surface.The heating rate of 2 k/min is beneficial to curing process.Based on the conclusion,Malek isoconversional method was used to determine the kinetic parameters and establish kinetic model of curing reaction. |
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| Keywords: | furfural acetone resin curing reaction Malek method kinetics |
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