碳纤维微晶取向结构的形成

来源 :第二届中国国际复合材料科技大会 (CCCM-2) | 被引量 : 0次 | 上传用户：hjiejngd

【摘要】

：

作为典型的各向异性材料，碳纤维的微晶取向结构是影响其力学性能的关键因素，聚丙烯腈原丝在热稳定化完成后，原有的微晶结构消失，碳纤维的微晶取向则在低温碳化过程中重新初步形成。本论文采用X-射线衍射法研究了碳纤维微晶取向形成的初始阶段，温度以及牵伸对微晶取向结构形成的影响规律，研究结果表明，在1000℃的低温碳化阶段，随着碳化温度的提高，由非碳元素的不断脱除引起的收缩张力导致形成的碳微晶沿轴向排列，取向

【作者】

：

韩旭孔德玉周怡然何烨徐樑华曹维宇

【机构】

：

北京化工大学有机无机复合材料国家重点实验室北京化工大学有机无机复合材料国家重点实验室;北京化工大

【出处】

：

第二届中国国际复合材料科技大会 (CCCM-2)

【发表日期】

：

2015年7期

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碳纤维微晶取向结构的形成

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