炭纤维特性与炭纤维/环氧树脂界面断裂能关联分析

采用基于WND(Wagner-Nairn—Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS等手段分析了7种炭纤维的表面物理化学特性,并研究了炭纤维特性与界面断裂能的关联。结果表明:对于所研究的炭纤维/环氧树脂体系,去除炭纤维表面上浆剂后界面断裂能下降,说明上浆剂可以在一定程度上提高界面的韧性。此外,实验范围内,纤维拉伸强度较高时,测得的界面断裂能较高,炭纤维表面粗糙度较高时,测得界面断裂能较高,说明纤维拉伸性能和表面粗糙度对界面韧性有重要影响,而与这两种因素相比,上浆剂的种类影响相对较小。研...

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Published in材料工程 no. 7; pp. 81 - 85
Main Author 张丽娇 顾轶卓 李敏 刘洪新 张佐光
Format Journal Article
LanguageChinese
Published 北京航空航天大学材料科学与工程学院空天材料与服役教育部重点实验室,北京,100191 2012
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ISSN1001-4381
1001-4381
DOI10.3969/j.issn.1001-4381.2012.07.017

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Abstract 采用基于WND(Wagner-Nairn—Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS等手段分析了7种炭纤维的表面物理化学特性,并研究了炭纤维特性与界面断裂能的关联。结果表明:对于所研究的炭纤维/环氧树脂体系,去除炭纤维表面上浆剂后界面断裂能下降,说明上浆剂可以在一定程度上提高界面的韧性。此外,实验范围内,纤维拉伸强度较高时,测得的界面断裂能较高,炭纤维表面粗糙度较高时,测得界面断裂能较高,说明纤维拉伸性能和表面粗糙度对界面韧性有重要影响,而与这两种因素相比,上浆剂的种类影响相对较小。研究结果为高性能国产炭纤维的研发和炭纤维/树脂匹配性的评价提供了重要的实验数据。
AbstractList 采用基于WND(Wagner-Nairn—Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS等手段分析了7种炭纤维的表面物理化学特性,并研究了炭纤维特性与界面断裂能的关联。结果表明:对于所研究的炭纤维/环氧树脂体系,去除炭纤维表面上浆剂后界面断裂能下降,说明上浆剂可以在一定程度上提高界面的韧性。此外,实验范围内,纤维拉伸强度较高时,测得的界面断裂能较高,炭纤维表面粗糙度较高时,测得界面断裂能较高,说明纤维拉伸性能和表面粗糙度对界面韧性有重要影响,而与这两种因素相比,上浆剂的种类影响相对较小。研究结果为高性能国产炭纤维的研发和炭纤维/树脂匹配性的评价提供了重要的实验数据。
TB332; 采用基于WND( Wagner-Nairn-Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS等手段分析了7种炭纤维的表面物理化学特性,并研究了炭纤维特性与界面断裂能的关联.结果表明:对于所研究的炭纤维/环氧树脂体系,去除炭纤维表面上浆剂后界面断裂能下降,说明上浆剂可以在一定程度上提高界面的韧性.此外,实验范围内,纤维拉伸强度较高时,测得的界面断裂能较高,炭纤维表面粗糙度较高时,测得界面断裂能较高,说明纤维拉伸性能和表面粗糙度对界面韧性有重要影响,而与这两种因素相比,上浆剂的种类影响相对较小.研究结果为高性能国产炭纤维的研发和炭纤维/树脂匹配性的评价提供了重要的实验数据.
Author 张丽娇 顾轶卓 李敏 刘洪新 张佐光
AuthorAffiliation 北京航空航天大学材料科学与工程学院空天材料与服役教育部重点实验室,北京100191
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ZHANG Zuo-guang
LI Min
LIU Hong-xin
GU Yi-zhuo
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Keywords 环氧树脂
界面
炭纤维
单丝断裂法
界面断裂能
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Notes carbon fiber; epoxy resin; interface; single fiber fragmentation test; interracial fracture energy
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ZHANG Li-jiao,GU Yi-zhuo,LI Min,LIU Hong-xin,ZHANG Zuo-guang (Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering,Beihang University,Beijing 100191 ,China)
By using the single fiber fragmentation test (SFFT) based on Wagner-Nairn-Detassis (WND) energy model, the interfacial fracture energy of five kinds of homemade and two kinds of for- eign carbon fibers/epoxy resin systems for aeronautical structures was measured. The surface physical and chemical characteristics of the seven carbon fibers were analyzed by means of SEM, AFM, IR and XPS. Moreover, the correlation between the characteristics of carbon fibers and the interracial frac- ture energy was studied. The results indicate that the interfacial fracture energy decreases due to the removal of the sizing agent on the carbon fiber surfaces, which means that the sizing agent may im-
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Snippet 采用基于WND(Wagner-Nairn—Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS等...
TB332; 采用基于WND( Wagner-Nairn-Detassis)能量模型的单丝断裂法,测试了5种国产炭纤维、2种国外炭纤维与航空结构用环氧树脂复合体系的界面断裂能,通过SEM,AFM,IR以及XPS...
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SubjectTerms 单丝断裂法
炭纤维
环氧树脂
界面
界面断裂能
Title 炭纤维特性与炭纤维/环氧树脂界面断裂能关联分析
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