电子束辐照诱导丙烯酸接枝尼龙66织物的改性研究

利用电子束引发丙烯酸单体接枝尼龙66织物,研究不同接枝条件对接枝反应的影响。利用红外光谱仪（FTIR）、热重分析仪（TGA）、扫描电镜（SEM）以及YG065型织物强力仪研究了接枝前后织物的化学结构、热性能、表面形貌及力学性能变化,并通过垂直燃烧评价接枝织物的抗熔滴性能。结果表明：红外谱图1720.2cm-1等处出现单体中羧基的特征吸收峰,说明丙烯酸成功接枝到尼龙66上。接枝后,尼龙66织物的抗熔滴性得到显著改善,主要因为交联状炭层骨架对纤维熔体的支撑作用,但力学性能有一定程度降低。随着接枝率的增加,尼龙66的初始分解温度逐渐降低,成炭性能明显提升,织物损毁长度变短,熔滴速率更低,而断裂强力有...

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Bibliographic Details
Published in材料工程 Vol. 45; no. 10; pp. 111 - 116
Main Author 桑伟 周岚 冯新星 张建春
Format Journal Article
LanguageChinese
Published 浙江理工大学 先进纺织材料与制备技术教育部重点实验室,杭州,310018%浙江理工大学 先进纺织材料与制备技术教育部重点实验室,杭州 310018 2017
中国人民解放军总后勤部军需装备研究所,北京 100082%中国人民解放军总后勤部军需装备研究所,北京,100082
Subjects
丙烯酸
尼龙66
成炭
抗熔滴
接枝
电子束辐照
graft
丙烯酸
成炭
接枝
electron beam irradiation
6
抗熔滴
尼龙66
电子束辐照
acrylic acid
nylon 6
anti-dripping
char-forming
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2015.001319

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Summary:利用电子束引发丙烯酸单体接枝尼龙66织物,研究不同接枝条件对接枝反应的影响。利用红外光谱仪（FTIR）、热重分析仪（TGA）、扫描电镜（SEM）以及YG065型织物强力仪研究了接枝前后织物的化学结构、热性能、表面形貌及力学性能变化,并通过垂直燃烧评价接枝织物的抗熔滴性能。结果表明：红外谱图1720.2cm-1等处出现单体中羧基的特征吸收峰,说明丙烯酸成功接枝到尼龙66上。接枝后,尼龙66织物的抗熔滴性得到显著改善,主要因为交联状炭层骨架对纤维熔体的支撑作用,但力学性能有一定程度降低。随着接枝率的增加,尼龙66的初始分解温度逐渐降低,成炭性能明显提升,织物损毁长度变短,熔滴速率更低,而断裂强力有轻微提升。
Bibliography:11-1800/TB
Acrylic acid was grafted onto nylon 66 fabric by the electron beam irradiation method.Effects of different grafting conditions on grafting reaction were investigated.Fourier transform infrared spectroscopy（FTIR）,thermo gravimetric analyzer（TGA）,scanning electron microscope（SEM）and YG065 type fabric strength tester were used to characterize the chemical structures,thermal properties,surface morphology and mechanical properties of these prepared nylon 66 fabric samples.And the anti-dripping performance was evaluated by the vertical burning.The results show that in FTIR spectrum new absorption peeks at 1720.2 cm-1 and other wave numbers are assigned to the carboxyl groups,which imply that acrylic acid is successfully grafted to the nylon 66 molecular.The anti-dripping performance of nylon 66 fabric is improved significantly after grafting.It can be attributed to the cross-linked char layer which subsequently provides a support for the melting fiber.However,the mechanical properties of grafted samples d
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2015.001319