首页|MWNTs/PUR复合材料的制备与气敏响应性研究

MWNTs/PUR复合材料的制备与气敏响应性研究

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将端羧基丁二烯丙烯腈橡胶(CTBN)改性为多端羟基橡胶(f-CTBN)后,掺杂功能化多壁碳纳米管(MWNTs),与4,4'-二环己基甲烷二异氰酸酯(H12 MDI)反应得到预聚物,再加入聚乙二醇(PEG6000)共聚合,得到一系列聚氨酯复合材料MWNTs/PUR;采用扫描电镜(SEM)、热失重(TG)等手段进行表征;考察了MWNTs含量、固化温度等因素对聚氨酯复合材料气敏响应能力的影响.结果表明,掺杂纳米管不仅提高了聚氯酯复合材料的力学和热学性能,更增强了其对有机溶剂饱和蒸汽的气敏响应能力;当固化温度为80℃时,聚氨酯复合材料的气敏响应能力最强.
Preparation and Vapor Sensitivity Response of Multi-Walled Carbon Nanotubes/Polyurethane (MWNTs/PUR) Composite
A series of polyurethane (PUR)composite adulterated carboxyl functionalized multi-walled carbon nanotubes (MWNTs) were designed and prepared on the basis of a triethanolamine-hyperbranched carboxyl-terminated poly(butadiene-co-acrylonitrile) (/-CTBN), poly(ethylene glycol) (PEG6000) and 4, 4'-dicyclo-hexylmethane diisocyanate (H12 MDI) curing agents. The morphology and mechanical performance of composite were characterized through SEM, TG etc. The effects of sensor conditions, such as MWNTs content, curing temperature etc, were investigated. The results showed that adulterating MWNTs caused the mechanics and thermology to be significantly higher than that of pure PUR. Furthermore, vapor sensitivity response properties of composite were increased in saturated organic vapors to some extent. Gladly, vapor sensitivity response properties for all kinds of composites were superiority at 80℃.

multi-walled carbon nanotubes(MWNTs)polyurethane(PUR)compositevapor sensitivity response

张常虎

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西安文理学院化学与化工系,陕西西安710065

多壁碳纳米管 聚氨酯 复合材料 气敏响应性

西安文理学院中青年科研基金

kyc201014

2011

10.3969/j.issn.1672-5425.2011.08.014

化学与生物工程
武汉工程大学　湖北省化学化工学会　湖北省化学研究院　湖北省化学工业研究设计院

化学与生物工程

CSTPCD
影响因子：0.351
ISSN：1672-5425
年,卷(期)：2011.28(8)
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