TheMechanicalPropertiesofPolyurethaneElastomerReinforcedandToughenedByCaSO4-Whisker

被引：3

作者：

刘玲

机构：

来源：

JournalofWuhanUniversityofTechnology-MaterialsScience | 2002年 / 03期

关键词：

whiskers; polyurethane elastomer; reinforcement and toughness; composite;

D O I：

暂无

中图分类号：

TQ334 [热塑性弹性体];

学科分类号：

0805 ; 080502 ;

摘要：

CaSO 4 whisker reinforcing and toughening mechanisms for polyurethane elastomer were studied. The effects of dispersity of CaSO 4 whisker and interfacial bonding state on reinforcement and toughness were discussed.The microanalyses showed that CaSO 4 whisker reinforcing mechanism for polyurethane elastomer mainly was load transferring and its toughening mechanism involved crack deflection and whisker pullout.The results indicated that composites with 5%-10% CaSO 4 whisker exhibited the best mechanical properties. Good bonding interface was formed between whisker and matrix after the surface of CaSO 4 whisker was treated by silane coupling agent.The fairly improved strength and toughness are attributed to the better interfacial bonding state.

引用

页码：50 / 53

页数：4

共 4 条

[1]

Effect of Fillers on Thermal and Mechanical Properties of Polyurethane Elastomer. Salih B,lku Y,Fikret P,Saim. Journal of Applied Polymer Science . 1998

[2]

Polyether-Based Thermoplastic Polyurethanes(Ⅰ)Effect of the Hard-Segment Content. R J Zdrahala,R M Gerkin,S L Hager and F E Critchfield. Journal of Applied Polymer Science . 1979

[3]

The Mechanical Interaction of Sapphire whiskers with a Bi-Refringent Matrix. D M Schuster,E Scala. Report . 1963

[4]

Properties of Linear Elastomeric Polyurethanes. S L Cooper,A V Tobolsky. Journal of Applied Polymer Science . 1966

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