FRACTURE-RESISTANCE OF A GLASS-FIBER REINFORCED RUBBER-MODIFIED THERMOPLASTIC HYBRID COMPOSITE

被引：33

作者：

NAIR, SV ^{[1
]}

SHIAO, ML ^{[1
]}

GARRETT, PD ^{[1
]}

机构：

[1] MONSANTO CHEM CO,SPRINGFIELD,MA 01151

来源：

JOURNAL OF MATERIALS SCIENCE | 1992年 / 27卷 / 04期

关键词：

D O I：

10.1007/BF01197664

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Toughening mechanisms in a hybrid amorphous thermoplastic composite containing both distributed rubber particles and rigid glass fibres have been investigated. Tensile properties were measured for a range of materials with varying rubber particle and glass-fibre contents, and different rubber particle sizes. Fracture toughness was characterized by separating the overall fracture into its initiation and propagation components. Deformation and fracture modes at crack tips were optically characterized in situ during loading. The results indicate that both initiation and propagation toughness are enhanced by rubber particle additions to the glass-fibre reinforced composite. Synergistic effects between glass fibres and rubber particles are identified: for example, glass fibres inhibit crazing at rubber particles, and rubber particles tend to promote crazing at fibre/matrix interfaces and also void initiation at fibre ends. Toughening mechanisms are discussed in the light of available models.

引用

页码：1085 / 1100

页数：16

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