Effect of the addition of silane coupling agents on the properties of wollastonite-reinforced poly(ether ether ketone) composites

The wollastonite was grafted with different silane coupling agents, which could improve interface adhesion. Wollastonite and modified wollastonite‐reinforced poly(ether ether ketone) (PEEK) composites were prepared by melt blending. The mechanical properties, rheology behavior, and thermal propertie...

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Bibliographic Details
Published in:Polymer engineering and science 2011-06, Vol.51 (6), p.1051-1058
Main Authors: Ma, Gang, Yue, Xigui, Zhang, Shuling, Rong, Changru, Wang, Lifeng, Wang, Guibin, Wang, Hongliang
Format: Article
Language:English
Subjects:
Adhesion
Adhesives
Applied sciences
Composites
Composition
Coupling agents
Crystallization
Ethers
Exact sciences and technology
Forms of application and semi-finished materials
Ketones
Mechanical properties
Polyetheretherketone
Polyetheretherketones
Polymer industry, paints, wood
Polymer matrix composites
Polymeric composites
Polymers
Rheology
Silane
Silanes
Technology of polymers
Tensile strength
Thermal properties
Viscosity
Wollastonite
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Summary:The wollastonite was grafted with different silane coupling agents, which could improve interface adhesion. Wollastonite and modified wollastonite‐reinforced poly(ether ether ketone) (PEEK) composites were prepared by melt blending. The mechanical properties, rheology behavior, and thermal properties of the composites were investigated. The modified wollastonite‐reinforced PEEK composites exhibited better mechanical properties than the unmodified wollastonite‐reinforced PEEK composites based on good interfacial adhesion. The composites had lower activation volume and complex shear viscosity. Furthermore, the modified wollastonite‐reinforced PEEK composites had higher crystallization peak temperature (Tc) and crystalline fraction (χc) compared with the unmodified wollastonite‐reinforced PEEK composites. This study shows that the traditional silane coupling agents could effectively improve the performance of PEEK composites. POLYM. ENG. SCI., 2011. © 2011 Society of Plastics Engineers
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.21925