Compatibilization of nylon 6/liquid crystalline polymer blends with three types of compatibilizers
Zheng, XJ; Zhang, J; He, JS
AbstractPolyblends of nylon 6 and liquid crystalline polymer (LCP) (Vectra A 950) are immiscible and highly incompatible, with resultant poor interfacial adhesion, large phase domains, and poor mechanical properties. In the present work, compatibilizing strategies are put forward for blends containing nylon and LCP. Effects of three types of compatibilizers, including ionomer Zn-sulfonated polystyrene (SPS), reactive copolymer styrene-maleic anhydride (SMA), functional grafted copolymers-polypropylene grafted glycidyl methacrylate (PP-g-GMA) and polypropylene grafted maleic anhydride (PP-g-MAH)-are studied in the aspects of morphology and dynamic mechanical behavior. The addition of compatibilizers decreases the domain size of the dispersed phase and results in improved interfacial adhesion between LCP and matrix. The compatibilization mechanism is discussed by way of diffuse reflectance Fourier transform spectroscopy (DRIFT), showing the reaction between compatibitizers and matrix nylon 6. Mechanical properties are improved by good interfacial adhesion. The contribution of SMA to mechanical properties is more obvious than that of Zn-SPS and grafted PPs used. The blending procedure is correlated with the improvement of mechanical properties by the addition of compatibilizer. Two-step blending is demonstrated as an optimum method to obtain composites with better mechanical properties as a result of a greater chance for LCP to contact the compatibilizer. (C) 2002 Wiley Periodicals, Inc.
KeywordLcps Nylon Blends Compatibilization
Indexed BySCI
WOS IDWOS:000180187100009
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorHe, JS
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zheng, XJ,Zhang, J,He, JS. Compatibilization of nylon 6/liquid crystalline polymer blends with three types of compatibilizers[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2003,87(9):1452-1461.
APA Zheng, XJ,Zhang, J,&He, JS.(2003).Compatibilization of nylon 6/liquid crystalline polymer blends with three types of compatibilizers.JOURNAL OF APPLIED POLYMER SCIENCE,87(9),1452-1461.
MLA Zheng, XJ,et al."Compatibilization of nylon 6/liquid crystalline polymer blends with three types of compatibilizers".JOURNAL OF APPLIED POLYMER SCIENCE 87.9(2003):1452-1461.
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