ICCAS OpenIR
Dispersion and distribution of organically modified montmorillonite in nylon-66 matrix
Yu, ZZ; Yang, MS; Zhang, QX; Zhao, CG; Mai, YW
2003-06-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
Volume41Issue:11Pages:1234-1243
AbstractNylon-66 nanocomposites were prepared by melt-compounding nylon-66 with an alkyl ammonium surfactant pretreated montmorillonite (MMT). The thermal stability of the organic MMT powders was measured by thermogravimetric analysis. The decomposition of the surfactant on the MMT occurred from 200 to 500 degreesC. The low onset decomposition temperature of the organic MMT is one shortcoming when it is used to prepare polymer nanocomposites at high melt-compounding temperatures. To provide greater property enhancement and better thermal stability of the polymer/ MMT nanocomposites, it is necessary to develop MMT modified with more thermally stable surfactants. The dispersion and spatial distribution of the organic MMT layers in the nylon-66 matrix were characterized by X-ray diffraction. The organic MMT layers were exfoliated but not randomly dispersed in the nylon-66 matrix. A model was proposed to describe the spatial distribution of the organic MMT layers in an injection-molded rectangular bar of nylon-66/organic MMT nanocomposites. Most organic MMT layers were oriented in the injection-molding direction. Layers near the four surfaces of the bar were parallel to their corresponding surfaces; whereas those in the bulk differed from the near-surface layers and rotated themselves about the injection-molding direction. The influence of the spatial distribution of the organic MMT on crystallization of nylon-66 was also investigated. (C) 2003 Wiley Periodicals, Inc.
KeywordNylon Nanocomposites Organoclay Orientation X-ray
DOI10.1002/polb.10480
Indexed BySCI
Language英语
WOS IDWOS:000182767900012
PublisherJOHN WILEY & SONS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81220
Collection中国科学院化学研究所
Corresponding AuthorYu, ZZ
Affiliation1.Univ Sydney, Sch Aerosp Mech & Mechatron Engn J07, Ctr Adv Mat Technol, Sydney, NSW 2006, Australia
2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yu, ZZ,Yang, MS,Zhang, QX,et al. Dispersion and distribution of organically modified montmorillonite in nylon-66 matrix[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2003,41(11):1234-1243.
APA Yu, ZZ,Yang, MS,Zhang, QX,Zhao, CG,&Mai, YW.(2003).Dispersion and distribution of organically modified montmorillonite in nylon-66 matrix.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,41(11),1234-1243.
MLA Yu, ZZ,et al."Dispersion and distribution of organically modified montmorillonite in nylon-66 matrix".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 41.11(2003):1234-1243.
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