ICCAS OpenIR
New conception on the toughness of nylon 6/silica nanocomposite prepared via in situ polymerization
Ou, YC; Yang, F; Yu, ZZ
1998-04-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
Volume36Issue:5Pages:789-795
AbstractA novel method, in situ polymerization, was used for the preparation of nylon 6/silica nanocomposites, and the mechanical properties of the nanocomposites were examined. The results showed that the tensile strength, elongation at break, and impact strength of silica-modified nanocomposites exhibited a tendency of up and down with the silica content increasing, while those of silica-unmodified nanocomposites decreased gradually. It also exhibited that the mechanical properties of silica-modified nanocomposites have maximum values only when 5% silica particles were filled. Based on the relationship between impact strength of the nanocomposites and the matrix ligament thickness tau, a new criterion was proposed to explain the unique mechanical properties of nylon 6/silica nanocomposites. The nylon 6/silica nanocomposites can be toughened only when the matrix ligament thickness is less than tau(c) and greater than tau(a), where tau, is the matrix ligament thickness when silica particles begin to aggregate, and tau(c) is the critical matrix ligament thickness when silica particles begin to toughen the nylon 6 matrix. The matrix ligament thickness, tau, is not independent, which related with the volume fraction of the inorganic component because the diameter of inorganic particles remains constant during processing. According to the observation of Electron Scanning Microscope (SEM), the process of dispersion to aggregation of silica particles in the nylon 6 matrix with increasing of the silica content was observed, and this result strongly supported our proposal. (C) 1998 John Wiley & Sons, Inc.
KeywordIn Situ Polymerization Nanocomposite Toughness Nylon 6 Silica
Indexed BySCI
Language英语
WOS IDWOS:000072195900006
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:196[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74172
Collection中国科学院化学研究所
Corresponding AuthorOu, YC
AffiliationChinese Acad Sci, Inst Chem, State Key Lab Engn Plast, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Ou, YC,Yang, F,Yu, ZZ. New conception on the toughness of nylon 6/silica nanocomposite prepared via in situ polymerization[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,1998,36(5):789-795.
APA Ou, YC,Yang, F,&Yu, ZZ.(1998).New conception on the toughness of nylon 6/silica nanocomposite prepared via in situ polymerization.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,36(5),789-795.
MLA Ou, YC,et al."New conception on the toughness of nylon 6/silica nanocomposite prepared via in situ polymerization".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 36.5(1998):789-795.
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