ICCAS OpenIR
Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam
Li, Lanjie1,2; Yang, Guisheng1,3
2011-05-15
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume120Issue:4Pages:1957-1964
AbstractNylon 6 (N6)/mesoporous silica (MS) nanocomposites (NMSNs) were synthesized via in situ synchronous hydrolytic polymerization of tetraethylorthosilicate (TEOS) and epsilon-caprolactam. The novelty of this technique lies in that the nanosilica generated in situ has unique mesoporous structure and ultrahigh-specific surface area (SSA). Mechanical test showed that, compared to conventional precipitated silica (PS) nanofillers, the MS generated in situ shows better reinforcing efficiency on N6. At a loading of only 3.0 wt % MS, the tensile modulus, flexural modulus, and the heat distortion temperature of NMSNs exhibit increase of 54.8%, 77.9%, and 55.9 degrees C, respectively. The effects of MS on the crystallization behaviors of N6 have been studied by differential scanning calorimetry (DSC), which shows that the incorporation of MS influences the crystallization behaviors of N6 obviously: (1) increases crystallization temperature (T(c)) by serving as heterogonous nucleating agent; (2) favors the formation of gamma-phase by hindering the mobility of N6 chains. Dynamic mechanical analysis confirmed that, compared ti that of neat N6, the temperature of the main alpha-relaxation (T(alpha)) and the secondary beta-relaxation (T(beta)) of NMSNs is shifted 6.1 degrees C and 5.3 degrees C toward higher temperature. (c) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 1957-1964, 2011
KeywordFillers Mechanical Properties Nanocomposites Nylon Silicas
DOI10.1002/app.33289
Indexed BySCI
Language英语
WOS IDWOS:000288337400011
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73484
Collection中国科学院化学研究所
Corresponding AuthorYang, Guisheng
Affiliation1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Shanghai Genius Adv Mat Co Ltd, Shanghai 201109, Peoples R China
Recommended Citation
GB/T 7714
Li, Lanjie,Yang, Guisheng. Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2011,120(4):1957-1964.
APA Li, Lanjie,&Yang, Guisheng.(2011).Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam.JOURNAL OF APPLIED POLYMER SCIENCE,120(4),1957-1964.
MLA Li, Lanjie,et al."Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam".JOURNAL OF APPLIED POLYMER SCIENCE 120.4(2011):1957-1964.
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