Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam

doi:10.1002/app.33289

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis and Characterization of Nylon-6/Mesoporous Silica Nanocomposites via In Situ Synchronous Hydrolytic Polymerization of Tetraethylorthosilicate and epsilon-Caprolactam
	Li, Lanjie 1,2; Yang, Guisheng 1,3
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2011-05-15
卷号	120 期号:4 页码:1957-1964
关键词	Fillers Mechanical Properties Nanocomposites Nylon Silicas
ISSN号	0021-8995
DOI	10.1002/app.33289
英文摘要	Nylon 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
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000288337400011
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73483]
专题	中国科学院化学研究所
通讯作者	Yang, Guisheng
作者单位	1.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
推荐引用方式 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.