The effect of surface functional groups of nanosilica on the properties of polyamide 6/SiO2 nanocomposite

• Authors: Qijie Xu , Fangfei Chen , Xiaohong Li , Zhijun Zhang
• Languages of publication: EN

Abstracts

EN

The present study investigated the effect of the surface functional groups of nanosilica on the interfacial, crystallization, and thermal stability of polyamide 6/SiO2 (PA6/SiO2) nanocomposite, in which nanosilica was modified in situ with both 3-triethoxysilylpropylamine and 3-methacryloxypropyltrimethoxy silane¬ (KH-550 and KH-570). The FTIR analysis results showed the chemical bonding action between the reacting amino groups of nanosilica and end carboxyl groups of polyamide 6 enhanced with increasing the ratio of KH-550 and KH-570. The XRD spectrum indicated that the crystal structure of PA6/SiO2 nanocomposites tended to form α crystal type that was beneficial to an improvement of mechanical properties, and which was in agreement with the results of mechanical strength measurements. It was also found that crystallization temperature and crystallization rate of PA6/SiO2 nanocomposites were lower than that of neat polyamide 6.

Keywords

EN

nanosilica; polyamide 6; nanocomposite; in situ polymerization

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2013
• Volume: 15
• Issue: 3
• Pages: 20-24

Dates

published

1 - 09 - 2013

online

20 - 09 - 2013

Contributors

author

Qijie Xu

• Henan University, Key Lab for Special Functional Materials, Ministry of Education, Kaifeng 475000 Henan China
• Huanghuai University, The Department of Chemistry & Chemical Engineering, Zhumadian 463000, Henan China

author

Fangfei Chen

• Henan University, Key Lab for Special Functional Materials, Ministry of Education, Kaifeng 475000 Henan China

author

Xiaohong Li

• Henan University, Key Lab for Special Functional Materials, Ministry of Education, Kaifeng 475000 Henan China

author

Zhijun Zhang

• Henan University, Key Lab for Special Functional Materials, Ministry of Education, Kaifeng 475000 Henan China

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Identifiers

DOI

10.2478/pjct-2013-0039