<abstract xmlns="http://www.w3.org/1999/xhtml"> 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.</abstract>

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.

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

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

Polish Journal of Chemical Technology

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

The present study investigated the effect of the surface functional groups of nanosilica on the interfacial, crystallization, and thermal stability of...

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

Published Online: Sep 20, 2013

Page range: 20 - 24

DOI: https://doi.org/10.2478/pjct-2013-0039

This content is open access.