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The effect of surface functional groups of nanosilica on the properties of polyamide 6/SiO2nanocomposite

100%
Xu Q., Chen F., Li X., Zhang Z.
Polish Journal of Chemical Technology
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2013
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vol. 15
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issue 3
20-24
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.
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Effect of Processing Conditions on Selected Properties of Polyamide 6 Composites Filled by Modified Bentonite

75%
Gnatowski A., Gołębski R., Stachowiak K., Gnatowski A., Gołębski R., Stachowiak K.
Archives of Metallurgy and Materials
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2021
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vol. 66
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issue 2
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