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Effects of Surface Functional Groups on the Adhesion of SiO 2 Nanospheres to Bio-Based Materials

Effects of Surface Functional Groups on the Adhesion of SiO 2 Nanospheres to Bio-Based Materials

Zuobing Xiao, Jing Xu, Yunwei Niu, Guangyong Zhu, Xingran Kou

Nanomaterials (Basel). 2019 Oct 3;9(10):1411.

PMID: 31623332

Abstract:

The interactions between nanoparticles and materials must be considered when preparing functional materials. Although researchers have studied the interactions between nanoparticles and inorganic materials, little attention has been paid to those between nanoparticles and bio-based protein materials, like leather. In this study, organically modified silica nanospheres (SiO2 nanospheres) loaded with rose fragrance were prepared using (3-aminopropyl) triethoxysilane (APTES), (3-mercaptopropyl) triethoxysilane (MPTES), or 3-(2, 3-epoxypropyloxy) propyl triethoxysilane (GPTES) using the sol-gel method. To study the interactions between the modified SiO2 nanospheres and leather, a non-cross-linking adsorption experiment was conducted. According to the Dubinin-Radushkevich isotherm calculation, we found that the adsorption process of leather fiber and organically modified silica nanospheres is physical. The average adhesion energies of APTES-, MPTES-, and GPTES-modified SiO2 nanospheres on the leather are 1.34016, 0.97289, and 2.09326 kJ/mol, respectively. The weight gain, adsorption capacity, and average adhesion energy show that the modified SiO2 nanospheres can be adsorbed on leather in large quantities. The sensory evaluation confirmed that GPTES-modified SiO2 nanospheres endowed the leather with an obvious rose aroma.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP14814096	(3-Mercaptopropyl)triethoxysilane		14814-09-6	Price

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