Abstract
Technique to obtain disaggregated composites with uniform distribution of the Ni nanoparticles in a polymer matrix was developed on the example of epoxy resin. Disaggregated and aggregated composites based on butyl methacrylate copolymer with 5 wt% methacrylic acid and Ni and NiO nanoparticles were obtained. Enthalpies of mixing the components compositions in a wide range of compositions were defined using isothermal calorimetry. Parameters adhesive interaction at the interface and glassy polymer structure changes were calculated. The influence of the chemical nature of nanosized filler on interfacial energy was found.
Highlights
The properties of filled polymer materials are determined by four factors: the chemical nature of the polymer and the filler, filler content, structure of filled polymer composites, and interfacial interaction at the interface ‘polymer – filler’[1]
Mutual arrangement of the filler particles in the polymer matrix is understood to be the structure of filled materials
It is typical of nanosized powder fillers to undergo the process of aggregation, which is accompanied by the reduction of free surface energy. These particle aggregates can be the structural elements of a polymer material, along with the single filler particles
Summary
The properties of filled polymer materials are determined by four factors: the chemical nature of the polymer and the filler, filler content, structure of filled polymer composites, and interfacial interaction at the interface ‘polymer – filler’[1]. Mutual arrangement of the filler particles in the polymer matrix is understood to be the structure of filled materials. It is typical of nanosized powder fillers to undergo the process of aggregation, which is accompanied by the reduction of free surface energy. As a result, these particle aggregates can be the structural elements of a polymer material, along with the single filler particles. The aim of this study is to develop a method of synthesis of disaggregated composites on the example of epoxy resin with the Ni nanoparticles and to investigate the thermodynamics of interface interraction between butyl methacrylate copolymer with 5 wt% methacrylic acid and Ni and NiO nanoparticles. For the Ni powder, the specific surface area was 8.0 m2/g, and for NiO 16.6 m2/g
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