{"title":"Boron Nitride Nanosheets as Prospective Filler for Dielectric Thermally Conductive Elastomeric Films","authors":"N. S. Romanov, E. A. Danilov, I. A. Komarov","doi":"10.1134/S0020168526700123","DOIUrl":null,"url":null,"abstract":"<p>In the present study, facile and green method for h-BN ultrasonic exfoliation was proposed. Exfoliated hexagonal boron nitride nanosheets characterized via transmission electron microscopy, atomic force microscopy as well as static light scattering, were used as fillers in silicone-based films, which enabled to significantly increase both their in-plane thermal conductivity and anisotropy of thermal properties (increase of 23.9 and 4.8 times, respectively, as compared to pure silicone). Composite films exhibited in-plane and through-plane thermal conductivity of 2.653 and 0.529 W/m K, respectively. At the same time, composites showed excellent electrical insulation properties—high volume resistance (10<sup>16</sup> Ohm cm), low permittivity (2.6) and dielectric loss tangent (0.02) at frequencies below 400 kHz.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"412 - 421"},"PeriodicalIF":0.5000,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S0020168526700123","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In the present study, facile and green method for h-BN ultrasonic exfoliation was proposed. Exfoliated hexagonal boron nitride nanosheets characterized via transmission electron microscopy, atomic force microscopy as well as static light scattering, were used as fillers in silicone-based films, which enabled to significantly increase both their in-plane thermal conductivity and anisotropy of thermal properties (increase of 23.9 and 4.8 times, respectively, as compared to pure silicone). Composite films exhibited in-plane and through-plane thermal conductivity of 2.653 and 0.529 W/m K, respectively. At the same time, composites showed excellent electrical insulation properties—high volume resistance (1016 Ohm cm), low permittivity (2.6) and dielectric loss tangent (0.02) at frequencies below 400 kHz.
期刊介绍：
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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