球磨和热处理协同制备小尺寸羟基化六方氮化硼

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中图分类号：TB321 文献标识码：A DOI：10.7535/hbkd.2025yx06001

Abstract：Toaddress theissueof limitedaplicationof hexagonal boron nitrideduetothelowcontentofactive groups onthe surface，smalsizedhydroxylatedhexagonalboronnitridewaspreparedbyusingtwomethods：ballmillingandhightemperature heating.Themodified hexagonalboron nitride wascharacterized by infrared spectroscopy，Raman spectroscopy， scaningelectronmicroscope，thermogravimetricanalyzer，X-raydifractometer，X-rayphotoelectronspectrometer，thermal conductivity meterand contactangle meter toanalyze itsstructure，crystal properties，morphology，thermal stability， elementalcomposition，thermalconductivityandhydrophilicity/hydrophobicity.Theresultsindicatethatballmiling effectivelyreduces particle sizeandsurfaceroughness ofhexagonal boron nitride，andalsoimproves its thermalconductivity andhydrophobicity，but ithasno efectonits structureandcrystal properties.Conversely，thehigh-temperatureheating method notonlyreduces particle sizeandachieves hydroxylationbutalso significantlylowers surfaceroughness，decreasing the root mean square roughness of hexagonal boron nitride from 1.56nm to 0.27nm . However，this method compromises thermal stability，resultingin a 21.14% weight loss（mass fraction） for hydroxylated hexagonal boron nitride at 800∘C .In addition，high-temperaturetreatmentnotonlyreducesthethermalconductivityofhexagonalboronnitride，butalsoenablesthe transformationof hexagonal boronnitridefrom hydrophobictohydrophilicmaterials.Anewmethod forthepreparationof smallsizedhydroxylatedhexagonalboronnitridebyballmilingandheattreatmentisputforward，providingreferencefor expanding the application of modified hexagonal boron nitride materials in other fields.

Keywords：inorganic non-metalic materials；boron nitride；ballmillng；high temperature；small size；morphology

氮化硼（BN）是一种类石墨烯结构的二维材料，其被称为“白色石墨烯”[1]。（剩余11712字）