Effects of Triton X-100 and OP-10 on Dispersivity of Nano-Sized Tungsten Carbide Powder in Absolute Ethanol AITranslate

2吴霞,巫辉.Facile Preparation and Formation Mechanism of Uniform Silver Nanoparticles Using OP-10 as Emulsifier in Reverse Microemulsion[J].武汉理工大学学报：材料科学英文版,2011,26(1):38-42. 被引量：1

4Weidong Huang,Linxia Zhang,Qiuping Yang,Zhimin Wang.Polyvinylpyrrolidone as an Efficient Stabilizer for Silver Nanoparticles[J].中国化学:英文版,2014,32(9):909-913.

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Chinese Library Classification Number:TB34[一般工业技术—材料科学与工程]

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Nano-sized tungsten carbide powder is an important raw material for the preparation of ultrafine nano-cemented carbide.However,due to its large specific surface area,agglomeration is easy to occur,hindering the full play of its inherent excellent performance.To reduce the agglomeration of the nano-sized tungsten carbide powder,two surfactants,Triton X-100 and OP-10,were used for dispersion.Sedimentation experiment,absorbance test,particle size analysis and transmission electron microscope were used to study the dispersion performance of nano-sized tungsten carbide in absolute ethanol.The results show that when the mass fractions of Triton X-100 and OP-10 are 2% and 1.5% with ultrasonic times of 30 min and 50 min,respectively,the dispersion effect of the nano-sized tungsten carbide suspension reaches the best.Under the same ultrasonic time and with the same concentrations,OP-10 exhibits better dispersion effect than Triton X-100.Infrared analysis shows that Triton X-100 and OP-10 mainly reduce the agglomeration by adsorbing onto the surface of nano-sized tungsten carbide.