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对TiO2颜料进行比较电子显微镜颗粒大小测量:样品制备和测量

Ralf Theissmann¹, Christopher Drury², Markus Rohe³

¹Research Services, KRONOS INT. Inc., Peschstr. 5, 51737 Leverkusen, Germany.

Beilstein journal of nanotechnology

|April 9, 2024

概括

精确测量纳米级二氧化 (TiO2) 分数对于监管合规至关重要. 这项研究提供了来自制造商的一致的初级颗粒大小分布 (PSD) 数据,突出了与其他公布结果的差异.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
分析化学分析化学

背景情况:

二氧化 (TiO2) 是一种广泛使用的颜料,其颗粒大小优化了白度和不透明度.
制造工艺产生纳米级的TiO2分数,需要为欧盟法规量化.
精确测量这个纳米分数对于产品质量保证和监管合规性至关重要.

研究的目的:

描述TiO2颜料质量保证的测量程序.
展示来自循环组合研究的初级粒子大小分布 (PSD).
为TiO2颜料的标准化测量协议的开发做出贡献.

主要方法:

电子显微镜被用来获得基于数字的初级粒子大小分布 (PSD).
对来自不同制造厂的五种解剖酶TiO2颜料进行了一项循环组合研究.
补充方法,包括表面积测量,支持了电子显微镜的结果.

主要成果:

三家TiO2制造商测量的PSD显示出极好的一致性.
在制造商的PSD与其他地方发布的PSD之间观察到显著差异.
在某些情况下,测量的PSD导致了对测试的TiO2色素的不同监管分类.

结论:

电子显微镜为TiO2色素提供可重现的PSD测量.
需要标准化的测量协议来准确量化纳米级TiO2分数.
一致的PSD数据对于TiO2行业的监管分类和产品质量至关重要.

关键词:

电子显微镜的电子显微镜纳米材料的定义这是一个基于数字的数字.颗粒大小测量颗粒大小测量主要颗粒主要颗粒.

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