In a poster presentation at the 2009 AAPS Annual Meeting and Exposition (8-12 November 2009; Los Angeles, USA), materials scientists fromFreeman Technologywill describe collaborative work with machinery manufacturer Harro Höfliger. The joint development project was established to address the challenges of specifying low-friction materials of construction for pharmaceutical powder processing plant. Using the Freeman Technology FT4 Powder Rheometer to test a variety of materials supplied by Harro Höfliger, new methods have been developed for the consistent measurement of Wall Friction Angle (a term that describes the interaction between a powder and the wall material) for low friction surfaces.
Low-friction materials allow powders to flow easily through the process with minimal residue and also give process designers considerable flexibility with respect to equipment wall and valley angles to promote mass flow. Historically, however, WFA measurement reproducibility has been poor for low-friction materials and a significant improvement in testing methodologies is long overdue.
FT4是一种通用的粉末测试仪 - 三种仪器，结合了专利的刀片方法，用于测量流量能量，以及一系列的剪切细胞，壁摩擦模块和其他用于测量散装特性的配件。
FT4在评估粉末/测试材料组合的力和扭矩方面的敏感性以及系统控制软件自动检测稳态的能力，是实现低摩托材料所需的可重复结果的钥匙。亚博网站下载
Full details of the work can be viewed in Poster W5358 exhibited on Wednesday, November 11, 2009 from 1 pm to 5pm in West Exhibit Hall A. The FT4 will be on display in Los Angeles at the Freeman Technology Booth # 1651, where the company's specialists will be available throughout to discuss individual powder testing requirements.