Particle separation to improve the properties and understanding of Kisolite clay.

颗粒分离可提高黄硅石粘土的性能和了解。

• 批准号: 462558-2014
• 负责人: Grace, John
• 金额: $ 0.91万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=557867
• 关键词: Particle; separation; improve; properties; understanding

A clay deposit on the central Pacific British Columbia coast has been regarded by the Heiltsuk First Nations people as an invaluable resource of a unique clay with exceptional therapeutic healing properties. Kismeet Glacial Clay Inc. is seeking to utilize this unique clay, known as Kisolite Clay, for pharmaceutical and cosmetic applications. Despite its considerable potential, the clay contains silica particles which need to be removed prior to utilize for such applications. Better understanding of antimicrobial mechanism in relationship to particle size and mineralogical properties is also necessary for optimizing the use of this clay. Several separation processes were examined in our previous Engage project. An inclined vibrating screen was found to be the most promising method for separating particles by size, with capability to separate particles larger than 50 microns. The proposed Engage Plus grant will extend the earlier work by dividing the clay into different size fractions, examining the mineral compositions of these fractions and relating these properties to antibacterial activities. A laboratory-scale inclined vibrating screen, aided by sonication to improve screening efficiency and to obtain smaller size fractions, will be developed and tested for a range of operating conditions. The impact of these conditions on antibacterial properties will then be examined. If time allows, preliminary tests will be carried out to demonstrate the inclusion of the clay of suitable size into a nanofibre matrix for various antimicrobial applications. The work will be carried out by Dr. Grace and a postdoctoral fellow from the Department of Chemical and Biological Engineering in collaboration with Civil Engineering, Materials Engineering and Microbiology, working closely with Kisameet representatives.

位于太平洋中部不列颠哥伦比亚省海岸的粘土存款被Heiltsuk第一民族人民视为具有特殊治疗愈合特性的独特粘土的宝贵资源。Kismeet冰川粘土公司正在寻求将这种独特的粘土（称为Kisolite粘土）用于制药和化妆品应用。尽管其具有相当大的潜力，但粘土含有二氧化硅颗粒，在用于此类应用之前需要将其除去。更好地了解抗菌机制与粒度和矿物学特性的关系也是优化这种粘土的使用所必需的。在我们以前的Engage项目中，我们研究了几个分离过程。倾斜振动筛被认为是最有前途的方法，用于分离颗粒的大小，与能力，以分离颗粒大于50微米。拟议的Engage Plus赠款将通过将粘土分成不同大小的部分来扩展早期的工作，检查这些部分的矿物成分并将这些特性与抗菌活性联系起来。将开发一种实验室规模的倾斜振动筛，并在一系列操作条件下对其进行测试，该振动筛辅以超声处理，以提高筛分效率并获得较小的粒度级。然后将检查这些条件对抗菌性能的影响。如果时间允许，将进行初步测试，以证明将合适尺寸的粘土纳入纳米纤维基质中用于各种抗菌应用。这项工作将由化学和生物工程系的Grace博士和一名博士后研究员与土木工程、材料工程和微生物学合作，并与Kisameet的代表密切合作。