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| Preparation and Characterization of Modified Diatomite Coated with Starch and Fatty Acid |
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| DOI：10.11981/j.issn.1000-6842.2015.03.16 |
| Key Words:starch； fatty acid; diatomite； retention |
| Fund Project:本课题获吉林省科技发展计划项目(20140204040GX)和吉林市科技发展计划项目(2013625008)的资助。 |
| Author Name | Affiliation | | 尚 尉1,2 | 1.东北电力大学化学工程学院,吉林省吉林市,132012；2.东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨,150040 | | 孟晓敏1 | 1.东北电力大学化学工程学院,吉林省吉林市,132012 | | 梁虎南1 | 1.东北电力大学化学工程学院,吉林省吉林市,132012 | | 谢金宏1 | 1.东北电力大学化学工程学院,吉林省吉林市,132012 | | 段鹏飞1 | 1.东北电力大学化学工程学院,吉林省吉林市,132012 |
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| Abstract: |
| In order to improve the bonding between diatomite filler and lignocellulosic fiber, diatomite particles were coated with a complex which was prepared with starch and fatty acid. The coating efficiency of starch on diatomite particle surfaces was investigated by measuring the dissolved starch in the supernatant. The experimental results indicated that more than 98% of the applied starch was precipitated onto the surface of the fillers. At a dosage of 10% of the modified filler, the retention of the modified filler was higher than 73%, and the modified filler had relatively good resistance against moderate shear force. The morphology, particle size, and Zeta potential of the modified filler were also determined with scanning electron microscopy, OMEC particle size analyzer, and Zhongchen Zetasizer, respectively. |
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