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| Study on the Properties of Starch Based Bio-latex Prepared with Different Methods |
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| DOI：10.11980/j.issn.0254-508X.2017.01.001 |
| Key Words:starch based bio-latex coating color properties coated paper performance coating layer microstructure |
| Fund Project:国家自然科学基金项目(51403239)。 |
| Author Name | Affiliation | | 杜艳芬1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 刘金刚1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 王加福1,2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 |
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| Abstract:Physical properties of various starch based bio-latexes prepared with chemical modified method, mechanical grinding method and extrusion methods, and their effects on coating color and coated paper performance were analyzed in this article. The results indicated that the commercial extruded bio-latex was evenly size distributed spheres with median diameter of 0.184 μm, while the mechanical ground bio-latex had median diameter of 0.161 μm with much wider particle size distribution, which had a relatively high solubility and swellability. Chemical modified bio-latex caused lower coatings viscosity and poor water retention capacity, whereas mechanical ground bio-latex led to higher coatings viscosity and the best water retention ability. Coating colors containing different bio-latexes tended to show similar viscosity as shear rate exceeded 100 s-1. Coated paper porosity decreased as a result of the addition of bio-latex, whereas brightness was enhanced significantly. Both the chemical modified bio-latex and the extruded one could lead to preferable paper properties, while self-prepared mechanical ground bio-latex had a little negative impact on the property of the coated paper. |
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