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| 多孔硅酸钙与纤维共磨加填对纸张性能的影响 |
| Effect of a Novel Paper Properties of Porous Calcium Silicate Filler by Mixed Refining Filling Method |
| 收稿日期： |
| DOI：10.11980/j.issn.0254-508X.2015.01.007 |
| 关键词: 加填纸 多孔硅酸钙 加填方式 共同磨浆 |
| Key Words:filled paper porous calcium silicate filling method mixed refining |
| 基金项目: |
| 作者 | 单位 | | 郝 宁 | 陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安，710021 | | 张美云 | 陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安，710021 | | 王 建 | 陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安，710021 | | 宋顺喜 | 陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安，710021 | | 李 琳 | 陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安，710021 |
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| 摘要:采用一种新型的填料加填方式，即将多孔硅酸钙与纤维共同磨浆,研究了该共磨加填工艺对纸张性能的影响。结果表明,与传统加填方式相比,多孔硅酸钙与纤维共同磨浆后多孔硅酸钙粒径降低,浆料的滤水性能下降,加填纸松厚度下降,纸张抗张指数及光学性能提高。随着磨浆转数的增加,共磨浆中多孔硅酸钙粒径逐渐减小,共磨加填方式加填纸的松厚度降低,纸张抗张强度和光学性能提高,且呈现先快后缓的变化趋势。SEM结果表明,采用多孔硅酸钙与纤维共磨方式加填的纸张中均存在细小纤维包裹缠绕填料的复合结构,在传统加填方式加填纸中则未发现。 |
| Abstract:In this paper, a novel filler application method of porous calcium silicate filler in papermaking, i.e., mixed refining of filler and fibers, was proposed. The impact of this filling method on paper properties was investigated. The results showed that the drainage properties of the suspension of filler and fibers after mixed refining was described and the filler particle size was reduced compared to traditional filling method. The paper made from the mixed refined pulp had lower bulk and higher tensile strength and better optical properties than that made from the traditional filling method. The particle size of porous calcium silicate filler became increasingly smaller as the mixed refining revolutions increased. The increasing of mixed refining revolution was beneficial for the paper strength and optical properties, however at the expense of bulk decreasing. The change trends of these properties presented fast firstly and then became slowly. The SEM observation found the complex structure of fillers wrapped up in the microfibers on the paper, however there was no any similar filler structure was found in the paper made by the traditional filler-application method. Based on these findings, the model of improving strength and optical property by the mixed filling method was proposed to explain the mechanism of paper properties improvement. |
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