| 利用废弃涤棉混纺纤维回收涤纶 |
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| 引用本文： | 孔伟,于永玲,吕丽华.利用废弃涤棉混纺纤维回收涤纶[J].大连工业大学学报,2012(5):356-358. |
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| 作者姓名： | 孔伟 于永玲 吕丽华 |
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| 作者单位： | 大连工业大学绿色纤维材料应用技术研究所 |
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| 基金项目： | 辽宁省教育厅创新团队项目(2006T027) |
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| 摘 要： | 对稀酸法分离废弃涤棉混纺纤维,回收涤纶的工艺过程进行了研究。采用正交试验考察了盐酸质量分数、反应时间、反应温度及固液比等因素对分离回收涤纶效果的影响。研究表明,影响因素的显著性大小依次为:反应时间、盐酸质量分数、反应温度、固液比。最优工艺为:盐酸质量分数10%,固液比40g/L,温度95℃,反应时间90min。反应后的涤纶成纤维状,棉纤维水解成细小粉末,通过过滤分离达到了回收涤纶的目的。
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| 关 键 词： | 废弃纤维 涤棉混纺 回收 涤纶 |
Recycling polyester from waste polyester-cotton blends |
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| KONG Wei,YU Yong-ling,LV Li-hua.Recycling polyester from waste polyester-cotton blends[J].Journal of Dalian Dalian Polytechnic University,2012(5):356-358. |
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| Authors: | KONG Wei YU Yong-ling LV Li-hua |
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| Affiliation: | Green Fiber Application Technology Research Institute,Dalian Polytechnic University,Dalian,116034,China |
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| Abstract: | The separation process of waste polyester-cotton fiber blends with dilute acid was studied to recycle polyester.The effect of hydrochloric acid concentration,reaction time,reaction temperature and solid-liquid ratio on the separation and recovery of polyester was studied through orthogonal experiment.The results showed that the impact factors order were: reaction time>mass fraction>reaction temperature>ratio of solid to liquid.The optimal conditions were: 10% of hydrochloric acid concentration,40 g/L of liquid,95 ℃ and 90 min.The polyester fibers were hydrolyzed into fibrous and cotton fiber were hydrolyzed into small powders after reaction so that the polyester was got. |
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| Keywords: | waste fiber polyester-cotton blends recycling polyester |
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