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| 涤棉织物化学回收工艺研究 | |
| 引用本文： | 刘伟昆,杨中开,唐世君,赵国樑. 涤棉织物化学回收工艺研究[J]. 合成纤维工业, 2013, 36(2): 13-16 |
| 作者姓名： | 刘伟昆 杨中开 唐世君 赵国樑 |
| 作者单位： | 1. 北京服装学院材料科学与工程学院,北京,100029 2. 北京服装学院服装材料研究开发与评价北京市重点实验室,北京,100029 3. 总后军需装备研究所,北京,100088 |
| 摘 要： | 以废旧涤棉织物为原料,乙二醇(EG)为醇解剂,通过改变醇解时间、醇解温度、EG/废旧涤棉织物中聚对苯二甲酸乙二醇酯(PET)质量比(mEG/mPET)、催化剂种类及用量等研究了蓬松态下废旧涤棉织物的醇解工艺,以及醇解过程对涤棉织物中棉纤维性能的影响。结果表明:随着醇解时间、醇解温度的提高,mEG/mPET的增大,涤棉织物的醇解程度增大,各参数达到一定程度后醇解程度基本不变;最佳醇解工艺为涤棉织物中mEG/mPET为2/1,催化剂用量为涤棉织物中PET质量的0.30%,醇解温度196℃,醇解时间1 h;在乙酸锌、碳酸钠、乙酸钾、氯化镁4种催化剂中,碳酸钠综合催化效果最佳;经醇解过程后涤棉织物中棉纤维表面变得粗糙,力学性能有较大下降。 |
| 关 键 词： | 聚对苯二甲酸乙二醇酯纤维 废旧涤棉织物 乙二醇 醇解 碳酸钠 力学性能 化学回收 |
Chemical recycling process of polyester/cotton blend fabrics |
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| Liu Weikun , Yang Zhongkai , Tang Shijun , Zhao Guoliang. Chemical recycling process of polyester/cotton blend fabrics[J]. China Synthetic Fiber Industry, 2013, 36(2): 13-16 | |
| Authors: | Liu Weikun Yang Zhongkai Tang Shijun Zhao Guoliang |
| Affiliation: | liang1 (1.School of Materials Science and Engineering,Beijing Institute of Fashion Technology,Beijing 100029;2.Beijing Key Laboratory of Clothing Materials R&D and Assessment,Beijing 100029; 3.The Quartermaster Institute of the General Logistics Department of CPLA,Beijing 100088) |
| Abstract: | Using post-consumed polyester/cotton blend fabrics as raw material and ethylene glycol(EG) as alcoholysis agent,the alcoholysis process of post-consumed polyester/cotton blend fabrics under bulky condition was studied by regulating alcoholysis time and temperature,mass ratio of EG and polyethylene terephthalate(PET) in the fabrics(mEG/mPET),catalyst variety and amount,as was the effect of alcoholysis process on the properties of cotton fiber in polyester/cotton blend fabrics.The results showed that the alcoholysis degree rose while increasing the alcoholysis time and temperature and mEG/mPET,but almost kept unchanged as these parameters rose to a certain degree;the alcoholysis process conditions were optimized as followed: mEG/mPET of 2/1,0.30% catalyst based on PET in the fabrics by mass fraction,alcoholysis temperature 196 ℃ and time 1 h;sodium carbonate had the best catalysis activity among the four catalysts of zinc acetate,sodium carbonate,potassium acetate,magnesium chloride;cotton fiber in polyester/cotton blend fabrics had rougher surface and mechanical properties greatly decreased after alcoholysis process. |
| Keywords: | polyethylene terephthalate fiber post-consumed polyester/cotton blend fabrics ethylene glycol alcoholysis sodium carbonate mechanical properties chemical recycling |
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