| TDI优化改性苎麻纤维研究 |
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| 引用本文： | 杨敏鸽,王亚亮,王俊勃,马亚明,陈立成,胡新煜. TDI优化改性苎麻纤维研究[J]. 纺织高校基础科学学报, 2010, 23(1): 91-94 |
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| 作者姓名： | 杨敏鸽 王亚亮 王俊勃 马亚明 陈立成 胡新煜 |
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| 作者单位： | 1. 西安工程大学环境与化学工程学院,陕西,西安,710048
2. 西安工程大学机电工程学院,陕西,西安,710048 |
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| 基金项目： | 陕西省科学技术研究发展计划 |
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| 摘 要： | 研究了超声条件下甲苯-2,4-二异氰酸酯(TDI)与苎麻原麻、精干麻和麻纱接枝改性的优化工艺条件,并用红外光谱(IR)、紫外光谱(UV)和扫描电镜(SEM)对改性后的纤维进行了结构表征.结果表明,以15%质量分数NaOH处理纤维20h,超声条件下浓硫酸为催化剂,浴比1∶30,苎麻原麻与TDI接枝反应最优化的实验条件是反应温度50℃,反应时间8h,TDI(mL)与麻纤维(g)的用量比为0.5∶1,接枝率达23.4%.精干麻与TDI接枝反应温度50℃,反应时间10h,TDI(mL)与原麻(g)的用量比为2∶1,接枝率达44.7%.苎麻纱线与TDI接枝反应温度60℃,反应时间10h,TDI(mL)与麻纤维(g)的用量比为1∶1,接枝率可达39.6%.
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| 关 键 词： | 苎麻纤维 接枝改性 超声波 甲苯-2，4-二异氰酸酯 |
Study of TDI grafting ramie fiber under ultrasonic |
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| YANG Min-ge,WANG Ya-liang,WANG Jun-bo,MA Ya-ming,CHEN Li-cheng,HU Xin-yu. Study of TDI grafting ramie fiber under ultrasonic[J]. Basic Sciences Journal of Textile Universities, 2010, 23(1): 91-94 |
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| Authors: | YANG Min-ge WANG Ya-liang WANG Jun-bo MA Ya-ming CHEN Li-cheng HU Xin-yu |
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| Affiliation: | 1. School of Enviromnental ＆ Chemical Engineering, Xi＇an Polytechnic University, Xi＇an 710048, China; 2. School of Mechanical ＆ Electrical Engineering,Xi＇an Polytechnic University ,Xi＇an 710048 ,China) |
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| Abstract: | Graft copolymerization of TDI onto ramie fibers under ultrasonic condition is studied using raw ramie, mercerized degummed ramie and ramie yam materials. The graft copolymers are investigated using FT-IR, UV and SEM. Experimental results show that the optimum reaction conditions of grafting between the ramie and TDI is after treatmem of 15% NaOH for 20h, under ultrasonic, H2SO4 as catalyst, with the bath ratio at 1： 30. The ratio of TDI to raw ramie is 0.5 ： 1, at 50℃ for 8 h, the grafting rate can reach 23.4%. The ratio of TDI to mercerized degummed ramie is 2： 1 ,at 50℃ for 10 h, the grafting rate can reach to44. 7%. The ratio of TDI to ramie yam is 1： 1,60℃ for 10h, the grafting rate can come to 39. 6%. |
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| Keywords: | ramie graft copolymerization ultrasonic TDI |
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