| 马来酸酐熔融接枝醋酸纤维素的研究 |
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| 引用本文： | 揣成智,王福强,钟沿东,徐雪梅. 马来酸酐熔融接枝醋酸纤维素的研究[J]. 天津科技大学学报, 2011, 0(4): 35-38 |
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| 作者姓名： | 揣成智 王福强 钟沿东 徐雪梅 |
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| 作者单位： | 天津科技大学材料科学与化学工程学院;东莞市民兆塑料制品有限公司; |
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| 摘 要： | 以醋酸纤维素(CA)为基体树脂,过氧化二异丙苯(DCP)为引发剂,马来酸酐(MAH)为接枝单体,在双螺杆挤出机中于175～200℃进行熔融接枝.以红外光谱表征法确定了接枝反应的发生,研究了引发剂、接枝单体用量对接枝反应的影响,并研究了接枝单体及其用量对接枝CA材料热稳定性能、流变性能的影响.结果表明:引发剂DCP添加量为0.4%时接枝率最高;随着MAH添加量的增加,接枝率随之增加;CA-g-MAH较纯CA的热稳定性有所提高,熔体黏度下降,熔体流动速率提高.
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| 关 键 词： | 醋酸纤维素 马来酸酐 熔融接枝 |
Study of Melt Graft Modification of Cellulose Acetate by MAH |
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| CHUAI Cheng-zhi,WANG Fu-qiang,ZHONG Yang-dong,XU Xue-mei. Study of Melt Graft Modification of Cellulose Acetate by MAH[J]. Journal of Tianjin University of Science & Technology, 2011, 0(4): 35-38 |
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| Authors: | CHUAI Cheng-zhi WANG Fu-qiang ZHONG Yang-dong XU Xue-mei |
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| Affiliation: | CHUAI Cheng-zhi1,WANG Fu-qiang1,ZHONG Yang-dong2,XU Xue-mei1(1.College of Material Science and Chemical Engineering,Tianjin University of Science & Technology,Tianjin 300457,China,2.Dongguan Minzhao Plastic Products Co.,Ltd.,Dongguan 523000,China) |
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| Abstract: | The melt graft of maleic anhydride(MAH)onto cellulose acetate(CA)was studied.The grafting reaction was initiated by DCP in a twin screw extruder at 175～200 ℃.IR spectra showed that the grafting reaction had occurred.The effects of DCP and amount of MAH on the reaction were studied.The effects of MAH and its amounts on the thermal stabil-ity and rheological behavior of grafted CA were studied.The results showed that grafting rate was highest when the amounts of DCP was 0.4%.And the grafting rate was higher when the amount of MAH was higher.The thermal stability of CA-g-MAH was better than CA’s.The melt viscosity of CA-g-MAH was lower and the MFR was higher. |
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| Keywords: | cellulose acetate MAH melt graft |
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