| 生物基聚丁内酰胺在开放水体中的降解行为 |
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| 引用本文： | 常斯惠,刘文韬,唐雨阳,杨紫嫣,张之桐,林绍梁,陈涛.生物基聚丁内酰胺在开放水体中的降解行为[J].上海塑料,2022(1):26-31. |
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| 作者姓名： | 常斯惠 刘文韬 唐雨阳 杨紫嫣 张之桐 林绍梁 陈涛 |
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| 作者单位： | 华东理工大学材料科学与工程学院;上海市先进聚合物材料重点实验室 |
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| 基金项目： | 上海市自然科学基金项目(21ZR1416000);大学生创新创业训练计划(S20046)。 |
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| 摘 要： | 探讨了生物基聚丁内酰胺在上海周边不同开放水体中的降解行为,对材料的失重率、黏均分子质量、表面形貌和力学性能等进行测试.结果表明:聚丁内酰胺在不同水体中均可发生本体降解,40 d内在海水中黏均分子质量降低可超过50％,并随水体盐度、浸泡时间的增加而进一步降低.水体中的微生物及潮汐带来的机械力加剧了表面腐蚀,使样品破坏.材...
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| 关 键 词： | 聚丁内酰胺 生物基塑料 降解性能 |
Degradation Behavior of Bio-based Polybutyrolactam in Open Water Bodies |
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| CHANG Sihui,LIU Wentao,TANG Yuyang,YANG Ziyan,ZHANG Zhitong,LIN Shaoliang,CHEN Tao.Degradation Behavior of Bio-based Polybutyrolactam in Open Water Bodies[J].Shanghai Plastics,2022(1):26-31. |
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| Authors: | CHANG Sihui LIU Wentao TANG Yuyang YANG Ziyan ZHANG Zhitong LIN Shaoliang CHEN Tao |
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| Affiliation: | (School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;Shanghai Key Laboratory of Advance Polymer Materials,Shanghai 200237,China) |
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| Abstract: | The degradation behavior of bio-based polybutyrolactam in different open water bodies around Shanghai was discussed.The mass loss rate,viscosity average molecular weight,surface morphology and mechanical properties of the materials were tested.The results show that polybutyrolactam can undergo bulk degradation in different water bodies.The reduction of viscosity average molecular weight exceeds 50%in seawater within 40 days and further decreases with the increase in salinity and immersion time.The microorganisms in the water and the mechanical force brought by tide aggravate the surface corrosion and destroy the samples.After being immersed in natural seawater for 100 d,the mass loss rate is as high as 70.6%,showing good seawater degradation performance. |
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| Keywords: | polybutyrolactam bio-based plastics degradation performance |
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