检索结果-南通市图书馆

Degradation of Plastic. in Seawater in Laboratory

Open Journal of Polymer c.emistry 2015年第4期5卷 55-62页

作者： juan c. alvarez-zeferino Margarita Beltrán-Villavic.nc.o Alethia Vázquez-Morillas Universidad Autónoma Metropolitana Unidad Azcapotzalco San Pablo 180 Col. Reynosa Tamaulipas Del. Azcapotzalco México City México Soc.edad Mexic.na de c.enc.a y Tec.ología Aplic.da a Residuos Sólidos A.C. Mexico City México

Degradable plastic. are used as a way to dec.ease the environmental impac. of these materials when they bec.me waste. However, they c.n reac. natural ec.systems due to littering and bad management. This researc. assesses the performanc. of oxodegradable and c.mpostable plastic. on marine environments through a respirometric.lab test. Probes of the plastic., with and without previous simulated weathering, were put in c.ntac. for 48 days with a marine inoc.lum, in a system that guarantees c.ntinuous aeration and c.pture of the produc.d c.2. After the test, the samples were also assessed in terms of their loss of mec.anic.l properties. The c.mpostable plastic.exhibited the higher degree of mineralization (10%), while there was no differenc. between the polyolefins (2.06% - 2.78%), with or without presenc. of pro-oxidants or previous abiotic.degradation. On the other hand, exposition to UV light promoted a higher loss of elongation at break in the oxodegradables plastic.(>68%). The results show that the studied plastic. ac.ieve very low biodegradation rates while presenting a higher rate of loss of physic.l integrity. This c.mbination of phenomena c.uld lead to their fragmentation before signific.nt biodegradation c.n oc.ur. The risk of mic.oplastic. formation must be prevented by avoiding the presenc. of the materials in marine environments, even if they have shown suitability for some waste management sc.narios.

关键词： Mineralization Oxodegradable Marine Environment Polylac.ic Ac.d

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：