镁合金在笔记本电脑外壳材料替代中的环境协调性评价  

Life cycle assessment study of magnesium alloys' and plastics'laptop shell

作　　者：赵建华[1] 尹冬梅[1] 黄慧兰[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《轻金属》2009年第3期62-64,共3页Light Metals

摘　　要：应用生命周期评价(life cycle assessment,LCA)方法,对镁合金以及塑料这两种笔记本电脑外壳进行了初步评价和比较,结果表明镁合金能源消耗、温室效应方面为塑料的284.91%、138.46%。但在材料的性能、资源消耗、酸化效应、生态毒理、材料的再生性等方面明显优于塑料。This article compared and assessed both magnesium alloys and plastics as laptop computer shell materials through life cycle assessment. The result shows that energy consumption, greenhouse effect of magnesium alloys is 284.91%, 138.46 % of plastics. However, the magnesium alloys are more superior to plastics in therrns of performances, resource consumption, acidification, human toxicity and recycling.

关 键 词：生命周期评价(LCA) 镁合金 塑料 环境影响 

分 类 号：X820.3[环境科学与工程—环境工程] TG146.22[一般工业技术—材料科学与工程]