【摘要】 由于塑料在自然界中的难降解 ,“以纸代塑”引起人们的关注。然而生命周期的评价结果表明 ,纸在环境保护方面并不具有优势 ,本文采用简式生命周期矩阵对这两种包装材料进行了分析和评价更多还原

【Abstract】 Because it is difficult for plastics to decompose in nature,People pay attention to substitute plastics with paper.But the result of life cycle assessment shows that paper has not the advantage of plastics in environmental protection.This paper analyses and assesses both Plastics and paper package materials using sumple life cycle matrix.更多还原