舍尔说，生产生物可降解塑料很重要，因为在美国，只有3.5%聚丙烯塑料得到回收利用。
Creating plastics that are biodegradable is important, Scheer says, because just 3.5 per cent of polypropylene plastic in the United States gets recycled.
这可是一个很大的事情。目前市场已经在用生物可降解塑料，一些零售商实际用它来替代普通塑料袋。
There are biodegradable plastics on the market now, and some retailers actively use it instead of normal plastic bags.
将其与天然高分子或各种可降解塑料混合也可以有效促进PP的生物降解；
The biodegradability can also be improved by blending some natural polymer or degradable plastics;
将其与天然高分子或各种可降解塑料混合也可以有效促进PP的生物降解；
The biodegradability can also be improved by blending some natural polymer or degradable plastics;
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