PP的意思是聚丙烯树脂。生活中我们用到的塑料餐具下面很多都写有PP这两个字母。如果有“PP7”这三个字，那就说明这种塑料是最好的塑料了（目前来说），是可以在微波炉中加热的。聚丙烯树脂具有原料来源丰富、质量轻、性能/价格比优越以及优良的耐热性、耐化学腐蚀性、易于回收等特点，是世界上应用最广、产量增长最快的树脂之一。

 

PP means polypropylene resin. Many of the plastic dishes we use in life have the letters PP written under them. If you have the word "PP7," it means that this plastic is the best plastic(for now) and can be heated in a microwave oven. Polypropylene resin is one of the most widely used and the fastest growing resins in the world. It has rich sources of raw materials, light quality, superior performance/price, excellent heat resistance, chemical corrosion resistance, and easy recovery.