全球塑料消费量2010年超过2.5亿t,中国2010年合成树脂表观消费量为6 500万t,加上循环利用的填充物及各种助剂,塑料的实际消费量在8 000万t左右。考虑到塑料的密度在1 g/cm3左右,而钢铁的密度为7.8 gcm3,就材料体积而言,塑料制品的体积已经与2010年我国6.27亿t的粗钢产量的体积相当。中国已成为全球塑 Global plastics consumption surpassed 250 million tons in 2010, while China’s apparent consumption of synthetic resins in 2010 was 65 million tons. Together with recycled filling materials and various additives, the actual consumption of plastic materials is about 80 million tons . Considering that the density of plastic is about 1 g / cm3 and the density of steel is 7.8 gcm3, the volume of plastic products has been comparable to that of China’s 627 million t of crude steel in terms of material volume. China has become a global plastic