相对于金属、石材、木材,塑料制品具有成本低、可塑性强等优点,在国民经济中应用广泛,塑料工业在当今世界上占有极为重要的地位,多年来塑料制品的生产在世界各地高速度发展。资料显示,目前我国塑料消费量超过6000万吨,占世界塑料消费总量2.38亿吨的四分之一,超过美国居世界第一。人均消费超过了世界40kg的平均水平,成为真正的世界塑料生产、消费、进出口大国。同时,随着汽车工业的不断发展,人们对汽车 Relative to the metal, stone, wood, plastic products with low cost, plasticity and other advantages, widely used in the national economy, plastic industry occupies a very important position in today’s world, plastic products over the years the rapid development of production around the world . Data show that at present, China’s plastic consumption exceeds 60 million tons, accounting for a quarter of the world’s total plastic consumption of 238 million tons, surpassing the United States ranking first in the world. Per capita consumption has exceeded the average level of 40kg in the world and has become a real power in the world of plastic production, consumption, import and export. At the same time, with the continuous development of the automotive industry, people on the car