塑料制品数字含义（Digital meaning of plastic products）.doc

塑料制品数字含义（Digital meaning of plastic products） There is a triangle sign at the bottom. It is a plastic recycling mark. The number in the sign identifies the material used in the kettle. For specific material knowledge, see below: (this is for all plastic containers) 01 - PET (polyethylene terephthalate) Mineral water bottles and carbonated beverage bottles are made of this material. Dong Jinshi pointed out that the beverage bottles can not be recycled, hot water, this material is heat-resistant to 70 degrees, only suitable for warm drinks or frozen drinks, high temperature liquid or heating is easy to deformation, there are harmful substances dissolved. And, scientists have found that after 10 months, the plastic could release carcinogens that are toxic to humans. As a result, when a beverage bottle is used up, it is thrown away. It should not be used as a drinking cup or used as a storage container to hold other articles so as not to cause health problems. 02 - HDPE (HDPE) Bearing cleaning supplies, plastic containers, bath products currently used in supermarkets and shopping malls in the plastic bag is made of such material, resistant to high temperature of 110 DEG C, indicating the food use of plastic bags can be used for holding food. Bearing cleaning supplies, plastic containers and bath products can be repeatedly used after careful cleaning, but these containers are usually not good cleaning residue, the original cleaning supplies, become a breeding ground for bacteria, cleaning is not thorough, it is best not to use circulation. 03 - PVC (polyvinyl chloride) According to reports, this material of plastic products easy to produce toxic and harmful substances from two aspects, first, the production process has not been fully polymerized single molecule vinyl chloride, and two are plasticizers harmful substances. These two substances are easy to precipitate when they encounter high temperature and fat. Toxic substances enter the human body with food and cause can