Different material selection and use of plastic bottles
Plastic bottle, with its colorful, not easily broken, and durable, brought a lot of convenience to people‘s lives, import and export is used in many food and beverage plastic bottle as packaging. However, this year, “Bisphenol a“, and “plasticizer“ storm effects, plastic bottles being pushed up into the air waves. So just what kind of plastic bottles is safe, how to choose and use plastic bottles also became the focus of consumer concerns. Careful consumer will find, most of the bottom of the plastic bottle has a triangle with an arrow sign, symbol has a number between 1-7 (as shown in the following figure), in fact this is the plastic bottleof “security level“ triangle symbol is plastic recycling marks, figures show that the production of the main materials of plastic bottles. 1th, 2nd, 3rd, 4th, 5th, 6th, 7th
PETE HDPE LDPE PP PS OTHER v “1th“ plastic bottles are mainly composed of polyethylene glycol terephthalate resin, the English abbreviation for “PET”. Common water bottles, soda bottles, are made of this material. This material is plastic bottles heat up to 70 ℃, heat deformation, and thawing out substances which are harmful to the human body. The plastic bottle could unleash cancer after long-term use of DEHP, recycling is not recommended. “2nd“ plastic bottles are mainly composed of high density polyethylene, the English abbreviation
“HDPE”. Common white medicine bottles, bottles of the cleaning bath products, much was made of this material, 110 ℃ high temperature resistance, but not completely clean and bacteria, not recommended for cycling use. “3rd“ the main ingredient for plastic bottles, PVC, abbreviations as “PVC”. This kind of material is rarely used in food and beverage packaging of plastic bottles, which contains plastic more doses than ordinary plastic bottle, when it encounters a high temperature or grease, plasticizer will migrate into beverages, enters the human body can cause diseases such as breast cancer, birth defects, risk higher plasticizer. “4th“ the main ingredient for low density polyethylene plastic bottle, the English abbreviation for “LDPE”. Heat resistance is not strong, often in temperatures exceeding 110 degrees when hot–melt, and will leave the human body is unable to break down plastics formulations. Storage of food and beverages when heated in a microwave oven. “5th“ plastic bottles are mainly composed of polypropylene, the English abbreviation for “PP”. 130 ℃ high temperature resistance, this is the only way to put them into the microwave oven plastic boxes, reusable after cleaning carefully. “6th“ the main ingredient for Polystyrene plastic bottles, the English abbreviation for “PS”. Although the heat-resistance, cold resistance, but cannot be heated in the microwave, or release toxic substances. Cannot be used to hold strong acids (such as orange juice), strong alkaline substance or decomposition of harmful styrene. “7th“ mainly composed of polycarbonate plastic bottles and other categories, the English abbreviation for “PC”. Common pot, space cups, bottles, are made fromthis material. Since Bisphenol a constitutes one of PC material, under certain conditions
PC plastic bottle of Bisphenol a is released, there is a certain risk. Above is the common type of plastic bottles on the market and its material, in accordance with the relevant provisions of the State, used for storingfood and beverages in plastic bottles with clear plastic signs. Therefore, in order to reduce security risks, consumers pay attention when buying plastic bottles at the end of the triangular recycling symbol, you should try to choose a PET, PE, PP material for plastic bottles, and used strictly in accordance with the conditions laid down in.
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