Analysis of material and characteristics of plastic bottles

Materials Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with various organic solvents. Most of the beverage bottles are plastic products. The two materials, polyethylene and polypropylene, are non-toxic and tasteless. They are safe for filling the beverage. However, once the polyethylene is slowly dissolved by high temperature or acid corrosion, and the organic solvent is released, it will cause harm to the human body.
It has been reported that long-term consumption of food contaminated with polyethylene molecules can cause dizziness, headache, nausea, loss of appetite, memory loss, and even anemia. Therefore, using vinegar in a plastic bottle is harmful to human health and has no benefit. Therefore, glassware should be used in the home instead of plastic products to hold seasonings. Special care should be taken when using plastic products. Do not touch vinegar, detergent, etc., and avoid direct sunlight, high temperature, etc., to avoid chemical reactions. In addition, when purchasing plastic tableware, you should select plastic products with PE (polyethylene) or PP (polypropylene) labeling, less decorative patterns, colorless, odorless, and smooth surface.
There are many ways to make polyethylene, the most common of which is the polymerization of ethylene at a high temperature of 200 to 300 ° C and a pressure of 1000 to 2000 atmospheres. In polyethylene, no other substances are doped. The polyethylene thus obtained has a low density and a soft texture, and has high stability to sunlight, air, moisture and chemical agents, so that no stabilizer or plasticizer is required, and most of the stabilizers and plasticizers are Toxic or highly toxic.

Features Plastic bottles are easy to carry, not afraid of falling, convenient for production, and good for recycling.

Beware of the bottom of the plastic bottle logo "No. 1" PET: mineral water bottle, carbonated beverage bottle, etc. ★ Beverage bottle, recycling, hot water use: heat resistance to 70 ° C, only suitable for warm drinks or frozen drinks, high temperature liquid, Or it is easy to deform when heated, and there is a substance that is harmful to the human body. Moreover, the scientists found that after 10 months of plastic products, it may release the carcinogen DEHP, which is toxic to the testes.
Therefore, if the beverage bottle is used up, it will be discarded. Do not use it as a water cup, or use it as a storage container to carry other items, so as not to cause health problems.
“No. 2” HDPE: cleaning products, bath products ★ Cleaning is not recommended. Do not recycle. Use: It can be reused after careful cleaning, but these containers are usually not easy to clean, leaving the original cleaning products and turning into a hotbed of bacteria. You better not recycle.
“No. 3” PVC: It is rarely used for food packaging at present. ★ It is best not to buy and use: This material is prone to harmful substances when it is hot, and even it will be released during the manufacturing process. After the poison enters the human body with food, it may be Causes breast cancer, neonatal birth defects and other diseases. Currently, containers of this material have been used less for packaging foods. If you are using it, don't let it get hot.
"No. 4" LDPE: plastic wrap, plastic film, etc. ★ Wrap film is wrapped in the surface of the food into the microwave oven: heat resistance is not strong, usually, qualified PE wrap film will appear hot melt when the temperature exceeds 110 °C It will leave some plastic preparations that the human body cannot decompose. Moreover, the food wrapped in plastic wrap is heated, and the fat in the food can easily dissolve the harmful substances in the wrap film. Therefore, when the food is placed in the microwave oven, the wrapped plastic wrap is first removed.
“No. 5” PP: Microwave lunch box ★ Remove the cover when placing it in the microwave. Use: The only plastic case that can be placed in the microwave oven can be reused after careful cleaning. Need special attention, some microwave lunch boxes, the box is indeed made of No. 5 PP, but the cover is made of No. 1 PE, because PE can not withstand high temperature, it can not be put into the microwave together with the box. To be on the safe side, remove the lid before placing the container in the microwave oven.
"No. 6" PS: Bowl of instant noodles, fast food box ★ Do not use microwave oven to cook instant noodles. Use: It is heat-resistant and cold-resistant, but it cannot be placed in the microwave oven to avoid the release of chemicals due to excessive temperature. And can not be used to carry strong acid (such as orange juice), strong alkaline substances, because it will break down the polystyrene that is not good for the human body, it is easy to cause cancer. Therefore, you should try to avoid using hot food boxes to pack hot food.
"No. 7" PC other categories: kettle, cup, bottle.