Plastic water cups are favored by many people, especially children, teenagers, and people who go out for activities, such as agricultural machinery operators, construction workers, and construction workers, because they have the advantages of changeable shapes, beautiful colors, low prices, and easy breakage. Expert reminds: It is unsafe to use plastic water cups for a long time, and it is not recommended to use plastic water cups. The reasons are as follows:
First, plastics are high-molecular chemical materials and often contain toxic chemical substances such as polypropylene or PVC. Drinking water with a plastic cup is inevitably used to hold hot or boiling water. When plastic cups are used for hot water, especially for boiling water, toxic chemical substances in plastics are easily deposited into water. Drinking such water for a long time will inevitably cause harm to the human body.
Second, plastic water cups are prone to bacteria and are not easy to wash. This is because the seemingly smooth surface of the plastic is not smooth, and the internal microstructure has many small pores. These small voids are easy to hide dirt and dirt, and cannot be washed away by conventional methods.
Third, most of the plastic drinking cups on the market are made of polycarbonate. Bisphenol A is one of the main raw materials for the production of polycarbonate plastics. Bisphenol A is an internationally recognized substance that can increase the risk of cancer. Prostate cancer is related to precocious puberty. Its harm to the human body is similar to smoking. After ingestion, it is difficult to decompose, has a cumulative effect, and will be passed on to the next generation. Experiments at the Harvard School of Public Health in the United States have shown that drinking beverages in plastic bottles and eating food stored in plastic containers is the main source of human intake of BPA.
Advantages and disadvantages of plastic water cup: 1: The advantage is that it is light and not easy to break. 2: The disadvantage is that it can not withstand too high temperature, too easy to decompose and deform. 3: Choose plastic cups to choose PLA material cups, it is best to choose transparent materials, so that it will not contain too many other additives and pigments, there will be no heavy metals and other harmful ingredients. 4: The statement that plastic cups are poisonous is not very comprehensive. We cannot agree that plastics have brought about major changes in our lives. Correctly understanding plastics is not about plastic color changes.
The advantages and disadvantages of paper cups: paper cups are easy to use and not easy to spread diseases. This is an advantage, but wax cups will be added to the paper cup during the manufacturing process to prevent water leakage. This wax will dissolve in water at high temperatures. Drink Going is not good for the human body. In addition, some additives will be used in the papermaking process, which will infiltrate the water at high temperatures and be harmful to humans.
