PP or PC, plastic cup in the end how to choose?

[Chinese Packaging Network News] PC is not only polycarbonate, is one of the most common plastic, this material itself is non-toxic, especially for the manufacture of baby bottles, space cups, etc., because it contains bisphenol A and controversial. In theory, as long as bisphenol A is 100% converted into a plastic structure during the production of a PC, it means that the product is completely free from bisphenol A, and therefore it becomes no threat to health. However, if a small amount of bisphenol A is not converted into a plastic structure of PC, it may be released into food or drink and threaten the health and safety of users, especially young people.

To choose the plastic cup first understand PC and PP

PP is an abbreviation of polypropylene, it has good heat resistance, the product can be disinfected and sterilized at a temperature above 100°C, and it is not deformed under 150°C under the condition of no external force. It is one of the most common plastics for microwave ovens. . But a closer investigation will reveal that PC material products on the market tend to be more expensive than PP material products. Customers tend to choose the concept of “more expensive, better quality”. In fact, the price difference is due to the fact that there is currently 1 tons of PCs on the market. The price is much higher than the price of 1 ton PP. The relative ratio between the two materials will be found, PP wear resistance worse than the PC, so in the production of transparent cups, PCs are generally used as a material, PC products are more beautiful than PP products. But from a safety point of view, the processing temperature of PP plastics is 180-240°C, so boiling water does not decompose it, so PP is safer than PC.

Is it dangerous to have boiled water in a PC cup?

The cup with a bottom number of 7 is made of polycarbonate, ie PC. The general PC material plastic cup can withstand -30-140 °C temperature, but this is the physical properties of the material, but said that this material will not crack, melt in use at this temperature. But when we look at food safety, the higher the temperature, the more BPA will be released from the PC and the faster it will be. So the reason why PC has a health threat is because it will release bisphenol A at high temperatures, then this makes people "smell the color change" where is bisphenol A sacred?

Bisphenol A (BPA) is commonly used in the industry to synthesize materials such as PC and epoxy resins. In modern industry, bisphenol A can be said to be ubiquitous, and it has its presence in mineral water bottles, medical devices, and food packaging. Every year, the world produces nearly 27 million tons of plastic containing bisphenol A. Although its industrial use is very large, it is not harmful to humans. According to the study, bisphenol A can lead to endocrine disorders, and may even cause obesity caused by cancer and metabolic disorders. The European Union believes that bisphenol A-containing milk bottles will induce precocious puberty. From March 2, 2011, the production of baby bottles containing chemical substances such as bisphenol A was banned. Therefore, it is best not to use PC cups for hot water, and do not place them in a microwave oven.