The triangle at the bottom of the plastic cup is 7, can you connect hot water?

No. 7 plastic indicationPolycarbonate(PC) other plastic products. PC water bottles should not be used for hot water.

PC is a material that is widely used, especially in the manufacture of baby bottles, space cups, etc., because it contains bisphenol A

And controversial. Experts pointed out that, theoretically, as long as BPA is 100% converted into a plastic structure in the process of making PC, it means that the product is completely free of BPA, let alone released.

If a small amount of BPA is not converted into a plastic structure of PC, it may be released into food or drink. Therefore, it is important to take extra care when using this plastic container.

Polycarbonate is a polymer containing a carbonate base in the molecular chain.

According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, due to the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates, which limits their use in engineering plastics.

aspects of application.

Only aromatic polycarbonate is industrially produced. Due to the particularity of polycarbonate structure, it has become the fastest growing general engineering plastic among the five major engineering plastics.

The plastic water cup indicates that the plastic water cup is a product of PC material. Do not flush hot water.

Marked with Safest. The plastic material marked as 1 is generally used to make mineral water bottles, beverage bottles, etc., with a maximum heat resistance of 70 degrees Celsius, and most of them are disposable; The material marked as 2 is often used in the production of medicine bottles, food plastic bags, etc., and can withstand high temperatures of 110 degrees Celsius; 4. Used to make plastic wrap, etc.; 5. It is used to make microwave ovens, lunch boxes and other products, which can withstand high temperatures of 130 degrees Celsius.

The number 7 in the triangle means that your cup is made of PC, and PC has better high temperature resistance.

There are numbers in the triangle that can be seen on many plastic bottles and cups, and the numbers inside actually represent different plastic materials, which are generally marked with any number in 1 7.

There are numbers inside the triangle indicating that this plastic product is No. 7 plastic, which indicates polycarbonate (PC) and other plastic products. This material is also used a lot in daily life, and is often used to make baby bottles, space cups, etc.

This product contains BPA, a controversial ingredient, and although the amount of BPA that can be released into food or drink may be small, special care should be taken not to use this plastic container for disinfection in hot water or high-temperature sources, as BPA can be released at temperatures above 100 degrees Celsius. And the higher the temperature, the more it is released and the faster it is.

Plastic Cup Pick:

1. Observe the water cup certificate: The water cup produced by the regular manufacturer has a certificate, and the certificate will be marked with the production license mark, which is what we often call the hail "QS" mark.

2. Smell whether the water cup has a peculiar smell: open the lid of the water cup, smell the water cup for any peculiar smell, if there is a peculiar smell, it is not recommended to buy, because such a plastic water cup is a fake and shoddy product.

3. Choose according to the capacity: the capacity should be considered when buying a water cup, there are many capacity grades of plastic water cups, and the capacity of the water cup can be determined according to your daily water intake.

4. Detection of tightness: add 1 3 cups of boiling water to the cup, screw the lid and shake it slightly, if you hear the sound of air leakage, and there will be water splashes at the same time, it means that the sealing of the water cup is not good.

5. Selection according to the material: The label at the bottom of the plastic cup will be marked with the material of the water cup, we should choose the silicone resin material when selecting the water cup, but the price of this plastic water cup is generally higher. <>

Dear, I'm glad to answer for you: What is the triangle logo 7 at the bottom of the plastic cup? Answer: PC (polycarbonate) 7——— stands for PC (polycarbonate) and other categories Mostly used in the manufacture of baby bottles, space cups, etc., try not to use it to hold boiling water, otherwise it is easy to release toxic substances, do not heat when using, do not expose to direct sunlight.

Plastic cups refer to disposable containers used to hold beverages and tea. It is a non-degradable product and is the main ** of "white pollution". The largest amount of disposable plastic cups used in Senwu is generally in beverage stores and hot and cold drink shops.