What are the materials of plastic kettle sets? Friends often ask this question. We all know that plastic kettle sets are very practical and are favored by many customers, but many friends often consider the material when choosing, so what are the materials of plastic kettle sets? ?

The common plastic kettle sets in the Chinese market are mainly made of PP, PC, PET, PS, EPS, PLA, and these materials are marked with 1 to 7 triangle symbols on the bottom of the plastic cup. Among the six materials, PP and PC are the most widely used in the production of space cups, sports water bottles, plastic water cups and other production fields. Are PET, PS, EPS, PLA plastic cups good, and what is the difference between PP and PC plastic cups?

PP plastic cup: PP plastic cup is the most common in China. If you add certain other formulas, it can withstand the temperature of minus 30 degrees to 120 degrees. PP plastic cups are more cost-effective and hygienic. Therefore, it is the most widely used, but because many domestic black-hearted plastic cup manufacturers use recycled PP material, garbage material PP, recycled material PP to make disposable cups, if the cups made of such materials are used, they will still be harmful to the human body. There are relatively big disadvantages, so when buying disposable plastic cups, don't just be cheap, choose regular manufacturers, big manufacturers, and manufacturers with QS logo. The PP plastic cup is marked with "05" at the bottom of the cup.

PC plastic cup: PC (polycarbonate) marked with "07" at the bottom of the cup is an amorphous engineering material with particularly good impact strength, thermal stability, gloss, antibacterial properties, flame retardant properties and resistance to Pollution, its melting temperature can reach 260 ~ 340 ℃. PC is a widely used material, mostly used to make milk bottles, space cups, etc. It is controversial because it contains toxic bisphenol A. However, as long as the cup of this material is 100% converted into a plastic structure in the process of making PC, the cup will not release bisphenol A that is harmful to the human body. However, no manufacturer can guarantee that bisphenol A has been completely converted, so it is necessary to pay attention to the use process.

Bisphenol A, the higher the temperature, the more released, and the faster the speed. If you happen to have a plastic product numbered 07 in your hand, you can avoid it by the following methods: do not heat it when using it, do not expose it to direct sunlight; do not clean the kettle with a dishwasher or a dishwasher; before the first use, use baking soda powder Wash with warm water and dry naturally at room temperature; if the container is damaged or damaged, stop using it immediately, because if there are tiny pits on the surface of plastic products, it is easy to hide bacteria; avoid repeatedly using aged plastic cups.

PET plastic cup: PET plastic cup is characterized by high transparency and high hardness, and is the most high-grade material in disposable cups. However, due to the problem of raw materials and manufacturing costs, the application is not very wide. This material is generally marked as "01" (polyethylene terephthalate) at the bottom of the plastic cup, and is most commonly used in the production of bottled beverages such as mineral water and carbonated drinks.

PS plastic cup: mainly used on the injection cup, like the aviation cup on the plane is made of PS injection. However, cups made of this material cannot be used to hold strong acid or strong alkaline beverages, such as juice, milk, etc., because they will decompose polystyrene carcinogens that are not good for the human body. Although this kind of cup is heat-resistant and cold-resistant, it will also release chemicals due to excessive temperature, so it is not recommended to directly heat drinks with PS plastic cups in the microwave oven. The logo on the bottom of the cup is "06".

EPS plastic cups: commonly known as foaming cups or foam cups, EPS plastic cups are relatively few in mainland China due to the strict prohibition by the state, but there are still more in Tainan. Its characteristic is that it can play a certain role in heat insulation and cold insulation when drinking beverages from a cup. However, the foam cup cannot be recycled and reused, and when EPS is incinerated, it will produce poisonous gas and cause cancer, which is quite harmful to the human body.

PLA plastic cup: PLA is a new type of environmentally friendly material. Its characteristic is that it can be degraded when buried in the soil after use. Now this material is truly degradable only in the United States. In China, the products that can be degraded are basically composed of some starch, PP material and some adhesives. Such products will become moldy when placed in a humid place. And adhesives are also harmful to the human body. There is currently no clear digital identification for cups made of this material.