Are plastic materials toxic? In real life, in fact, many items are made of plastic, which is widely used, so many people are worried that items made of this material are toxic. Let's share with you whether the plastic material is toxic.

Are plastic materials toxic? 1 Most plastic products contain certain toxicity. Generally speaking, plastic tableware requires the use of non-toxic plastics. In addition, PVC, electric jade, bakelite and other plastics have certain toxicity.

In our daily life, there are many plastic products, including plastic bags, plastic bowls, plastic storage boxes and so on.

Many plastic products contain certain toxicity, especially those tableware made of plastic (disposable tableware). Once the quality is unqualified, it is harmful to people's health.

Generally speaking, all plastic products (such as sugar cans, food boxes, food bags, chopsticks, cups, bowls, etc. ) Non-toxic plastics are required for food or tableware.

PVC, electric jade, bakelite and other plastics have certain toxicity and are generally not used in food.

PVC resin is also non-toxic. However, some auxiliary materials, such as plasticizer, stabilizer and pigment, may be added when making the finished product. Some of these auxiliary materials are toxic. Moreover, these toxic substances can be easily extracted by oil or water and various solutions in use.

Plastic materials have the advantages of light weight, high strength, good impact resistance, transparency, moisture resistance, beautiful appearance, stable chemical properties, good toughness, corrosion resistance and so on, and have widely replaced metals, wood, paper, glass, leather and so on in the packaging field. Therefore, plastic packaging has played an irreplaceable role in alleviating the pressure of resources and energy in China.

Is plastic poisonous? Industrial grade plastics are toxic, while food grade plastics are non-toxic.

Usually, PP (polypropylene) and PE (polyethylene) are used to package food. These plastics are environmentally friendly, safe and non-toxic, while common raincoats, building materials, plastic films and other plastics belong to industrial-grade plastics and contain certain harmful components.

The main component of plastic is resin. Resin refers to a polymer compound without various additives. The word resin was originally named after the lipids secreted by animals and plants, such as rosin and shellac. Resin accounts for about 40% ~ 100% of the total weight of plastics. The basic properties of plastics mainly depend on the properties of resin, but additives also play an important role. Some plastics are basically composed of synthetic resin with little or no additives, such as plexiglass.

Are plastic products poisonous?

Plastics are difficult to degrade, and the use of plastic products is resisted all over the world for environmental protection. But plastic products do bring great convenience to our lives, so plastic products are still widely used now. It should be noted that some plastic products are toxic, so be careful when using plastic products.

Know how to choose a good plastic wrap: plastic wrap is often used in the family, and plastic wrap is also good or bad, so it depends on the scope of application when choosing plastic wrap. Now there are two kinds of plastic wrap, one is refrigerator plastic wrap and the other is microwave plastic wrap. The latter is superior to the former in heat resistance and non-toxicity. In order to avoid trouble, consumers had better choose the latter, otherwise they will use it separately. It also depends on the raw materials used for plastic wrap.

Plastic wrap is generally made of polyethylene and polyvinyl chloride. Polyethylene plastic wrap without plasticizer is much safer than PVC plastic wrap with plasticizer. In addition, it depends on the cold and heat resistance of plastic wrap. If you need to heat for a long time, you should buy plastic wrap with good heat resistance.

Know how to choose a good plastic bag: it is common to use plastic bags, but some plastic bags are harmful to human body, such as plastic bags made of PVC, which are toxic varieties. Although PVC resin is not toxic, when making plastic bags, plasticizer dibutyl phthalate or dioctyl phthalate will be added, and then it will be toxic. It is worth noting that ultra-thin plastic bags are generally made of recycled waste plastics.

And most of them have not been disinfected, so the safety can be imagined. Therefore, it is best not to use ultra-thin plastic bags, especially bulk food. Here is a method to identify the quality of plastic bags: non-toxic plastic bags are milky white, translucent or colorless and transparent, elastic, and the surface looks like a layer of wax; The color of the toxic plastic bag is cloudy or light yellow, and it feels a little sticky when touched by hand.

Are plastic materials toxic? Is the plastic bottle safe?

At present, the materials of baby bottles in the baby products market are mainly divided into three categories: plastic, glass and silicone. Among them, plastics are divided into PC, PA, PP, PES and PPSU, and silica gel is divided into ordinary all-silica gel materials and nano-silver antibacterial silica gel materials. Many people will question whether plastic bottles are really safe. In fact, these concerns are all misunderstandings about plastic bottles. The production of plastic bottles is different from ordinary plastic bottles, and its material is special, high temperature resistant, nontoxic, durable and easy to carry.

Don't worry about the high temperature disinfection of plastic bottles.

PP is a crystalline polymer. Among the commonly used plastics, PP is the lightest, with a density of only 0.9 1g/cm3 (smaller than water). Among general plastics, PP has the best heat resistance, its thermal deformation temperature is 80- 100℃, and it can be boiled in boiling water.

PES plastic baby bottle has good heat resistance and can withstand 182 degree high temperature sterilization, boiling, steam, microwave sterilization and high temperature sterilizer. Compared with PP, PES plastic baby bottle has better heat resistance, high chemical stability and no chemical toxin at high temperature.

PPSU is a material with excellent heat resistance, and the heat resistance temperature is as high as 207 degrees. This plastic bottle can undergo repeated high-temperature boiling, hospital vacuum high-pressure disinfection, microwave heating disinfection and liquid medicine disinfection.

So, take the plastic bottle for disinfection boldly! Don't worry about its deformation, pay attention to control the temperature! Plastic bottles are safe and nontoxic.

Because some PC plastic bottles may produce a toxic substance bisphenol A after high temperature disinfection, which is not good for babies, while PP material is relatively stable and will not emit harmful substances such as bisphenol A.

PES plastic bottles have good heat resistance, and the raw materials do not contain 65 chemicals (glass hormones) that may interfere with endocrine, so they are safe plastic materials.

PPSU material has excellent drug resistance and acid and alkali resistance, and can withstand the cleaning of common chemicals and detergents without chemical changes. PPSU bottle is proved to be free of bisphenol A toxin, which has three advantages: non-toxic glass bottle, light plastic PC bottle and non-fragile. PPSU is the most ideal and reliable bottle material. PPSU bottle is widely used by children in Japan, Europe and America, but it is expensive and has few varieties, so it is not easy to buy.