Is polystyrene foaming harmful to the human body?

Polystyrene foam is not toxic, but many polystyrene foam boards are waste plastics or have additives, so there is no guarantee that they are not toxic.

Expandable polystyrene (EPS), commonly known as polystyrene and styrene-based copolymers, is a mixture of resins and physical blowing agents and other additives.

Expandable polystyrene has been widely used in many fields due to its excellent long-lasting thermal insulation, unique cushioning and shock resistance, aging resistance and water resistance. Because expandable polystyrene has many valuable properties, it has been widely used in daily life, agriculture, transportation industry, military industry, aerospace industry, etc., especially in construction, packaging, electronic and electrical products, ships, vehicles and aircraft manufacturing and other fields. Such as televisions, refrigerators, washing machines, air conditioners, refrigeration systems and other household appliances, electronic instruments, precision instruments, glassware, ceramic products, arts and crafts and other civilian light industry products, marine aquaculture fish rafts, seafood freezing, vegetable preservation, incubators, cold storage, refrigerated cars, railways, municipal construction, etc., all of which are inseparable from EPS plates and packaging products.

Pure polystyrene plastic foam board is non-toxic, and polystyrene plastic foam fast food box is not toxic, but the requirement is pure polystyrene.

However, polystyrene plastic foam board needs to add plastic additives to improve some properties of polystyrene plastic foam board. Additives are not necessarily guaranteed to be non-toxic. There are still many waste plastics that are reused, and it is difficult to guarantee that they are non-toxic. So it's better to be careful.

When burned, a large amount of carbon monoxide or carbon dioxide is produced, and the harmful gases produced can cause human poisoning. In the underfloor heating industry, polystyrene is often used as an insulation material for underfloor heating. Long-term exposure to high temperature environment, polystyrene will rapidly age and deteriorate, and will release formaldehyde, free benzene and other harmful breaths to the human body, and in severe cases, it will also cause cancer.

1.Polystyrene contains bisphenols, which causes the problem of male to female, 2Polystyrene foamed tableware will release dimers, trimers and other substances harmful to the human body when heated, 3

Polystyrene contains residual monomers or is toxic when used above 65 percent.

PVC resin itself is non-toxic.

PVC doors and windows have gradually replaced steel and wooden doors and windows because of their unique energy-saving, moisture-proof, sound-proof, heat-insulating and anti-corrosion properties, and have been rapidly promoted in Europe. Some countries have formulated corresponding PVC door and window standards and supporting standards, forming a complete system of PVC doors and windows.

If in the production of PVC resin, the free vinyl chloride monomer is reduced to very little, and when the finished product is made, non-toxic auxiliary materials are strictly selected, and non-toxic PVC plastic bags can be made. However, in the process of processing PVC resin into plastic bags, some auxiliary materials such as plasticizers, stabilizers, and pigments must be added, and some auxiliary materials are toxic.

How to choose a window

The most important part of the window structure is the frame of the window, and the frame should be selected in a thicker style, so that you can feel the thickness of the whole window during use. And it will feel particularly ruin and regret when you open it, and it will also make us feel its safety.

The use of windows has a lot of functionality, but the most important thing is its sealing, many people will pay attention to heat insulation, sound insulation and waterproof performance when buying windows, these properties are related to whether the sealing of the window is good. The main thing about the window with good sealing is to pay attention to the sealing strip, which can make the sealing effect of the window good and play a better role in thermal insulation.

Summary. Polystyrene has strong intermolecular force, is not easy to extrude bubbles, and has a high melting point, making foaming difficult.

Polystyrene has strong intermolecular force, is not easy to extrude bubbles, and has a high melting point, making foaming difficult.

You've done a great job! Can you elaborate on that?

Polyphenyl ethylene (PS) is a polymer that contains a benzene ring and ethylene unit in its radical chemical structure. Thermal decomposition occurs when polystyrene is heated at high temperatures, and some of the monomers are broken down into gases, resulting in the formation of foam structures. However, polystyrene has a strong interaction force between molecular chains and a small intermolecular distance, so it is difficult to get the monomers in it to release enough gas to form foam during the heating process.

At the same time, the physical properties of polystyrene are also difficult to maintain well after foaming, because its molecular lead-destroyer skeleton is relatively dense, and the open structure of the foam is not easy to maintain stability. Therefore, other blowing agents and methods are usually used to produce polystyrene foam materials, such as EPS (polystyrene granular foam), XPS (extruded polystyrene foam board), etc.