Is polystyrene harmful to the body and what is the harm of styrene to the body

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. In the mid-nineties, it was rumored that polystyrene foam (EPS) was toxic, especially polystyrene foam meals, and once the polystyrene foam board burned, it emitted a large amount of toxic gas.

So much so that in 99 years the use of foamed tableware was banned. Later, many experts came out to explain that there is no poison, such as the report: EPS does not produce dioxins, for environmentally friendly materials 2004-9-4 13:

48:01 As we all know, EPS is derived from petroleum products, and the pollution discharge in the production process is easier to meet the emission standards, and the processing process of its products is more in line with the requirements of environmental protection, and there is no pollutant generation, which is clean production. In recent years, some people have put forward the claim that EPS combustion produces dioxins and other harmful substances, and industry experts have a negative attitude

Because the basic composition of EPS is carbon and hydrogen, which does not contain harmful substances, after complete combustion, the products are carbon dioxide and water, and the ash of complete incineration does not contain heavy metals such as lead and cadmium; Carbon black produced by incomplete combustion due to insufficient air is not a hazardous substance. Experts said that dioxins are formed by the reaction of carbon, hydrogen, oxygen and chlorine at high temperatures, and the conditions for the formation of dioxins are that when a certain concentration of chlorine exists and the reaction temperature is 250 400, EPS does not contain chlorine, and dioxins are not produced in theory when incinerated alone; In response to the suggestion that trace amounts of chlorine present in the atmosphere may participate in the reaction and thus form dioxins, the EPS** Committee of Japan commissioned an external agency to conduct tests, and the results showed that no dioxins were found in the combustion products. In 1992, the German Discipline Research Community studied the life cycle evaluation of EPS and pulp molded and recycled cardboard and concluded that:

EPS has little impact on the global environment and can be called an environmentally friendly material. I think they say that polystyrene foam is not toxic and credible, but many polystyrene foam boards are waste plastics or have additives, so there is no guarantee that they are not toxic.

Of course it is harmful and can cause cancer.

Long-term exposure can cause sore eyes, sore throat. What's more terrible is that styrene is chronic toxicity, and the harm to human blood and internal organs is chronic, affecting the male reproductive system, and the most serious consequences will lead to leukemia and cancer. Therefore, it is necessary to pay attention to protection.

Glad to answer useful questions for you.

Polyethylene is non-toxic. Polyethylene is a white waxy translucent material, flexible and tough, lighter than water, non-toxic, and has superior dielectric properties. It is flammable and continues to burn after leaving the fire. The water permeability is low, and the permeability to organic steam is larger.

The transparency of polyethylene decreases with the increase of crystallinity, and the transparency increases with the increase of molecular weight at a certain degree of crystallinity. The melting point of high-density polyethylene is 132-135, and the melting point of low-density polyethylene is lower (112) and has a wide range. It is insoluble in any known solvent at room temperature, and can be dissolved in a small amount in solvents such as toluene, amyl acetate, trichloroethylene and more than 70.

Polyethylene plastic material properties:

Excellent corrosion resistance, electrical insulation (especially high-frequency insulation), can be chlorinated and irradiated modified, can be reinforced with glass fiber The melting point, rigidity, hardness and strength of low-pressure polyethylene are high, the water absorption is small, and it has good electrical properties and radiation resistance; The flexibility, elongation, impact strength and permeability of high-pressure polyethylene are better;

Ultra-high molecular weight polyethylene has high impact strength, fatigue resistance and wear resistance Low-pressure polyethylene is suitable for making corrosion-resistant parts and insulating parts; High-pressure polyethylene is suitable for making films, etc.; Ultra-high molecular weight polyethylene is suitable for making shock-absorbing, wear-resistant and transmission parts.

Polyethylene plastic itself is non-toxic and harmless to humans. Polyethylene is one of the five major synthetic resins, and it is the variety with the largest production capacity and the largest import volume of synthetic resins in China. Polyethylene is mainly divided into three categories: linear low-density polyethylene, low-density polyethylene, and high-density polyethylene.

Applications of polyethylene:

1. It can be used to make insulating materials.

Polyethylene has very stable physical properties, good insulation performance, and is a poor conductor of electricity, so it can be applied to the insulating material part of power engineering, including capacitive equipment, transformers, etc., such as high-frequency insulating structural parts, Y-class electrical insulation products.

2. It can be used as an anti-corrosion material.

Polyethylene not only has stable physical properties, but also stable chemical properties, good corrosion resistance, and has been widely used in the anti-corrosion of parts and equipment.

3. It can be used for the production of packaging materials.

Polyethylene has very strong stress, good tear resistance, and strong hydrophobicity, which determines that polyethylene can be used in packaging materials, is an important part of plastic packaging materials, mainly used in agricultural fields, such as seedling film, vegetable greenhouse film, various packaging films and plastic film covers for publications. <>

Summary. Dear <>, happy to answer for you. Is polyethylene toxic:

No poison. Polyethylene is odorless, non-toxic, has excellent low temperature resistance, the minimum use temperature can reach -70 -100, and has good chemical stability, so it is harmless to the human body. Polyethylene is not harmful to people, but it is extremely harmful to the human body after heating or incineration high temperature treatment, such as the main component of disposable fast food box plastic bags is polyethylene, after reaching a certain temperature, small particles of polyethylene will enter the body, and it is easy to get kidney stones and other diseases in the long run, and serious will be poisoned and even carcinogenic.

Is polyethylene toxic:

Dear <>, happy to answer for you. Is polyethylene toxic: It is not toxic.

Polyethylene is odorless, non-toxic, has excellent low temperature resistance, the minimum use temperature can reach -70 -100, and has good chemical stability, so it is harmless to the human body. Polyethylene is not harmful to people, but it is extremely harmful to the human body after heating or incineration high temperature treatment, such as the main component of disposable fast food box plastic bags is polyethylene, after reaching a certain temperature, small particles of polyethylene will enter the body, and it is easy to get kidney stones and other diseases in the long run, and serious will be poisoned and even carcinogenic.

Pro<> "Polyethylene is heated, and it can be converted into a liquid when heated to a certain extent, and can be formed into a solid again after cooling. Reheating polyethylene can form a flowing liquid again, indicating that polyethylene has good thermoplasticity and can be recycled and reused.