What does epoxy plastic resin come from? Is it toxic to the human body?

I only know epoxy. Can be used as a PCB board.

It is a kind of polymer material, which is mostly used as a binder, and is non-toxic after curing.

At present, the vast majority of epoxy resin coatings are solvent-based coatings, which contain a large number of volatile organic compounds (VOCs), which are toxic and flammable, thus causing harm to the environment and the human body.

VOC is the English abbreviation for volatile organic compounds. When the VOC concentration in the environment exceeds a certain level, people will feel headache, nausea, vomiting, and weakness in the limbs for a short period of time. If you do not leave the scene in time, you will feel that the above symptoms will be aggravated, and in severe cases, you will have convulsions, coma, and memory loss.

VOCs harm people's liver, kidneys, brain, and nervous system, and can even cause blood problems in the human body, and other serious diseases such as leukemia.

Epoxy resin itself is non-toxic, but epoxy curing agent is toxic. Such as MDA, TDI is toxic and is a carcinogen. The deadliest are:

These carcinogens remain in epoxy flooring. These epoxy resin curing agents are definitely harmful to the human body, and they are also fatal, so it is important to stay away from epoxy resin floors. This is the fundamental reason why Americans resolutely do not make epoxy resin flooring and polyurethane flooring.

However, the good news is that it can now be used as a Nalut concrete sealing curing agent floor, which is non-toxic and harmless, low-carbon, energy-saving and environmentally friendly. Nelut concrete sealant curing agent and silk concrete sealing curing agent are ideal for commercial and industrial flooring using ultra-nanotechnology.

Epoxy resin itself is not harmful to people's bodies, harmful to the human body is epoxy resin in the manufacturing process to add solvents or other things may bring harm to people's bodies, the domestic epoxy resin industry is through water-based modification, avoid addition and other ways, to maintain the epoxy resin "non-toxic" nature.

Commonly used additives in epoxy resins are the following categories: curing agents, modifiers, fillers, diluents, etc.

1.Epoxy floor paint is a petrochemical product, which is more or less toxic.

2.Epoxy floor paint solvents are harmful to human health, such as xylene, Tianna water, and the VOC content of these substances is high, which is one of the main culprits of haze weather.

3.The curing agent of epoxy floor paint that is not well handled and unqualified is toxic and harmful to the human body.

4.The pigment of epoxy floor paint that is not well handled and unqualified is a heavy metal element and is harmful to the human body.

Harmful causes: resin we are most familiar with resin spectacle lens, its benefits are relatively light, high wear resistance, resin is non-toxic, so resin spectacle lenses are not any toxicity, but epoxy resin does have a certain degree of harm, this is because epoxy resin is added to some toxic substances, these toxic substances are generally volatile and flammable, and have certain harm to the body. It is flammable, thus causing harm to the environment and the human body. Therefore, we must be cautious when using epoxy resin products to avoid causing harm to the human body.

Are epoxy resins toxic? Is it harmful to people?

Epoxy resin and epoxy resin adhesive itself is non-toxic, but due to the addition of solvents and other toxic substances in the preparation process, many epoxy resins are "toxic", and the domestic epoxy resin industry is maintaining the "non-toxic" nature of epoxy resin through water-based modification and avoiding additives. Epoxy resin is a general term for a class of polymers that contain more than two epoxy groups in the molecule. It is a polycondensation product of epichlorohydrin with bisphenol A or polyols.

Due to the chemical activity of the epoxy group, it can be used to open the ring with a variety of compounds containing active hydrogen, solidify and cross-link to form a network structure, so it is a thermosetting resin. Bisphenol A epoxy resin not only has the largest output and the most complete variety, but also the new modified varieties are still increasing, and the quality is constantly improving. Additional Information:

1. Material characteristics: Epoxy resin has a secondary hydroxyl group and an epoxy group, and the secondary hydroxyl group can react with isocyanate. Epoxy resin is directly added to the hydroxyl group of polyurethane adhesive as a polyol, and only the hydroxyl group participates in the reaction using this method, and the epoxy group fails to react. The epoxy is opened with an acidic resin and a carboxyl group, and then reacts with the isocyanate in the polyurethane adhesive.

Epoxy resin can also be dissolved in ethyl acetate, phosphoric acid is added to the heating reaction, and its adduct is added to the polyurethane adhesive; the initial adhesion of the glue; Heat resistance and hydrolytic stability can be improved, and alcohol amines or amines can be reacted to form polyols, and the presence of tertiary nitrogen atoms in the adducts can accelerate the NCO reaction.

2. Classification 1, according to its main components, it is divided into pure epoxy resin adhesive and modified epoxy resin adhesive. 2. According to its professional use, it is divided into epoxy resin adhesive for machinery, epoxy resin adhesive for construction, epoxy resin adhesive for electronics, epoxy resin adhesive for repair, traffic adhesive, marine adhesive, etc. 3. According to its construction conditions, it can be divided into room temperature curing glue, low temperature curing glue and other curing glue.

4. According to its packaging form, it can be divided into one-component glue, two-component glue and multi-component glue. There are other divisions, such as solvent-free adhesives, solvent-based adhesives and water-based adhesives. However, it is widely used in the classification of components.

Hope it helps.