Are the main components of resin and vitrified brazing harmful to human health?

I'm doing an experiment with resin composite materials, resin is toxic, glass fiber is not good for the lungs if inhaled into the respiratory tract, glass fiber is not degradable.

Epoxy resin adhesive is non-physiological, harmless to the human body, and can be formulated with low odor and non-toxic environmentally friendly adhesive. The toughness is not good, the brittleness is large, and the toughness modification is usually required.

Epoxy resin adhesive generally refers to the adhesive made with epoxy resin as the main body, and epoxy resin adhesive should generally also include epoxy resin curing agent, otherwise the glue will not cure.

All chemicals have a certain toxicity, as epoxy resin glue, to be precise, it is harmful to the human body, especially indoor long-term can cause diseases.

Epoxy resin has low toxicity before curing, harmful to the human body, and non-toxic and environmentally friendly after curing.

Epoxy adhesive comes in two combinations, among them:

Epoxy resin is low toxicity.

There are two kinds of curing agents: highly toxic and low-toxic.

But if after contacting **, rinse with water in time for about 15 minutes, it doesn't matter.

If you eat it, of course, it is harmful.

The water filtered through the resin filter is harmless to the human body.

Resin Filter Element: Resin is a porous, insoluble exchange material. The resin filter of the water softener contains millions of tiny resin balls (beads), all of which contain many negative charge exchange sites that absorb positive ions.

When the resin is in its nascent state, these charge exchange sites are occupied by positively charged sodium ions. When calcium and magnesium pass through the resin tank, they come into contact with the resin beads and displace sodium ions at the exchange site.

The resin preferentially binds to strongly charged cations, and the charges of calcium and magnesium ions are stronger than those of sodium ions. Instead of sodium cations, it goes down through the resin "bed" and water softener, which provides "soft" water.

The 10-inch filter element is generally soaked in salt water when used in the purified water system, and then replaced after the softened water effect is not good. In order to prolong the service life, users are generally soaked in saturated salt water, and must be rinsed after soaking, otherwise drinking or using high salt water is not good for the body or equipment. Therefore, this is also the reason why many small equipment is quite effective at the beginning, but the effluent quality in the later stage is obviously not as effective as when it was first used.

Compared with domestic companies, foreign companies should be more demanding and rigorous in the selection of resins for this kind of equipment, and in addition to strictly controlling chemical leachables for resins, they will also propose higher exchange capacity to maximize the demand for periodic water production. Personally, I recommend that you go directly to the dealer who sold your equipment to replace the filter cartridge, and if it is a drinking water purification system, it must be a food-grade positive resin that meets drinking water standards. At present, many domestic water purifier manufacturers blindly control costs and ignore the health of end users in the selection of resins.

I would like to call on the user to be self-respecting.

It doesn't matter, there are fewer heavy ions in tap water now, and absorbing a little more sodium has no effect on the human body.

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.

Epoxy resin is not harmful to the body. Epoxy resins and epoxy adhesives are non-toxic by themselves, but due to the addition of solvents and other toxic substances during the preparation process, these can cause harm to the human body.

Among them, curing agent is an indispensable additive, whether it is used as a binder, coating, or castable, it is necessary to add a curing agent, otherwise epoxy resin cannot be cured. Due to the different application performance requirements, there are also different requirements for epoxy resins and additives such as curing agents, modifiers, fillers, and diluents.

The polluted environment mentioned above mainly refers to the larger environment, in fact, people often ignore the importance of the small environment of the living room. The time spent indoors in a human life far exceeds the time spent outdoors, and the pollution of the living environment has greatly exceeded the pollution of the larger environment.

According to relevant data, indoor pollution indicators are much higher than outdoor control points, such as indoor total suspended particulate matter (TSP) is twice that of outdoor and much higher than the maximum allowable concentration in residential areas. For coal-burning households, the average daily indoor SO concentration was 7 511 times the allowable concentration; indoor NO, the concentration is 21 times the allowable concentration; The average daily concentration of indoor CO is 4 8 times the allowable concentration. The improvement of the energy structure of the kitchen, opening more windows, and setting up exhaust ventilation devices are important conditions for improving the indoor environment.

At present, home decoration is becoming more and more upscale and more and more exquisite, but the pollution it brings is also increasing. At present, the construction and decoration materials that are the most harmful to health mainly come from three aspects: 1

radon contained in cement, sand and gravel, radioactive substances contained in slag bricks; 2.formaldehyde in decorative materials and paints; 3.Formaldehyde released from furniture and benzene pollution caused by cloth sofa spraying.

Some people believe that decoration materials contain more than 300 kinds of volatile organic compounds, of which the most common and harmful are formaldehyde, VOC (benzene and homologues), ammonia, radon, radioactive substances, etc. Long-term exposure to high levels of radon and other radiation can lead to lung cancer, leukemia and respiratory diseases. The initial reaction of the human body to formaldehyde is vomiting, diarrhea, tearing, and tiredness.

When formaldehyde concentrations reach milligrams3, wheezing occurs in children. Formaldehyde also has a carcinogenic effect, for example, a hospital in Beijing found that most of the children had been decorated in the home of the child in the past six months, and most of them were luxuriously decorated, of which the formaldehyde content was very high.