How is indoor formaldehyde transmitted??

The transmission route of indoor formaldehyde is generally through air and contact.

How is indoor formaldehyde transmitted?? Is there still a way to transmit formaldehyde indoors? It's just that some furniture and decoration materials release formaldehyde contained in it!

There are three main ways in which formaldehyde spreads in indoor air.

First of all, man-made boards such as plywood, particleboard, and fiberboard are used for interior decoration. Because formaldehyde has strong adhesion, and also has the function of strengthening the hardness of the board and the function of insect prevention and anti-corrosion, the glue used in the production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component, and the residual and uninvolved formaldehyde in the board will be gradually released to the surrounding environment, which is the main body of formaldehyde in the indoor air.

Secondly, furniture made of wood-based panels. This is because a large number of resin binders are used in the processing of man-made panels, and formaldehyde will be released in every link of the large number of adhesives, and the process of releasing formaldehyde from urea-formaldehyde resin, phenolic resin, melamine formaldehyde resin, etc. is a continuous process, and the release amount will change with the change of seasons and climate, which will affect the indoor environment for a long time.

Third, other types of decorative materials such as wallpaper, chemical fiber carpets, foam plastics, paints, coatings, etc., also contain formaldehyde and may be emitted to the outside world.

The wood itself emits very small amounts of formaldehyde under the action of temperature and humidity.

In the process of making glue, urea-formaldehyde resin inevitably retains a part of free formaldehyde and emits it outward.

During the curing process of wood-based panels, a part of the linear resin does not form a network structure and decomposes into free formaldehyde and emits it to the outside world.

Partially cured incompletely resin decomposes under the action of heat and moisture to form free formaldehyde, which is emitted outward.

There are actually many ways to transmit formaldehyde indoors, and the most important one is to spread through odor, so this is a very difficult problem to solve.

The most important way of transmission of formaldehyde indoors is airborne. Because we use furniture, sofas, floors, etc., the formaldehyde is slowly released to the outside, and these formaldehyde are carried in the air like other places.

Indoor formaldehyde is generally contained in decoration materials, and they are directly diffused into the air and flow with the air.

Formaldehyde in the room is transmitted through the convection of the air, which can be emitted indoors, and then gradually let the air pollution spread.

Indoor formaldehydeIndoor formaldehyde transmission route indoor formaldehyde transmission routeIndoor formaldehyde transmission route, it is transmitted by air.

1.Man-made panels such as plywood, particleboard, and fiberboard used for interior decoration. Because formaldehyde has strong adhesion, and also has the function of strengthening the hardness of the board, insect resistance and anti-corrosion, the glue used in the production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component, and the formaldehyde remaining in the plate and not participating in the reaction will be gradually.

2.Furniture made of wood-based panels. This is because a large number of resin-based binders are used in the processing of man-made panels, and formaldehyde will be released in every link of the large number of binders, and urea-formaldehyde resin.

3.Other types of decorative materials such as wallpaper, chemical fiber carpets, foam plastics, paints, coatings, etc., also contain formaldehyde and may be exposed to the outside world.

Oyster sauce lettuce is especially common in restaurants and street restaurants, and is generally made with lettuce and oyster sauce as the main ingredients, first blanched and then poured with a carefully prepared sauce. Due to the very high water content of lettuce and the fact that the lettuce fully absorbs the flavor of the oyster juice during the cooking process, the finished oyster sauce lettuce tastes nutritious, tender, delicious, fresh and smooth.

The transmission route of formaldehyde in this indoor area is, of course, airborne transmission. In other words, it is transmitted by air flow, and if it is hot in the house, then the formaldehyde release is also a transmission route.

One of the transmission routes of indoor formaldehyde is the decoration material of the ship. The other is the spread of external factors.

People often close doors and windows, indoor and outdoor air can not circulate, not only the content of formaldehyde in indoor air will increase, radon will also continue to accumulate, and even reach a high concentration.

Why is it that all the ways to make money are generally some furniture? There are some stucco machines on the walls, which spread.

In particular, there are pictures, printing, ink, voices, etc., all of which are called Si Rui, and the group of fake money is also broadcast.

The transmission route of indoor formaldehyde, only infectious diseases will have a transmission route, formaldehyde only releases, there is no transmission route, open the window and door convection will be ventilated and breathable, and formaldehyde will volatilize.

There are three main ways for formaldehyde to spread in indoor air First, used as plywood, particleboard, fiberboard and other man-made boards for interior decoration, because formaldehyde has strong adhesion, and also has the function of strengthening the hardness of the board and anti-insect and anti-corrosion, so the glue used in the current production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component, which is residual in the board.

Hello! The transmission of indoor formaldehyde is mainly airborne, and the first of formaldehyde is mainly home, and there is a place where glue is used when decorating.

Man-made panels such as plywood, particleboard, and fiberboard used for interior decoration. Because formaldehyde has strong adhesion, and also has the function of strengthening the hardness of the board and the function of insect prevention and anti-corrosion, the glue used in the production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component, and the residual and uninvolved formaldehyde in the board will be gradually released to the surrounding environment, which is the main body of formaldehyde in the indoor air.

The transmission route of indoor formaldehyde is in indoor home decoration or, in indoor home decoration or furniture placement, when making furniture, they use glue containing formaldehyde and various materials to decorate the game, after decoration, they will release formaldehyde, and extend the interior.

In fact, we have a wrong understanding of indoor formaldehyde pollution, and the environmental protection of decoration materials does not mean that it is still environmentally friendly when gathered together.

The interior itself is with a large part of formaldehyde pollution, when the house is built, most of the building materials are containing formaldehyde, and when the decoration is decorated, a large amount of formaldehyde pollution is introduced, which is difficult to avoid. The amount of formaldehyde released by decorations, daily necessities, etc. is also not small, and even books and other supplies are also polluted with formaldehyde.

The largest formaldehyde** is actually derived from glue, the main raw materials of glue are polyenenol, water, formaldehyde, etc., and glue is a large number of things used in building materials and decoration.

As we all know, formaldehyde is water-soluble, and in home life, it can be dissolved in all humid environments and water, formaldehyde, which is the trend of formaldehyde.

Indoor formaldehyde is transmitted through formaldehyde, which is what I think is the infection in the air and the infection in the gas.

Indoor formaldehyde passes through the way he is transmitted through the air.

There are three main ways in which formaldehyde can be transmitted in indoor air.

The first is wood-based panels such as plywood, particleboard, and fiberboard for interior decoration. Because formaldehyde has strong adhesion and has the function of enhancing the hardness, insect resistance and anti-corrosion of the board, the glue used in the production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component, and the residual inactive formaldehyde in the board will be gradually released into the surrounding environment, which is the main body of formaldehyde in the indoor air.

Secondly, the furniture is made of wood-based panels. This is due to the large amount of resin binders used in the processing of wood-based panels. Formaldehyde is released at every stage where adhesives are used in large quantities.

In addition, the process of formaldehyde release from urea-formaldehyde resins, phenolic resins and melamine formaldehyde resins is a continuous process, and the amount of release will change with the change of seasons and climate, which will have long-term effects on the indoor environment.

Third, other kinds of decorative materials, such as wallpaper, chemical fiber carpets, styrofoam, paints, paints, etc., also contain formaldehyde, which may be emitted to the outside world.

Formaldehyde is a widespread air pollutant.

Formaldehyde in the air outside the room is mainly used in the combustion of oil, coal, natural gas and other fuels, the oxidative decomposition of lubricating oil, automobile emissions, and atmospheric photochemical reactions. In addition, some factories that produce formaldehyde, urea-formaldehyde resins, chemical fibers, dyes, rubber products, plastics, inks, paints, coatings, etc., will also release a large amount of formaldehyde. Burning 1,000 gallons of Lunga oil produces formaldehyde.

70mg of formaldehyde per kilogram of vehicle exhaust. Burning 1 ton of coal can produce formaldehyde. Each kilogram of coal flue gas contains 6 mg of formaldehyde.

Formaldehyde in indoor air is mainly used in building decoration materials, furniture, various adhesives, coatings, synthetic textiles and so on. With the development of the economy and the improvement of people's living standards, various raw materials made of building decoration materials have entered the family. The chemical formaldehyde is recognized as a representative cause of indoor air pollution.

Building decoration materials that cause formaldehyde pollution and other causes are:

1. Decoration materials and new modular furniture are the main causes of formaldehyde pollution. The adhesives of plywood, large core board, MDF and particleboard (shredded board) in decoration materials and furniture are released when they are heated and deliquescent, which is the main source of formaldehyde release in the room.

2. UF foam is used as an insulating material for heat and cold protection of the house. Under the action of light and heat, the foam ages, releasing formaldehyde.

3. Use formaldehyde as preservative coatings, chemical fiber carpets, cosmetics and other products.

4. Indoor smoking. Each cigarette contains 20-88ug of formaldehyde and has a carcinogenic synergistic effect.

Formaldehyde emission pathways:

1. The wood itself emits a very small amount of formaldehyde under the action of temperature and humidity.

2. Urea-formaldehyde resin inevitably leaves a part of free formaldehyde in the process of glue making and emits it to the outside world.

3. During the curing process of wood-based panels, a part of the linear resin does not form a network structure and decomposes into free formaldehyde and emits it to the outside world.

4. Part of the incompletely cured resin decomposes under the action of heat and moisture to form free formaldehyde and emit it outward.

5. In the process of use, the interior building decoration materials will be extended with the temperature, relative humidity and use time. Continuously emit formaldehyde to the outside world.