How is formaldehyde produced? Why is there formaldehyde in the house?

The main reason for the release of formaldehyde inside the house, it is because:Man-made panels, such as eco-boards, woodworking boards, MDF, multi-layer boards, particleboards, particle boards and non-solid wood flooring, are all man-made panels。Therefore, when choosing materials for decoration, we must consider its environmental protection. Personally, it is recommended that the decoration materials should be as natural as possible, and the most suitable solid wood planks should be.

Formaldehyde has many uses in industry, and the boards, paints, carpets, wallpapers, etc. commonly used in interior decoration contain and release formaldehyde. Incomplete combustion of fuel and tobacco leaves also releases formaldehyde.

In medicine, formaldehyde is also commonly used as a preservative and disinfectant. The main ways of human exposure to formaldehyde are respiratory inhalation, oral ingestion, and exposure.

Symptoms of formaldehyde poisoning

Formaldehyde poisoning can cause tearing eyes, conjunctival congestion and inflammation, allergies, nasopharyngeal discomfort, cough, acute and chronic bronchitis and other respiratory diseases, and can also cause nausea, vomiting, gastrointestinal disorders.

Acute poisoning is caused by exposure to high concentrations of formaldehyde vapors and is mainly harmful to the eyes and respiratory system. It manifests as blurred vision, persistent headache, cough, hoarseness, chest pain, dyspnea and other symptoms, and even life-threatening due to coma, blood pressure drop, and shock.

Formaldehyde comes from the panels and furniture used in the decoration of the house. Nowadays, many people use black tea to remove formaldehyde, but in fact, the effect of black tea in removing formaldehyde is very small. Recommend several effective ways to remove formaldehyde:

1. Or more ventilation is generally after 10 o'clock in the morning, divided into morning, noon and evening ventilation for 20 minutes each. The heating will not freeze for 20 minutes at a time. 2. You can buy some adsorption materials such as activated carbon and nano live ore.

3. Put a few more pots of vinegar water indoors, formaldehyde is soluble in water. 4. Placing orange peels, lemon peels and other items in the room is also a very effective way to remove the smell, but their effect will not be very fast.

Formaldehyde in the renovated house is mainly because many decoration materials contain formaldehyde.

The following are the 6 materials with the most formaldehyde content in decoration:

plates

Furniture and other commonly used boards include solid wood, solid wood particle board, ecological board, MDF, woodworking board, etc. Regardless of the type of board, glue is used in the manufacturing process, so the formation of the board releases free formaldehyde. Among them, solid wood made of logs has low formaldehyde content and high environmental protection, but it is also very expensive.

Solid wood particle board and other edge banding processes can lock in free formaldehyde, and it is also very safe, and most furniture brands currently use this material. A large amount of formaldehyde glue is used in the production and processing of man-made panels without edge banding, and the amount of formaldehyde released is very high.

Paint vs wallpaper

Coatings: The organic solvent containing formaldehyde is formaldehyde, although there is now an "anti-formaldehyde coating", but in fact, it will still contain formaldehyde.

Wallpaper: Mainly affected by the glue used to paste wallpaper, it will produce a large amount of formaldehyde release. As for cheap PVC wallpaper, it is not very environmentally friendly, because there may be TVOC containing volatile organic compounds.

Upholstered furniture

Fabrics, the frame inside the leather furniture may be MDF, plywood and other wood-based panels, these boards contain formaldehyde, if not careful, can also cause formaldehyde pollution.

Paint

Paint is used in cabinets, wardrobes, and other wooden furniture. Paint is the main source of formaldehyde released from these furniture. Therefore, after renovation, it is necessary to open the windows for more ventilation.

Flooring adhesives

The adhesives used in the processing of flooring, such as trialdehyde glue, are formaldehyde.

Glass glue

Glass glue is a very important accessory in decoration, such as glass doors and windows, bathroom cabinets, countertops, comprehensive ceilings and other decorations basically need to be used, which is also a large formaldehyde.

The volatilization cycle of formaldehyde in basic decorative materials such as walls, wallpapers, curtains and carpets is about one year. The formaldehyde content in these items is generally not high, the volatilization cycle is short and not long, and it is relatively easy to handle. However, the volatilization cycle of formaldehyde in furniture can last from three to fifteen years.

High temperatures in summer and winter, high indoor temperatures will peak formaldehyde emissions, which are 20%-30% higher than usual. So. If you don't have bad money, it's best to buy solid wood furniture and don't worry about excessive formaldehyde.

Decoration, including the choice of decoration materials, will affect the concentration of indoor formaldehyde after decoration. Therefore, after decoration, it is necessary to do a good job of formaldehyde removal.

Formaldehyde in indoor air is derived from:1. For man-made boards such as plywood, blockboard, medium-density fiberboard and particleboard used for interior decoration, because the adhesive used in the current production of decorative boards is mainly urea-formaldehyde resin, the residual formaldehyde in the board and the formaldehyde that does not participate in the reaction will be gradually released to the surrounding environment, which is the main body of formaldehyde in the indoor air.

2 In order to pursue high profits, some manufacturers use unsuitable boards and use inferior glue when bonding veneer materials, and as a result, customers buy them home, which is equivalent to buying back a small exhaust emission station. .

3 Other types of decorative materials that contain formaldehyde and may be emitted to the outside world, such as wall covering, wallpaper, chemical fiber carpet, foam, paints and coatings, etc. .4 Some materials that emit formaldehyde after combustion, such as cigarettes and some organic materials.

Formaldehyde generally exists in wood, wood core board adhesives, and some paints also have it, as for whether formaldehyde exceeds the standard, you can only find a local testing agency to rely on professional instruments to monitor, or buy a formaldehyde test box online to test it yourself. If the content does not exceed the national standard, then in addition to ventilation you have to buy some charcoal, quicklime and other adsorption materials to prevent in the furniture, if it exceeds the calibration, then you have to take certain measures to get some nano live ore, with the herb Dialin, the treatment of formaldehyde will be better. Therefore, everyone should pay attention to the purchase of materials when decorating.

Formaldehyde is a direct decoration material. First of all, we should make it clear that formaldehyde is not a material directly used for decoration, but a coating and adhesive. Why formaldehyde is released in the glue and why this glue is used, many people still don't quite understand.

To put it simply, in wood processing, glue is used for bonding, and this glue, in the later aging process, will continuously release formaldehyde. This is the direct route of formaldehyde.

We all know that the harm of formaldehyde to the body is immeasurable, and when it comes to the pollution source with high formaldehyde content, the first thing that comes to mind is furniture and wall latex paint, but in fact, other items in the home will also become a hidden danger of air pollution in the future.

Let's take a look at what things will release formaldehyde during the renovation process, right?

It is used for interior decoration of plywood, blockboard, MDF and other man-made boards. The adhesive used in the production of wood-based panels contains a lot of formaldehyde, and the residual and non-reactive formaldehyde in the board will be gradually released to the surrounding environment, which is the main body of formaldehyde in the indoor air.

Furniture made of wood-based panels. In order to pursue profits, some manufacturers use substandard boards, or use inferior glue when bonding veneer materials, and the formaldehyde in the boards and glues seriously exceeds the standard.

Other types of decorative materials that contain formaldehyde and may be emitted to the outside world, such as wall coverings, wallpaper, chemical fiber carpets, paints and coatings, etc.

Therefore, when you are decorating, in addition to paying attention to the formaldehyde content of furniture and latex paint, you also need to pay attention to the formaldehyde contained in other items, and you must ensure good ventilation after decoration, and do not move in immediately. However, if the indoor formaldehyde concentration at home is too high or even exceeded, it is necessary to find a professional company to do formaldehyde removal treatment, so as to ensure the air quality in the home environment.

There is formaldehyde in the renovated room, mainly because the decoration materials contain a large amount of formaldehyde, and the production of formaldehyde is basically chemical agents, such as various glues and synthetic materials!

Because there are many kinds of decorative materials, it is not that the material itself contains formaldehyde (because formaldehyde itself is gaseous), but because the material contains formaldehyde made of various resin binders (urea resin).

Most of the furniture is glued together, and the paint of the furniture brush and the paint painted during decoration will have formaldehyde, so the formaldehyde content of the newly renovated house will be high.

Answer, because when decorating the house, you have to buy wall materials, furniture materials, and furniture, which contain formaldehyde, which is produced by the synthesis of various raw materials.

Why is there formaldehyde in the renovated house, and how is formaldehyde produced? For example, the paint or wallpaper used in the room will produce formaldehyde.

Why is there formaldehyde in the house after renovation? How is formaldehyde produced? Tell you that formaldehyde is generally produced by industrial synthetic glue.

Some furniture panels are made of smart wood, which is glued together by adhesives and then pressed into panels, which contain formaldehyde. After decoration, the formaldehyde in these boards will be slowly released. In addition, the lacquer used on the surface of some furniture also contains formaldehyde.

Why is there formaldehyde in a renovated house? How is formaldehyde produced? Formaldehyde is produced due to chemical materials, and some materials used in the renovated house will have this chemical component, so formaldehyde will be produced.

In the factory production, a large number of chemical raw materials such as glue will be used, so the materials contain a large amount of formaldehyde, etc., and the materials used to decorate the house will inevitably produce formaldehyde.

Why is there formaldehyde in a renovated house? How is formaldehyde produced? Formaldehyde is a pollutant in the production of some building materials, so there is a lot of formaldehyde in your house.

Man-made panels are made by bonding shredded wood and fibers and pressing them at high temperatures. Because the adhesive used for bonding contains formaldehyde, the man-made panels also carry formaldehyde residues. Man-made panels are the basic materials used in decoration, and not only that, but they can also be made into flooring and furniture.

The large use of man-made panels in home decoration is destined to become the main source of indoor environmental pollution, and the formaldehyde deposited on the man-made panels will be slowly released indoors, causing indoor environmental pollution.

After decoration, the formaldehyde in the house is brought from the decoration materials, because if the decoration materials leave the formaldehyde, the paint brush on the wall will flow down like water, the tiles will fall off, and the woodworking board will crack, so the more luxurious the decoration, the more materials will be used, and the more formaldehyde will be used at home, please adopt it.

Well, most of the newly renovated houses should have formaldehyde, mainly caused by unqualified materials, and formaldehyde is very harmful to the body.

Because formaldehyde is produced by chemical agents, toxic gases,

Floor leather, plastic veneer, plywood, latex paint, synthetic fibers, adhesives, etc., commonly used in building materials such as interior decoration and decoration will release formaldehyde. Newly renovated hotels, guest rooms, and family rooms, due to the use of the above-mentioned decoration materials, cause more formaldehyde pollution.

According to research reports, the formaldehyde concentration in the air in the decorated room is significantly higher than that in the undecorated room, and the indoor formaldehyde concentration in the newly renovated room increases significantly within half a month. In addition, in addition to building materials, indoor formaldehyde is also used in coatings, plastic plates, thermal insulation and other decorative materials, as well as furniture, chemical fiber carpets may emit formaldehyde.

First of all, the panels used in panel furniture or custom furniture mainly include particleboard, MDF, plywood and other man-made panels. The process of manufacturing this kind of board is simply to process the wood into sawdust, and then add adhesives, and through high-temperature extrusion, the wood chips are processed into boards.

Formaldehyde exists in the adhesive, because formaldehyde has strong adhesion, can strengthen the hardness of the board, anti-insect, anti-corrosion, and cheap, so it is the main component of urea-formaldehyde resin is the raw material of various man-made plates.