I just finished installing my new house. What do friends recommend besides formaldehyde?

Is formaldehyde scavenger useful? Is formaldehyde scavenger effective? Which formaldehyde scavenger works well? The frequent occurrence of these problems shows that consumers are paying more and more attention to indoor formaldehyde pollution, but it also reflects consumers' confusion about removing indoor formaldehyde pollution. As consumers, our first concern is whether the formaldehyde scavenger I bought can effectively remove formaldehyde for a long time.

1. What caused the long-term existence of indoor formaldehyde pollution? Important knowledge-long-term release of formaldehyde

When you open a website in in addition to formaldehyde or selling formaldehyde scavengers, you will see photos sprayed on walls and furniture. Indoor formaldehyde pollution seems to be removed in this way. This may be the same feeling as everyone else.

Formaldehyde is the main component of all kinds of adhesives commonly found in building materials, decoration, decoration and furniture. The "free formaldehyde" in the adhesive volatilizes into the air with the increase of temperature, forming formaldehyde pollution in the indoor air. Wood-based panel, furniture, wall paint, curtain, mattress, floor, etc. Everything we decorate contains formaldehyde. In the new house, it can be said that formaldehyde is almost everywhere in the form of various compounds.

(1) However, it does not mean that as long as formaldehyde is used as raw material, it will definitely cause formaldehyde pollution. It is necessary for formaldehyde to decompose from the composition and become free formaldehyde.

For example, imitation porcelain tableware, that is, imitation porcelain bowls and plates popular for a period of time in previous years, is made of melamine resin as the main material, and formaldehyde is one of the main components of melamine resin. But as long as it is not immersed in strong acid, melamine resin will not degrade and formaldehyde will not be released freely. In other words, strong acid is a necessary condition for formaldehyde to release freely and pollute the air.

Therefore, the normal use of imitation porcelain bowls in daily life will not be harmed by formaldehyde.

(2) Not all formaldehyde in adhesives will be released continuously for a long time.

Formaldehyde is the basic raw material additive of many adhesives. When these adhesives are added to textiles, wall paints, etc. , there will be unreacted free formaldehyde, causing air pollution. However, the formaldehyde release period in these materials is generally short, and most of them will not exceed half a year.

Therefore, the formaldehyde pollution caused by these materials can be solved by keeping the windows ventilated and not rushing to stay.

(3) Urea-formaldehyde resin glue in wood-based panels is the cause of long-term indoor air pollution caused by formaldehyde.

Urea-formaldehyde resin adhesive is a kind of adhesive with formaldehyde and urea as the main raw materials, which is mainly used to manufacture wood-based panels. More than 90% of wood-based panels in China are made of urea-formaldehyde resin glue.

Urea-formaldehyde resin adhesive has a characteristic that it decomposes when wet (water). That is to say, formaldehyde is decomposed into free formaldehyde after being wetted, which is released into the air from wood-based panels with the increase of temperature (generally above 20 degrees), causing indoor pollution.

And this process of decomposition and air pollution can last 10 years (the Japanese study their plates for 3 ~ 15 years). This is really the most terrible.

(4) The sealing method can prevent moisture and seal at the same time to prevent free formaldehyde from being released into the air.

As far as China's present situation is concerned, there are only two ways to go:

1. Paint the surface of man-made board in strict accordance with the technological requirements. That is to say, according to the process requirements, the primer and topcoat should be painted more than twice, and polished after each painting to ensure the compactness of the paint film. The outer surface of solid wood paint furniture is made according to such requirements, and the inner surface is hard to say. Because after all, the cost is too high.

Second, melamine and other high-quality decorative materials. After the board is finished with qualified finishing materials, the internal base material is not easy to be affected with damp, and the free formaldehyde will be effectively closed.

(5) The source of long-term indoor formaldehyde pollution is that the paint has not been painted, or the paint has not been painted in strict accordance with the process requirements, or the artificial board made of unqualified skin-sticking materials has been used.

Relatively unimportant parts of furniture, such as furniture backboard, drawer bottom plate, etc. Usually artificial boards, such as plywood; The processing technology of these parts is simple, only once or twice, or not at all; Some are veneered, but the quality of the skin is poor, which can't stop the release of formaldehyde; So the man-made board in the drawer is one of the sources of long-term indoor formaldehyde pollution.

You don't need help, you can see it at a glance!

As consumers, our first concern is whether the formaldehyde scavenger I bought can effectively remove formaldehyde for a long time. At this time, we only need to do experiments with formaldehyde detection box (commonly known as formaldehyde self-test box) to get the answer.

This is the simplest and most effective detection method at present. The formaldehyde detection box is not only cheap and simple to operate, but also the semi-quantitative detection results are completely reliable. Before treatment, find the indoor formaldehyde pollution source and determine the treatment object. Moreover, the semi-quantitative formaldehyde detection box is especially suitable for comparison, suitable for comparison before and after treatment, and the results are clear at a glance. The only problem is: we must choose qualified products produced by regular manufacturers.

3.？ Is formaldehyde scavenger really useful?

There are many products on the market that claim to be formaldehyde scavengers, all of which are chemically reactive products. There are two main types: one is catalyst products; One is the polymerization product. The most famous catalyst product is "photocatalyst". Photocatalyst is photocatalyst, which is a chemical substance (catalyst) that can make formaldehyde react with oxygen under the irradiation of ultraviolet light. However, the houses in our country are all energy-saving and environment-friendly buildings. Simply put, glass is colored and can block ultraviolet rays. So there is almost no ultraviolet light source indoors. In this way, even if you buy a real "photocatalyst" product from the Internet, it is useless.

Catalyst products are not only photocatalysts, but also many kinds. The same feature is: "let oxygen react with formaldehyde to produce water and carbon dioxide." As long as it claims its function in this way, it is a catalyst product. Catalyst products have the same characteristics: short-term effectiveness and long-term ineffectiveness. Therefore, if the formaldehyde scavenger you bought is really effective after 3 or 5 days of use, and the effect rebounds after one week or 10, you can basically conclude that it is a catalyst product.

As ordinary consumers, we can't tell the effect of formaldehyde scavenger by naked eye observation and nose smell. The inferior formaldehyde scavenger exposed by CCTV focus interview in March 20 12 is actually made of "lime mixed with water". Under these circumstances, can consumers not have doubts? At present, online and offline products are all kinds, which can only be disinfected for a period of time and have a certain odor removal effect, but they cannot be used in in addition to formaldehyde for a long time. For example, as reported in Focus Interview, after 72 hours, the effect disappeared and the formaldehyde concentration rose back to before treatment. The so-called "formaldehyde scavenger", on the contrary, the sales volume greatly exceeds the truly effective formaldehyde scavenger products.

Mu Tong's powerful aldehyde remover poured into the beaker is colorless and transparent, which is not much different from water on the surface. Smell it closely, it has a very light taste.

Qimxy strong in addition to formaldehyde agent is coated on the surface of man-made board, and the effective components enter the wood fibers on the surface of the board with the help of water penetration. After the water evaporates, the effective components are evenly distributed in the surface of the wood fiber, and when the formaldehyde released from the urea-formaldehyde resin adhesive is encountered, it is captured and polymerized to form an irreversible, non-toxic and harmless polymer resin adhesive. In this way, the formaldehyde pollution of wood-based panels is fundamentally eliminated from the source, and no secondary pollution is produced. As long as there are active ingredients in wood-based panels, the polymerization reaction with formaldehyde will continue, thus achieving long-term and stable treatment effect.

Mu Tong Strong Formaldehyde Scavenger is the first formaldehyde scavenger for wood-based panels in China in 200 1. I want to know if you bought a formaldehyde scavenger for wood-based panels. In fact, it is very simple: just test the formaldehyde in the furniture before use (be careful not to use indoor formaldehyde), 7 days after use, 10 day, one month, etc. And then test the formaldehyde in the furniture again, you can know whether it is effective for a long time, and you can also judge whether it is a formaldehyde scavenger for wood-based panels.