Buying a house is a big event in life. Buying a new house is also a must for decoration. After the decoration, you are afraid of formaldehyde, benzene series, cyanide, halogenated hydrocarbons, heavy metals and other hazards. Frequently, the media reported that pregnant women suffered miscarriage and leukemia after renovation. Many people know that formaldehyde is the result of decoration, benzene series, etc., but formaldehyde, benzene series from which part of the decoration it?
I.1. Man-made boards (including composite furniture, doors, wooden floors, etc.) manufactured using artificial boards and carpentry construction 1. Link of artificial boards: Man-made boards are made of natural wood chips, wooden boards, shavings, etc. It is non-toxic, but why is it poisonous after it is made of sheet metal? We use plywood as an example. 12% plywood is usually made from 3-4 layers of natural wood glue. Each layer of double-sided glue is hot pressed and formed. The entire board requires about 3 kg of glue. If the glue used by the board maker contains toxic substances such as formaldehyde or cyanide, then the board it produces will be toxic. You will use these boards for furniture. These furniture are poisonous.
2, woodworking construction links: we buy back plywood, big core board, etc. to do furniture, but also use glue to paste a layer of panel, and paste a layer of panel about 0.8 kg of glue (usually a common home in the Plywood to With more than 20 kilograms of glue, if the glue you use for the veneer is toxic, then the furniture you make is poisonous. From the above analysis, it is known that the toxic substances such as formaldehyde, stupid material, and cyanide produced in the wood link are all caused by the use of a large amount of glue!
Second, putty putty link
When we went to visit the renovation project that was constructing the wall, we would first see the workers throwing limes on the putty, because the walls of the houses that the developers had handed were rough and uneven. They could not be painted directly. They must be put flat with a putty. If the putty is not well covered, the paint will not only have poor aesthetics, waste of paint, and even after a while, the paint will be moldy and fall off (there are three points of paint putty).
If you want to ensure the firm quality when you put the putty, you must add a lot of glue. The only thing the painter can use at the moment is 107,108 putty glue on the spot. One square meter of wall-covered ash can be secured with about 0.5 kg of glue. If it is a 200-square-meter wall, 100 kg of glue must be used.
The 100 kilograms of glue contains 100 grams of formaldehyde if it meets the national standard (Formaldehyde content of glue GB18583-2001 is: formaldehyde ≤ 1 g/kg glue). This 100 grams of formaldehyde is evenly volatile in a 250-cubic-meter home in accordance with national standards. It takes 4,000 days to complete (the national standard for formaldehyde in the indoor air is: formaldehyde ≤ 0.1 mg/m3 air/day. Therefore 250 cubic meters In the air, formaldehyde: 250 × 0.1 ≤ 25 mg / day to meet national standards, will not cause health hazards to people. 100 grams of formaldehyde & spanide; 25 mg / 250 cubic meters of air / day = 4000 days).
Visible, the glue in the putty putty is the culprit in the generation of formaldehyde!
Third, the wall paint
Now everyone usually uses water-based wall paint. There will be a little taste when brushing, but after a few days when the paint is completely dry, why doesn't it taste? This is because the taste of water-borne paint is mainly caused by benzene-based materials, and the taste of benzene-based materials is volatilized and released quickly. This is the same as the benzene-based material in wood lacquer, so long as it is evaporated, it will not affect the human body. Harmful.
Fourth, wallpapering link
Use a lot of glue when wallpapering. If this glue is poisonous, then it will be poisonous if it evaporates into the air. (If using ordinary wallpaper powder, seams and firmness cannot be guaranteed). The nitrocellulose paint on the wall before wallpapering is extremely toxic, and it is recommended to replace it with a water-based wall primer.
In addition, in the early years, radioactive contamination of marble and bricks caused great trouble for people. However, in recent years, with the advancement of science and technology and increased supervision by the state, as long as we use regular brand products, the radioactive harm of helium will be avoided.
In summary, there are odors in the decoration, resulting in toxic hazards such as formaldehyde, benzene series, etc. The root cause is the large amount of glue used in the man-made board, woodworking, putty putty, wallpaper and other links. Especially formaldehyde. A large amount of formaldehyde must be evaporated for several years or even more than ten years before it is completed (the treatment is effective for a short period of time, and the treatment cost is high, generally 8-18 yuan/cubic space). The danger of formaldehyde (formerly medical formalin) is that if there is 1 mg of formaldehyde per cubic meter of air, it will lead to miscarriage in pregnant women and leukemia in children. If it contains 5 mg, it will cause adults to die in a short time. (Across the country, 110,000 people die every year due to air pollution.)
So, whether new homes that have been renovated are necessarily unsafe? Briefly use or use “green frog†plant glue that does not contain toxic substances such as formaldehyde, benzene series, cyanide, and halogenated hydrocarbons. At the same time, select the plate that has reached E0 level and high-quality wooden floor and furniture, and then use the brand wall. Topcoats and wood lacquers are all compatible with each other. Then your new home will not have any odor and the indoor air will be safe and healthy during the renovation process and after the renovation.
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