Home manufacturers to play environmental protection brand "zero formaldehyde" is really formaldehyde "zero add"

Recently, some media reported that the National Standardization Administration Committee intends to amend the current national standards for floor panels. The original formaldehyde content E2 standard will be deleted and the formaldehyde limit value will be lowered. The problem of formaldehyde in the home has once again caused concern.

In the Zhongshan home market, a trend of expanding the market with “environmental protection” performance is on the rise. Merchants may introduce new types of plates with very low formaldehyde content, or develop new technologies to improve formaldehyde-reducing efficiency, or replace traditional formaldehyde-containing materials with new materials.

For the concept of “zero formaldehyde” appearing in the building materials market, the merchants frankly stated that “zero formaldehyde” is not completely free of formaldehyde, but realizes “zero addition” of formaldehyde on the basis of natural materials. Zhongshan home industry insiders believe that if many "anti-formaldehyde" methods have been verified to be effective, it will be good news for the entire home furnishing industry.

The amount of formaldehyde in the new sheet is lower than the international limit

As far as the current domestic environmental protection standards are concerned, the formaldehyde limit of floorboards is mainly 5.0mg/L of E2 grade and 1.5mg/L of E1 grade. If the formaldehyde content in the board is higher than the E2 standard, it is beyond the standard.

The National Standards Committee recently proposed to amend this standard. According to the revised draft, the existing E2 standard will be deleted. This means that once the revised draft is passed, the formaldehyde limit of the floorboard will fall to 1.5mg/L of the E1 level, which exceeds this level.

“The E1 standard has high environmental performance, but many manufacturers have not met this standard.” The relevant person in charge of Zhongshan Huahaijia Decoration Co., Ltd. said that the world’s highest standard for formaldehyde content in artificial boards is Japan's F4, its limit value is 0.3mg / L.

However, the person in charge introduced that a “zero formaldehyde” multi-layer board recently introduced by Huahai and the company has a formaldehyde content even lower than the most stringent F4 standard.

This plate is called “Yongen Multilayer Board” and is developed and produced by Beijing Yongen Environmental Protection Technology Co., Ltd. The reporter saw from the scan of a "National Building Materials Testing Center Inspection Report" provided by Huahaijia and the company that the National Building Materials Testing Center had tested the formaldehyde emission of Yongen multi-layer board. The results showed that the formaldehyde content was less than that. 0.1 mg/L.

The person in charge said: "After we got the sheet and the inspection report, we did not dare to believe the inspection conclusion." Subsequently, Huahaijia and the company sent the Yongen multi-layer board to the Zhongshan Inspection and Quarantine Bureau for testing, and concluded that the amount of formaldehyde released was 0.1 mg/L. The reporter saw from the original inspection report issued by the Zhongshan Inspection and Quarantine Bureau on October 18 that the formaldehyde content of the plate was 0.1 mg/L.

Starch to make adhesive to reduce pollution

According to the above test results, the formaldehyde emission of Yongen multi-layer board is only 1/15 of the E1 standard. According to Huahaijia and the company, this means that the environmental performance of this board is quite good. The company recently launched this product with the concept of “zero formaldehyde” sheet, hoping to bring health to the home life of Zhongshan citizens.

The reporter learned that due to the high public concern about formaldehyde content, many building materials products have shown the "zero formaldehyde" signboard to show their superior environmental performance, thus winning customer attention.

But what exactly is "zero formaldehyde"? Can home building materials really reach no formaldehyde at all? The person in charge of Huahaijia and the company said that “zero formaldehyde” is not completely free of formaldehyde, because the air itself contains formaldehyde, and the natural trees themselves contain formaldehyde. After making the household sheet, it is even more impossible to completely eliminate formaldehyde.

“'Zero Formaldehyde' actually means zero addition of formaldehyde on the basis of natural materials.” The person in charge said that Yongen multi-layer board, for example, basically realized “zero addition” because natural wood itself The formaldehyde content is about 0.1-0.2 mg/L, and the formaldehyde detection value of the product is 0.1 mg/L.

Urea-formaldehyde resin binders widely used in artificial boards are prone to release formaldehyde after being decomposed under certain conditions, and thus become an important source of indoor formaldehyde. According to Huahaijia and the company, the adhesive used in Yongen multi-layer board is corn starch, which is compounded and denatured into starch-based API (isocyanate) wood adhesive. Compared with ordinary chemical adhesives, this adhesive contains almost no formaldehyde and does not cause an increase in formaldehyde content when applied to a board.

Microwave technology reduces formaldehyde by 70%

In the Zhongshan home market, in addition to the introduction of “zero-added” new materials, “anti-formaldehyde” has more ideas: research and development of new technologies to reduce the formaldehyde content in furniture, or the use of alternatives to directly absorb formaldehyde.

At present, the common methods of removing formaldehyde in the domestic household industry include veneering method, chemical method and hot ammonia method. Although it can reduce the formaldehyde content in household building materials, it will be associated with many problems, such as short-term aldehyde reduction and easy formation. Secondary pollution, high cost, and long processing time.

The “smart microwave formaldehyde reduction equipment” developed by Zhongshan Leyijia Household Equipment Co., Ltd. has recently attracted many attentions.

According to Huang Jian, the company's chief technical officer, this equipment mainly uses the role of microwave electromagnetic fields to accelerate the slow degradation process in these groups, and release the formaldehyde in the molecular group in the bound state. The average processing time for a large sheet of material takes less than 2 minutes, while the formaldehyde reduction can reach 30% to 70%. At present, the equipment has obtained a number of national patents and is put into production in Zhongshan.

Replacing the original formaldehyde-containing materials with new materials is another way to resist formaldehyde. One of them has entered the diatom mud in Zhongshan in recent years. According to Ma Junde, the general agent of Lanshan Diatom Mud Zhongshan Store, the diatomaceous earth contained in diatom mud has a strong adsorption capacity, and its micropores are 5000 to 6000 times more than charcoal, and can absorb formaldehyde, including formaldehyde. A variety of harmful substances. As an alternative to paint, wallpaper and other materials, the environmental performance is more obvious.

A new "moving trend" of formaldehyde reduction in the home market, a Zhongshan home industry person told reporters that the reason why formaldehyde in furniture and building materials has been difficult to "cure", the key is that its release cycle can last for more than ten years. If the various formaldehyde-reducing technologies that have emerged today can truly solve this problem and can be fully verified, it will be a good thing for Zhongshan Home Furnishing Industry.

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