What you don't know about adhesives

A survey conducted by the Indoor Environment Monitoring Committee of the China Interior Decoration Association reveals that artificial wood panels are the primary source of formaldehyde in indoor environments. Besides the negligible amount of formaldehyde present in the wood itself, the primary culprit is the adhesives added during production. Data shows that my country already leads the world in the production of artificial wood panels and wood-based adhesives. However, little is known about the potential effects of these adhesives on the human body.

The formaldehyde in wood panels primarily comes from the adhesive used in the panels. Most commercially available panels use urea-formaldehyde glue, which, as the name suggests, contains a certain amount of formaldehyde. Therefore, the glue used is crucial to producing environmentally friendly panels. By adjusting the glue formula and the amount of formaldehyde added, panels can be made to meet national standards for E1 or even E0 grades.

So what kind of adhesive is used for more environmentally friendly boards? Of course, it is MDI glue.

Q: What is MDI glue?

MDI is a general term for diphenylmethane diisocyanate, mixtures containing certain proportions of pure MDI and polyphenylmethylene polyisocyanates, and modified products of pure MDI and polymeric MDI. MDI adhesives, a downstream product of MDI, are used in the manufacture of various board materials.

MDI is the most important raw material for polyurethane production, with small amounts used in applications beyond polyurethane. Using MDI adhesives to make boards, which are formaldehyde-free and beneficial to home health, is expected to develop into a product with the greatest market potential and industrial prospects.

Q: What is the best MDI glue?

first

MDI glue does not contain formaldehyde, and the environmental performance of the board is comparable to that of logs;

Secondly

MDI has high bonding strength, effectively improving the bonding strength and static bending strength of the board;

Then

MDI glue is insoluble in water and will separate into layers when it comes into contact with water, which provides a certain degree of moisture-proofing for the boards produced. The boards produced can be used in kitchens and bathrooms, and can be used as outdoor materials.

at last

MDI raw materials are highly stable and safe, and are widely used in areas closely related to people's livelihood and medical care, including Lycra fibers for clothing, refrigerator liner materials, and even artificial organs implanted in the human body, such as artificial blood vessels and heart valves.

Q: What are the applications of MDI glue?

Both solid wood chipboard OSB and LSB high-energy home furnishing boards use MDI adhesive instead of the chemically unstable urea-formaldehyde resin adhesive used in ordinary artificial boards. This truly ensures formaldehyde-free, green, and healthy boards.

What we should cherish most is not wealth and fame, but a safe and healthy life.