is mdi glue really green

Is mdi glue really green
MDI is the most important raw material in the production of polyurethane, and there are also a small number of MDI applications in other fields. The use of MDI environmental protection adhesive production sheet, can effectively solve the problem of overdevelopment of forest resources, but also to avoid formaldehyde pollution, human family and family health benefits, so that it has a great space for development and industrialization prospects.

MDI is a diphenylmethane diisocyanate, containing a certain proportion of MDI and polyphenyl polymethylene polyisocyanate mixture, and is composed of MDI and polymer MDI. MDI glue, also known as MDI environmental protection glue, is a MDI downstream product for the production of various types of sheets.
MDI is highly toxic and its production process is strict. Currently, only large domestic companies such as Wanhua Chemical and foreign companies such as BASF can produce MDI, so the price of raw materials has been high. MDI is very toxic, and the isocyanate group on MDI is extremely active, which can react with water to form a non-toxic polyurea, so the storage conditions of MDI are very strict, and once it reacts with water in the water, it will lose its effect. The manufacture of polyurethane must be carried out in the absence of water, the laboratory requirements are higher, MDI raw materials must be treated without water, otherwise it will have a great impact on the purity of the product. Because even if it is done, the MDI is not fully functional, and within a few days, the remaining MDI will be depleted along with the moisture in the air.
Therefore, the concern about MDI residual does not exist, MDI glue is not as perfect as the business said, the main ingredient used in MDI is isocyanate, which has a certain toxicity and will cause damage to people's eyes and respiratory tract, but this drug is low toxic, the harm to the human body is almost negligible. Especially compared to the great harm caused by formaldehyde, its harm can be said to be a child playing house, so consumers can rest assured.
Polyurethane has elasticity, high elasticity, high strength, high processing performance, especially in many fields such as heat insulation, sound insulation, wear resistance, oil resistance, elasticity, etc., is the sixth largest plastic after polyethylene, PVC, polypropylene, styrene, ABS. MDI and TDI are two different substitutes, which are the main raw materials of polyurethane materials. The cost of MDI is slightly higher, and the polyurethane products made of MDI have better plasticity.