In view of the introduction of 10 kinds of standards for interior decoration materials in the country, higher requirements have been put on the quality of wood-based panels, and the development of low-formaldehyde emission urea-formaldehyde adhesives is imperative. To this end, a number of national and provincial inventors in the Hejiang County Chemical Industry Research Institute of Sichuan Western Chemical Industry Institute, Bai Mingfang, developed and further developed and improved on the basis of the torch project “MF Low-toxicity Urea-formaldehyde Adhesiveâ€. The company has successfully developed a new technology of “MF-friendly urea-formaldehyde rubber†with advanced domestic level, and the product has passed the environmental protection standard of Sichuan Product Quality Inspection Institute.
For a long time, all types of urea-aldehyde glued plates released large amounts of free formaldehyde during production and use, which seriously polluted the human living environment. Countries around the world, especially the United States, Germany, Japan, and Other countries have invested a lot of manpower and material resources, committed to low The study of formaldehyde emission urea-formaldehyde glue has not yet completely solved this problem. For many years, many manufacturers in China have adopted the method of adding too much urea when making the glue, which can not achieve the effect of reducing the content of free formaldehyde. The technology of “MF Glue Synthesizing New Technology†has been confirmed by a number of man-made board factories, reducing the release of carcinogen free formaldehyde, and its technology is advanced, scientific, and practical.
The “MF acid-base catalyst†developed by the Hejiang County Institute of Chemical Industry replaces the acid-base additives of traditional processes. It can completely polymerize formaldehyde and urea and absorb the remaining free formaldehyde in the addition polymerization reaction. It is the basis of traditional technology. On a major breakthrough, the finished glue is still white and transparent, and the water-soluble, brushing, adhesive force, and water resistance all meet the application requirements, and no glue (without filler) is needed for the glue. The solid content is 48%. The above, the viscosity of 30 ~ 50mpa · s, adhesive bonding strength of the sheet and free formaldehyde emission, in line with the permission of GB/4897-92, and to achieve E1, E2 level standards. This environmentally-friendly urea-formaldehyde adhesive will make a great contribution to the creation of a green environment after it is put on the market.
The new process is suitable for the production of plywood, decorative panels, particle board, wood floors and laminate flooring. It also maintains the health of production workers and reduces pollution to the environment during hot pressing and use. It has low cost. Easy to purchase raw materials, simple production process, small investment, quick, mature and reliable technology. Home and office supplies made of glued sheet materials, free formaldehyde emissions are reduced to a level that is harmless to the human body, and production technology reaches the level of developed countries.