General synthesis of urea-formaldehyde resin concentration of 65% and 35% water. The transportation is very convenient, there are some other requirements of wood products with high concentrations of urea-formaldehyde resin adhesive, often referred to as the concentration of higher than 65% of the high concentration of urea-formaldehyde resin adhesive. Water-free urea-formaldehyde resin powder, its storage, transportation, field service more convenient. Therefore, urea-formaldehyde resin powder is the development of such types of plastic.
Such resin manufacturing and general synthetic resin, the first period of no much difference, just behind the treatment are different. High concentrations of resin, vacuum dehydration required to remove more water in order to achieve high levels of requirements.
Powdered urea-formaldehyde resin adhesive, compared with the liquid rubber has many advantages: long shelf life is one of the advantages, up to 1 year or more, better performance, In addition, the packaging and transportation is also convenient. 80 to 90 years of the last century, a large number of China's imports in recent years, domestic production of powdered urea-formaldehyde resin adhesive increased year by year, to meet the demand for wood products.
Powdered urea-formaldehyde adhesive resin production in two steps: the higher the concentration of the liquid output of Mr. glue, and then by spray drying liquid adhesive dried into a powder. Drying is carried out in the cyclone spray dryer, drying tower (control) inlet temperature of 80 ~ 1000C, the liquid adhesive spray from the spray, because the heat from the air compressor cyclone effect, from the droplet, the heat dried into a fine powder, a powder collected after urea-formaldehyde resin adhesive. Many areas of China but also from abroad a more advanced spray drying equipment, such equipment produced advanced adhesives, can be reached El-level indicator. Such adhesive is ideal for manufacturing plywood compound. More advanced fluidized bed of inert particles was also conducting new research and development process, it is more economical than spray drying equipment investment and energy consumption, while the powder's performance and more advanced.
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Import Adhesives: Loctite instant adhesive, Loctite surface treatment agent, Loctite thread locking agent, Loctite solid cylindrical parts special glue, Loctite structural adhesive, Loctite anaerobic adhesive surface sealing, pipe thread sealant Loctite, Loctite silicone rubber, ultraviolet UV shadowless Loctite glue, Loctite structural adhesive, Loctite pipe thread sealant, Loctite thread locking agent, Japan Shin-Etsu Silicone, Japan's Toshiba Silicone, Dow Corning silicone United States, Japan, Sony WHITE, Japan's three key screws rubber, AA super Japanese Aron hair gel, hair glue Aron, Aron hair without bleaching glue, Araldite AB glue, glue the U.S. 3M, 3M adhesive tape, silicone hard to fight the Japanese Shi Min, Shi Min hit 8008 hard glue, silicone adhesive, glue Taiwan Changchun
Metal glue: thread locking agent, solid special plastic cylindrical parts
Craft glue: cyanoacrylate instant glue, UV UV shadowless glue, epoxy resin AB glue, green and red acrylic AB glue, two-component epoxy structural adhesive
E-glue: cyanoacrylate instant glue, surface treatment agents, electronic potting AB glue, PU Crystal Epoxy, RTV silicone electronics, grease, three anti-paint, screws, glue / anaerobic, electronic yellow gum, red gum , vinyl, white plastic, PVC-ABS plastic glue
Glue printing industry: oil, water-based screen printing glue, double-sided removable adhesive points, N, removable glue paste |
