Polyurethane adhesives become the focus of development of high quality adhesives

With the gradual improvement of China’s environmental protection regulations and the improvement of people’s own health awareness, environmentally friendly adhesives with good quality, no pollution, and conformity with international standards are gradually becoming the mainstream products for synthetic adhesives. This is the analysis of the adhesive market by relevant experts. The conclusion. Traditional adhesives such as polyvinyl alcohol formaldehyde adhesive (107 glue), neoprene adhesive (commonly known as all-purpose adhesive), etc. are already not suitable for development and environmental protection needs.
Waterborne rubber has a promising future. Water-based glue contains no organic solvents and no pollution. It is an environmentally friendly adhesive product. Last year, China produced 681,000 tons of water-based rubber, with an average annual growth rate of 18.4%, which is one of the fastest growing types. With the increase in production volume, the quality of products has also been continuously improved. The number of varieties has increased, and some adhesives with high technical content and good performance have appeared continuously. Such as good cold and water resistance latex, scrub resistance, pollution resistance and good water resistance of organic modified acrylic architectural emulsion and so on. At present, in addition to the commonly used acrylic, polyvinyl acetate and VAE emulsions, research and development of polyurethane emulsions have also made progress, and will have very good prospects for development.
Hot-melt adhesives and hot-melt pressure-sensitive adhesives have developed rapidly. The hot-melt adhesive has no pollution, rapid curing, wide adhesive surface, is suitable for continuous production, and is convenient for storage and transportation. The product has developed rapidly in recent years. Last year, the output reached 45,000 tons, and the average annual growth rate was about 30%. It is the fastest growing rubber species in China.
High-performance adhesives will develop rapidly. According to the market demand, in the future, the development focus of China's high-quality, high-performance adhesives will be modified acrylic adhesives, polyurethane adhesives, epoxy adhesives, and organic silicones.
Experts believe that at present, there are four types of adhesive products that China needs to actively research and develop: epoxy or polyurethane-modified acrylate adhesives, special pressure-sensitive adhesives and tapes, polyurethane resin raw materials for shoe-use adhesives, and retort-resistant, especially non-toxic. Aliphatic isocyanate type PU structural adhesive, reactive hot melt adhesive, waterborne PU adhesive and PU sealant.