Adhesive Market Characteristics and Development Trend

Although the overall development trend of adhesives is non-organic solvating, polyurethane solvent-based adhesives cannot achieve the solvent-based level due to their excellent process and adhesive properties, especially non-organic solvent-based adhesives. Therefore, solvent-based polyurethane adhesives Will still exist for a long time.

In Europe, the United States, Japan and other developed countries or regions, the use of solvent-based polyurethane adhesive in the field of dry compounding more than 60%. Since 1980, China has begun to introduce Japanese composite film production technology and equipment. It is estimated that the dry film production line is now over 300, and the polyurethane adhesive is used over 35,000 tons per year. The solvent-based two-component polyurethane adhesive that was first applied to the composite packaging industry in China was produced by the Beijing Chemical Industry Research Institute in 1984 from the former West Germany. The main product is a low viscosity, high solids (75%) polyurethane adhesive. Since then, various types of domestic composite equipment have entered the market, and domestic manufacturers and research institutes have successively developed a variety of compatible solvent-based two-component polyurethane adhesives, mainly low solids (15% to 50%), high-viscosity products.

In general, low-viscosity, high-solid-content products can be coated at a high concentration of 40% or more because of their low viscosity, low solvent consumption, environmental friendliness, low overall cost, and high transparency and strength of the products. Equipment, processes, and raw material control all have higher requirements, and various defects such as poor strength are likely to occur when the application is not appropriate. This product is suitable for use in a composite manufacturer with a certain scale. The low solids content (15%~50%) and high viscosity products have high initial tack and good adaptability to the domestic composite machine, but the transparency is slightly poor, the solvent is used too much, the environment is not friendly, and the overall cost is high. The products are suitable for medium and small-scale compound manufacturers.

At present, from the perspective of China's overall adhesive market, it has the following characteristics:

Multinational companies are promoting both functional and non-organic solvent-based products in China, seizing high-end markets, and direct-selling or co-production of ordinary polyurethane adhesives to compete for the general market. After years of digestion and absorption, domestic companies have developed their own products. Many companies have mastered ordinary polyurethane adhesive production technologies and are now producing. The current output is estimated at 30 thousand tons per year, and about 30 varieties. Some domestic companies with strong technical capabilities have been able to produce high-performance functional or non-organic solvent-based products. Domestically produced functional solvent-based adhesives, such as high-temperature cooking type, media-resistant type, and anti-slippery type, have come out one after another to make up for the gap. In the area of ​​non-organic solvent type polyurethane adhesives, despite the introduction of new products, there is a certain gap between process operation and application performance and solvent-based products, and the cost is also at a disadvantage. The application and promotion of the products is more complex than that of developed countries. A big gap.

With China's accession to the WTO and the improvement of domestic environmental awareness, technical barriers such as environmental protection will be highlighted. Composite film manufacturers and adhesive manufacturers should work together to improve the technical level of composite products.

Comprehensive inspection and analysis of the current domestic polyurethane adhesive industry, regarding the next development of polyurethane adhesives, we believe:

(1) The production technology of domestic solvent-based two-component polyurethane adhesives for general composites has been fully understood. Some manufacturers have mature technologies and stable quality, which can completely replace imported products;

(2) The production technology of solvent-based two-component polyurethane adhesives for retort cooking of some domestic manufacturers has passed. Many years of popularization and application show that the product quality is stable and the price is reasonable, and it can already replace imported products;

(3) Aluminized film special glue, anti-sliding agent functional rubber and other products have strong pertinence and outstanding performance and should be vigorously promoted;

(4) The climate in China is obviously different, and the status of the composite equipment is different. The composite manufacturer should select the applicable adhesive type in a targeted manner;

(5) China has joined the WTO. Compound manufacturers should pay attention to improving technology, renewing composite equipment, promoting with environmental friendly adhesives, breaking environmental protection technology barriers, and adapting to the requirements of globalization;

(6) Adhesive development units and manufacturers should speed up the development of environmentally friendly alternatives so that the overall product performance meets the composite requirements;

(7) Industry associations should improve product inspection methods and methods, accelerate the formulation of product industry standards, establish technical barriers, and protect national industries.

With the continuous development of the Chinese economy and the continuous improvement of people's quality of life, the market has become increasingly demanding for adhesive products, and products with good performance, high quality, and environmental protection will be favored by people. Adhesive manufacturers and research institutes should increase investment in science and technology in accordance with market demand, and actively research and develop high-performance, high-quality adhesive products to meet the competition in domestic and foreign markets.