The future synthetic adhesive market will be dominated by low pollution hot melt adhesives

　　Adhesives belong to organic polymer compounds. With the development of technology, various multifunctional and high-performance adhesives have been increasingly widely used in modern industrial fields and have become an indispensable material for modern industry and defense industry. There are many classifications of adhesives. From the current development and concept, the adhesive industry is developing towards energy-saving, pollution-free, low-cost, and high-performance directions. Therefore, the development of low toxicity and non-toxic environmentally friendly adhesives has become the mainstream of the adhesive industry. In the future, the development direction of adhesives should be environmentally friendly hot melt, water-based, and solvent-free adhesives. The future synthetic adhesive market will be dominated by low pollution water-based adhesives and hot melt adhesives.

　　In terms of environmental protection, environmentally friendly adhesives are divided into:

　　1. Solvent free adhesive, this type of adhesive has no solvent evaporation and will not cause environmental pollution. At present, this type of adhesive mainly includes hot melt adhesive, which is a type of solvent-free solid adhesive based on thermoplastic polymers (resins, rubber). It has the advantages of fast bonding, wide application, non-toxic, and pollution-free environmentally friendly adhesive, suitable for continuous production, easy storage and transportation.

　　2. Water based adhesives, which use water as a dispersing medium, are divided into water-soluble adhesives, water dispersible adhesives, and emulsion adhesives. The advantages of water-based adhesives include: environmentally friendly, non-toxic, non flammable, high solid content, and easy cleaning of existing application equipment.

　　3. Inorganic adhesives are a wide range of adhesives composed of inorganic salts, inorganic acids, inorganic bases, and metal oxides. Inorganic adhesive is a new type of adhesive with many varieties, which can be divided into air drying type, water curing type, hot melt type, and reactive type according to curing conditions. Most inorganic adhesives are a paste made by mixing solids and liquids, and the raw materials are readily available.

　　China began researching and developing hot melt adhesives in the mid-1970s. After more than 40 years of development, the main varieties of popular hot melt adhesives have been produced, mostly industrialized, and have a certain scale. Since the beginning of the 20th century, the hot melt adhesive industry has entered the Kwai development period. Its output has been growing at a high speed every year, and it is one of the fastest growing adhesives. The application scope of hot melt adhesive is constantly expanding, mainly in the following aspects:

　　1) Packaging: It is an application that accounts for a very large proportion of the hot melt adhesive consumer market. Currently, it is widely used in cardboard boxes, corrugated boxes, packaging bags, etc;

　　2) For fiber fabrics: Hot melt adhesive has a large market share and is used in clothing, shoemaking, and other industries; Sanitary products: mainly used for sanitary napkins, diapers, mattresses, bedding, etc.

　　3) Book and periodical binding: used for wireless binding of books and periodicals, etc;

　　4) Furniture: used for wood, furniture to fit wood edges, PVC, etc;

　　5) Shoe making: shaping of leather shoes, toe and toe caps, lining of shoe uppers, folding, insoles, composite of shoe materials, etc;

　　6) Automotive applications: bonding of car lights, windshield filters, car roofs, car interior parts, etc;

　　7) Electronic, aerospace, military, solar cell packaging materials, electronic products, etc.

　　As a type of environmentally friendly adhesive product, hot melt adhesive meets the needs of the times and is a direction for the development of adhesives in the world today. We all know that environmental protection is a global topic and a focal point of concern for various industries. Taking the packaging industry as an example, China's flexible packaging industry has grown rapidly in recent years, and its impact on health and environmental protection has become increasingly prominent. Among them, the use of adhesives for flexible packaging has always been one of the core issues discussed by people. Therefore, the application prospects of environmentally friendly adhesives in this industry are very broad.

　　Currently, with the increasingly strict environmental laws and the growing awareness of environmental protection among people, environmentally friendly adhesives have become the mainstream of synthetic adhesive development in China. Vigorously developing environmentally friendly adhesives such as hot melt adhesives is in line with the direction of structural adjustment in the adhesive industry and the scientific outlook on development; Adapt to the trend of the times! Hot melt adhesive technology is a vibrant new technology, material, and process that creates favorable conditions for achieving modernization (automation, high-speed, and continuous) of the national economy, with a promising future ahead.