Professional Polymer Technology
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Synthetic Adhesive can be the same or two or more homog […]
Synthetic Adhesive can be the same or two or more homogeneous or heterogeneous parts (or materials) artificially linked together, after curing with sufficient strength of organic or inorganic, synthetic class of substances, collectively referred to as Synthetic adhesives or synthetic adhesives, adhesives, conventionally referred to as synthetic rubber.
There are many ways to classify synthetic adhesives. According to the application method can be divided into thermosetting, hot melt type, room temperature curing type, pressure sensitive type. According to the application object is divided into structural, non-configuration or special glue. The morphology can be divided into water-soluble, water-based, solvent-based and a variety of solid type.
At present, the development trend of synthetic adhesives in the world is as follows: Environmentally friendly synthetic adhesives developed rapidly. With the increasingly stringent environmental regulations, developed countries vigorously develop water-based and hot-melt and other solvent-free adhesives. In 1998 the developed countries of the synthetic adhesive market, water-based plastic accounted for 50%, hot melt about 20%, while the solvent-based adhesives accounted for only 20%. The future of the global synthetic adhesive market will be low-pollution water-based glue and hot-melt adhesives, environmentally friendly synthetic adhesives will be the market in favor of goods.
High performance synthetic adhesives grow rapidly. Currently. Due to the strict requirements of the quality of adhesives in the construction industry and the automotive industry, the construction conditions are demanding, and the developed countries are committed to the development of high-performance, high-quality new types of rubber. And made great progress. In recent years, the annual growth rate of synthetic adhesive production in developed countries is very low. Some varieties of production even decline, but sales have increased faster, the main reason is the development of high-performance synthetic adhesive has brought great economic benefits. High-performance synthetic adhesives include epoxy, silicone, polyurethane and new modified acrylic adhesive.
Construction technology and sizing equipment constantly updated, the adhesive put forward higher requirements. In order to improve product quality, simplify the operation process and improve the construction efficiency, developed countries have developed a series of special equipment, not only to synthetic adhesive users to provide a better means of construction, but also the adhesive industry put forward higher requirements for its Sustainable development has created an important condition.