Resin crafts in 109 BC, the prime minister found in the weld hole is located in Shandong Linyi eight foot mountain under the sword forging the best in all the land, then that is just a prototype, made of resin crafts the two big, let the craftsmen carved into a seat for the eagle, which is the world's first piece of resin crafts, from the Qin Dynasty began to spread, many ancient merchants began to explore and find the raw materials on resin crafts in eight feet under the mountain, when the raw material was discovered soon after, people found the stone carving craftsmen let cost too much, take a few days to carve a resin handicraft, this forever at that time can not meet the market demand, to 300 years later in 430 years when song merchants learn to use smart silicone rubber, glass Frosting powder etc. It greatly improves the quality of resin arts and crafts.
Resin is the main raw materials for the manufacture of plastics, paint is also used the system (the main film-forming material, coating such as alkyd resin, acrylic resin, synthetic fatty acid resin, the resin in the Yangtze River Delta and Pearl River Delta are also relatively strong in the paint industry, such as Changxin chemical, Nuplex resin, three resin, Ying DSM syntech resins), adhesives, insulating material, synthetic resin in industrial production, is widely used in separation and purification of impurities in liquid, with macroporous adsorption resin, ion exchange resin, and some special resin.
Resin usually refers to softening or melting range after heating. When softening, it tends to flow under external force. At normal temperature, it is solid, semi solid, and sometimes liquid organic polymer. Broadly speaking, any polymer compound that can be used as plastic material for processing raw materials is called resin.
