Epoxy glue is also known as epoxy resin and epoxy resin glue. Because of its low price compared with other similar products, it has various forms of application. The form of epoxy glue is a transparent liquid, and it needs to be mixed with AB to cure it. , The cured product has the characteristics of water resistance, chemical resistance, crystal clear and so on.
Epoxy adhesive is formulated with polyurethane prepolymer modified epoxy resin (component A) and self-made curing agent (component B) in a ratio of 10:1 to 1:1 (weight ratio) to be resistant to high temperature and good toughness. , Reactive curing system. Among them, the polyurethane prepolymer is a hydroxyl-terminated polysiloxane and a diisocyanate reacted in a certain proportion under certain conditions to prepare an isocyanate group-terminated polysiloxane polyurethane prepolymer, and then the epoxy resin is treated with this polyurethane prepolymer. Modified. The self-made curing agent is composed of diamine, imidazole compound, silane coupling agent, inorganic filler and catalyst.
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Zhang Xiaoqiang, deputy director of the National Development and Reform Commission, said that the five years since the party’s 16th National Congress was a period of high-speed development of China’s high-tech industries. In 2006, the added value of China’s high-tech industry accounted for 8% of China’s GDP, which was an increase of 3 percentage points over 2000. The high-tech manufacturing industry’s sales revenue grew at an average annual rate of 27%, reaching 4.2 trillion yuan in 2006. The export of high-tech products more than quadrupled, reaching 281.5 billion U.S. dollars last year, accounting for 29% of China's foreign trade exports. At present, the scale of China's high-tech manufacturing industry and the total amount of product exports have already ranked second in the world. By 2010, we must strive to increase the proportion of China's high-tech industry's added value to 10%.
According to Zhang Xiaoqiang, at present, the National Development and Reform Commission is actively communicating with the National Development Bank and the Shenzhen Stock Exchange and other institutions to encourage financial institutions and capital markets to use various methods to support the innovation and high-tech industries of Chinese companies. One of the priorities of the next step is to increase the efforts of high-tech transformation and upgrading of traditional industries, and focus on the key and common technologies in energy conservation, clean production, and comprehensive utilization of resources, vigorously implement special projects for industrial technology development, and build national engineering research centers. The national engineering laboratory and the state-identified enterprise technology center have accelerated the improvement of industrial technology's independent research and development capabilities, and have made efforts to ease the technological bottlenecks in the adjustment of industrial structure and the change of growth mode.
At present, the scale of China's high-tech manufacturing industry and the total amount of product exports have already ranked second in the world. This reporter learned from the press conference held by the State Council Information Office in Beijing yesterday.