Beijing University of Chemical Technology has successfully developed a high-performance halogen-free flame retardant cable material preparation technology recently. In China, a new method for synergistic flame retardation of low-filling nano-magnesium hydroxide and red phosphorus and micro-hydrogen peroxide for two different surface treatment states are used for the first time in China. The combined use of magnesium technology makes the material have excellent comprehensive properties such as high strength, high flame retardancy, good fluidity, and good heat resistance, and the performance index has reached the advanced level of similar international products.
The successful development of this technology enabled China to possess high-performance halogen-free flame-retardant cable material products with independent intellectual property rights, which broke the passive situation of imported products monopolizing the domestic market. According to Professor Zhang Liqun, the technical director of the project, halogen-free flame-retardant is one of the key development trends of fire-retardant technology for wire and cable materials. With the increasingly stringent environmental protection standards and the increased awareness of wire and cable fire accidents, the country has made halogen-free wire and cable. Flame retardant requirements are getting higher and higher, so halogen-free flame retardant cable material in the domestic market is very large, the annual demand is about 3,000 tons, but some of the existing domestic low smoke, halogen-free flame retardant cable material products exist With low mechanical properties and poor processing flow properties, the country currently relies mainly on imports. Due to the high price, marketing is limited.
This technology can not only produce halogen-free phosphorus-containing flame-retardant cable materials but also halogen-free non-phosphorus flame-retardant cable materials, making it difficult to develop technologies. For the halogen-free and phosphorus-containing flame-retardant cable materials, a new method of synergistic flame retardation of nano-magnesium hydroxide low-filling and red phosphorus was adopted for the first time, and the surface modification technology was used to further weaken the network structure of nano-magnesium hydroxide and enhance the dispersion; Halogen-phosphorus flame-retardant cable material adopts the high filling technology of micron magnesium hydroxide. Two different surface-treated micron magnesium hydroxides are used in innovative ways to ensure halogen-free, high flame-retardant, and heat-resistance. At the same time, it ensures good material strength and good processing fluidity, so that the difficult balance between the two can be solved.
The halogen-free flame-retardant cable material successfully developed by Beijing University of Chemical Technology can be comparable to imported products in terms of performance, but the price is lower than that of imported products. It can save raw material costs of 3000 to 5,000 yuan per ton for cable manufacturers and has a strong market. Competitive Advantage. It is reported that this technology has passed the appraisal of scientific and technological achievements organized by the Beijing Municipal Science and Technology Commission and will first be industrialized at the Fine Chemical Plant of Beijing University of Chemical Technology.