I. Environmental protection and high quality flame retardant plastic is a new trend
With the development of society and the improvement of the quality of life, people's awareness of environmental protection and safety is constantly increasing. The quality of electronic and electrical products, fire safety and environmental protection issues have attracted more and more attention from consumers and manufacturers.
Traditional halogen-containing flame retardant plastics will generate a large amount of smoke and toxic corrosive hydrogen halide gas when burning, causing secondary harm. As early as 2006, the European Union completely banned the use of bromine-based flame retardants such as PBB and PBDE in the European Union's Prohibition of Hazardous Materials in Electronic and Electrical Appliances (RoHS), replacing low-toxic and halogen-free flame retardants with halogen-free flame retardants Is the general trend. However, in recent years, halogen-free flame retardant plastics, which have received much attention, often have a large amount of low-efficiency halogen-free flame retardants, which causes the mechanical and electrical properties of products to be greatly reduced.
High-grade halogen-free environmentally friendly flame retardant plastics, such as CGN Juner's Junan TM, have brought practical and reliable solutions to achieve the goal of green flame retardant without sacrificing the original performance of the material.
II.The current status of halogen-free flame retardant nylon
Compared with developed countries and regions in the world, the current consumption structure of nylon flame retardants in China is very wide.
Foreign flame retardants have tended to be environmentally-friendly flame retardants mainly containing phosphorus and inorganic systems, while China is still dominated by halogen-based flame retardants that are more polluting and more toxic, which is not in line with national environmental protection policies. Requirements and development trends. Therefore, strengthening the research and development of environmentally-friendly phosphorus-containing flame retardants and phosphorus-based flame retardant nylon materials is the development trend of flame retardant nylon in China.
Difficult to pass traditional vertical burning and glow wire tests
At present, the research work in domestic academic circles is mainly focused on the development of polymer nanocomposites. Such composites can effectively reduce the heat release rate of the material during combustion, reduce the amount of smoke released, and delay the combustion time, but it is more difficult to pass the traditional Vertical burning and glow wire test. At present, most industries use vertical combustion and glow wire test methods to evaluate the flame retardancy of materials. There are also some reports on the design and synthesis of monomolecular expanded phosphorous flame retardants, but due to their low thermal stability, they are suitable for halogen-free flame retardants of polyolefins and not for flame retardant nylon 66.
In the industrial application, it is mainly red phosphorus
Industrially, the phosphorus-containing flame retardants used in nylon can be divided into inorganic phosphorus-based and organic phosphorus-based flame retardants. Inorganic phosphorus system includes red phosphorus, phosphate and polyphosphate. Red phosphorus is the main type in industrial applications. The advantage of red phosphorus as a flame retardant is that the effective phosphorus content is high, and the added amount is less than other flame retardants, so that nylon can maintain its own mechanical properties. Its disadvantages are that it is easy to burn, and can generate highly toxic gas phosphine through reaction with water, and its surface has strong hygroscopicity, poor storage stability, and poor compatibility with resin. Red phosphorus is improved by adding surface additives to make the surface microencapsulated, that is, microencapsulated red phosphorus, which makes red phosphorus widely used. However, the red color of red phosphorus limits its ability to produce only dark-colored nylon products such as red and black.
III.Why do international first-class companies such as ABB and Legrand choose Junan TMB2GM-UH flame retardant nylon?
In recent years, ABB, Chint, Schneider, Legrand and other world-class companies have imported more halogen-free flame retardant nylons because of the high requirements on product quality. But why did you choose Junan? In addition to considering cost, there is also an improvement in performance.
Junan TM is the research and development innovation of CGN Juner in halogen-free flame-retardant plastics. It provides new flame-retardant solutions for manufacturers who want to use efficient halogen-free and environmentally-friendly raw materials in the insulation parts of the electrical and electronic industries. In particular, Junan TMB2GM-UH flame retardant plastic is based on nylon 66, which is reinforced with high efficiency halogen-free flame retardant and 25% glass fiber. There are two major advantages:
1.Highly efficient flame retardant
We can see that the flame retardancy of Junan TMB2GM-UH flame retardant plastic is not inferior to halogen-free flame retardant nylon produced by large foreign companies. Product performance comparison is shown in Table 1. The 1.6mm-thick sample has a flame retardancy of UL94V-0, which can only be achieved with the addition of a bromine-containing flame retardant, and a tracking resistance index of 600V.
2. Excellent physical and chemical properties
At the same time, due to the use of efficient and environmentally friendly flame retardants, this series of products not only have good flame retardant properties, but also maintain excellent mechanical and electrical properties due to the low amount of flame retardants. Manufacture of low voltage electrical appliances required by CTI value. This product has been certified by third-party authorities such as UL and is a halogen-free, environmentally friendly plastic that meets the requirements of the high-end engineering plastics industry.
IV. Broad market applications
Junan environmentally friendly halogen-free flame retardant plastic meets the increasing fire safety requirements and requirements of various other demanding applications. It has the largest share in industrial electrical appliances in the country, and is ABB, Legrand, Chint Long-term partner of world-class companies such as Electric Appliances and Schneider-Delix. Widely used in small circuit breakers, leakage protectors, molded case circuit breakers, coil bobbins, electronic connectors and other components, to provide customers with environmentally friendly halogen-free flame retardant plastic solutions.