Flame retardant of nylon PVDF solar backplane membrane equipment
DATE：2021/3/15 9:33:53 / READ： / SOURCE：This station
Flame retardant of nylon
PVDF solar backplane membrane equipmentNylon has high mechanical strength, high melting point, wear resistance, oil resistance and general organic solvent resistance, and excellent heat resistance. As a widely used material, nylon is mostly faced with harsh environment, such as high humidity, high temperature, high voltage and so on. Therefore, the flame retardancy of nylon has become a crucial factor in many fields, especially in electrical applications, such as terminals, sockets, switches and so on. Nylon has good flame retardancy because of its amide group in molecular structure. According to astmd635 test, it belongs to self extinguishing type. Among them, the oxygen index of nylon 6 is 24.5, that of nylon 66 is 24.3, that of nylon 1010 is 25.5, and that of 30% glass fiber reinforced nylon 66 is 28. However, according to the U.S. UL94 standard, nylon should be ul94v-1 or V-2 grade, which can further reach V-0 grade by adding flame retardant. Therefore, when nylon is used in electrical related products, flame retardant modification is needed. PVDF solar backplane membrane equipment www.handern.com
Since the Research Institute of chemical industry and products of Tonghua Institute of industrial products started the research on p-flame-retardant reinforced PA6 after PA in the 1990s, it has been applied in many industrial fields as a composite system of aromatics, flame retardants, nitrogen flame retardants and heavy metal oxides. The composition of flame retardant PA6 is. 100 phr of PA6, 30 phr of composite flame retardant and 2 phr of anti dripping agent. Its flame retardancy is FV-0, notched impact strength is 6kj / m, tensile strength is 52Mpa, bending strength is 90Mpa, and hot deformation temperature (1.82mpa) is 75 ℃; The formulation of flame retardant reinforced PA6 is as follows: pa6100 phr, composite flame retardant 35 phr, anti dripping agent 4 phr, glass fiber 58 phr. Its flame retardant reaches FV-0 grade, notched impact strength is 20K] / m, tensile strength is 135Mpa, bending strength is 240mpa, thermal deformation temperature (1.82mpa) is 190 ℃. The Research Institute of polymer materials of Anhui University has also carried out the development of antistatic and flame retardant PA6. The obtained antistatic and flame retardant PA6 material can be used in coal mine, electrical and electronic, instrumentation and other occasions requiring flame retardant and antistatic. The industrialization and application of PA66 produced by Heilongjiang nylon factory, PA6 produced by Guangzhou Jinfa technology development company, red phosphorus flame retardant masterbatch produced by Chenguang Research Institute of chemical industry, nitrogen flame retardant and its flame retardant PA6 produced by Yuehua Research Institute, etc. PVDF solar backplane membrane equipment www.handern.com
Development trend
High performance and multi-functional flame retardant nylon the Dutch DSM company has developed the corrosion and toughness of flame retardant PA4
The main flame retardants are styrene bromide and antimony trioxide, and the hot deformation temperature is 285 ℃. Matsushita Electric Co., Ltd. of Japan has developed flame retardant copoly nylon with bright finish, flame retardant, arc resistance and good toughness. Its bending strength is 72mpa, bending modulus of elasticity is 3200MPa, impact strength is 8.5kj/m, arc resistance is 120s, CTI (leakage index) value is 600V, and flame retardant is UL94V-0 The phosphorus series flame retardant nylon 6 / 6t / utramidtkk4365c5 developed by BASF company has high strength, high toughness, no leakage, welding resistance, high temperature resistance and electroplating ability. It is an ideal material for electrical appliances and automotive parts. PVDF solar backplane membrane equipment www.handern.com
The development of non halogen flame retardant nylon will produce dioxin when halogen flame retardant is burned, which seriously pollutes the environment. Countries all over the world, especially western European countries began to ban the use of halogen flame retardants. It is urgent to develop halogen-free flame retardant. BASF company launched red phosphorus flame retardant nylon. For example, the smoke concentration is only 1 / 4 of halogen flame retardant nylon. BASF company also launched Mg (OH); flame retardant pa6-kr4455 series products, which also have the characteristics of high CT smoke density and low smoke density, and can produce light color products. Japan Mitsubishi engineering plastics company has developed nitrogen flame retardant nylon, which is mainly composed of PA6, melamine cyanate, stearic acid, diacid and ethylenediamine. Its flame retardancy reaches UL94V-0. In addition, nano fluorinated mica and ammonium polyphosphate used in nylon flame retardant is also the development direction of nylon flame retardant.
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