Adjustment of market structure of flame retardant

2022-08-16
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Adjustment of the market structure of flame retardant plastics in Western Europe

the market of flame retardants and flame retardant plastics in Western Europe is in the stage of comprehensive structural adjustment. In order to meet the requirements of new flame retardant, environmental protection and price, people have researched and developed some new flame retardant series, especially for engineering plastics. For example, Safron series products of deadsea bromide company in Israel are compounds containing halogen flame retardants and synergists, which are dust-free and low in dosage. The flame-retardant plastics have better thermal stability and photostability, and the melt flow performance has also been improved. Antimony oxide is not necessary for some varieties. Safron series products are mainly used for UL 94v-2 and UL 94v-o polypropylene (PP), UL 94v-2 high impact polystyrene (HIPS), UL 94v-o polyamide (PA) 66 and UL 94v-o polybutylene terephthalate (PBT). For flame retardant polyolefins, Ciba has launched two flame retardants with excellent light stability, one is flamestab nor LL6 hindered amine light stabilizer, which can give materials quite good flame retardancy when adding about 1% in polyolefin film or PP fiber.121. Another trade name is tinuvin fr, which is a binary system, especially suitable for outdoor PP products. It can give PP excellent thermal stability and light resistance, and its flame retardant performance meets the requirements of German DIN 4102 grade B1 building materials. Klein company of Germany has introduced a new phosphorus flame retardant, which belongs to organic phosphinates, and the trade marks are exolit OP 1311 and 1312m1. This flame retardant is suitable for glass fiber reinforced PA 6 (grpa 6) and glass fiber reinforced PA 66 (grpa roller hearth quenching furnace trial production; December 8th, 2015 66), which can compete with nitrogen and bromine flame retardants previously used in PA. Grpa 6 and grpa 66 flame retardant with exolit OP have low density, good mechanical properties and good color, especially low smoke density and high leakage track index

a product with market prospects in flame retardant engineering plastics is halogen-free UL 94V-0 Pb. BASF company of Germany has recently developed a halogen-free flame retardant pbtfb4400 reinforced by glass fiber). This material 1, especially September 29, 2014 When it is 6 mm thick, it can reach the level of 4 V O of UL 9natvar's new micro extruded medical catheter based on thermoplastic. When it is 1mm thick, it can pass the 960 ℃ hot wire test and the 775 ℃ hot wire ignition test newly adopted in Europe. The flame retardant used in this flame retardant PBT is a phosphorus nitrogen system (excluding red phosphorus), which has good thermal stability and light resistance. In addition, German Siemens also developed halogen-free and red phosphorus free flame retardant PBT and PA6, the former at 1.6 mm. The latter reaches ul94v o grade at O.75 mm. This flame retardant PBT and Pa will soon be commercialized. In addition, at present, many manufacturers (such as DuPont, Ticona and Radici in Italy) are also actively researching and developing halogen-free UL94 V o-grade PBT similar to the above products. However, the research and development of halogen-free flame retardant UL 94 V O hips and acrylonitrile butadiene styrene terpolymer is still a technical challenge. Another new development of flame retardant plastics is the use of nano layered silicate in halogen-free flame retardant polyolefin cable materials to improve the flame retardancy of materials and reduce the amount of inorganic flame retardants. If less than 5% nano layered silicate is added to the ethylene vinyl acetate cable material burned with aluminum hydroxide (ATH) isi~, the mass fraction of ATH in the cable material can be reduced from 65% to 45%, while the peak value of the material's heat release rate remains unchanged, and the processability, charring, light resistance and smoke generation are improved

a development trend of flame retardants is the use of composite flame retardant system masterbatches that help to improve the comprehensive properties of materials. Flame retardant manufacturers are increasingly supplying this composite flame retardant system, which has high requirements for the manufacturing process of experimental panels (also known as test benches). In particular, flame retardant masterbatches are being accepted by plastic manufacturers. The main reasons are: (1) with multi-functional general production equipment, even if a small amount of products (such as about 1t) are produced, the use of flame retardant masterbatch can meet the requirements of users through product formula design. (2) Flame retardant masterbatches (including halogen-free and halogen-free) are customized according to users, taking into account the national and international fire-retardant regulations of fire-retardant products and the requirements of environmental protection. (3) The masterbatch is dust-free and can be used directly. It contains not only well dispersed flame retardants, but also other additives required by plastics (such as stabilizers, processing aids, etc.). The industrialized production of flame retardant materials and products that meet strict flame retardant requirements, are compatible with environmental protection and at reasonable prices is still a goal of the flame retardant industry

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