Preparation of APP-free Oil-extended Halogen-free Flame Retarded SEBS/PP Thermoplastic Elastomer HU Zhi 1，2 (1. Chongqing Copolyforce New Materials Co, Ltd, Chongqing 401332, China; 2. Chongqing Research Institute Co. Ltd of China Coal Technology & Engineering Group Corporation, Chongqing 400037, China) Abstract：The flame retardant oil-extended SEBS/PP was prepared by adding an APP-free intumescent flame retardant (FR-1420). The effect of dosage on flame retardance and mechanical properties in SEBS/PP were studied. The thermal behaviors were evaluated by thermogravimetry analysis (TG). The results showed that the FR-1420 improved the vertical burning test level of SEBS/PP composites. A UL-94 V-0 grade was realized when 20 wt.% FR-1420 was added to the 3.2 mm SEBS/PP samples without oil addition...

Intumescent Flame retardants (IFR) is one of the research and development hotspots in the field of halogen-free Flame retardants in recent years. IFR is generally composed of acid source (dehydrating agent), carbon source (carbon forming agent) and gas source (foaming agent). Its principle is that acid source dehydrates carbon source during material combustion.At the same time, the gas source is decomposed by heat to release non-combustible gas, forming a foam carbon layer of heat insulation and oxygen isolation on the surface of the material, so as to achieve the purpose of flame retardant.Phosphorus-nitrogen expansion flame retardants are considered as the important development direction of halogen-free flame retardants, which have the characteristics of low smoke emission, less toxic gas generation and good flame retardant effect.Typical phosphorus-nitrogen flame retardan...

With the widespread application of polymers in fields such as construction, electronics, transportation, and communication, polymer flame retardant technology has also become a research focus. However, most flame retardants, when applied to plastic products, can affect the appearance and mechanical properties of the products, as well as problems such as difficulty in dispersion, processing, and high dust content. By preparing flame retardant masterbatch, the dispersibility of flame retardants in resins can be improved, the amount of flame retardants added can be reduced, the processing difficulty and cost can be lowered, and the impact of flame retardant addition on the mechanical properties of resins can be reduced, thus improving the working environment in the workshop. Therefore, improving the processing technology of flame retardant resin through masterbatch technology has become...

The fuel barrier PA6 material is developed for the fuel tanks of vehicles and equipment using small engines. Compared with traditional PA6, the fuel barrier performance and impact performance of the fuel barrier PA6 material have been significantly improved. The fuel tank made of fuel barrier PA6 material can meet the recently released and implemented<1.5g/m2 * d volatilization standard by the US Environmental Protection Agency (EPA) and California Air Resources Board (CARB), as well as domestic fuel tank emission standards. Compared with traditional fluorinated HDPE fuel tanks, fuel barrier PA6 fuel tanks do not cause environmental pollution and overcome the disadvantages of complex multi-layer fuel tank forming technology and high equipment investment. Its overall system cost is lower. For a long time, the domestic market for fuel barrier PA6 ma...

Polymer materials (plastics) are widely used in various fields of the national economy and people's lives due to their low density, corrosion resistance, and ease of processing. Throughout the entire lifecycle of plastics, volatile organic compounds (VOCs) and odors are produced, especially during plastic modification where new VOCs are often generated due to the introduction of additives and processing degradation. In the past few decades, many researchers have conducted extensive research on the VOC composition, low VOC treatment technology, and spray free treatment technology of plastics, achieving some good results, but still unable to meet people's requirements.   Chongqing Kejufu New Materials Co., Ltd. focuses on low odor and low VOC in plastic processing. Through self-made extrusion processing equipment and the use of self created multi-stage directi...