Automotive interior lining flame retardant process is concerned about, for driving safety to build a strong line of defense

     At a time when the automobile industry is booming, consumers' concern for automobile safety is increasing day by day. As a key part of automobile interior construction, the flame retardant performance of interior lining has become an important factor in safeguarding vehicle safety and guarding the lives of occupants. In recent years, automobile fire accidents occur frequently at home and abroad, and the relevant statistics are alarming: about 30% of automobile fires are triggered by the combustion of interior materials. This serious situation makes the research and development and application of flame retardant technology for automotive interior lining imminent.China shenghong Automotive interior lining suppliers

    Flame retardant technology for automotive interior lining is a series of technical means to enhance the flame spreading ability of interior materials and reduce their combustion characteristics through careful selection of materials, skillful design of structures or specific post-treatment. With the increasingly stringent safety regulations, quality flame retardant technology is not only a necessary condition for vehicle manufacturers to comply with production, but also a “lifeline” for occupants to escape at critical moments. In the event of a fire outbreak, an interior lining with excellent flame retardant properties can effectively slow down the spread of fire and gain more valuable escape time for the occupants.

   At present, the industry's mainstream flame retardant process is rich and varied. Additive flame retardant process is easy to operate, cost-controllable, and the flame retardant is evenly mixed into the interior lining material, which can be widely applied to all kinds of materials. Among them, organic flame retardants are highly effective, but halogenated flame retardants are gradually limited in application due to the release of toxic and harmful gases during combustion; phosphorus flame retardants are emerging with their environmental advantages. Inorganic flame retardants such as aluminum hydroxide, magnesium hydroxide, etc., non-toxic, non-smoke, the price is known, but when adding a larger amount, may have a certain impact on the mechanical properties of the material and processing difficulty.Automotive interior lining manufacturers in China
    Reactive flame retardant process is a unique way to integrate flame retardant monomers into the molecular chain of the interior lining materials, giving the materials inherent lasting flame retardant properties, and the impact on the original properties of the materials is minimal. For example, the introduction of phosphorus-containing and bromine-containing flame-retardant monomers in the synthesis of polyester, or the addition of flame-retardant chain extender and polyol in the preparation of polyurethane, all of which can make the interior lining obtain stable and reliable flame-retardant properties.

    For the molded interior lining, impregnation and coating methods are used to make the flame retardant closely adhere to the surface of the material or penetrate into the interior. The impregnation method is suitable for fabric interior lining, allowing the material to fully absorb the flame retardant after drying and curing; the coating method can flexibly adjust the coating thickness according to different flame retardant needs, and is widely used in automobile roofs, carpets and other interior parts.
    Material characteristics, flame retardant type and dosage, processing parameters, etc., are important factors affecting the effect of flame retardant process. The affinity and adsorption ability of different materials to flame retardants varies, so car companies need to choose the appropriate flame retardant process and flame retardant according to the material characteristics. The type of flame retardant directly determines the effectiveness of flame retardant, and the amount of flame retardant also needs to be strictly controlled, too little can not meet the standard, too much will damage the other properties of the material, it must be after a lot of experiments to determine the best ratio. In addition, the temperature, time, pressure and other parameters of the process will also significantly affect the flame retardant effect, a slight deviation may lead to the failure of the flame retardant or fixation.
    In order to ensure that the flame retardant performance of automotive interior lining meets the standard, countries and regions around the world have introduced strict testing standards. The U.S. FMVSS 302 standard clearly stipulates the upper limit of horizontal burning speed of interior materials; the European ECE R118 standard is from the combustion characteristics, smoke density, toxicity and other dimensions for consideration; China's GB 8410 - 2019 standard also puts forward stringent requirements on the horizontal combustion characteristics of interior materials, including the burning speed limit and the self-extinguishing time requirements.
    Looking ahead, the flame retardant process for automotive interior lining will make great strides towards green, multi-functional integration, intelligence and precision. With the concept of environmental protection, non-halogen, low smoke, non-toxic flame retardants and processes will become the mainstream of the industry, such as silicone, bio-based and other new environmentally friendly flame retardant research and development has become a hot spot. At the same time, the flame retardant process will also be anti-bacterial, anti-static, anti-fog and other functions of the depth of integration, to meet the increasingly diversified consumer demand for automotive interiors. With the help of computer simulation, big data analysis and other cutting-edge technologies, flame retardant process parameters will be accurately optimized, intelligent flame retardant processing equipment will also be put into application, significantly improving production efficiency and product quality and stability.Automotive interior lining wholesales