Polypropylene is a large amount of material, ranking first in the five general-purpose plastics. Due to its excellent overall performance and high cost performance, it is widely used in automobiles, home appliances, electronic products, composite materials, etc. With the development of technology and improvement of people's safety requirements, the flame retardant of polypropylene has become a necessary performance for its application in many fields. Currently, there are many flame-retarded polypropylene materials available on the market, of which the mainstream product that meets the requirements of green environmental protection is expanded flame retardant polypropylene. However, at present, the amount of the intumescent flame retardant required for achieving the UL-94 flame retardancy of the polypropylene is relatively high, and it needs at least 20 to 30 wt%, and usually 25 wt% or more. The addition of a high content of flame retardant will inevitably cause deterioration of the mechanical properties, thermal stability, etc., and cannot meet the requirements of the increasingly developed downstream technologies and products. In addition, the high added amount also leads to an increase in material costs, which is not conducive to the promotion of flame-retardant products. Therefore, the development of highly efficient flame retardant polypropylene technology is an inevitable way to solve this problem. Li Juan, a researcher in the halogen-free flame retardant team of the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, adopted a simple and easy method to introduce organic-inorganic hybrid catalysts in the intumescent flame retardant system of commercial products. Take into account compatibility. The study found that the introduction of the catalyst in the expanded flame-retardant polypropylene can greatly increase the flame-retardant efficiency, and the content of the flame-retardant tested by the UL-94 V0 grade of PP is reduced from 25wt% to 15wt%, which is currently international Intumescent flame retardant system is the most efficient. Moreover, by adjusting the structure of the organic and inorganic portions of the catalyst, the compatibility of the catalyst with the polymer can also be easily adjusted, so that the mechanical properties are not lost when excellent flame retardant properties are obtained. This work has for the first time broken the limitation that the addition of commercial intumescent flame retardant is greater than 25wt% to play a good flame retardant effect. The development of the high-efficiency intumescent flame retardant system has been promoted one step and has strong application value. Relevant research results were published in the British Royal Society J. Mater.Chem. A (2013, 1) and RSC Adv. (2014, 4); applied for two patents (ZL201310315174.2, 201310314817.1), due to strong innovation, already 1 Item is authorized. This study was funded by the National Natural Science Foundation of China. The Emergency Sensor Light is specially designed for ceiling Mounted emergency lighting and with Microwave Sensor. from 12inch 18W to 18inch 36W. Dimmable lighting, Waterproof and Dustproof avialable. Widely using for Office and Household. Automatically light at once when buildings main power outage. It is more than 3 hours emergency time. When Main power is on, it use as an normal sensor lighting Led Emergency Sensor Light,Emergency Light Sensor,Microwave Sensor Emergency Light,Emergency Sensor Light Foshan Nai An Lighting Electric Co.,ltd , https://www.naipslighting.com