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Time: 2017-02-17

Beijing, April 24, 2015 in Beijing, the end of the 2015 international symposium on flame retardant (BFR2015) news: new urbanization will become one of the main drivers of China's economic growth, resulting in the fire safety situation has become more serious, the wide application of flame retardant will enhance the level of fire safety in the city from the source. At the same time, urbanization will also inject impetus into the development of flame retardants in China, especially polymerization flame retardants that are environmentally friendly and efficient.

Urbanization brings new fire hazards

Zhou zhengmao, secretary general of the China fire retardant society, said that the increase in urbanization rate will lead to the increase of building density and population density. At the same time, technological progress also allows more and more electrical equipment and electronic products to enter the home, and the fire hazard has increased significantly. A large number of all kinds of super-large scale industrial buildings and special civil buildings have sprung up, especially super-large space buildings, super-high-rise buildings, large underground buildings and inflammable and explosive places. These buildings are of huge scale and complex structure, containing a large variety of combustibles and a large number of people, and are very densely populated, making it extremely easy for large-scale three-dimensional fires to occur. This is a very important reason for the increase in the number of serious and very large fires and the increase in the number of group death and group injury fires.

According to statistics from the fire control bureau of the ministry of public security, there were 125,000 fires in China in 2012. In 2013, the number increased to 388,000, more than tripling. That number rose to 395,000 in 2014. With the gradual increase of urbanization rate, the trend of increasing number of fires has emerged.

Fire retardant to build up the fire isolation zone

"In the face of more and more severe fire situation, in addition to strengthening management, but also must rely on advanced scientific and technological means, from the source to reduce fire hazards, the spread of flame retardants is one of the most important means to build a passive fire protection system. Zhou zhengmao said.

The contribution of flame retardants to fire safety cannot be underestimated. Studies in Europe, the United States and India have shown that flame retardants in upholstered furniture can slow fires and provide people with valuable escape time, zhou said. The European commission estimates that the use of flame retardants has reduced fire deaths in Europe by 20% over the past decade. In the asiana air crash in San Francisco in July 2013, 304 of the 307 passengers were able to escape, thanks to the extensive use of flame retardant materials in the body, avoiding more casualties. When NBC took stock of the 2013 *** news, it listed the use of flame retardant materials in aviation as the top application.

Zhou Zhengmao says, fire retardant in fire safety play a role of source control are widely accepted in the world, Europe and the United States, and other developed countries and regions in some key application areas, such as furniture, electrical appliances, electronics, textiles, etc.) have a very strict standard of mandatory flame retardant, request must use flame retardant materials, the current European and American countries have flame retardant properties of polymer materials accounted for 15% ~ 20% of all the furniture. "Undoubtedly, the reasonable application of flame retardants is the most important technical means to ensure fire safety, and China's urbanization cannot be separated from the full support of the flame retardant industry. "Compared with developed countries, the proportion of flame-retardant polymer materials in China is less than 2 percent," zhou said. "There is a lot of work to be done in terms of building regulations, improving standards, developing new products and marketing.

Convergent products are the way to go

Although there is still a big gap between the application scope of flame retardant materials in China and that in developed countries, due to the influence of some extreme environmentalism, there are many prejudices against flame retardants in the society, among which "brominated flame retardants are poisonous and harmful" is the representative viewpoint of ****.

Qian lijun, general secretary of the strategic alliance for technological innovation of China's flame retardant industry, said: "flame retardants are like other chemicals. There is no international regulation that includes all brominated flame retardants in the list of prohibited substances, and there is no international regulation that includes halogen-free flame retardants in the list of exempted substances. In fact, of the dozens of brominated flame retardants, only hexabromocyclododecane products are currently listed as having pops. "There is no scientific evidence that the vast majority of other brominated flame retardants pose risks to the environment and human health when used.

"The sustainable development direction of flame retardants should be high molecular weight polymerized flame retardants, rather than bromine-free or halogen-free flame retardants. In recent years, many brominated flame retardants have been successfully developed at home and abroad. This kind of flame retardant has the characteristics of stable chemical properties, no migration, no precipitation, etc., the environmental performance is more excellent, is recognized as the future development direction of flame retardant. At present, China has successfully developed and commercialized a variety of brominated ethylene oxide resin, brominated polystyrene, butylbenzene bromide copolymer, these products have been widely used in electronic appliances, construction and other fields. Qian lijun told reporters.

Zhou Zhengmao analyzes the rules of the world's major chemical control status of flame retardant, including remobilised convention, unified global chemical classification and labelling system (GHS) and eu REACH regulation and the RoHS directive, the conclusion is worldwide, the laws and regulations restrict or ban is aimed at a specific molecular structure of chemicals rather than a class of chemicals such as bromine flame retardants and phosphorus flame retardants.

"We believe that there are three conditions for the sustainable development of flame retardants: one is non-pbt (persistence, bioaccumulation and toxicity) and non-cmr (carcinogenic, mutagenic and reproductive toxicity); Second, the whole life cycle has little impact on the environment. Third, to meet the requirements of relevant regulations and product performance requirements. A flame retardant that meets these three conditions is a viable product.