Shanghai fire warning flame retardant materials to promote speed

Sinochem dispatch of new Shanghai "11 · 15" especially big fire caused dozens of people were killed, hundreds of families. According to this, the expert inside course of study, said in an interview that the catastrophic fire again highlights the importance of flame retardant building materials. At present, the fire retardant plastic in the plastic of less than 1/10 of the abroad, from the source control fire hazard, must be flame retardant materials, it is imperative to strengthen the application of flame retardant materials to promote.

Zhu Liping, deputy director of the ministry of public security fire department said, through the investigation of the scene of the fire, find out the cause is preliminary unlicensed welders peccancy operation ignition polyurethane foam insulation materials, coupled with the crowded inside the building, fuel, superposition of multiple factors such as difficult to evacuate more together, the seeds of the rare in recent years, the fire.

Sichuan fire research institute of the ministry of public security fire department, deputy director of the Lu Guojian said that from the current fire statistics, fire cause of injuries is mainly the existence of a large amount of fuel in the public places and evacuation channel impeded and other reasons. If we can reduce the fuel content, reduce fire load, the flame retardant, low smoke, low toxic and non-toxic items such as appliances, decoration materials, furniture, can improve the level of fire safety from the source, even if there is a fire generally do not cause serious personal casualty and property loss.

Beijing institute of technology professor, secretary general of China flame retardant society Zhou Zhengmao says, along with the progress of the technology, the high polymer synthetic materials in the chemical building materials, electrical and electronic, household furniture, decoration materials and other fields has been widely used, but due to the high polymer material has a flammability, to fire safety also poses a challenge. The national institute of standards and technology association has done a survey: from 1975 to 1975, due to interior decoration and the introduction of a large number of combustible goods, fire escape time (from the room began to fire out of control state or a "flashover" time) from 17 minutes have dropped to 3 minutes, medium-sized room will be 5 ~ 10 minutes after the flashover completely engulfed by the fire. For this purpose, the flame retardant polymer materials arises at the historic moment, the world of a large number of research results show that the use of flame retardants is an important means to effectively reduce the fire hazard, it can reduce the flame propagation speed, after making the fire escape time lengthen 15 times. Many instances prove that in the world, as well as the use of flame retardant materials save a lot of life. In August 2005, when an air France A - 340 passenger plane crashed on fire due to lightning strike in Toronto, Canada, 309 passengers and crew was miraculously all survived. The federal aviation administration officials explanation is made about the matter, flame retardant material in the plane crash accident, it helps to slow the spread of flame and smoke for passengers and crew provides enough time to escape. In order to improve the coefficient of fire prevention, Europe and the United States and other developed countries in building materials, electrical and electronic components and other products of the flame retardant have strict requirements, its flame retardant plastic in the plastic material the proportion is as high as 20% ~ 30%.

Is flame retardant producer in China, at present there are more than 1000 domestic flame retardant production enterprises, more than 20, ten thousand tons of annual production of flame retardant has become the second to the plasticizer plastics additives. Although the production and consumption is low, but most of the flame retardant with application products exported to foreign countries, domestic plastic products using flame retardants is not much, the current domestic flame retardant plastic dosage ratio is less than 3% in plastic material, with foreign gap is huge.

Zhou Zhengmao analysis, the reason mainly has two aspects, one is the material cost is high. Normally the cost of the flame retardant plastics will be 20% ~ 30% higher than ordinary materials, the current market competition is intense, reduced costs means that the market competition, unless the customer request, otherwise the enterprise generally will not take the initiative to add flame retardant. Second, laws and regulations is not sound regulation does not reach the designated position, also make it easier for flame retardant materials and the popularization. On March 1, 2007 in China began to implement mandatory national standards of the flame retardant products in public places and component combustion performance requirements and identity ", but standard regulation involves the range, location, regulatory difficulties, unable to reach the designated position, implementation is not ideal.

"The extension and application of flame retardant materials must be sped up." Zhou Zhengmao advice, as soon as possible to improve the flame retardant products in public places and component combustion performance requirements and identification, revision of the work and the supporting measures, regulatory agencies to strengthen supervision, make the laws and regulations play its proper role.