Bus arson cases, bus deflagrations, collisions, explosions and burning of trucks and other news events often affect our nerves. Although it is difficult to prevent arson, but why will the bus easily become the target of criminals? To some extent, bus fire has exposed the weakness of bus fire prevention in China.
There are many reasons for bus fire, and one of the important reasons for casualties and property losses is that the decorative materials in the bus can not meet the flame retardant requirements, which promotes the spread of the fire. Although it is a good flame retardant materials configuration, also can't stop the deflagration of gasoline, but it can suppress deflagration continue to burn after car inner decoration, delay the car's own secondary deflagration combustion engine oil, for passengers to set aside enough time to escape, coach on flame retardant trim materials configuration is helpful to reduce the harm of all kinds of emergencies.
At present, flame retardant products have become an indispensable safety barrier in modern life. Developed countries, such as Europe, America and Japan, have very strict mandatory flame retardant standards in the application field of flame retardant treatment, requiring the use of flame retardant materials, flame retardant polymer materials account for about 8% of all polymer materials. However, the popularization and promotion of flame retardant materials in China has not received enough attention, flame retardant polymer materials accounted for less than 1% of all polymer materials, the reason is that the flame retardant laws and regulations in various fields are not perfect or flame retardant standards are low.
As the progress of macromolecule material, all sorts of plastic products become the necessaries of common people household and public place, on public transport, chair, interior, bar, armrest, billboard all is not plastic made. These products are flammable polymer materials, if not flame retardant treatment, will bring fire hazard.
Our country bus fire safety standard is very short. The flame retardant standard for interior materials commonly referred to in the field of passenger cars is the national standard "Combustion Characteristics of Automotive Interior Materials" (GB8410-2006) issued in 2006, in which there is only one requirement for the flame retardant performance of all automotive interior materials, that is, the horizontal combustion speed is not more than 100 mm/min under relevant test conditions. This threshold is not high, and most thermoplastics can be met without any flame-retardant treatment.
Expert proposal, to improve the fire performance of passenger cars at present in our country, of structure design, the interior of the bus should be safe evacuation and fire extinguishing installation materials and products, strict technical requirements, especially improve the bus interior materials and products of combustion performance level, increase the combustion value, the heat release rate, material combustion smoke density rank, material burning smoke toxicity and other technical requirements, Amend or supplement the current GB8410 "Combustion Characteristics of Automotive Interior Materials" as soon as possible.
China's passenger car carrying capacity, much higher than Europe and the United States, especially in the peak hours or tourist cities. When we draw lessons from foreign fire standards and regulations, we should consider China's actual national conditions. China's bus fire standards should not only keep up with European and American countries, but also higher requirements than European and American countries.
Content from the Internet