Many people have heard of flame retardant PP plastic materials that are applied to the above appliances, in fact, this is only an application of flame retardant PP plastic only. In view of its fire-retardant properties, in fact, there are many areas where it's useless, here to talk about the application of flame retardant PP in the car.
As we all know, the car in the whole process of operation, the highest temperature in addition to the tire, the engine is. Engine material is a very special production of metal materials, the material used around it is also relatively high requirements, the material must not only have a certain flame retardant, but also have a high light-off temperature, to prevent fire. Automotive materials R & D engineers initially tried a lot of materials are not successful, and later found the effect is very good after the use of flame-retardant PP plastic, there are some use of nylon materials, the first flame retardant PP plastic has a relatively high melting point, no Halogen flame retardant PP good flame retardant properties, a higher light-off temperature, can reach 850 ℃ above, so even if the engine temperature is high, it will not cause a fire and reduce the probability of accidents. Second, the low thermal conductivity of flame retardant PP plastic, although the engine temperature is high will not affect the normal operation of other parts around, will not cause adverse impact on the operation of the car. In addition to the engine, the other parts of the car are flame retardant PP plastic applications, different car brands and models where the application is not the same, such as car relays.
In addition, the bus, as an important means of transport in the city. In recent years there have been many spontaneous bus occurrences and man-made arson incidents in the country and the results are very heartbreaking. Bus as a crowded place, often become the main place of criminals committing crimes, this is one of the reasons. In addition, China's bus interior materials have poor flame retardance and even no flame retardance. In particular, products such as plastics and textiles have a low level of flame retardancy and are likely to cause a large number of casualties after the fire and the impact is very poor. Although there are relevant laws, but the standard is low, the implementation is not in place, China promulgated in 1998, "Fire Act" and a series of laws and regulations formulated in support of the provisions of the public places and transport and many other areas must use flame retardant Fireproof Materials. GB8410 requirement is "the combustion characteristics of interior materials must meet the burning speed is not big 100mm / min". GB13094-2007 "bus structural safety requirements" also require the compartment wall, the top, both inside and outside decorative parts should be flame-retardant materials, the flame retardant should be consistent with the provisions of GB8410. This threshold is very low, the flame retardant properties of automotive interior materials only a very simple requirement, simply not enough to play the role of fire prevention, so this standard needs to be revised and improved urgently.
The use of flame retardant materials and products to prevent personal injury and the occurrence of a vicious fire is one of the effective methods and measures for public transport in advanced countries over the years. Foreign experience and regulations show that when the mandatory use of various types of products in public places flame retardant requirements, especially halogen-free flame retardant requirements, the probability of a significant decrease in the incidence of fire, property damage and casualties also further cut back. Foreign public transport fire retardant to meet the two conditions in order to achieve clean and environmental protection: First, the material to achieve halogen requirements, and second, fire retardant shell material density requirements, but the domestic public transport does not meet these two conditions. Halogen-free flame retardant material reflects the concept of science, rationality, greenness, humanity, is to adapt to the future development of new energy sources, and only in the promotion of public transportation travel process using environmentally friendly, pollution-free, safe public transport, In order to make the entire public transport system green, environmentally friendly and convenient, make it more scientific and rational.
