In hot weather, as a means of daily transportation - automobiles, buses, the flame retardant performance is of utmost importance. Especially in recent years, there have been many incidents of spontaneous combustion of buses in the country, resulting in a large number of casualties. Since then, public transportation Flame retardant performance caused many worries.
Basically, the reason for the incident was mainly due to the poor flame retardant properties of the external materials of the bus, and some of them were not even flame-retardant, especially certain plastic and textile products.
With the development of science and technology, flame-retardant PP plastic came into being. In the past this plastic was often used in the field of household appliances, but now it is widely used in the transportation sector. According to the investigation, the use of flame-retardant PP plastic vehicle, its flame retardant effect It is much higher than the use of other materials for transportation. Therefore, the emergence of flame retardant PP plastic is undoubtedly a good thing for vehicles.
As we all know, during the running of a car, the highest temperature is where the non-motor is. The engine's production material is a very special metal material. Due to the particularity of the engine, it also has high requirements for the materials used around it. The material must not only have a certain degree of flame retardancy, but also have a high light-off temperature to prevent fire.
The characteristics and advantages of flame-retardant PP plastics just meet the requirements of the materials needed around the engine. First of all, this kind of plastic has a relatively high melting point. Among them, halogen-free flame-retardant PP has good flame-retardant properties. It is added with 8%-10% of mass powder in the extruder, its flame-retardant temperature can reach above 850°C, which can effectively reduce the probability of fire occurrence. Secondly, the flame-retardant PP plastic has lower thermal conductivity. Even if the engine is High temperatures continue to operate at high speeds, and people do not have to worry about the engine affecting other components or even the normal operation of the entire system.
In addition, in addition to the use of flame-retardant PP plastic in the engine, the other parts of the vehicle can also be seen in the shadow. For example, in the steering wheel, flame-retardant PP plastic polymer in the heat, the surface can generate a layer of uniform carbon Foam layer. This layer of foam has good flame retardant properties, can play a role in heat insulation, oxygen barrier, smoke suppression, and can prevent the formation of droplets.
It is reported that the use of flame-retardant materials and products to prevent the occurrence of fire is one of the effective methods and protective measures adopted by the state's public transportation for many years. China's Fire Protection Law states: 'The burning characteristics of interior materials must meet the requirements of burning. The speed is not 100mm/min. ' GB13094-2007 "Safety requirements for passenger car structure" also requires the inner wall, inner top, interior and exterior decorative parts should use flame retardant materials.
However, although there are clear regulations as above, there are also good flame-retardant PP plastics, however, traffic and fire incidents occur frequently. People pay insufficient attention to regulations and the traffic laws and regulations are too low, which will increase the probability of fire accidents. , For traffic safety, on the one hand, quite a few departments need to step up supervision. On the other hand, citizens should also raise awareness of safety precautions. In the use of vehicle materials, the use of flame-retardant PP plastics must be strongly advocated to make this a good flame retardant. Materials play their due role and make travel safer and more secure.