Natural grass is not flammable, but artificial turf made of polyethylene or polypropylene, the molecular chains only carbon and hydrogen are two elements in high temperature, fever, discharge when the discharge is easily cause a fire, the limiting oxygen index was only 17.4, there is a big security risk. Although the flame can be mitigated by adding a certain extent, but there are many drawbacks, such as adding accelerators BPP, the raw material will add a pungent odor; aliphatic halogenated flame retardants added precipitation phenomena occur . Currently, the use of flame retardants can cause physical and mechanical properties of the original product and electrical performance degradation.
Economic costs:
Artificial turf and natural grass is irreplaceable and the respective merits of different demands exist in quite a long period of time, both will continue to coexist with development.
 From start to build a natural lawn, complete pruning, irrigation, fertilization and other routine maintenance side of sustainable use, in actual use, typically 2-4 years that need to be updated. Artificial turf in the life of 8 to 12 years, but the high construction costs, use should also complete the necessary conservation areas, periodically remove surface debris, sweeping uniform filling to make stem erect, comprehensive examination year-end work, hot need to first before watering cool seasons. Artificial turf if not curing, using the same quality will decline rapidly, must be corrected without artificial turf conservation awareness.
Durable strength and diversity of uses:
Artificial turf does not exist the problem of frequency of use in practical applications, the basic all-weather use, but also to other sports such as baseball program to use. Or some group activities can be organized in a major exhibition on the artificial turf, but it should be noted that prolonged heavy overburden pressure may cause irreparable damage to the floor surface appearance.
Natural grass can withstand the intensity of use is limited, informal soccer game held not more than five times a week is usually encountered rain and snow is best postponed, the need for conservation immediately after the game. While natural grass is not suitable for non-game activities too, such as large-scale public events, etc., which cause damage to turf is great.