We can often see the application of polytetrafluoroethylene boards on the Internet and in building materials procurement for the construction of building stairs. Polytetrafluoroethylene stairs are mainly used in various types of building stairs, and are generally fixed with concrete. In this article, let's talk about the special PTFE board for stairs. Why can it be used as a special material?
PTFE sheet has high lubricating properties, high proportional elongation, high compression resistance and high strength among known materials. Taking advantage of these characteristics, a shock-absorbing isolation layer is set at the movement of the stair node as a connection. When the seismic wave comes over, the stair and the stair board can move, so as to avoid the building's swing force being loaded on the stair, causing the stair to break and causing casualties. At the same time, the stair pad can quickly bear most of the energy of the seismic wave, so as to achieve transformation, consume the destructive effect of the seismic wave energy on the stair structure, and minimize the economic loss. In the event of an earthquake, the sliding staircase can be used as an independent unit to vibrate at a small amplitude, rather than violently vibrating with the main building or the ground, thereby reducing the destructiveness of the earthquake, ensuring smooth safe passages during earthquakes, and enabling people to evacuate in time .
The F-C bond molecular structure of polytetrafluoroethylene makes it relatively stable relative to other substances, and its friction coefficient can be at least 0.04, which is a product with a very small friction coefficient among all substances. In the architectural design of the stairs, the designers thought about how to choose the appropriate material for the sliding support for the stairs, so they chose the teflon board for the stairs. Teflon board for stairs is the requirement of social development and progress. With the development of national economy and technological progress in recent years, the country has become more and more prosperous and strong, and the consideration of the safety of ordinary people has become more and more comprehensive. The hazards of earthquake disasters are sometimes unpredictable, and the awareness of various preventions is constantly increasing. The design of PTFE for stairs is to consider the effectiveness of the safe passage of stairs when earthquakes come.
Everyone knows that high-rise buildings cannot take the elevator when an earthquake strikes. This is familiar to everyone. To escape from a disaster, stairs have become the choice of most people. In the face of emergencies, PTFE boards for stairs are not used with the main building or the main building. The earth vibrates violently at the same frequency together, thereby reducing the damage of the stairs to the earthquake, and the stairs use the characteristics of the small friction coefficient of the PTFE plate to become a sliding bearing during the vibration, so that before the house faces a small vibration or collapses, Stairs collapse with a delay, which increases the chance of escape.
In general, PTFE itself has excellent sliding properties (minimum coefficient of friction), excellent compressive resistance, reliable strength and a large proportion of elongation. On the other hand, the special PTFE sheet for stairs also It complies with the requirements of national standards for sufficient earthquake resistance of building stairs to ensure the safety of people's lives.
