Polytetrafluoroethylene plate has high lubricating performance, high proportional tensile rate, high compression and high strength in known materials. Using these characteristics, a damping isolation layer is set at the moving part of the stair node as a connection, so that the stair and the stair slab can move when the local earthquake wave comes, so as to avoid the building swing force loading on the stairs, causing the stairs to break and casualties. At the same time, the stair base plate can quickly bear most of the energy of seismic wave, so as to achieve transformation, consume the destructive effect of seismic wave energy on stair structure and minimize economic losses. In case of an earthquake, the sliding staircase can vibrate alone and in small amplitude as an independent unit, rather than violently with the main building or the earth, so as to reduce the destructiveness of the earthquake, ensure the smooth safety passage during the earthquake, and enable personnel to evacuate in time.
The F-C bond molecular structure of polytetrafluoroethylene makes it more stable than other substances, and its minimum friction coefficient can reach 0.04, which is a product with very small friction coefficient among all substances. In the architectural design of stairs, designers thought of how to choose the appropriate material of sliding support for stairs, so they chose PTFE board for stairs. Polytetrafluoroethylene 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 is becoming richer and stronger, and more and more comprehensive consideration is given to the safety of ordinary people. The harmfulness of earthquake disasters is sometimes unpredictable, and all kinds of awareness of disaster prevention are increasing. The design of Teflon for stairs is to ensure the effectiveness of stairs as a safe passage in the event of an earthquake. As we all know, elevators cannot be used in high-rise buildings when the earthquake comes, which is familiar to everyone. In order to escape in the face of disaster, stairs have become the choice of most people. In the face of emergency, Teflon plates for stairs do not vibrate violently at the same frequency with the main building or the earth, so as to reduce the damage of the earthquake to their stairs, In the vibration, the stairs use the small friction coefficient of PTFE plate to become a sliding support, so that the stairs will delay the collapse before the house faces small vibration or collapse, which increases the chance of escape.
In general, Teflon itself has excellent sliding performance (minimum friction coefficient), excellent compression resistance, reliable strength and large proportion of tensile rate. On the other hand, Teflon plate for stairs also complies with the requirements of national standards for sufficient seismic capacity of building stairs, so as to ensure the safety of people’s lives.
Post time: Apr-15-2022