The thermal resistance, flame retardance, and smoke control mechanism of nano MH/GF/NBR composite material

摘要

In order to produce a rubber sealing material with decent physical and mechanical properties, heat resistance, and flame retardance, a nano MH/GF/NBR composite material was made by using nitrile butadiene rubber (NBR), glass fiber (GF), and nano magnesium hydroxide (MH). The physical and mechanical performances, heat resistance, and flame retardance of the composite material were investigated for different fractions of nano MH and GF. The results showed that nano MH reinforces the internal structure of the composite material. The bond strength between GF and the rubber matrix decreases with the increase in the amount of GF in the composite. The proportion of nano MH and GF can improve the physical and mechanical performances of NBR. The tensile strength, tear strength, permanent compression deformation, and hardness also increase. The nano MH/GF composite has good flame retardance, which improves the thermal stability of NBR. Additionally, the total smoke production of the composite material is reduced and the lifetime of the material is extended. The results established a foundation for further applications using the nano MH/GF/NBR composite material as a sealant.