Hydroxyl and amino modified antiknock composite material and preparation method thereof

Abstract

The invention discloses a hydroxyl and amino modified antiknock composite material and a preparation method thereof, and belongs to the technical field of anticorrosion antiknock materials. Amino and hydroxyl are introduced into a composite material formed by carbon nanotubes and polyaniline, and in the process of introducing the amino and hydroxyl into the composite material formed by the carbon nanotubes and polyaniline, secondary doping and dedoping of polyaniline can be achieved. Then a functionalized nanocarbon and secondarily-doped polyaniline composite material is mixed with a polyurea elastomer material. A carbon nano tube and polyaniline composite material is functionalized in advance, and then the functionalized carbon nano tube and polyaniline composite material is connected into an anti-explosion elastomer material in a physical dispersion and chemical reaction combined mode. The defect that the material is poor in low-temperature flexibility due to the fact that the hard segment content in a resin system is increased to reinforce the material is overcome. The antiknock composite material can be used for improving the gas explosion impact resistance of petrochemical enterprise buildings, and the explosion impact damage of the petrochemical enterprise buildings can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion and anti-explosion materials, in particular to an anti-explosion composite material modified by hydroxyl and amino groups and a preparation method thereof. Background technique [0002] In recent years, the explosion-proof problem of personnel-concentrated places such as control rooms of petrochemical enterprises has attracted widespread attention. Polyurea elastomer has extremely high adhesion to substrates including metals and non-metals. After proper substrate treatment, it can be well combined with most materials, such as concrete, steel and aluminum, forming a layer and sandwich-like composite structures. [0003] Accidents in chemical companies in recent years have shown that Vapor Cloud Explosion (VCE) accidents caused by equipment leakage are extremely destructive, often causing a large number of casualties in concentrated places near the device. However, only a few of Sinopec's n...

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Problems solved by technology

However, if too much filler is added, the explosion-proof material will easily cause the filler to separate from the resin under high-speed impact, which is manifested by a sharp drop in the strength of the coating film under high-speed impact; although increasing the hard segment content of the resin increases the strength of the material, its hardness is also greatly improved. As a result, the low-temperature flexibility of the material deteriorates, and the material loses the effect of anti-ballistic and explosion-proof in low-temperature environments