A kind of high-damping asphalt material for system vibration reduction and preparation method thereof

Abstract

The invention discloses a high-damping asphalt material for system vibration reduction, which comprises the following components in parts by mass: 100 parts of asphalt, 10-50 parts of liquid rubber, 5-25 parts of a solid plasticizer, 5-25 parts of resin and 10-50 parts of an inorganic filler. The high-damping asphalt material has low temperature sensitivity and high fluidity in a certain temperature range, can be greatly deformed, has high adhesion, and is particularly suitable for vibration damping systems with different loads, when combined with the steel spring, the vertical vibration of equipment at high and low frequencies can be effectively suppressed, and resonance caused by external vibration can be avoided. The preparation method of the product comprises the steps of: refining theinorganic filler, resin and the softened asphalt to uniform dispersion of the components, adding the liquid rubber and the solid plasticizer, and continuously refining the components until the components are uniform and the surface is free of particulate matter. The preparation method is simple and easy to operate, and the equipment has high versatility.

Description

technical field [0001] The invention belongs to the field of asphalt materials, in particular to a high-damping asphalt material for system vibration reduction and a preparation method thereof. Background technique [0002] With the development of modern industrial technology, people pay more and more attention to vibration control technology. Damping and vibration reduction is an effective method to control structural vibration. It generally uses the viscoelasticity of polymer materials. Under the action of alternating stress (such as vibration), the movement of molecular segments overcomes the resistance, and the deformation lags behind the stress. In the range of frequency and temperature, this hysteresis phenomenon is very obvious, and the hysteresis deformation movement means that a large resistance must be overcome, so as to convert the mechanical energy of external vibration into internal energy and play the role of vibration reduction. [0003] As a typical viscoela...

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Problems solved by technology

However, traditional asphalt damping materials mostly exist in solid form, mainly by filling a large amount of inorganic fillers to increase asphalt damping. The solid form determines that the deformation of asphalt is not large, and the dynamic performance is significantly affected by the ambient temperature and external excitation frequency. Affected by the time-temperature effect, the corresponding vibration reduction effect cannot be achieved, and there are certain application limitations

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