Ceramsite acoustic board and preparation method thereof

Abstract

The invention relates to a ceramsite acoustic board and a preparation method thereof. The preparation method comprises the following steps: preparing a resin mixed bonding solution by adding a curingagent accounting for 75-85 wt% of the mass fraction of thermosetting resin, an accelerant accounting for 1-3 wt% of the mass fraction of the thermosetting resin and a thinner accounting for 60-70 wt%of the mass fraction of the thermosetting resin into the thermosetting resin and stirring, dispersing 0.3-3 wt% of graphene oxide powder equivalent to the mass fraction of the resin mixed bonding solution into 100 ml of solvent, performing ultrasonic treatment to obtain graphene oxide dispersion liquid, adding the graphene oxide dispersion liquid into the resin mixed bonding solution, and stirringto obtain a mixed molten liquid, adding the mixed molten liquid into a certain amount of mixed aggregate, stirring to obtain a mixture, pouring the mixture into a mold, paving the mold with the mixture, carrying out vibration compaction, carrying out a reaction for a period of time at a certain temperature to obtain a sound absorption plate base layer, and carrying out hydrophobic treatment on the outer side of the sound absorption plate base layer, so that the outer surface of the sound absorption plate base layer is coated with the hydrophobic layer, and the ceramsite sound absorption plateis obtained.

Description

technical field [0001] The invention relates to engineering noise reduction materials, in particular to a light-weight and high-strength ceramsite sound-absorbing board with good hydrophobicity and a preparation method thereof. Background technique [0002] In recent years, noise pollution has brought great troubles to people's lives. Traditionally used sound-absorbing materials are generally fiber-based porous sound-absorbing materials, such as mineral wool, rock wool, centrifugal glass wool, etc. This type of fiber-based sound-absorbing materials There are problems such as environmental pollution in the production, use, and recycling links; in addition, during the use process, the sound-absorbing material will sink due to moisture and pulverization of the fiber, which will reduce the acoustic performance. [0003] Therefore, a new type of ceramsite sound-absorbing panel has been developed to replace fiber-based sound-absorbing materials. However, the currently used ceramsi...

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Problems solved by technology

[0002] In recent years, noise pollution has brought great troubles to people's lives. Traditionally used sound-absorbing materials are generally fiber-based porous sound-absorbing materials, such as mineral wool, rock wool, centrifugal glass wool, etc. This type of fiber-based sound-absorbing materials There are problems such as environmental pollution in the production, use, and recycling links; in addition, during use, the sound-absorbing material will sink due to moisture and pulverization of the fiber, which will reduce the acoustic performance

[0003] Therefore, a new type of ceramsite sound-absorbing panel has been developed to replace fiber-based sound-absorbing materials. However, the currently used ceramsite sound-absorbing panels still have many disadvantages, such as: low strength, easy to be damaged during removal or transportation; The sound absorption performance is poor, which cannot meet the noise reduction requirements in the daily noise environment; the water repellency is poor, and the water absorption is serious, which affects the service life

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