Lightweight composite organic heat preservation and sound insulation prefabricated board for fabricated buildings and preparation method

Abstract

The present invention provides a lightweight composite organic heat preservation and sound insulation prefabricated board for fabricated buildings. The lightweight composite organic heat preservationand sound insulation prefabricated board for the fabricated buildings comprises two organic sound absorption boards, a damping silicone rubber layer, two fiber cement pressure plates, wherein the twoorganic sound absorption boards are made of wood organic matter, white rot fungus hyphae and foaming agents; the damping silicone rubber layer is arranged between the two organic sound absorption boards, and is used for being connected with the organic sound absorption boards and cutting off the transmission of a sound wave; and the two pieces of fiber cement pressure plates are arranged on the outside side of the organic sound absorption boards. According to the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the wood organic matter is decomposed by wood rot fungi to produce dense pores, the covering effect of wood rot fungi hyphae is used, so that the organic sound absorption boards have excellent sound-absorption effect on the basis of meeting the use requirements of strength characteristic. The invention further provides a preparation method for the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the preparation process is simple, and the production cycle is short.

Description

technical field [0001] The invention relates to the technical field of organic sound-insulating prefabricated building materials, in particular to a light-weight composite organic heat-insulating and sound-insulating prefabricated board for prefabricated buildings and a preparation method thereof. Background technique [0002] More than 80% of the urban residences in our country have unqualified sound insulation effects. Most people have the experience of poor sound insulation in their houses. For example, when they need to rest at night, they hear the neigh The sound of footsteps, the sound of flushing the toilet, the vibration of the faucet, and the sound insulation inspection faltered. Not only residential buildings, but also office, teaching, hospital, sports and other buildings have corresponding requirements for sound insulation. The noise of public corridors or adjacent rooms in many hotels often affects the rest of passengers in the room. A good sound insulation env...

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Problems solved by technology

Sound insulation materials are generally made of high-density and dense materials, such as lead and concrete, but these materials have problems such as difficult molding and heavy unit mass, which limit their application.

For example, Chinese patent CN 104231637 A discloses a glass bead damping silicone rubber sound insulation material. In this invention, glass beads are filled in the damping silicone rubber, which reduces the weight of the damping silicone rubber material and further improves the sound insulation performance of the material. , to a certain extent, solves the problem of heavy quality of the existing high-density sound-absorbing materials, but its preparation process is very complicated, and a large amount of rubber and additives are used, the production cost is high, and it is not suitable for large-scale promotion

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