Sound-proofing heat-resistant expanded perlite and phenolic resin composite insulation board and preparation method thereof

Abstract

The invention discloses a sound insulation and heat-resistant expanded perlite phenolic resin composite insulation board, which is made of the following raw materials in parts by weight: polyaluminum chloride 1.3-1.6, silicon boron molecular sieve 2.6-2.9, concentrated ammonia water 5-6, attapulgite rod Soil 3-3.5, expanded perlite 55-57, phenolic resin 40-42, curing agent HMTA4-4.1, steel fiber 2-2.3, ethyl orthosilicate 10-11, appropriate amount of 85wt% ammonia water, appropriate amount of anhydrous ethanol, remove Ionized water 160-180, proper amount of n-hexane, nano-polytetrafluoroethylene 4-4.5, cumene peroxide 0.1-0.2, trifluoroethyl acrylate 3-3.5. By using polyaluminum chloride and concentrated ammonia water to modify attapulgite, the invention can improve the brittleness and water resistance of the thermal insulation material, and improve the sound absorption effect; by using the silicon boron molecular sieve, the heat resistance and sound insulation of the thermal insulation board are improved Effect.

Description

technical field [0001] The invention relates to the technical field of thermal insulation wallboards, in particular to a sound-insulating heat-resistant expansion perlite phenolic resin composite thermal insulation board and a preparation method thereof. Background technique [0002] Composite insulation materials (CompositeInsulationMaterials) are new materials that are uniformly composited by two or more insulation materials, usually referring to the composite of organic insulation materials and inorganic insulation materials, which have better performance than the original organic or inorganic materials. This paper makes full use of the advantages of abundant perlite mineral resources in Xinyang, uses expanded perlite (Expended Perlite, EP) and phenolic resin (Phenol-formaldchyde Resin, PF) as the main raw materials, and adds an appropriate amount of curing agent, toughening agent and hydrophobic agent. agent, hot-pressed under certain conditions, prepared into expanded p...

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Problems solved by technology

[0003] However, expanded perlite has a high water absorption rate and poor water resistance, which leads to large volume shrinkage and deformation of the thermal insulation mortar during mixing, and the thermal insulation performance of the product is reduced in the later stage, and the bonding strength with the matrix is ​​low, which affects the thermal insulation performance of the wallboard in the later stage.