Expanded perlite fire-proof composite core plate

Abstract

The invention provides a preparation technology of an expanded perlite fire-proof composite core plate, which aims to solve the process technical problem that perlite plates in market are small in size, not waterproof and fragile due to poor intensity. The expanded perlite fire-proof composite core plate is characterized in that an upper-layer non-woven fabric and a lower-layer non-woven fabric are arranged, a wire mesh in the middle, expanded perlite, high temperature resistant inorganic aggregate and a high temperature resistant inorganic binder are used as main materials, and the inorganic environmental-friendly composite core plate is the expanded perlite fire-proof composite core plate which is formed through a complete set of processing steps and has A1 level of fire-proof performance, good intensity (compression strength: 0.35-0.8MPa), density of 260-300Kg / cubic meter, hydrophobic rate of 92%, bulking factor of smaller than or equal to 0.25 and heat conductivity of smaller than or equal to 0.046.

Description

technical field The invention relates to a fireproof composite core board, in particular to an expanded perlite fireproof composite core board. Background technique Existing technologies currently on the market: mineral wool, polystyrene (EPS), polyurethane (PU), extrusion (XPS), paper honeycomb, aluminum honeycomb and other composite core boards. The disadvantage of the existing composite core board is the harm to the environment and the human body: mineral wool is the most harmful to the human body and the environment, and the mineral wool itself is not poisonous, and its greatest harm comes from its fibers, which are very small Almost invisible fibers, when these tiny fibers are released, they can float in the air for a long time, be inhaled into the human body and attach and deposit in the lungs, causing lung diseases. Exposure to asbestos fibers can cause the following diseases: lung cancer, mesothelial cancer, pleural or peritoneal cancer, asbestosis. And its economy...

AI Technical Summary

Problems solved by technology

According to the above problems, the present invention provides an expanded perlite fireproof composite core board. The purpose is to solve the technological problems of small pieces, fear of water, and poor strength and fragility of perlite boards in the market. The structure is two layers of non-woven fabrics. , the middle barbed wire and expanded perlite, high-temperature-resistant inorganic aggregate, high-temperature-resistant inorganic binder as the main material, the inorganic environmental protection composite core board processed through a whole set of processes, the fire performance is A1 level, and the strength is good (compressive strength 0.35 -0.8MPa), density 260-300Kg / m3, water repellency rate 92%, wet expansion rate (%) ≤ 0.25, thermal conductivity ≤ 0.046 expanded perlite fireproof composite core board

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