Preparation method of fireproof insulation board and adopted impregnating compound

Abstract

The invention provides a preparation method of a fireproof insulation board and an adopted impregnating compound. The preparation method of the fireproof insulation board comprises the following steps: 1) producing monofilaments and coating the impregnating compound; 2) acupuncturing to prepare a fiber mat; and 3) directly carrying out hot press moulding on the acupunctured mat, so that the fireproof insulation board is obtained, wherein the impregnating compound comprises a binding agent, a fireproof agent and a hydrophobing agent. Compared with the prior art, the preparation method of the fireproof insulation board has the characteristics that a production technology is simple, production efficiency is high, a production process is environment-friendly, energy consumption is low, yield is high, fireproof performance of the fireproof insulation board product is good, peel strength of the fireproof insulation board product is good, the fireproof insulation board product hardly cracks in a using process, and cost is relatively low.

Description

technical field [0001] The invention belongs to the technical field of composite fireproof and thermal insulation materials, and in particular relates to a preparation method of a fireproof thermal insulation board and a wetting agent used therein. Background technique [0002] At present, the production process of the fireproof insulation board in the prior art is very complicated, and usually needs to be made into continuous fibers through base material melting, wire drawing (while coating with sizing agent), drying, chopping (dry cutting), water spraying, and carding. , needle-punched into felt, soaked in glue, squeezed dry, dried, hot-pressed, cut and packed, and many other steps to make the finished product; for example, the publication number is CN 104249496 A, which is named as a fire-proof and heat-preserving composite light board and its A method for preparing the composite lightweight sheet disclosed in the Chinese invention patent publication of the preparation me...

AI Technical Summary

Problems solved by technology

However, the fibers used in the production of fireproof insulation boards have a high water absorption rate after being needled into felt, and there is still a large amount of water remaining inside the needle felt after the process of dipping and squeezing; and due to the thermal conductivity of the fiber itself Therefore, the subsequent drying process usually requires a relatively long time of baking at a higher temperature, which is very time-consuming and energy-consuming, and it is difficult to control the moisture content in the needle felt within an ideal range after baking, and then As a result, the quality of the fireproof and thermal insulation panels produced by the subsequent hot pressing molding process fluctuates greatly, the yield is low, and the cost is high