Lightweight fireproof foaming cement door inner filling material and preparation method thereof

Abstract

The invention discloses a lightweight flame retardant and foamy filling material of cement doors and manufacturing method thereof, comprising magnesium oxide, magnesium sulphate, fly ash, high alumina refractory cement, calcium chloride, water proofing agent, water reducing agent and foaming agent, with bulk density ranging between 200 kg/m³ and 500kg/m³; the ingredients are formulated by weight at a rate of: magnesium oxide (40 percent -55 percent), magnesium sulfate (15 percent-40 percent), fly ash (5 percent-20 percent), high alumina refractory cement (5 percent-20 percent), calcium chloride (2 percent-6 percent), water proofing agent (2 percent5 percent), water reducing agent (0.2 percent1.5 percent) and foaming agent (0.1 percent-0.5 percent). With the technical solution, the product has the advantages of high strength, light weight, flame retardancy, sound insulation, weather resistance, thermal resistance, energy efficient, freedom from toxicity, harm and irradiation, low manufacturing cost, simple process, etc, which can be widely employed for fire/theft proof metal interior door, building material and like sectors.

Description

technical field [0001] The invention relates to a lightweight foaming material, in particular to a light-weight fireproof foaming refractory cement door inner filler which can be used for anti-theft doors and fireproof door fillers, building materials and the like and a preparation method thereof. Background technique [0002] At present, domestically produced metal anti-theft safety doors and metal entrance doors generally use honeycomb paper as the filling material, and metal fire doors generally use calcium silicate board sandwiched with aluminum silicate cotton as the filling material. Honeycomb paper is popular among manufacturers due to its light weight, low production cost, and convenient transportation, but it also has the following disadvantages: first, honeycomb paper will burn in case of fire, and has no fireproof performance; second, it is sound-absorbing and heat-insulating Poor performance; third, it is easy to be affected by moisture, it will soften when it me...

AI Technical Summary

Problems solved by technology

Honeycomb paper is popular among manufacturers due to its light weight, low production cost, and convenient transportation, but it also has the following disadvantages: first, honeycomb paper will burn in case of fire, and has no fireproof performance; second, it is sound-absorbing and heat-insulating Poor performance; third, it is easy to be affected by moisture, it will soften when it meets water, and its waterproof and water resistance performance is poor; fourth, it is difficult to process and the production process is complicated

Calcium silicate board sandwiched with aluminum silicate cotton has good fire performance, sound absorption and sound insulation and heat insulation performance, so fire doors generally use calcium silicate board sandwiched with aluminum silicate cotton as filler, but there are also the following shortcomings: One is that calcium silicate board sandwiched with aluminum silicate wool is a low-temperature refractory material, which melts into liquid when exposed to high temperature, and flows to the bottom of the door leaf, which does not have the effect of fire prevention, let alone high temperature resistance, and high production costs; second, it is inconvenient to fill, The production process is complicated, and the reason is that asbestos is harmful to the human body; the third is that the State Environmental Protection Administration has clearly stipulated on March 1, 2005 that household products must not contain asbestos, and adhesives must not contain harmful substances such as formaldehyde and benzene; It has low mechanical strength and poor anti-theft performance

For this reason, many scientific research institutions, manufacturers and people of insight have continuously carried out development and research on the above-mentioned problems of existence, but there is no better improvement method so far.