Fireproof anti-condensation combined material and preparation method thereof

Abstract

The invention belongs to the technical field of cable arranging equipment, and particularly relates to a fireproof anti-condensation combined material and a preparation method thereof. The fireproof anti-condensation combined material is prepared from a component A, a component B and a component C in a mass ratio of 1 to 1 to (0.5-1), wherein the component A is prepared from polyether polyol, dichlorofluoroethane, phosphotriester and organic silicone oil; the component B is polymethylene polyphenyl polyisocyanate; and the component C is prepared from expanded graphite and ammonium polyphosphate. The preparation method for the fireproof anti-condensation combined material comprises the following steps: (1) uniformly mixing polyether polyol, dichlorofluoroethane, phosphotriester and organicsilicone oil to form the component A; (2) uniformly mixing expanded graphite and ammonium polyphosphate to form the component C; and uniformly mixing the component A, the component C and the polymethylene polyphenyl polyisocyanate. The fireproof anti-condensation combined material provided by the invention is high in foaming ratio and is less in use of sealing materials while being used for sealing a relatively long gap.

Description

technical field [0001] The invention belongs to the technical field of cable laying equipment, and in particular relates to a fireproof and anti-condensation composition material and a preparation method thereof. Background technique [0002] Air is composed of three parts: dry air, water vapor and dust. The higher the temperature, the more water vapor the air can contain and the greater the saturation humidity. If the humidity remains unchanged, when the temperature drops to a certain value, the partial pressure of water vapor reaches the saturation pressure corresponding to the temperature, and the water vapor in the air reaches saturation. If the temperature is lowered further, water vapor will condense out of the air and form dew droplets. This phenomenon is called "condensation". [0003] After cables or pipelines pass through walls, outdoor high and low voltage switch cabinets, box-type substations, cable branch boxes and other objects, the distance between cables o...

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Problems solved by technology

In view of the humid and rainy conditions in the south, the temperature and humidity controller cannot solve the condensation problem at all due to its poor dehumidification effect, and the dehumidification effect of the intelligent dehumidification device will also be reduced due to the long-term dehumidification work, and the price of traditional fireproof mud is low. It is easy to solidify and crack, and the durability of fixing and sealing is poor. Compared with the above-mentioned fire prevention and anti-condensation methods, the use of organic materials for sealing treatment has a better effect and has become a commonly adopted implementation method

[0005] For example, Chinese patent CN107023717A discloses a method for sealing and plugging cables or pipelines through structures, and the polymer foaming resin it includes is composed of A component, B component and C component, wherein A component includes polyisocyanate and Polyisocyanate, B component includes polyether polyol, polyester polyol, flame retardant, polymerization inhibitor, organic surfactant, catalyst and water, C component includes solid flame retardant and inorganic filler, which passes high Molecular foaming resin is poured around the cable or pipeline, and the sealing effect is achieved through the flow, foaming and curing of the polymer foaming resin, but its expansion ratio can only reach 3-7 times. When the longitudinal length in the gap is large, more raw materials need to be configured for sealing

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