Polyurea expanding type fireproof paint as well as preparation method and application thereof

Abstract

The invention relates to expanding type fireproof paint taking polyurea resin as a film forming substance and application of the expanding type fireproof paint. The expanding type fireproof paint contains a component A and a component B, wherein the component A contains an isocyanate prepolymer, the component B contains an amino-terminated polyether, a polyamine chain expanding agent, a diluting agent, a carbonizing catalyst, a carbonizing agent, a foaming agent, a flame retardant, a smoke suppressing agent, a pigment filler, an adjuvant and a mixed solvent, and the weight ratio of the component A to the component B is 1:5 to 1:7. The fireproof paint is suitable for the fireproof protection of indoor and outdoor steel structures and nonmetal structures and can be used for prohibiting the propagation of flame and the transmission of heat to a substrate. The expanding type fireproof paint is suitable for the fireproof protection in the fields of airport facilities, municipal engineering, vehicles, ships, petrochemical facilities and the like.

Description

technical field

[0001] The invention relates to the field of fireproof coatings, in particular to an intumescent fireproof coating using polyurea resin as a film-former and its application. Background technique

[0002] Spray polyurea elastomer technology uses amino-terminated polyether and amine chain extender as the active hydrogen component, which reacts with isocyanate and can be quickly cured at room temperature without a catalyst. This type of coating has the characteristics of fast curing, insensitivity to temperature and humidity, excellent mechanical properties, high temperature resistance and aging resistance. With the enhancement of people's awareness of safety and environmental protection, many fields, such as construction, transportation, ships, etc., put forward higher requirements for fire performance. The spray polyurea elastomer itself is a flammable high polymer, and it needs to add fire-resistant and flame-retardant components to achieve its purpose. [...

Examples

Embodiment 1

[0058] Component B: 30 parts of JeffamineT403 (amino-terminated polyether), 1 part of diethyltoluenediamine (polyamine chain extender), 5 parts of propylene carbonate (thinner), ammonium polyphosphate (polymerization degree 30≤n≤ 100, surface treatment with silane coupling agent) 8 parts, ammonium polyphosphate (polymerization degree n≥1000, surface treatment with silane coupling agent) 32 parts, pentaerythritol 15, melamine 13 parts, tricresyl phosphate 6 parts, hydroxide 4 parts of aluminum, 6 parts of magnesium hydroxide, 5 parts of titanium dioxide, 0.3 parts of KH-550, 0.4 parts of BYK-310, 0.3 parts of BYK-066N, 25 parts of mixed solvent;

[0059] Component A: Rubinate 1245 30 parts;

[0060] Mix and disperse components B evenly, and then mix components A and B at a ratio of 1:5 for use.

Embodiment 2

[0062] Component B: 50 parts of Jeffamine D2000, 2 parts of N, N'dialkylphenylenediamine, 5 parts of ethyl carbonate, 12 parts of ammonium polyphosphate (30≤n≤100, surface treated with titanate coupling agent) , ammonium polyphosphate (n≥1000, surface treated with titanate coupling agent) 36 parts, pentaerythritol 17 parts, melamine 16 parts, tricumyl phosphate 10 parts, aluminum hydroxide 5 parts, magnesium hydroxide 6 parts , 5 parts of titanium dioxide, 5 parts of calcium carbonate, 1 part of KH-550, 0.5 part of BYK-054, 0.8 part of BYK-325, 29 parts of mixed solvent;

[0063] Component A: Rubinate 1245 35 parts;

[0064] Mix and disperse components B evenly, and then mix and use components A and B at a ratio of 1:5.9.

Embodiment 3

[0066] Component B: 50 parts of BASF T403, 2 parts of isophorone diamine, 10 parts of propylene carbonate, 16.5 parts of ammonium polyphosphate (30≤n≤100, surface treated with titanate coupling agent), ammonium polyphosphate (n≥1000, surface treatment with silane coupling agent) 38.5 parts, 20 parts of dipentaerythritol, 19 parts of melamine, 15 parts of tributyl phosphate, 5 parts of magnesium hydroxide, 8 parts of magnesium hydroxide, 5 parts of aluminum oxide , 7 parts of titanium dioxide, 1 part of HK-560, 1 part of BYK-344, 0.5 parts of BYK-141, 30 parts of mixed solvent;

[0067] Component A: Rubinate 9016 41 parts;

[0068] Mix and disperse components B evenly, and then mix components A and B at a ratio of 1:7 for use.

technical field

[0001] The invention relates to the field of fireproof coatings, in particular to an intumescent fireproof coating using polyurea resin as a film-former and its application. Background technique

[0002] Spray polyurea elastomer technology uses amino-terminated polyether and amine chain extender as the active hydrogen component, which reacts with isocyanate and can be quickly cured at room temperature without a catalyst. This type of coating has the characteristics of fast curing, insensitivity to temperature and humidity, excellent mechanical properties, high temperature resistance and aging resistance. With the enhancement of people's awareness of safety and environmental protection, many fields, such as construction, transportation, ships, etc., put forward higher requirements for fire performance. The spray polyurea elastomer itself is a flammable high polymer, and it needs to add fire-resistant and flame-retardant components to achieve its purpose. [...

Examples

Embodiment 1

[0058] Component B: 30 parts of JeffamineT403 (amino-terminated polyether), 1 part of diethyltoluenediamine (polyamine chain extender), 5 parts of propylene carbonate (thinner), ammonium polyphosphate (polymerization degree 30≤n≤ 100, surface treatment with silane coupling agent) 8 parts, ammonium polyphosphate (polymerization degree n≥1000, surface treatment with silane coupling agent) 32 parts, pentaerythritol 15, melamine 13 parts, tricresyl phosphate 6 parts, hydroxide 4 parts of aluminum, 6 parts of magnesium hydroxide, 5 parts of titanium dioxide, 0.3 parts of KH-550, 0.4 parts of BYK-310, 0.3 parts of BYK-066N, 25 parts of mixed solvent;

[0059] Component A: Rubinate 1245 30 parts;

[0060] Mix and disperse components B evenly, and then mix components A and B at a ratio of 1:5 for use.

Embodiment 2

[0062] Component B: 50 parts of Jeffamine D2000, 2 parts of N, N'dialkylphenylenediamine, 5 parts of ethyl carbonate, 12 parts of ammonium polyphosphate (30≤n≤100, surface treated with titanate coupling agent) , ammonium polyphosphate (n≥1000, surface treated with titanate coupling agent) 36 parts, pentaerythritol 17 parts, melamine 16 parts, tricumyl phosphate 10 parts, aluminum hydroxide 5 parts, magnesium hydroxide 6 parts , 5 parts of titanium dioxide, 5 parts of calcium carbonate, 1 part of KH-550, 0.5 part of BYK-054, 0.8 part of BYK-325, 29 parts of mixed solvent;

[0063] Component A: Rubinate 1245 35 parts;

[0064] Mix and disperse components B evenly, and then mix and use components A and B at a ratio of 1:5.9.

Embodiment 3

[0066] Component B: 50 parts of BASF T403, 2 parts of isophorone diamine, 10 parts of propylene carbonate, 16.5 parts of ammonium polyphosphate (30≤n≤100, surface treated with titanate coupling agent), ammonium polyphosphate (n≥1000, surface treatment with silane coupling agent) 38.5 parts, 20 parts of dipentaerythritol, 19 parts of melamine, 15 parts of tributyl phosphate, 5 parts of magnesium hydroxide, 8 parts of magnesium hydroxide, 5 parts of aluminum oxide , 7 parts of titanium dioxide, 1 part of HK-560, 1 part of BYK-344, 0.5 parts of BYK-141, 30 parts of mixed solvent;

[0067] Component A: Rubinate 9016 41 parts;

[0068] Mix and disperse components B evenly, and then mix components A and B at a ratio of 1:7 for use.

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