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Organosilicon-polyurea resin coating composition for protection and anti-explosion use, and construction method thereof

A technology of polyurea resin and composition, which is applied in the field of coatings, can solve problems such as personal injury and building damage, and achieve the effects of labor-saving operation, increased adhesion, and improved physical properties

Inactive Publication Date: 2019-11-01
上海沐皿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy during earthquakes, explosions, etc. will be transmitted through the surrounding air in the form of shock waves at an extremely fast speed, which will not only cause damage to buildings, but also cause personal injury

Method used

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  • Organosilicon-polyurea resin coating composition for protection and anti-explosion use, and construction method thereof
  • Organosilicon-polyurea resin coating composition for protection and anti-explosion use, and construction method thereof
  • Organosilicon-polyurea resin coating composition for protection and anti-explosion use, and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A silicone polyurea resin coating composition for protection against explosions, comprising a main agent and a curing agent, the main agent and the curing agent are mixed in a volume ratio of 1.13:1;

[0028] Wherein, the main agent includes: 67.8% of polyoxypropylene diamine, 19% of diethyltoluene diamine, 5% of pigment and filler, 1% of anti-ultraviolet agent, 1% of adhesion promoter, and 0.5% of dispersant according to weight percentage , stabilizer 0.2%, defoamer 0.5%, modified amino silicone oil 5%;

[0029] The curing agent is 100% by weight of isocyanate prepolymer.

[0030] Further, sequentially add 41 to 51 wt% of diphenylmethane diisocyanate with a molecular weight of 250.3, 44 to 49 wt% of polyols with a molecular weight of 2000 or polyether polyols with a molecular weight of 3000 to the reaction tank. React for 3-4 hours at 50-150rpm; add 5-15wt% phosphorus-based flame retardant, mix for 30-40 minutes at a temperature of 40-60°C and a stirring speed of 50-1...

Embodiment 2

[0044] A silicone polyurea resin coating composition for protection against explosions, comprising a main agent and a curing agent, the main agent and the curing agent are mixed in a volume ratio of 1.11:1;

[0045] Wherein, the main agent includes: 68.3% of polyoxypropylene diamine, 20.5% of diethyltoluene diamine, 5% of pigment and filler, 1% of anti-ultraviolet agent, 1% of adhesion promoter, and 0.5% of dispersant according to weight percentage , stabilizer 0.2%, defoamer 0.5%, modified amino silicone oil 3%;

[0046] The curing agent is 100% by weight of isocyanate prepolymer.

[0047] Further, sequentially add 43-55 wt% of carbodiimide-modified 4,4-diphenylmethane diisocyanate with a molecular weight of 285, 40-50 wt% of a polyol with a molecular weight of 2000 or a polyether polyol with a molecular weight of 3000, into the reaction tank, React for 3-4 hours at a temperature of 70-90°C and a stirring speed of 50-150rpm; add 5-15wt% phosphorus-based flame retardant, and ...

Embodiment 3

[0050] The silicone polyurea resin coating composition for protection and explosion-proof comprises a main agent and a curing agent, and the main agent and the curing agent are mixed in a weight ratio of 1.09:1;

[0051] Wherein, the main agent includes: 66.2% of polyoxypropylene diamine, 19.6% of diethyltoluene diamine, 5% of pigment and filler, 1% of anti-ultraviolet agent, 1% of adhesion promoter, and 0.5% of dispersant , stabilizer 0.2%, defoamer 0.5%, modified amino silicone oil 6%;

[0052] The curing agent is 100% by weight of isocyanate prepolymer.

[0053] Further, 15-35% by weight of diphenylmethane diisocyanate with a molecular weight of 250.3, carbodiimide-modified 4,4 diphenylmethane diisocyanate with a molecular weight of 285, and polyols with a molecular weight of 2000 or 3000 polyether polyol 40-50wt%, at a temperature of 70-90°C and a stirring speed of 50-150rpm, react for 3-4 hours; add phosphorus flame retardant 5-15wt%, stir at a temperature of 40-60°C, M...

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Abstract

The invention discloses an organosilicon-polyurea resin coating composition for protection and anti-explosion use and a construction method thereof. The composition includes a main reagent and a curing agent, wherein the main reagent includes, by weight, 58-68% of polypropylene oxide diamine, 12-22% of diethyltoluenediamine, 3-10% of pigment filler, 0.5-2% of an ultraviolet-proof agent, 0.7-2.3% of an adhesive force promoter, 0.1-1% of a dispersant, 0.1-0.5% of a stabilizer, 0.5-3% of a defoamer and 3-15% of modified amino silicone oil; and the curing agent is an isocyanate prepolymer the weight percentage of which is 100%. The composition is constructed by the method including S1) substrate pretreatment, S2) substrate adjusting and coating, S3) undercoat coating, S4) coating with the composition, and S5) coating with yellowing-resistant high-hardness paint. The composition and the method can prevent influences of pressure loads caused by explosion and earthquakes on concrete structures or cement brick structures.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an explosion-proof silicone polyurea resin coating composition and a construction method thereof. Background technique [0002] With the rapid development of modern industry and the national economy and the improvement of architectural concepts, people have higher and higher requirements for the safety performance of industrial buildings and civil buildings. direction development. Among them, the anti-explosion coating is one of the urgently needed materials. The energy during earthquakes, explosions, etc. will be transmitted through the surrounding air in the form of shock waves at an extremely fast speed, which will not only cause damage to buildings, but also cause personal injury. Therefore, it is urgent to obtain a method that can prevent the impact of the pressure load caused by explosions and earthquakes on concrete structures or cement brick structures, and has a high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C08G18/66C08G18/32C08G18/50C08G18/61C08G18/48C04B41/71C04B41/72
CPCC04B41/52C04B41/5315C04B41/71C04B41/72C08G18/482C08G18/5024C08G18/61C08G18/6685C09D175/02C04B41/4905C04B41/4896C04B41/4884C04B41/488
Inventor 丁贤雄张欣艺金东圭
Owner 上海沐皿新材料科技有限公司
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