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Reactive normal temperature flame retardant asphalt and its preparation method and application

A flame retardant asphalt, reactive technology, used in building insulation materials, building components, buildings, etc., can solve the problems of flame retardant heating failure, poor performance of emulsified normal temperature flame retardant asphalt mixture, etc., and achieve excellent flame retardancy. , Solve the effect of heating failure

Inactive Publication Date: 2021-09-24
湖南鑫长胜材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve at least part of the above-mentioned technical problems, the present invention provides a reactive normal temperature flame retardant asphalt and its preparation method and application, which solves the problem of heating failure of the flame retardant of hot mix flame retardant asphalt mixture, and emulsified normal temperature flame retardant asphalt mixture poor performance issues

Method used

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  • Reactive normal temperature flame retardant asphalt and its preparation method and application

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preparation example Construction

[0036] The second aspect of the present invention provides the preparation method of the reactive type normal temperature flame retardant asphalt of the present invention (sometimes referred to simply as "the method of the present invention" in the present invention), which comprises sequentially adding a prescribed amount of reactive solvent, Steps for water-based epoxy resin, unsaturated polyester resin, coupling agent and flame retardant.

[0037] The step (1) of the present invention is to effectively dissolve the asphalt so that it has good fluidity at normal temperature. Specifically, it refers to heating 50-60 parts by weight of asphalt to 135-150 °C, adding 20-30 parts by weight of a reactive solvent, stirring at the first stirring speed for 5-10 minutes, and then continuing to stir at the second stirring speed for 1 -10min, a mixed solution was obtained. In this step (1), it is preferred to heat to 135-150°C, preferably 140-145°C. Usually stir 5-10min under the slow...

Embodiment 1

[0044] The preparation of the reaction type normal temperature flame retardant asphalt of the present embodiment is as follows:

[0045] (1) Weigh 50 parts of petroleum base asphalt, 5 parts of water-based epoxy resin, 10 parts of unsaturated polyester resin (7901), 25 parts of reactive solvent, and 15 parts of n-dodecyl triethoxysilane by weight , 8 parts of flame retardant, spare.

[0046] The raw material of the flame retardant is composed of 30 parts by weight of chlorinated paraffin, 20 parts by weight of magnesium hydroxide, 10 parts by weight of aluminum hydroxide and 20 parts by weight of zinc borate, and the above raw materials are mixed at 60 °C and stirred evenly at 30 rpm get. The reactive solvent is obtained by weighing and mixing raw materials according to the formula of 20 parts by weight of oleic acid, 6 parts by weight of dodecyl dimethyl betaine and 4 parts by weight of tris-(dimethylaminomethyl)phenol polymer.

[0047] (2) Heat the petroleum-based asphalt ...

Embodiment 2

[0055] The preparation of the reaction type normal temperature flame retardant asphalt of the present embodiment is as follows:

[0056] (1) Weigh 50 parts of petroleum-based asphalt, 5 parts of water-based epoxy resin, 10 parts of unsaturated polyester resin (bisphenol A type unsaturated polyester), 25 parts of reactive solvent, n-dodecyl 15 parts of triethoxysilane, 8 parts of flame retardant, set aside.

[0057] The raw material of the flame retardant is composed of 25 parts by weight of chlorinated paraffin, 25 parts by weight of magnesium hydroxide, 8 parts by weight of aluminum hydroxide and 15 parts by weight of zinc borate, and the above raw materials are mixed at 60 ° C and stirred at 30 rpm get. The reactive solvent is obtained by weighing and mixing raw materials according to the formula of 20 parts by weight of oleic acid, 6 parts by weight of dodecyl dimethyl betaine and 4 parts by weight of tris-(dimethylaminomethyl)phenol polymer.

[0058] (2) Heat the petrole...

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Abstract

The invention discloses a reactive normal-temperature flame-retardant asphalt, a preparation method and application thereof. Reactive normal temperature flame retardant asphalt contains 50-60 parts by weight of petroleum base asphalt, 20-30 parts by weight of reactive solvent, 10-20 parts by weight of coupling agent, 5-10 parts by weight of water-based epoxy resin, 5-10 parts by weight Unsaturated polyester resin and 5-10 parts by weight of flame retardant. The reactive normal temperature flame retardant asphalt of the invention solves the problem of heating failure of the flame retardant in the hot mix mixture and the problem of poor performance of the emulsified normal temperature flame retardant asphalt mixture.

Description

technical field [0001] The invention relates to the field of asphalt pavement materials, in particular to a reactive normal temperature flame-retardant asphalt and its preparation method and application. Background technique [0002] As an excellent road material, asphalt is widely used in various road constructions. However, asphalt is flammable, difficult to extinguish, and releases a large amount of toxic and harmful smoke, which has great harm to the safety of people and property. Especially, when it is used as a tunnel pavement, due to the particularity of the closed space of the tunnel, this hazard is more serious and prominent. [0003] The existing technical scheme has been to carry out flame-retardant modification on asphalt, so that when the asphalt is heated, it is not easy to melt and flow, and a carbonized layer is formed on the surface to inhibit the transfer of heat and oxygen to the interior of the asphalt; The inhibitory components in the layer can prevent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L63/00C08L67/06C08L91/06C08K13/02C08K5/5419C08K3/22C08K3/38
CPCC08K2003/2224C08K2003/2227C08L95/00C08L2201/02C08L2205/035C08L63/00C08L67/06C08L91/06C08K13/02C08K5/5419C08K3/22C08K3/38
Inventor 李九苏王潇潇沈增晖张毅
Owner 湖南鑫长胜材料科技有限公司
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