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Environment-friendly flame-retardant modified asphalt waterproof coiled material and preparation method thereof

A technology of modified asphalt and waterproof membrane, which is applied in the direction of textiles, papermaking, coating, etc., and can solve the problems of reduced flame retardant effect and easy migration of flame retardants, etc.

Pending Publication Date: 2021-11-19
钟小琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem that during the use of the existing asphalt waterproofing membrane, after the flame retardant is added, the flame retardant easily migrates during the product preparation and storage process, and there is a phase between the asphalt matrix and the asphalt matrix. Separation, resulting in the defects and deficiencies of the flame retardant effect decline, providing an environmentally friendly flame retardant modified bitumen waterproof membrane and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of asphalt coating material: Weigh 70# road petroleum asphalt and naphthenic oil according to the mass ratio of 10:1, first heat the 70# road petroleum asphalt to 180°C until the 70# road petroleum asphalt is completely melted, and then Add naphthenic oil, stir and mix with a stirrer at a speed of 200r / min for 60min, keep warm to obtain asphalt coating material;

[0032] Preparation of silica airgel: After hydrolyzing tetraethoxysilane and water, form a sheet-like gel in the mold, and then soak the gel in the ethanol / water mixture of the original sol at a temperature of 45°C Under the condition of static aging for 48 hours, and during the aging process, 5% trimethylfluorosilane of the gel mass was added. After the aging was completed, the gel was taken out, and dried to a constant weight at a temperature of 85°C to obtain Silica airgel;

[0033] Preparation of softening thermoplastic elastomer: heating the thermoplastic elastomer to a temperature above the ...

Embodiment 2

[0042] Preparation of asphalt coating material: Weigh 70# road petroleum asphalt and naphthenic oil at a mass ratio of 15:1, first heat 70# road petroleum asphalt to 185°C until the 70# road petroleum asphalt is completely melted, and then Add naphthenic oil, stir and mix with a stirrer at a speed of 250r / min for 80min, keep warm, and obtain asphalt coating material;

[0043]Preparation of silica airgel: After hydrolyzing tetraethoxysilane and water, form a sheet-like gel in the mold, and then soak the gel in the ethanol / water mixture of the original sol at a temperature of 50°C Under the condition of static aging for 56 hours, and during the aging process, 6% trimethylfluorosilane of the gel mass was added, after the aging was completed, the gel was taken out, and dried at a temperature of 88°C to constant weight to obtain Silica airgel;

[0044] Preparation of softening thermoplastic elastomer: heating the thermoplastic elastomer to a temperature above 8° C. of the softenin...

Embodiment 3

[0053] Preparation of asphalt coating material: Weigh 70# road petroleum asphalt and naphthenic oil according to the mass ratio of 20:1, first heat the 70# road petroleum asphalt to 190°C until the 70# road petroleum asphalt is completely melted, and then Add naphthenic oil, stir and mix with a stirrer at a speed of 300r / min for 90min, keep warm, and obtain asphalt coating material;

[0054] Preparation of silica airgel: After hydrolyzing tetraethoxysilane and water, form a thin sheet gel in the mold, and then soak the gel in the ethanol / water mixture of the original sol at a temperature of 55°C Under the condition of static aging for 72 hours, and during the aging process, 8% trimethylfluorosilane of the gel mass was added. After the aging was completed, the gel was taken out, and dried to a constant weight at a temperature of 90°C to obtain Silica airgel;

[0055] Preparation of softening thermoplastic elastomer: heating the thermoplastic elastomer to a temperature above 10...

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Abstract

The invention belongs to the technical field of waterproof materials, and particularly relates to an environment-friendly flame-retardant modified asphalt waterproof coiled material and a preparation method thereof. The product developed by the invention comprises at least two silicon dioxide aerogel layers, at least one asphalt layer and at least one thermoplastic elastomer layer; the thermoplastic elastomer layer is distributed between the silicon dioxide aerogel layers and the asphalt layer; and the thermoplastic elastomer layer and the asphalt layer are clamped between the two opposite silicon dioxide aerogel layers. During preparation, the silicon dioxide aerogel layer is arranged on the surface of a polyester blank base, then the heated and softened thermoplastic elastomer layer is arranged on the surface of the silicon dioxide aerogel layer, after the thermoplastic elastomer layer is cooled to the room temperature, the heated and molten asphalt layer is applied, and when the asphalt layer is cooled to 60-80 DEG C, the heated and softened thermoplastic elastomer layer is arranged, and one silicon dioxide aerogel layer is arranged again in a hot state.

Description

technical field [0001] The invention belongs to the technical field of waterproof materials. More specifically, it relates to an environmentally friendly flame-retardant modified asphalt waterproof membrane and a preparation method thereof. Background technique [0002] Polymer modified bitumen waterproofing membrane is a traditional waterproof material, which is based on one or several kinds of materials such as base paper, fiber felt, fiber cloth, metal foil, plastic film or textile. A type of product that is supplied in rolls in long sheets made of polymer-modified asphalt and plays a waterproof role. Polymer modified bitumen waterproof membrane has high temperature resistance, low temperature resistance, good impermeability, high tensile strength, strong adaptability, good toughness, anti-fatigue, anti-ultraviolet and radiant heat aging, stable performance, long service life, and maintenance. The advantages of low cost occupy an important position in waterproof materia...

Claims

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Application Information

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IPC IPC(8): D06N5/00
CPCD06N5/00D06N5/003D06N2209/067D06N2203/068
Inventor 钟小琼
Owner 钟小琼