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Preparation method of high-viscosity modified asphalt waterproof coiled material

A technology for modifying asphalt and waterproofing membranes, which is used in asphalt coatings, chemical instruments and methods, flat products, etc. to improve high temperature stability, enhance adsorption capacity, and enhance water resistance.

Inactive Publication Date: 2019-06-14
嵊州市仲明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

[0005] The object of the present invention is to provide a kind of preparation method of high-viscosity modified bitumen waterproof roll material, by using polyester fiberglass cloth as the base cloth of waterproof roll material, and adopting pre-impregnated oil to carry out pre-soaking treatment to the base cloth, To increase the density and water resistance of the base fabric, the upper and lower surfaces of the base fabric are coated with a coating material, which is made of glass fiber-based polyurethane modified asphalt. At the same time, the coating material The flame retardant is added in the pretreatment process, and the modified asphalt waterproof membrane produced has good self-adhesive and waterproof properties, and it also has flame retardant properties, and it also overcomes the existing manufacturing technology. The shortcomings of high cost and single technical indicators are suitable for large-scale production and use at high temperatures, and are better suited to the multi-faceted needs of the construction industry for waterproof materials.

Method used

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preparation example Construction

[0032] The preparation method of high-viscosity modified bitumen waterproof membrane comprises the following steps:

[0033] Step S1, preparation of tire base fabric: heating polyester to 280°C to make it completely melted, adding glass fiber (the length of glass fiber is 0.6-1.0mm) and stirring at 3000r / min for 60min with a high-speed shearing machine, wherein, The mass ratio of polyester and glass fiber is 3:2, and then pour it on a glass plate to spread the thickness of 0.5-0.6mm, and dry it at room temperature for 3-4 hours to obtain the base fabric;

[0034] The obtained base cloth is a polyester fiberglass cloth with high strength. When used as the base of the coil, it forms an integrated structure with the asphalt and acts as the skeleton of the coil, which can prevent structural damage and improve the deformation resistance of the coil. and high temperature resistance;

[0035] Step S2, pretreatment of the tire base cloth: put the tire base cloth into an electric blas...

Embodiment 1

[0053] The preparation method of high-viscosity modified bitumen waterproof membrane comprises the following steps:

[0054] Step S1, preparation of base fabric: Heat polyester to 280°C to melt it completely, add glass fiber and stir at 3000r / min for 60min with a high-speed shearing machine, wherein the mass ratio of polyester to glass fiber is 3:2, Then pour it on a glass plate and spread it to a thickness of 0.5 mm, and dry it at room temperature for 3 hours to obtain a tire base cloth;

[0055] Step S2, pretreatment of the tire base fabric: put the tire base fabric into an electric blast drying oven at 180°C and dry for 30 minutes;

[0056] Step S3, pre-impregnation: heat the pre-impregnation oil to 180°C, introduce the tire base cloth into the pre-impregnation oil, let the pre-impregnation oil completely flow over the tire base cloth, impregnate for 6 seconds, pull and squeeze out by extrusion rollers, and pull The speed is 5m / s, and the extrusion strength is 0.9MPa;

[...

Embodiment 2

[0067] The preparation method of high-viscosity modified bitumen waterproof membrane comprises the following steps:

[0068] Step S1, preparation of base fabric: Heat polyester to 280°C to melt it completely, add glass fiber and stir at 3000r / min for 60min with a high-speed shearing machine, wherein the mass ratio of polyester to glass fiber is 3:2, Then pour it on a glass plate and spread it to a thickness of 0.55 mm, and dry it at room temperature for 3.5 hours to obtain the tire base cloth;

[0069] Step S2, pretreatment of the tire base cloth: put the tire base cloth into an electric blast drying oven at 180°C and dry for 30-40 minutes, so that the moisture content of the tire body reaches below 0.08%;

[0070] Step S3, pre-impregnation: heat the pre-impregnated oil to 180°C, introduce the tire base cloth into the pre-impregnated oil, let the pre-impregnated oil completely flow over the tire base cloth, impregnate for 7s, pull and squeeze out by extrusion rollers, and pull...

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Abstract

The invention discloses a preparation method of a high-viscosity modified asphalt waterproof coiled material. The preparation method comprises the following steps S1, polyester nonwoven cloth is prepared; S2, polyester nonwoven cloth is pre-treated; S3, pre-leaching is conducted; S4, heat treatment is conducted; S5, coating materials are treated; S6, the coating materials are applied; S7, an isolating membrane is covered; and S8, cooling and coiling are conducted. According to the method, polyester glass fiber cloth is used as the polyester nonwoven cloth of the waterproof coiled material, prepreg is conducted on the polyester nonwoven cloth with oil, the compactness and the water resistance of the polyester nonwoven cloth are improved, the upper surface and the lower surface of the polyester nonwoven cloth are coated with the coating materials, the coating materials are prepared from glass fiber-based polyurethane modified asphalt, a flame retardant is added in the pre-treatment process of the coating materials, the produced modified asphalt waterproof coiled material has good self-adhesion property and waterproof performance, has the flame retardant property at the same time, andis suitable for large-scale production and high-temperature use, so that the multi-aspect requirements on waterproof materials of the construction industry can be better met.

Description

technical field [0001] The invention belongs to the technical field of waterproof coiled material manufacturing, and in particular relates to a preparation method of a high-viscosity modified asphalt waterproof coiled material. Background technique [0002] At present, building waterproof materials have certain basic conditions. By vigorously developing polymer waterproof materials and improving application technology and supporting facilities, the development and application of polymer waterproof materials will reach the world's advanced level. Therefore, with people's interest in new polymer waterproof materials With the understanding and acceptance of materials, with the guidance of policies, the market for polymer waterproof materials is broad. [0003] At present, there are three types of polymer waterproof membranes on the market: polyvinyl chloride (PVC) waterproof membranes: high strength, excellent tensile properties, good high and low temperature resistance, but be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/00C09D195/00C09D175/08C09D7/61B32B17/04B32B27/12B32B27/32B32B33/00
Inventor 不公告发明人
Owner 嵊州市仲明新材料科技有限公司
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