Preparation method for self-adhesive modified asphalt waterproof coiled material with cement reactivity

A modified asphalt and cement reaction technology, applied in the direction of asphalt material adhesives, chemical instruments and methods, adhesives, etc., can solve the problems of non-conformity of water impermeability of coiled materials, affecting bonding reliability, low flash point, etc. Achieving the effect of flexible construction characteristics on wet base surface, significant cost advantages, and solving technical defects

Active Publication Date: 2014-09-24
胜利油田大明新型建筑防水材料有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are technical defects such as butyl naphthenate (poor compatibility with asphalt) is easy to migrate to the surface of the self-adhesive material and affect the bonding reliability. In addition, polymethylethoxysilane is a flammable substance with a low flash point. Modified asphalt is easy to volatilize in a large amount under the condition of ingredients above 180°C, causing occupational injury or fire; Document 2 solves the above problems by adding SBR and EVA, and its negative effect is that the self-adhesive modified asphalt has a small Poor water permeability, only relatively high-priced polymer sheets can be used as reinforcement materials. If relatively low-priced polyester tires are used as reinforcement materials, the impermeability of the coil does not meet the requirements of relevant national standards, which also limits promoted its application

Method used

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  • Preparation method for self-adhesive modified asphalt waterproof coiled material with cement reactivity
  • Preparation method for self-adhesive modified asphalt waterproof coiled material with cement reactivity
  • Preparation method for self-adhesive modified asphalt waterproof coiled material with cement reactivity

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Experimental program
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Effect test

Embodiment 1

[0037] 1. Preparation method of modified asphalt pressure-sensitive self-adhesive with cement reactivity

[0038] The production method is to first add 45 parts of heavy-duty asphalt, 10 parts of naphthenic rubber oil and 4 parts of aromatic rubber oil into a vertical batching tank with a stirring device and mix them when the temperature rises to 140-160 ° C, and then slowly Add 6 parts of SBS thermoplastic rubber, 3 parts of SIS thermoplastic rubber, 2 parts of powdered styrene-butadiene rubber and 4 parts of butyl rubber powder, and then slowly raise the temperature to 160-180 °C, start the colloid mill and grind 2-3 times until nothing After the particles are visible to the naked eye, add 5 parts of liquid tackifying resin and 3 parts of petroleum resin to cool down and stir until the petroleum resin is melted evenly, then pump the modified asphalt into a horizontal filling mixing tank, add 15 parts of talcum powder and keep it warm and stir evenly, then add 3 parts of whit...

Embodiment 2

[0042] 1. Preparation method of modified asphalt pressure-sensitive self-adhesive with cement reactivity

[0043] The production method is to first add 45 parts of heavy-duty asphalt, 4 parts of naphthenic rubber oil and 6 parts of aromatic rubber oil into a vertical batching tank with a stirring device and mix them when the temperature rises to 140-160 ° C, and then slowly Add 5 parts of SBS thermoplastic rubber, 2 parts of SIS thermoplastic rubber, 2 parts of powdered styrene-butadiene rubber and 5 parts of butyl rubber powder, then slowly raise the temperature to 160-180°C, start the colloid mill and grind 2-3 times until nothing After the particles are visible to the naked eye, add 4 parts of liquid tackifying resin and 4 parts of petroleum resin to cool down and stir until the petroleum resin is melted evenly, then pump the modified asphalt into a horizontal filling mixing tank, add 20 parts of talcum powder and keep it warm and stir evenly, then add 3 parts of white carb...

Embodiment 3

[0047] 1. Preparation method of modified asphalt pressure-sensitive self-adhesive with cement reactivity

[0048] Its production method is to first add 35 parts of heavy asphalt and 8 parts of naphthenic rubber oil into a vertical batching tank with a stirring device, mix and heat up to 140-160 ° C, then slowly add 3 parts of SBS thermoplastic rubber, 0 1 part of SIS thermoplastic rubber, 0 part of powdered styrene-butadiene rubber and 5 parts of butyl rubber powder, then slowly increase the temperature to 160-180°C, start the colloid mill and "invert the tank" to grind for 2-3 times until no particles are visible to the naked eye, then add 1 part The liquid tackifying resin and 1 part of petroleum resin are cooled and stirred until the petroleum resin is melted evenly, then the modified asphalt is pumped into a horizontal filling mixing tank, and 15 parts of talcum powder is added to keep warm and stirred evenly, and then the concrete with cement reactivity can be made. Modif...

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Abstract

The invention relates to a preparation method for a self-adhesive modified asphalt waterproof coiled material with cement reactivity. According to the technical scheme, the method comprises the following steps of coating on one or two sides of a base reinforcement layer with modified asphalt pressure sensitive self-adhesive glue with cement reactivity to form (a) modified asphalt pressure sensitive self-adhesive glue layer(s) by using an oil coating roller pair, and wrapping the modified asphalt pressure sensitive self-adhesive glue layer(s) with (an) anti-sticking separation film(s) to prepare a self-adhesive modified asphalt waterproof coiled material product with cement reactivity. The method has the beneficial effects that the modified asphalt pressure sensitive self-adhesive glue is used, so that the coiled material is endowed with a cement mortar adhesion characteristic, and has a thermal creep characteristic, the problem that an adhered surface is polluted by dust and the like on a construction site is effectively solved, and the range of construction application temperature of the coiled material is widened; the modified asphalt pressure sensitive self-adhesive glue is permanently and organically combined with concrete of a structural layer, and the hidden danger of water mixing is avoided; the reliability of a waterproof layer is improved, and unique self-healing capability for slight construction damage is achieved.

Description

technical field [0001] The invention relates to a preparation method of a waterproof coiled material, in particular to a preparation method of a self-adhesive modified asphalt waterproof coiled material with cement reactivity. Background technique [0002] In China, the self-adhesive modified bitumen waterproof membrane is a new type of waterproof membrane developed after the 1990s. It is a development direction of building waterproof membranes in the world. Compared with traditional building waterproof membranes, it is mainly Cold self-adhesive construction has the advantages of no open flame, not easy to cause fire, no solvent pollution, safe, environmentally friendly and convenient construction, etc., and is favored by the building waterproofing industry, especially the construction unit. Therefore, it has developed rapidly in China in recent years. However, this kind of self-adhesive waterproof membrane also has a fatal technical defect, that is, the construction is gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/08C09J195/00C09J109/06C09J153/02C09J11/04
Inventor 张广彬吕国松杜奎义
Owner 胜利油田大明新型建筑防水材料有限责任公司
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