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High temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating and preparation method thereof

An asphalt waterproof coating, non-curing rubber technology, used in building thermal insulation materials, building components, buildings and other directions, can solve the problems of poor low temperature flexibility, high spray construction temperature, easy sliding, flowing, etc., to achieve adhesion and durability. Good adhesion, saving energy and material loss, simple and easy-to-control production process

Active Publication Date: 2016-01-06
德州科顺建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to facilitate construction, traditional non-curing rubber asphalt waterproof coatings are generally designed to have greater fluidity at high temperatures, which easily leads to poor heat resistance of the product, easy sliding and flowing at high temperatures, and easy sagging during high temperature construction.
Especially for spray-coated products, this phenomenon is more obvious, because the spray construction requires the product to have a relatively low viscosity, so it is easy to cause sagging in the facade construction, which affects the use effect of the product
In order to solve these problems, the traditional method is to add high-temperature-resistant resin or filler to the product to improve the high-temperature resistance of the product, but this method often leads to the following two problems: 1. The viscosity of the product increases, and the resistance to scrape coating is large , the spraying construction temperature is too high to cause danger, and the spraying is easy to plug the gun; 2. The product has high cohesion, poor flexibility at low temperature, poor adhesion to the substrate, and poor wriggling

Method used

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  • High temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating and preparation method thereof
  • High temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating and preparation method thereof
  • High temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0025] Embodiment 1~7 all adopts following method to prepare:

[0026] 1. Pump the asphalt and rubber oil in the molten state into the reaction kettle through the insulation pipe, stir for 10 minutes after heating up to the temperature of the material at 120°C;

[0027] 2. Put in the weighed styrene-butadiene rubber, random polypropylene and tackifying resin, stir and heat up to 180°C, then stir at constant temperature for 2 hours;

[0028] 3. Put in the weighed fly ash and rheological additives, stir at a constant temperature of 180°C for 1 hour to form a uniform liquid, cool the circulating water to 150°C and filter out the material to obtain the finished product.

Embodiment 1

[0030] In this embodiment, the non-curable rubber asphalt waterproof coating that can be sprayed with high temperature resistance and anti-sagging is composed of the following mass percentages: 90# asphalt 15%, aromatic rubber oil 22%, naphthenic rubber oil 5%, star styrene-butadiene Styrene-styrene copolymer (SBS) 1%, styrene-butadiene copolymer (SBR) 7%, random polypropylene 7%, C9 petroleum resin 8%, C5 petroleum resin 7%, fly ash 25%, fumed silica 1%, organic montmorillonite 2%.

[0031] The star-shaped styrene-butadiene-styrene copolymer (SBS) described in the present embodiment is the SBS411 of Korea LG Company; The fumed silica is the M-5 of Cabot; The styrene-butadiene The parameters of vinyl copolymer (SBR) are as follows:

[0032] project

[0033] Its parameter of described random polypropylene (APP) is as follows:

[0034] project

[0035] The performance of the non-curing rubber asphalt waterproof coating described in this embodiment is as f...

Embodiment 2

[0043] In this embodiment, the high-temperature-resistant and anti-sag sprayable non-curing rubber asphalt waterproof coating is composed of the following mass percentages: 13% of 90# asphalt, 21% of 110# asphalt, 20% of aromatic rubber oil, star-shaped styrene-butadiene - Styrene Copolymer (SBS) 3%, Styrene-Butadiene Copolymer (SBR) 3%, Random Polypropylene 7%, C9 Petroleum Resin 4%, C5 Petroleum Resin 3%, Fly Ash 15 %, organic montmorillonite 2%, polyamide modified polyacrylate 8%, polyamide wax 1%.

[0044] The star-shaped styrene-butadiene-styrene copolymer (SBS) described in the present embodiment is the SBS411 of Korea LG Company; Its parameter of described styrene-butadiene copolymer (SBR) is as follows:

[0045] project

indicators

Granularity (mesh)

≤40

molecular weight

200,000 to 300,000

bound styrene

21.5～35

[0046] Raw Rubber Mooney Viscosity

48～86

[0047] Its parameter of described random...

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Abstract

The invention provides a high temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating and a preparation method thereof. The coating is prepared from, by mass, 15-35% of asphalt, 10-30% of rubber oil, 5-10% of butadiene styrene rubber, 3-10% of atactic polypropylene, 3-15% of tackifying resin, 15-35% of coal ash and 2-11% of rheological auxiliaries. Compared with existing products, the high temperature resistance sagging prevention sprayable non-solidification rubber asphalt waterproof coating has the better comprehensive performance.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a high-temperature-resistant anti-sag sprayable non-curing rubber asphalt waterproof coating and a preparation method thereof. Background technique [0002] Non-curing rubber asphalt waterproof coating is a high solid content hot-melt polymer rubber modified asphalt waterproof coating. It has the characteristics of long-term non-curing, self-healing power, sticky when touched, difficult to peel off, and good low-temperature bonding performance. It can solve the problems of cracking, fatigue damage or premature aging of the waterproof layer caused by the stress change of the base layer transmitted to the waterproof layer, which cannot be solved by traditional curing coatings. At the same time, it can be used as the bottom attachment coating in conjunction with the waterproof membrane to form a composite waterproof layer. This waterproof layer can solve the problem of water str...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/00C08L9/06C08L23/12C08L57/02C08K3/34C08K3/36
Inventor 陈伟忠杨小育方勇龚兴宇游启明吴广荣
Owner 德州科顺建筑材料有限公司
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