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Modified emulsified asphalt waterproof sealant and preparation method thereof

A technology of emulsified asphalt and waterproof sealing, which is applied to chemical instruments and methods, other chemical processes, building components, etc., and can solve problems such as poor adhesion, inability to achieve sealing, and inability of asphalt to adhere

Inactive Publication Date: 2013-01-30
XI NIU PI WATERPROOFING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, when the asphalt is hot-melted, the temperature control should be just right. If the temperature is too high, the fluidity of the asphalt will be too good, and the asphalt will not be able to adhere to the PPR or PVC pipe, and the seal will not be achieved. Moreover, when the temperature exceeds 100°C, it will be easily damaged. ; If the temperature is too low, the adhesion performance of asphalt and PPR or PVC pipes, as well as concrete will not meet the requirements
The second is to pay great attention to the method of construction, and the coating should be very uniform, and it is often necessary to repeat the coating several times. construction techniques to compensate
Polyacrylic resin sealant can be applied on wet substrates, but it has poor adhesion to PPR or PVC pipes and concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]Asphalt 3000g modifier 1500g emulsifier 150g

[0044] Thickener 50g Water 3000g

[0045] Wherein the asphalt is No. 70 petroleum asphalt;

[0046] The modifier is SBS asphalt modifier;

[0047] The emulsifier is alkyl dimethyl hydroxyethyl ammonium chloride;

[0048] The thickener is sodium polyacrylate;

[0049] Stir the asphalt and modifier at 120°C for 1 hour to fully melt and mix to obtain mixture A; grind mixture A with a colloid mill to obtain mixture B; start the emulsifier, and add mixture B and rubber emulsifier to the The emulsifier is used to emulsify the asphalt mixture to prepare an emulsion, then add a thickener and stir evenly to obtain the product.

Embodiment 2

[0051] Asphalt 5000g modifier 2000g emulsifier 300g

[0052] Thickener 300g Water 5000g

[0053] Wherein the asphalt is No. 120 petroleum asphalt;

[0054] The modifier is SBR asphalt modifier;

[0055] The emulsifier is an alkylhydroxy amidopolyamine;

[0056] The thickener is bentonite;

[0057] The preparation method of the modified emulsified asphalt waterproof sealant of the present invention comprises the following steps: stirring the asphalt and the modifier at 180°C for 3 hours to fully melt and mix them to obtain a mixture A; grinding the mixture A with a colloid mill , to obtain mixture B; start the emulsifier, add mixture B and rubber emulsifier to the emulsifier at the same time, emulsify the asphalt mixture to prepare an emulsion, then add a thickener, stir evenly, and the product is obtained.

Embodiment 3

[0059] Asphalt 4000g modifier 1800g emulsifier 200g

[0060] Thickener 100g Water 4000g

[0061] Wherein the asphalt is No. 90 petroleum asphalt;

[0062] The modifier is APP asphalt modifier;

[0063] The emulsifier is cetyltrimethylammonium bromide;

[0064] The thickener is cellulose ether;

[0065] The preparation method of the modified emulsified asphalt waterproof sealant of the present invention comprises the following steps: stirring the asphalt and the modifier at 150°C for 2 hours to fully melt and mix them to obtain a mixture A; grinding the mixture A with a colloid mill , to obtain mixture B; start the emulsifier, add mixture B and rubber emulsifier to the emulsifier at the same time, emulsify the asphalt mixture to prepare an emulsion, then add a thickener, stir evenly, and the product is obtained.

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Abstract

The invention aims to provide a modified emulsified asphalt waterproof sealant and a preparation method thereof. The modified emulsified asphalt waterproof sealant comprises asphalt, a modifying agent, an emulsifying agent, a thickening agent and water. In a formula system of the modified emulsified asphalt waterproof sealant, more modifying agent in an appropriate amount is adopted than that of the prior art, so that a rubber-asphalt mixture can achieve a good emulsifying effect, the elasticity and strength of a dried sealing layer are greatly improved, and the sealing effect can be better and lasting; and a large amount of the thickening agent is used to adjust the appropriate viscosity of a modified emulsified asphalt waterproof sealant system, so that the modified emulsified asphalt waterproof sealant can be well adhered to the surface of a relatively smooth polypropylene random copolymer (PPR) or polyvinyl chloride (PVC) pipe to well seal the connection part of a PPR or PVC water supply and drainage pipe and a concrete base.

Description

technical field [0001] The invention relates to the field of sealing and waterproofing, in particular to a modified emulsified asphalt waterproofing sealing paste and a preparation method thereof. Background technique [0002] At present, the linear expansion coefficient of the PPR or PVC water supply and drainage pipes passing through the floor in the kitchen and bathroom of the building is very different from that of the concrete floor. At room temperature, the concrete is 1×10 -5 / ℃, PPR or PVC pipe is (6~7) ×10 -5 / °C, after several seasonal freeze-thaw cycles, gaps are likely to appear at the connection between the water supply and drainage pipes and the concrete floor. , need to be sealed and waterproofed. The existing sealing waterproof treatment technology has the following several methods: [0003] Modified asphalt sealing treatment, the modified asphalt is melted at a suitable temperature and then poured. The operation of this process is complicated, and the tem...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L9/06C08L23/10C08L23/22C08L11/00C08L33/02C08L1/26C08L29/04C08L33/26C08L5/04C08L83/00C08L97/00C08L1/28C08L89/00C08K5/19C08K5/20C08K3/34C08K3/26C08K3/30C08K5/17C08K7/14C08K13/04C08K3/22C09K3/10
Inventor 卢桂才朱方伍杨建国陆善庆周为为
Owner XI NIU PI WATERPROOFING TECH CO LTD
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