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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] Asphalt 3000g Modifier 1500g Emulsifier 150g

[0044] Thickener 50g 3000g water

[0045] The asphalt is No. 70 petroleum asphalt;

[0046] The modifier is SBS asphalt modifier;

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

[0048] Thickener is sodium polyacrylate;

[0049] Stir the asphalt and modifier at 120°C for 1 hour to fully melt and mix them 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 emulsifier emulsifies the asphalt mixture to prepare an emulsion, then adds the thickener and mixes it evenly to get it.

Example Embodiment

[0050] Example 2

[0051] Asphalt 5000g Modifier 2000g Emulsifier 300g

[0052] Thickener 300g water 5000g

[0053] Among them, the asphalt is No. 120 petroleum asphalt;

[0054] The modifier is SBR asphalt modifier;

[0055] The emulsifier is an alkyl hydroxy amido polyamine;

[0056] The thickener is bentonite;

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

Example Embodiment

[0058] Example 3

[0059] Asphalt 4000g Modifier 1800g Emulsifier 200g

[0060] Thickener 100g 4000g water

[0061] Among them, the asphalt is No. 90 petroleum asphalt;

[0062] The modifier is APP asphalt modifier;

[0063] The emulsifier is cetyltrimethylammonium bromide;

[0064] Thickener is cellulose ether;

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

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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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