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Reaction bonding type node sealant and preparation method thereof

A bonding type, sealing paste technology, applied in the direction of adhesive types, chemical instruments and methods, adhesives, etc., can solve problems such as inability to achieve sealing, poor adhesion, and inability to adhere to asphalt

Active Publication Date: 2013-02-06
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

[0047] Asphalt 3000g modifier 1500g emulsifier 40g

[0048] Crosslinking agent 50g Thickener 50g Water 3000g

[0049] Wherein the asphalt is No. 70 petroleum asphalt;

[0050] The modifier is SBS asphalt modifier;

[0051] The emulsifier is alkyl dimethyl hydroxyethyl ammonium chloride;

[0052] The crosslinking agent is vinyltriethoxysilane;

[0053] The thickener is sodium polyacrylate;

[0054] 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 Emulsifying machine, to emulsify the asphalt mixture to prepare an emulsion, then add thickener and crosslinking agent, and stir evenly to obtain.

Embodiment 2

[0056] Asphalt 5000g modifier 2000g emulsifier 300g

[0057] Cross-linking agent 100g Thickener 300g Water 5000g

[0058] Wherein the asphalt is No. 120 petroleum asphalt;

[0059] The modifier is SBR asphalt modifier;

[0060] The emulsifier is an alkylhydroxy amidopolyamine;

[0061] The crosslinking agent is aminopropyltriethoxysilane;

[0062] The thickener is bentonite;

[0063] The preparation method of the reaction-adhesive joint sealing paste of the present invention comprises the following steps: stirring asphalt and 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 thickener and crosslinking agent, stir evenly, and the product is obtained.

Embodiment 3

[0065] Asphalt 4000g modifier 1800g emulsifier 200g

[0066] Cross-linking agent 60g Thickener 100g Water 4000g

[0067] Wherein the asphalt is No. 90 petroleum asphalt;

[0068] The modifier is APP asphalt modifier;

[0069] The emulsifier is cetyltrimethylammonium bromide;

[0070] The crosslinking agent is tetraisopropyl bis(dioctylphosphite acyloxy) titanate;

[0071] The thickener is cellulose ether;

[0072] The preparation method of the reaction-adhesive joint sealing paste of the present invention comprises the following steps: stirring asphalt and 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 thickener and crosslinking agent, stir evenly, and the product is obtained.

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PUM

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Abstract

The invention provides a reaction bonding type node sealant and a preparation method thereof. The sealant comprises asphalt, modifiers, an emulsifier, a crosslinking agent, thickeners, a reinforcing agent and water. In the formula system, more appropriate modifiers are adopted compared with the prior art, so that a rubber asphalt mixture can achieve good emulsification effect, elasticity and strength of a sealing layer after drying are greatly improved, and the sealing effect can be good and lasting; the chemical linkage effect with concrete is formed by using the crosslinking agent, and bonding force with the concrete is improved; and a lot of thickeners are used for adjusting the stickness of the sealant system, so that the reaction bonding type node sealant can better adhere to the surface of a pentatricopeptide repeats (PPR) or polyvinyl chloride (PVC) pipe, and good sealing at positions where PPR or PVC water supply and drainage pipes are connected with base surfaces of concrete.

Description

technical field [0001] The invention relates to the field of sealing and waterproofing, in particular to a reaction bonding type node 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, and the concrete is 1×10 at room temperature. -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 temperature co...

Claims

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Application Information

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IPC IPC(8): C09J195/00C09J153/02C09J109/06C09J123/12C09J123/22C09J111/00C09J11/06C09J11/04C09J11/08C09K3/10
Inventor 卢桂才朱方伍陈立斌赵晓岚陆善庆
Owner XI NIU PI WATERPROOFING TECH CO LTD
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