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High water pressure-resistant node waterproof sealing paste and preparation method thereof

A node waterproofing and sealing paste technology, applied in the directions of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of low strength, poor deformation ability, poor adhesion, and poor long-term water immersion resistance. and other problems, to achieve the effect of good adhesion, good long-term water resistance, high tensile strength and elongation at break

Inactive Publication Date: 2018-10-16
重庆科顺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional modified asphalt joint sealant generally has relatively low strength, and its long-term water pressure resistance is generally around 0.1MPa
The traditional acrylic waterproof sealant has poor flexibility, poor long-term water immersion resistance, poor adhesion to various substrates, poor adaptability to substrate deformation and poor adhesion to various substrates.

Method used

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  • High water pressure-resistant node waterproof sealing paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of waterproof sealing paste for high water pressure resistance nodes, the composition of which is as follows:

[0047] Neoprene latex (Shanna SNL-551A) 15%;

[0048] SBR latex (Shandong Haifang HL-040A) 7%;

[0049]Styrene-acrylic emulsion (Yinyang YS-8161N) 5%;

[0050] Color Bitumen Emulsion 20%;

[0051] Tackifier emulsion (Eastman's Tacolyn 4177) 10%;

[0052] Carbon black 2%;

[0053] Silica powder 8%;

[0054] Talc 30%;

[0055] Water1%;

[0056] Dispersant (sodium tripolyphosphate) 0.5%;

[0057] Metal ion remover (EDTA) 0.5%

[0058] Coupling agent (BYK4500) 0.2%;

[0059] pH adjuster 0.3%;

[0060] Thickener 0.1%;

[0061] Defoamer 0.4%.

[0062] The high water pressure resistant node waterproof sealing paste is prepared as follows:

[0063] (1) drop the metered styrene-acrylic emulsion into the dispersing kettle, and control the rotating speed of 300~400rpm to stir 5min;

[0064] (2) after pre-mixing the metered dispersant and water that a...

Embodiment 2

[0069] A kind of waterproof sealing paste for high water pressure resistance nodes, the composition of which is as follows:

[0070] Neoprene Latex (Xintema Lipren-B) 9%;

[0071] SBR latex (Shandong Haifang HL-040A) 10%;

[0072] Styrene acrylic emulsion (Bardfu RS-300S) 11%;

[0073] Color Bitumen Emulsion 30%;

[0074] Tackifier emulsion (Eastman's Tacolyn3166) 5%;

[0075] Iron oxide black 5%;

[0076] Fumed silica 1%;

[0077] Calcined talc 24%;

[0078] water 3%;

[0079] Dispersant (sodium hexametaphosphate) 0.2%;

[0080] Metal ion remover (EDTA) 0.3%

[0081] Coupling agent (γ-(2,3-glycidoxy)propyltrimethoxysilane) 0.3%;

[0082] pH adjuster 0.3%;

[0083] Thickener 0.5%;

[0084] Defoamer 0.4%.

[0085] According to the method described in Example 1, the waterproof sealing paste for high water pressure resistance nodes was prepared.

Embodiment 3

[0087] A kind of waterproof sealing paste for high water pressure resistance nodes, the composition of which is as follows:

[0088] Neoprene latex (longevity CRL-50LK) 5%;

[0089] SBR latex (Shandong Haifang HL-040A) 10%;

[0090] Styrene acrylic emulsion (BASF S400F) 15%;

[0091] Color Bitumen Emulsion 25%;

[0092] Tackifier emulsion (Eastman's Tacolyn 5193) 9%;

[0093] Titanium dioxide 6%;

[0094] Calcined talc 27%;

[0095] water 1.3%;

[0096] Dispersant (sodium pyrophosphate) 0.4%;

[0097] Metal ion remover (disodium EDTA) 0.2%

[0098] Coupling agent (3-(2,3-glycidoxy)propyltriethoxysilane) 0.1%;

[0099] pH adjuster 0.5%;

[0100] Thickener 0.3%;

[0101] Defoamer 0.2%.

[0102] According to the method described in Example 1, the waterproof sealing paste for high water pressure resistance nodes was prepared.

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Abstract

The invention discloses high water pressure-resistant node waterproof sealing paste and a preparation method of the high water pressure-resistant node waterproof sealing paste. The high water pressure-resistant node waterproof sealing paste comprises the following components calculated in parts by mass: 5% to 15% of neoprene latex, 1% to 10% of SBR latex, 5% to 15% of a styrene-acrylic emulsion, 10% to 30% of a colored asphalt emulsion, 1% to 10% of a tackifier emulsion, 20% to 40% of a pigment filler, 1% to 10% of water, 0.1% to 0.5% of a metal ion remover, and 0.5% to 4% of other additives.The high water pressure-resistant node waterproof sealing paste has large tensile strength and elongation at break, good adhesion with various base surfaces, excellent water resistance and long-term water pressure resistance of 0.7MPa or above, and can be applied to the conventional node waterproof sealing, and can further be used for node waterproof sealing uses in projects requiring long-term water soaking, long-term high water pressure and the like.

Description

technical field [0001] The invention relates to the field of waterproof materials, and in particular, the invention relates to a waterproof sealing paste for high water pressure resistance nodes and a preparation method thereof. Background technique [0002] At present, the node waterproof sealing paste products on the market are generally modified asphalt, and some projects also use ordinary acrylic sealing paste for node sealing purposes. The traditional modified asphalt joint sealant generally has low strength, and the long-term water pressure resistance is generally about 0.1MPa. The traditional acrylic waterproof sealant has poor flexibility, poor long-term water immersion resistance, poor adhesion to various base surfaces, poor ability to adapt to substrate deformation and poor adhesion to various substrates. SUMMARY OF THE INVENTION [0003] Based on this, the present invention is to overcome the defects of the prior art and provide a waterproof sealing paste for h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J11/08C09J11/04C09J11/06
Inventor 杨小育龚兴宇刘勤欧志荣
Owner 重庆科顺新材料科技有限公司