Rubber asphalt composite material with excellent cold resistance

A composite material and rubber asphalt technology, applied in asphalt coatings, coatings and other directions, can solve the problems of water seepage of the coated object, affecting the use, and increasing the cost, and achieve the effect of controllable cost and convenient production.

Inactive Publication Date: 2016-06-01
NINGXIA NINGDONG RUIHUA NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the rubber content can properly improve the cold resistance of the mixed material, but the price of rubber is relatively high. Excessively increasing the rubber content will cause a substantial increase in cost, and the amount of rubber content will affect the quality of the mixed material, such as cold resistance, etc.
Most of the existing asphalt rubber mixed materials have cold resistance at -10-(-20) ℃ temperature. When the temperature is lower than this temperature, the surface of the coated object such as concrete, resin material, etc. will suddenly crack, and the mixed material will also crack. In turn, water seepage occurs on the coated object, which affects its use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Rubber asphalt composite material with excellent cold resistance, composed of the following components:

[0055] 75 parts of anionic emulsified asphalt; 25 parts of anionic neoprene latex; 7 parts of DBTP; 0.5 parts of defoamer, 0.5 parts of pine tar soap, 1.0 parts of sodium naphthalenesulfonic acid condensate, 1.5 parts of sodium alkyl sulfate, hydrophilicity 2 -1.0 part of (2-hydroxyphenyl)-benzotriazole ultraviolet absorber; the pH value of the system is 9-13.

[0056] Anionic emulsified bitumen is commercially available.

[0057]Mix the components in proportion at room temperature to obtain a rubber asphalt composite material with excellent cold resistance.

[0058] Cold resistance test:

[0059] The resulting composite material is placed in a spray gun as component A;

[0060] The curing agent (calcium chloride or sodium chloride, the concentration is 10-20wt%) is placed in another spray gun as component B;

[0061] Turn on the spray gun, mix and spray the two...

Embodiment 2

[0064] Rubber asphalt composite material with excellent cold resistance, composed of the following components:

[0065] 65 parts of anionic emulsified asphalt; 15 parts of anionic styrene-butadiene rubber latex; 20 parts of anionic nitrile rubber latex; 5 parts of DBP; 1.0 parts of defoamer, 2.5 parts of fatty acid soap, 0.5 parts of p-nonylphenyl polyethoxylate, 0.5 part of sodium dibutylphenylphenol disulfonate, 0.5 part of hindered amine light stabilizer; the pH value of the system is 9-13.

[0066] Mix the components in proportion at room temperature to obtain a rubber asphalt composite material with excellent cold resistance.

[0067] The cold resistance test method is the same as that of Example 1, and the result: the waterproof coating film using the composite material of Example 2 still has no brittle failure at -40°C.

Embodiment 3

[0069] Rubber asphalt composite material with excellent cold resistance, composed of the following components:

[0070] 78 parts of anionic emulsified asphalt; 12 parts of anionic EPDM rubber latex; 10 parts of anionic polyisoprene rubber latex; 4 parts of DOA; 1.0 parts of defoamer, 2.5 parts of alkyl diphenyl ether disulfonate, alkyl 0.5 part of sodium aryl sulfonate, 0.5 part of olein sulfonate sodium salt, and 0.5 part of Hals; the pH value of the system is 9-13.

[0071] Mix the components in proportion at room temperature to obtain a rubber asphalt composite material with excellent cold resistance.

[0072] The cold resistance test method is the same as that of Example 1, and the result: the waterproof coating film using the composite material of Example 3 still does not undergo brittle failure at -40°C.

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PUM

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Abstract

The invention discloses a rubber asphalt composite material with excellent cold resistance. The rubber asphalt composite material comprises the following components: 50 to 80 parts of anionic emulsified asphalt, 20 to 50 parts of anionic rubber latex, 2 to 15 parts of a plasticizer, and 2.0 to 7.0 parts of an additive, wherein the pH value is 9 to 13, and the sum of parts by weight of the anionic emulsified asphalt and that of the anionic rubber latex is 100. According to the rubber asphalt composite material with excellent cold resistance, a waterproof coating film adopting the composite material provided by the invention can be resistant to minus 40 DEG C temperature, has softness, cannot crack and still has a waterproof function even though an object to be coated crakes immediately, and has high resistance.

Description

technical field [0001] The present invention relates to the field of asphalt. More specifically, it relates to a rubber-asphalt composite material superior in cold resistance. Background technique [0002] In general, many waterproofing materials such as coating waterproofing materials and seat waterproofing materials contain polymer substances. Especially when asphalt is used as raw material to make waterproof materials, asphalt and rubber can be mixed to obtain a mixed material to obtain high mechanical strength, elasticity, heat distortion temperature, cold resistance, durability, etc. Increasing the rubber content can properly improve the cold resistance of the mixed material, but the price of rubber is relatively high. Excessively increasing the rubber content will cause a substantial increase in cost, and the amount of rubber content will affect the quality of the mixed material, such as cold resistance. Most of the existing asphalt rubber mixed materials have cold r...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D7/12
Inventor 魏延玲
Owner NINGXIA NINGDONG RUIHUA NEW MATERIAL TECH CO LTD
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