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 exi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example 1

[0054] The rubber-asphalt composite material with superior cold resistance is composed of the following components:

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

[0056] Anionic emulsified asphalt is commercially available.

[0057] The components are mixed in proportions at room temperature to obtain a rubber asphalt composite material with superior cold resistance.

[0058] Cold resistance test:

[0059] Put the obtained composite material as component A in a spray gun;

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

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

Example Embodiment

[0063] Example 2

[0064] The rubber-asphalt composite material with superior cold resistance is 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 part of antifoaming agent, 2.5 parts of fatty acid soap, 0.5 part of p-nonylphenyl polyethoxylate, 0.5 part of sodium dibutylphenylphenol disulfonate, 0.5 part of hindered amine light stabilizer; pH value of the system is 9-13.

[0066] The components are mixed in proportions at room temperature to obtain a rubber asphalt composite material with superior cold resistance.

[0067] The cold resistance test method is the same as that of Example 1. The result: the waterproof coating film using the composite material of Example 2 did not undergo brittle failure at -40°C.

Example Embodiment

[0068] Example 3

[0069] The rubber-asphalt composite material with superior cold resistance is 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 part of antifoaming agent, 2.5 parts of alkyl diphenyl ether disulfonate, alkyl 0.5 part of aryl sulfonate sodium, 0.5 part of olein sulfonate sodium salt, 0.5 part of Hals; pH value of the system is 9-13.

[0071] The components are mixed in proportions at room temperature to obtain a rubber asphalt composite material with superior cold resistance.

[0072] The cold resistance test method is the same as that of Example 1. The result: the waterproof coating film using the composite material of Example 3 did 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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