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Preparation method of rubber asphalt waterproof coating

A waterproof coating, rubber asphalt technology, used in asphalt coatings, unspecified rubber coatings, anti-corrosion coatings, etc., can solve problems such as inability to meet, low strength, sticky tires, etc., to achieve excellent adhesion, excellent tensile strength. Effect

Inactive Publication Date: 2015-11-18
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to different formula components, water-based rubber asphalt waterproof coatings will have various physical and chemical properties. The strength of the products produced by the current common formula is weak (less than 0.3MPa), and it is easy to peel off and break when subjected to a large external force. , and due to the low strength, there will be phenomena such as sticking tires and destroying the waterproof layer during construction
After research, it is found that a single emulsifier cannot meet the requirements of high-strength rubber asphalt waterproof coatings for emulsified asphalt, because a single emulsifier has a fixed HLB value, and it cannot meet the HLB range required for complex asphalt emulsification

Method used

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  • Preparation method of rubber asphalt waterproof coating
  • Preparation method of rubber asphalt waterproof coating

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A preparation method for rubber asphalt waterproof coating, comprising the following steps:

[0020] Step 1, in parts by weight, after plasticizing 8 parts of polyurethane rubber and 10 parts of acrylate rubber at 70°C, add 3 parts of cocoic acid diethanolamide, 2 parts of sodium lignosulfonate, and sulfosuccinic acid 1 part, 2 parts of lecithin, kneading, tableting, sending into a shearing machine, adding 2 parts of EPDM rubber while cutting, to obtain rubber emulsion;

[0021] Step 2, in parts by weight, heat and dehydrate 50 parts of 10# petroleum asphalt, add to 2 parts of 4-octylphenol polyoxyethylene ether, 3 parts of sodium didodecylphenyl ether disulfonate, stearic acid In a mixed solution of 2 parts of potassium, 1 part of polyvinyl alcohol and 5 parts of water, stir to obtain asphalt emulsion;

[0022] Step 3, in parts by weight, 3 parts of rubber emulsion obtained in step 1, 2 parts of asphalt emulsion obtained in step 2, 3 parts of acrylic resin, 2 parts of...

Embodiment 2

[0027] A preparation method for rubber asphalt waterproof coating, comprising the following steps:

[0028] Step 1, in parts by weight, after plasticizing 10 parts of polyurethane rubber and 16 parts of acrylate rubber at 75°C, add 4 parts of cocoic acid diethanolamide, 3 parts of sodium lignosulfonate, and sulfosuccinic acid 2 parts, 4 parts of lecithin, kneading, tableting, sending into a shearing machine, adding 3 parts of EPDM rubber while cutting, to obtain rubber emulsion;

[0029] Step 2, in parts by weight, heat and dehydrate 60 parts of 10# petroleum asphalt, add 4 parts of 4-octylphenol polyoxyethylene ether, 6 parts of sodium didodecylphenyl ether disulfonate, stearic acid In the mixed solution of 4 parts of potassium, 2 parts of polyvinyl alcohol and 9 parts of water, stir to obtain asphalt emulsion;

[0030] Step 3, in parts by weight, combine 5 parts of rubber emulsion obtained in step 1, 4 parts of bitumen emulsion obtained in step 2, 4 parts of acrylic resin, ...

Embodiment 3

[0035] A preparation method for rubber asphalt waterproof coating, comprising the following steps:

[0036] Step 1, in parts by weight, after plasticizing 17 parts of polyurethane rubber and 22 parts of acrylate rubber at 80°C, add 6 parts of cocoic acid diethanolamide, 5 parts of sodium lignosulfonate, and sulfosuccinic acid 6 parts, 5 parts of lecithin, kneading, tableting, sending into a shearing machine, adding 4 parts of EPDM rubber while cutting, to obtain a rubber emulsion;

[0037] Step 2, in parts by weight, heat and dehydrate 75 parts of 10# petroleum asphalt, add 5 parts of 4-octylphenol polyoxyethylene ether, 7 parts of sodium didodecylphenyl ether disulfonate, stearic acid In a mixed solution of 6 parts of potassium, 4 parts of polyvinyl alcohol and 12 parts of water, stir to obtain asphalt emulsion;

[0038] Step 3, in parts by weight, combine 6 parts of rubber emulsion obtained in step 1, 7 parts of asphalt emulsion obtained in step 2, 5 parts of acrylic resin,...

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Abstract

The invention discloses a preparation method of a rubber asphalt waterproof coating. The preparation method comprises the following steps: performing thin-passing plastication of polyurethane rubber and acrylate rubber at first; then adding coconut diethanolamide, sodium lignin sulfonate, sulfonated succinate and lecithin; mixing and discharging; feeding into a shearing machine; adding ethylene-propylene-diene monomer while shearing to obtain a rubber emulsion; heating 10# petroleum asphalt for dehydration; adding the heated and dehydrated 10# petroleum asphalt into a 4-octylphenol polyoxyethylene ether, sodium lauryl diphenyl ether disulfonate, potassium stearate, polyvinyl alcohol and water mixed solution; stirring to obtain an asphalt emulsion; finally, mixing the obtain rubber emulsion and asphalt emulsion with acrylic resin, ethylene glycol ethyl ether, chlorinated polyethylene, silicon carbide whiskers, bentonite, hydroxyl silicone oil, an ethylene-vinyl acetate copolymer, a plasticizer, a foam killer and a pigment; stirring at 40-50 DEG C; leaving to cool to obtain the rubber asphalt waterproof coating. The rubber asphalt waterproof coating is high in tensile strength, good in high-temperature resistance and excellent in low-temperature flexibility.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of a rubber asphalt waterproof coating. Background technique [0002] Mixing various rubbers in asphalt can overcome the shortcomings of high-temperature softening and low-temperature embrittlement of asphalt itself, and improve the tear resistance in winter, and no cracks will appear at low temperature -25°C; the anti-melt performance in summer is also improved. It is improved and does not soften at high temperature. For this reason, it is necessary to modify the petroleum asphalt in order to meet the needs of construction and municipal engineering. [0003] There are many ways to modify asphalt. At present, rubber, resin and mineral fillers are commonly used for modification. Among them, rubber is an important modified material for asphalt. At present, rubber asphalt is stably dispersed in water with tiny particles to form an emulsi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D175/04C09D197/00C09D123/16C09D121/02C09D129/04C09D195/00C09D133/00C09D183/06C09D123/08C09D123/28C09D5/08C09D7/12
Inventor 陈平
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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