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Rubber asphalt waterproof coating and preparation method thereof

A waterproof coating and rubber asphalt technology, applied in asphalt coatings, coatings, etc., can solve the problems of chemical reaction deterioration, loss, material performance attenuation, etc., and achieve the effects of slowing down chemical reactions, improving product stability, and enhancing coating effects

Active Publication Date: 2020-12-11
四川东方雨虹建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rubber asphalt waterproof coatings often need to add weakly alkaline powder materials such as calcium carbonate, so they are prone to chemical reactions and deterioration in acidic environments, resulting in attenuation of material properties, damage to, or even loss of waterproof functions.

Method used

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  • Rubber asphalt waterproof coating and preparation method thereof
  • Rubber asphalt waterproof coating and preparation method thereof

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preparation example Construction

[0022] The preparation method of coating agent of the present invention can be carried out with reference to prior art, preferably, described coating agent is made by following method:

[0023] (1) Heat the second-line distillate oil to 110-130°C and stir evenly;

[0024] (2) Then add petroleum resin in step (1), heat up to 135-145°C, stir and mix evenly;

[0025] (3) Finally, add low-molecular-weight polyethylene wax to step (2), heat up to 150-160°C, stir and mix evenly, and cool to obtain the coating agent;

[0026] Preferably, in step (3), the stirring and mixing time is 90-120min.

[0027] According to the present invention, preferably, the weight average molecular weight of the low molecular weight polyethylene wax is 1000-2200, preferably 1000-1800;

[0028] In terms of parts by mass, the second-line distillate oil is 45-90 parts, the petroleum resin is 1-15 parts, and the low molecular weight polyethylene wax is 1-20 parts; preferably, the second-line distillate oil ...

Embodiment 1

[0060] Put 44 parts of 70# petroleum asphalt and 15 parts of aromatic hydrocarbon base oil KA20 into a high-speed mixer, and stir at 400 rpm for 15 minutes at 140°C; Stir at 700rpm for 30min; after completion, add 3.2 parts of coating agent, and stir at 750rpm at 160°C for 20min; after completion, add 13 parts of SBR, and shear at 160°C at 1500rpm for 40min at high speed; complete Finally, add 0.8 parts of cross-linking agent TAIC, stir at 700rpm at 160°C for 30min; after completion, add 12 parts of 800 mesh heavy calcium, stir at 800rpm at 160°C for 30min; finally, turn on low-speed stirring , under the condition of 160°C, stirring at 400rpm for 40min to prepare rubber asphalt waterproof coating.

Embodiment 2

[0062] Add 45 parts of 70# petroleum asphalt and 15 parts of aromatic hydrocarbon base oil KA20 into a high-speed mixer, and stir at 400 rpm for 15 minutes at 140°C; Stir at 700rpm for 30min; after completion, add 3 parts of coating agent, and stir at 750rpm at 160°C for 20min; after completion, add 12.2 parts of SBR, and shear at 160°C at 1500rpm for 40min at high speed; complete Finally, add 0.8 parts of cross-linking agent TAIC, stir at 700rpm at 160°C for 30min; after completion, add 12 parts of 800 mesh heavy calcium, stir at 800rpm at 160°C for 30min; finally, turn on low-speed stirring , under the condition of 160°C, stirring at 400rpm for 40min to prepare rubber asphalt waterproof coating.

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Abstract

The invention discloses a rubber asphalt waterproof coating and a preparation method thereof. The rubber asphalt waterproof coating comprises 13-69 wt% of asphalt, 1-20 wt% of processing oil, 7-18 wt%of a rubber modifier, 10-50 wt% of a filler, 0.1-2.0 wt% of a stabilizer and 0.1-5.0 wt% of a coating agent based on the total weight of the rubber asphalt waterproof coating. The coating agent and the stabilizer are introduced on the basis of a conventional rubber asphalt waterproof coating, so that the rubber asphalt waterproof coating has the outstanding advantages of high acid resistance andhigh stability.

Description

technical field [0001] The invention belongs to the technical field of construction engineering waterproof materials, and more specifically relates to a rubber asphalt waterproof coating and a preparation method thereof. Background technique [0002] The rubber asphalt waterproof coating is made of rubber, asphalt, and processing oil as the main components, and is mixed with a temperature control agent and a filler to maintain a viscous paste within the service life. The coating can close the cracks and capillary pores of the base, can adapt to the complex construction work surface, can effectively absorb the stress of the base, and adapt to the deformation of the base; it will not solidify for a long time after contacting with the air, and always maintain the characteristics of viscous glue. Sticky to the touch. However, rubber asphalt waterproof coatings often need to add weakly alkaline powder materials such as calcium carbonate, so they are prone to chemical reactions a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/65C09D7/61C09D7/63
CPCC09D195/00C09D7/65C09D7/61C09D7/63C08L2205/025C08L2205/035C08K2003/265C08L91/00C08L9/06C08L57/02C08L23/06C08K3/26C08K5/34924
Inventor 白福平陈晓文刘金景吴士玮罗伟新侯建伟
Owner 四川东方雨虹建筑材料有限公司
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