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A kind of low temperature resistant asphalt waterproof coating and preparation method thereof

A kind of asphalt waterproof coating, low temperature resistance technology, applied in the direction of asphalt coating, coating, etc., can solve the problems that are not suitable for large-scale use, affect the waterproof effect of buildings, easy to harden, crack and leak, etc., to increase added value and wax content Reduce and prevent the effect of volatile loss

Active Publication Date: 2019-07-26
深圳市朗迈建材工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Emulsion-based and solvent-based waterproof coatings generally cost relatively high and are not suitable for large-scale use. Therefore, most buildings in my country currently use asphalt waterproof coatings.
However, most of the current asphalt waterproof coatings have poor weather resistance and are prone to aging, especially in low temperature environments, which are easy to harden, crack and leak, which affects the waterproof effect of buildings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Preparation:

[0032] Preparation of engine oil fraction: In parts by weight, mix 100 parts of waste engine oil and 30 parts of 12% sulfuric acid solution and heat to 80°C, then add 20 parts of clay and 20 parts of magnetic block at a speed of 1500r / min Stir for 180min, let stand for 8h, extract the purified oil from the upper layer and put it in the vacuum distillation unit. After distilling out the components whose dry point is lower than 390℃ under the condition of 0.1atm, the remaining fraction is the oil fraction .

[0033] Preparation of the modifier: in parts by weight, mix 10 parts of engine oil fraction, 5 parts of methyl silicone oil, 5 parts of ethyl silicone oil and 5 parts of turpentine, and then use a 1000r / min mixer to stir for 5 minutes to obtain the modifier .

[0034] Preparation of modified plant ash: In parts by weight, 100 parts of rice stalks are burned into plant ash in a combustion furnace, then ground into powder and passed through a 200-mesh siev...

Embodiment 2

[0038] 1. Preparation:

[0039] Preparation of engine oil fraction: In parts by weight, mix 100 parts of waste engine oil and 30 parts of 15% sulfuric acid solution and heat to 100°C, then add 20 parts of clay and 20 parts of magnetic block at a speed of 2000r / min Stir for 240min, stand for 8h, extract the purified oil from the upper layer and put it in the vacuum distillation unit. After distilling out the components with a dry point below 390℃ under the condition of 0.1atm, the remaining fraction is the oil fraction .

[0040] Preparation of modifier: In parts by weight, mix 16 parts of engine oil fraction, 5 parts of methyl silicone oil, 10 parts of ethyl silicone oil, 5 parts of phenyl silicone oil and 5 parts of turpentine, and then use a 1000r / min mixer to stir for 5 minutes , Get the modified auxiliary agent.

[0041] Preparation of modified plant ash: In parts by weight, 200 parts of rice stalks are burned into plant ash in a combustion furnace, then ground into powder and ...

Embodiment 3

[0045] 1. Preparation:

[0046] Preparation of engine oil fraction: In parts by weight, mix 100 parts of waste engine oil and 30 parts of sulfuric acid solution with a mass fraction of 13.5%, then heat to 90°C, then add 20 parts of clay and 20 parts of magnetic block at a speed of 1750r / min Stir for 210min, let it stand for 8h, extract the purified oil from the upper layer and put it in the vacuum distillation unit. After distilling out the components whose dry point is lower than 390℃ under the condition of 0.1atm, the remaining fraction is the oil fraction .

[0047] Preparation of the modification aid: In parts by weight, 13 parts of engine oil fraction, 15 parts of phenyl silicone oil and 6.5 parts of turpentine were mixed, and then stirred with a 1000r / min mixer for 5 minutes to obtain the modification aid.

[0048] Preparation of modified plant ash: In parts by weight, 150 parts of rice stalks are burned into plant ash in a combustion furnace, then ground into powder and passe...

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Abstract

The invention belongs to the technical field of building waterproof coating, and particularly relates to low-temperature-resistant asphalt waterproof coating. The low-temperature-resistant asphalt waterproof coating comprises, by weight, 70-80 parts of asphalt, 3-5 parts of modification auxiliaries, 10-16 parts of modified plant ash, 6-8 parts of amylopectin, 3-6 parts of sulfur powder, 6-8 parts of natural rubber powder, 1-3 parts of anti-aging agents, 2-4 parts of 2, 6-di-tert cresol, 3-5 parts of carbon black and 1-3 parts of talc powder. The invention further discloses a method for preparing the low-temperature-resistant asphalt waterproof coating. The low-temperature-resistant asphalt waterproof coating and the method have the advantages that the low-temperature-resistant asphalt waterproof coating prepared by the aid of the method is excellent in low-temperature crack resistance and is still excellent in needle penetration in low-temperature environments, excellent toughness can be kept, and accordingly the low-temperature-resistant asphalt waterproof coating and the method have excellent market prospects.

Description

[0001] 【Technical Field】 [0002] The invention belongs to the technical field of building waterproof coatings, and specifically relates to a low-temperature resistant asphalt waterproof coating and a preparation method thereof. [0003] 【Background technique】 [0004] Waterproof paint refers to a paint film formed by paint and can prevent rainwater or groundwater from leaking. Waterproof coatings are divided into emulsion type, solvent type, reactive type and modified asphalt according to the state and form of the coating. Emulsion-based and solvent-based waterproof coatings generally cost relatively high and are not suitable for large-scale use. Therefore, currently most buildings in my country use asphalt waterproof coatings. However, most of the current asphalt waterproof coatings have poor weather resistance and are easy to age, especially in low temperature environments, which are easy to harden, crack and leak, which affects the waterproof effect of the building. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D7/61C09D7/63C09D7/20
CPCC08L2201/08C08L2205/025C08L2205/035C09D7/20C09D7/61C09D7/62C09D7/63C09D195/00C08L3/12C08L7/00C08L83/04C08L93/00C08K13/06C08K2003/262C08K3/06C08K5/13C08K3/04C08K3/34
Inventor 覃淑兰
Owner 深圳市朗迈建材工程有限公司