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Low-temperature-resistant asphalt waterproof coating and method for preparing same

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: 2017-07-21
深圳市朗迈新材料科技有限公司
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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 fractions: in parts by weight, mix 100 parts of waste engine oil and 30 parts of sulfuric acid solution with a mass fraction of 12% and heat to 80°C, then add 20 parts of white clay and 20 parts of magnetic block, and use a speed of 1500r / min Stir for 180min, stand still for 8h, extract the purified engine oil from the upper layer, put it in a vacuum distillation device, and distill off the components with a dry point lower than 390°C under the condition of a pressure of 0.1atm, and the remaining fraction is the engine oil fraction .

[0033] Preparation of modified additives: in parts by weight, after mixing 10 parts of engine oil fractions, 5 parts of methyl silicone oil, 5 parts of ethyl silicone oil and 5 parts of turpentine oil, use a 1000r / min mixer to stir for 5 minutes to obtain modified additives .

[0034] Preparation of modified plant ash: in parts by weight, burn 100 parts of rice straw into plant ash in a...

Embodiment 2

[0038] 1. Preparation:

[0039] Preparation of engine oil fractions: in parts by weight, mix 100 parts of waste engine oil and 30 parts of sulfuric acid solution with a mass fraction of 15% and heat to 100°C, then add 20 parts of white clay and 20 parts of magnetic block, and use a speed of 2000r / min Stir for 240min, stand still for 8h, extract the purified engine oil from the upper layer, put it in a vacuum distillation device, and distill off the components with a dry point lower than 390°C under the condition of a pressure of 0.1atm, and the remaining fraction is the engine oil fraction .

[0040] Preparation of modified additives: In parts by weight, after mixing 16 parts of machine oil fractions, 5 parts of methyl silicone oil, 10 parts of ethyl silicone oil, 5 parts of phenyl silicone oil and 5 parts of turpentine oil, stir for 5 minutes using a mixer at 1000 r / min , to obtain modified additives.

[0041]Preparation of modified plant ash: in parts by weight, burn 200 p...

Embodiment 3

[0045] 1. Preparation:

[0046] Preparation of engine oil fractions: 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% and heat to 90°C, then add 20 parts of clay and 20 parts of magnetic block, and use a speed of 1750r / min Stir for 210min, stand still for 8h, extract the purified engine oil from the upper layer, put it in a vacuum distillation device, and distill off the components with a dry point lower than 390°C under the condition of a pressure of 0.1atm, and the remaining fraction is the engine 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 stirred for 5 minutes with a mixer at 1000 r / min to obtain the modification aid.

[0048] Preparation of modified plant ash: in parts by weight, burn 150 parts of rice stalks into plant ash in a combustion furnace, grind ...

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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 architectural waterproof coatings, and in particular relates to a low-temperature-resistant asphalt waterproof coating and a preparation method thereof. [0003] 【Background technique】 [0004] Waterproof coating refers to a coating formed by coatings that can prevent rainwater or groundwater from seeping. According to the coating state and form, waterproof coatings are divided into: emulsion type, solvent type, reactive type and modified asphalt. Emulsion-based and solvent-based waterproof coatings generally have relatively high costs 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 buildin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/12C09D7/00
CPCC08L2201/08C08L2205/025C08L2205/035C09D7/20C09D7/61C09D7/62C09D7/63C09D195/00C08L3/12C08L7/00C08L83/04C08L93/00C08K13/06C08K2003/262C08K3/06C08K5/13C08K3/04C08K3/34
Inventor 覃淑兰
Owner 深圳市朗迈新材料科技有限公司
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