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Modified asphalt waterproof paint for buildings and production method thereof

A technology of modified asphalt and waterproof coatings, which is applied in the direction of asphalt coatings, anti-corrosion coatings, coatings, etc. It can solve the problems that technical indicators are difficult to meet the relevant requirements, the production of water-emulsified asphalt is cumbersome, and the binding force of polymer bodies is poor. Good waterproof effect, improved aging resistance, acid and alkali resistance, and enhanced chemical affinity

Inactive Publication Date: 2018-05-18
GUANGXI WUXUAN JINPAI WATERPROOF MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned two documents have modified asphalt to obtain better waterproof coatings, they have not modified the fillers used in the preparation of bitumen waterproof coatings, such as barium sulfate and talcum powder. properties, and unmodified fillers will have obvious disadvantages when filled in various polymers when used in the preparation of coatings: one is that the surface is hydrophilic and oleophobic, and the dispersion in the polymer is poor; the other is that it is compatible with the polymer body Poor binding force, can only play a role in compatibilization
However, the production of water-emulsified asphalt is cumbersome, and the biggest disadvantage is that because it is water-based, its film-forming compactness is poor, so waterproof and aging resistance are poor; and solvent-based asphalt cannot be used indoors due to the presence of a large amount of harmful organic substances.
At present, the water-based asphalt-based waterproof coatings on the market have poor stability, poor alkali resistance and acid resistance, and various technical indicators are difficult to meet the relevant requirements.

Method used

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  • Modified asphalt waterproof paint for buildings and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of modified asphalt waterproof coating for building, is made up of the raw material of following parts by weight:

[0028] 50 parts of 90# petroleum asphalt; 60 parts of water; 25 parts of styrene-butadiene latex, 5 parts of emulsifier, 2 parts of polyvinyl alcohol, 1 part of coupling agent tri-tert-butoxyvinylsilane; 5 parts of polyoxypropylene glyceryl ether; 3 parts of triethyl citrate, 0.1 part of rosin glyceride; 1 part of sodium polyacrylate; 10 parts of modified nano calcium carbonate.

[0029] The emulsifier is obtained by mixing N-alkyltrimethylammonium chloride and coconut acid diethanolamide in a weight ratio of 9:2.

[0030] The above-mentioned modified asphalt waterproof coating for construction, the preparation method of the modified nano-calcium carbonate is: dehydrate and dry the nano-calcium carbonate powder at 115°C, then add it to a high-speed mixer, stir and heat up, and stop heating at 90°C , adding chelating titanate coupling agent KR-201 w...

Embodiment 2

[0036] A kind of modified asphalt waterproof coating for building, is made up of the raw material of following parts by weight:

[0037] 55 parts of 90# petroleum asphalt; 67 parts of water; 26 parts of styrene-butadiene latex, 6 parts of emulsifier, 3 parts of polyvinyl alcohol, 2 parts of coupling agent γ-ethylenediaminotriethoxysilane; polyoxypropylene glyceryl ether 6 parts; 4 parts of triethyl citrate, 0.3 part of rosin glyceride; 2 parts of sodium polyacrylate; 12 parts of modified nano calcium carbonate.

[0038] The emulsifier is obtained by mixing N-alkyltrimethylammonium chloride and coconut acid diethanolamide in a weight ratio of 9:2.

[0039] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 117° C., then add it to a high-speed mixer, stir and heat up, stop heating at 90° C., and add chelate powder with a mass of 2.0% of the nano-calcium carbonate. Formed titanate coupling agent KR-...

Embodiment 3

[0045] A kind of modified asphalt waterproof coating for building, is made up of the raw material of following parts by weight:

[0046] 65 parts of 90# petroleum asphalt; 70 parts of water; 28 parts of styrene-butadiene latex, 7 parts of emulsifier, 4 parts of polyvinyl alcohol, 3 parts of coupling agent; 7 parts of polyoxypropylene glyceryl ether; 5 parts of triethyl citrate, 0.5 parts of rosin glyceride; 3 parts of sodium polyacrylate; 15 parts of modified nano-calcium carbonate.

[0047] The emulsifier is obtained by mixing N-alkyltrimethylammonium chloride and coconut acid diethanolamide in a weight ratio of 9:2. The coupling agent is a mixture of tri-tert-butoxyvinylsilane and γ-ethylenediaminotriethoxysilane.

[0048] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 120° C., then add it to a high-speed mixer, stir and heat up, stop heating at 90° C., and add 2.0% chelate powder of the na...

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Abstract

The invention relates to a modified asphalt waterproof paint for buildings. The modified asphalt waterproof paint is composed of the following raw materials by weight: 50-65 parts of 90# petroleum asphalt; 60-70 parts of water; 25-28 parts of styrene butadiene latex; 5-7 parts of an emulsifier; 2-4 parts of polyvinyl alcohol; 1-3 parts of a coupling agent; 5-7 parts of polyoxypropylene glycerol ether; 3-5 parts of triethyl citrate; 0.1-0.5 part of rosin glycerin ester; 1-3 parts of sodium polyacrylate; and 10-15 parts of modified nano calcium carbonate. The modified asphalt waterproof paint for buildings prepared by the method provided by the invention has good film compactness and high stability, can be used for buildings to form a waterproof layer, which has large bonding strength with the base surfaces of buildings and has good waterproof effect, moreover, after modification, the product has greatly improved water resistance, aging resistance, acid and alkali resistance and other properties, the making process is simple, and the modified asphalt waterproof paint overcomes the shortcomings of tedious making, poor film compactness, poor water resistance and aging resistance in previous water-emulsified asphalt paint.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a modified asphalt waterproof coating for buildings and its production [0002] method. Background technique [0003] The waterproof problem of buildings is not only related to people's work and living environment, but also affects the service life of buildings. Building waterproof materials refer to materials that prevent rainwater, groundwater, water supply and drainage, corrosive liquids, and moisture and steam in the air from intruding into buildings. The parts of the building that need to be waterproofed are mainly the roof, wall, ground and basement, and the construction is mainly carried out through coating, spreading, filling, pouring, bonding and other processes. Since the development of domestic waterproof materials, an industrial system with relatively complete categories and relatively complete production and application technologies has basically been formed. The t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D5/08C09D7/62C09D7/63C09D7/65
CPCC09D195/00C08K2003/265C08K2201/011C08L2201/08C08L2205/035C09D5/08C08L9/08C08L29/04C08L71/02C08K9/08C08K9/04C08K3/26C08K5/5425C08K5/544
Inventor 刘拥军刘永刚郑新国郑爱彬候尚春
Owner GUANGXI WUXUAN JINPAI WATERPROOF MATERIAL SCI & TECH CO LTD
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