Fluororubber-containing modified waterproof coating

A technology of waterproof coating and fluorine-containing rubber, applied in the direction of coating, etc., can solve the problems of unsafe use, safety problems, toxicity, etc., and achieve the effect of simple raw material combination, good film forming effect and long storage time

Inactive Publication Date: 2017-09-01
阎玉珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waterproof coating of the invention has a relatively high proportion of α-methylstyrene linear terpolymer, which is toxic and unsafe to use. If this component is not used, it will affect the base adhesion of the waterproof coating
[0006] In summary, the existing fluorine-containing waterproof coatings have poor waterproof and sealing effects due to improper proportioning, or there are safety problems in use, and there are no relevant reports on the use of fluorine rubber as the main component of waterproof coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A modified waterproof coating of fluorine-containing rubber, in kg, each component is:

[0026] Fluororubber: a total of 35kg of copolymer of hexafluoropropylene, tetrafluoroethylene and ethylene. The preparation method of fluororubber is to add hexafluoropropylene, tetrafluoroethylene and ethylene to the internal mixer in sequence, and melt at 140°C for 2 hours;

[0027] Film-forming agent: 35kg of high polymer modified asphalt, wherein the preparation method of high polymer modified asphalt is to mix 90 # Mix asphalt and decompression third-line oil at a ratio of 3:1, heat to 150°C, swell for 45 minutes, grind with a colloid mill for 60 minutes, finally add fly ash, and stir at high speed for 30 minutes;

[0028] Natural surfactant: sorbitan monooleate 2kg;

[0029] High temperature improver: polypropylene 15kg;

[0030] Filling material: silica fume 10kg;

[0031] Flame retardant: zinc borate 4.5kg, barium borate 4.5kg;

[0032] pH adjuster: NaOH solution 4kg;

...

Embodiment 2

[0037] A modified waterproof coating of fluorine-containing rubber, in kg, each component is:

[0038] Fluororubber: 45kg of copolymer of hexafluoropropylene, tetrafluoroethylene and ethylene in total. The preparation method of fluororubber is to add hexafluoropropylene, tetrafluoroethylene and ethylene to the internal mixer in sequence, and melt at 160°C for 1 hour;

[0039] Film-forming agent: 25kg of high polymer modified asphalt, wherein the preparation method of high polymer modified asphalt is to mix 90 # Mix asphalt and decompression third-line oil at a ratio of 3:1, heat to 160°C, swell for 30 minutes, grind with a colloid mill for 120 minutes, finally add fly ash, and stir at high speed for 30 minutes;

[0040] Natural surfactant: sorbitan monooleate 5kg;

[0041] High temperature improver: polypropylene 10kg;

[0042] Filling material: light calcium 15kg;

[0043] Flame retardant: zinc borate 3kg, barium borate 3kg;

[0044] pH adjuster: NaOH solution 4kg;

[00...

Embodiment 3

[0049] A modified waterproof coating of fluorine-containing rubber, in kg, each component is:

[0050] Fluororubber: 40kg of copolymer of hexafluoropropylene, tetrafluoroethylene and ethylene in total. The preparation method of fluororubber is to add hexafluoropropylene, tetrafluoroethylene and ethylene to the internal mixer in sequence, and melt at 155°C for 1.5h ;

[0051] Film-forming agent: 30kg of high polymer modified asphalt, wherein the preparation method of high polymer modified asphalt is to mix 90 # Mix asphalt and vacuum third-line oil at a ratio of 3:1, heat to 150°C, swell for 40 minutes, grind with a colloid mill for 80 minutes, finally add fly ash, and stir at high speed for 30 minutes;

[0052] Natural surfactant: sorbitan monooleate 3.5kg;

[0053] High temperature improver: polypropylene 12kg;

[0054] Filling material: light calcium 13kg;

[0055] Flame retardant: zinc borate 4kg, barium borate 4.5kg;

[0056] pH adjuster: NaOH solution 1.5kg;

[0057...

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Abstract

The invention discloses a fluororubber-containing modified waterproof coating which is prepared from the following components in percentage by weight: 35-45 percent of fluororubber, 25-35 percent of a film forming agent, 2-5 percent of a natural surfactant, 10-15 percent of a high temperature improving agent, 10-15 percent of a filler, 6-9 percent of a flame retardant and 1-4 percent of a pH regulator. The invention also discloses a preparation method of the waterproof coating. The preparation method comprises the following steps: adding the fluororubber, the film forming agent, the natural surfactant and the flame retardant in a sealed reaction kettle, continuously adding the filler for reaction for 1-3h under the condition with the temperature being 80-100 DEG C, cooling to 40-50 DEG C, adding the pH regulator, and carrying out continuous reaction to obtain the fluororubber-containing modified waterproof coating. As for the fluororubber-containing modified waterproof coating, by using the fluororubber, the formation of the waterproof coating is promoted, the adhesion performance of the waterproof coating to an interface is improved, the waterproof effect is better, and the waterproof coating is safe and environmentally friendly to use and cannot bring negative effects.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a modified waterproof coating of fluorine-containing rubber. Background technique [0002] There are two types of waterproof materials on the market: one is polyurethane waterproof coatings. Such materials are generally made of polyurethane and coal tar as raw materials. The tar gas it volatilizes is highly toxic and not easy to remove, so it was banned in China in 2000. The polyurethane waterproof coating that is still on sale uses asphalt instead of coal tar as a raw material. However, when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; the other type is polymer cement-based waterproof coating. It is composed of a variety of water-based polymer emulsions and high-quality cement mixed with various additives. The flexibility of the polymer (resin) and the rigidity of the cement are integrated, making ...

Claims

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Application Information

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IPC IPC(8): C09D127/20C09D7/12
CPCC09D127/20C08K2003/2241C08K2003/265C08K2003/387C08K2201/014C08L2205/035C08L95/00C08L91/00C08L23/12C08K13/02C08K3/38C08K5/103C08K3/34C08K3/26C08K3/36C08K3/22
Inventor 阎玉珍
Owner 阎玉珍
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