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Latent-curing single-component color polyurethane waterproofing paint and preparation method thereof

A polyurethane waterproof, one-component technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of complex screening process, difficult formulation design, etc., to achieve good flexibility, strong market competitiveness, adhesion strong effect

Active Publication Date: 2014-04-23
郑家玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are many factors that determine the strength and elongation of waterproof coatings, such as the type and ratio of polyether, the content of isocyanate, the type of solvent, the type of additives, etc. The screening process is complicated and the formulation design is difficult

Method used

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  • Latent-curing single-component color polyurethane waterproofing paint and preparation method thereof
  • Latent-curing single-component color polyurethane waterproofing paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A latent curing one-component color polyurethane waterproof coating comprises the following components by weight:

[0054] Polyether 2000 20

[0055] Polyether 330N 6

[0056] Chlorinated paraffin 20

[0057] Powder 30

[0058] Dispersant 1

[0059] MDI-50 8

[0060] Catalyst 1

[0061] latent curing agent 4

[0062] Chain extender 4

[0063] solvent 6.

[0064] Among them, the dispersant is F-108 dispersant, the powder is light calcium carbonate, the chain extender is 1,4-butanediol, the latent curing agent is oxazolidine latent curing agent (208), and the catalyst is organotin T -12 (alias dibutyltin dilaurate).

Embodiment 2

[0066] A latent curing one-component colored polyurethane waterproof coating comprises the following components in parts by weight:

[0067] Polyether 2000 18

[0068] Polyether 330N 5

[0069] Chlorinated paraffins 18

[0070] Powder 28

[0071] Dispersant 0.8

[0072] MDI-50 6

[0073] Catalyst 0.8

[0074] latent curing agent 3

[0075] Chain extender 3

[0076] solvent 6.

[0077] Among them, the dispersant is F-108 dispersant, the powder is talcum powder, the chain extender is an amine chain extender, the latent curing agent is an amine latent curing agent, and the catalyst is organotin T-12.

Embodiment 3

[0079] A latent curing one-component colored polyurethane waterproof coating comprises the following components in parts by weight:

[0080] Polyether 2000 22

[0081] Polyether 330N 7

[0082] Chlorinated paraffins 22

[0083] Powder 32

[0084] Dispersant 1.2

[0085] MDI-50 10

[0086] Catalyst 1.2

[0087] latent curing agent 5

[0088] Chain extender 5

[0089] Solvent 8.

[0090] Among them, the dispersant is F-108 dispersant, the powder is carbon black, the chain extender is 1,4-butanediol, the latent curing agent is oxazolidine latent curing agent (208), and the catalyst is organotin T-12 .

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Abstract

The invention relates to the technical field of polyurethane waterproofing paint, and provides latent-curing single-component color polyurethane waterproofing paint. The latent-curing single-component color polyurethane waterproofing paint comprises the following components by weight: 18-22 parts of polyether 2000, 5-7 parts of polyether 330N, 18-22 parts of chlorinated paraffin, 28-32 parts of powder, 0.8-1.2 parts of dispersing agent, 6-10 parts of MDI-50, 0.8-1.2 parts of catalyst, 3-5 parts of latent curing agent, 3-5 parts of chain extender, and 6-8 parts of solvent. The latent-curing single-component color polyurethane waterproofing paint has such advantages as high strength, good toughness, good flexibility, low-temperature resistance, strong adhesive power with the basal plane, good adaptability, wide application field, convenience for construction and low dependency on the operation proficiency. The latent-curing single-component color polyurethane waterproofing paint not only satisfies the application field of the original single-component polyurethane waterproofing paint, but also can be suitable for the waterproofing requirements in such special fields as larger-deformation areas and low-temperature areas, so that the latent-curing single-component color polyurethane waterproofing paint has strong adaptability and strong market competitive advantages, and meets the higher and higher requirements of the market to the products.

Description

technical field [0001] The invention relates to the technical field of polyurethane waterproof coatings, in particular to a latent curing single-component colored polyurethane waterproof coating for concrete construction engineering and a preparation method thereof. Background technique [0002] At present, there are two forms of domestic polyurethane waterproof coatings, one-component and two-component. [0003] One component of the two-component polyurethane waterproof coating is a prepolymer of isocyanate and polyol, and the other component is a compound of active hydrogen, such as polyether polyol, MOCA, etc. During construction, the two components are mixed evenly in proportion, painted on the waterproof base, and cured to form a film, so as to play a waterproof role. However, during the construction of two-component polyurethane waterproof coatings, it is necessary to carry out on-site proportioning and mixing, which is troublesome to operate. At the same time, the qu...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D7/12C09D5/00C08G18/48C08G18/32
Inventor 郑家玉
Owner 郑家玉
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