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 con

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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