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Water-proof coating of cement-based polymer

A waterproof coating and polymer technology, applied in the field of waterproof coatings, can solve the problems of no crack resistance, moisture resistance and low temperature flexibility, and achieve the effects of good film forming effect, good elasticity and long waterproof life.

Inactive Publication Date: 2017-01-11
河南省德嘉丽科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cement-based polymer waterproof coating products are green and environmentally friendly materials. It does not pollute the environment, has stable performance, excellent aging resistance, and long waterproof life; it is safe to use, convenient to construct, and easy to operate. It can be directly applied on wet bases without clear water; Strong bonding force, the bonding strength between the material and the cement base surface can reach more than 0.5MPa, and it has good bonding performance for most materials; the material has good elasticity and the elongation rate can reach 200%, so the crack resistance and moisture resistance Excellent flexibility at low temperature; good workability, no foaming, good film-forming effect, fast curing; this is similar to the current market products, which do not have crack resistance, moisture resistance and excellent low temperature flexibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A cement-based polymer waterproof coating is prepared by mixing liquid component A: powder component B at a volume ratio of 1:1, wherein:

[0024] The liquid component A is composed of the following raw materials in parts by weight:

[0025] BA-510TS (flexible acrylic emulsion) 400 parts

[0026] 92 parts of water

[0027] Defoamer 2 parts

[0028] 1 part fungicide

[0029] AMP-95 (multifunctional additive) 1 part

[0030] Thickener 4 parts

[0031] The powder component B is composed of the following raw materials in parts by weight:

[0032] Portland cement 200 parts

[0033] Heavy calcium (400 mesh) 50 parts

[0034] Quartz sand (80-120) 250 parts.

[0035] The water discharge index of embodiment 1 is as table 1:

[0036] Test items Test Results Solid content (standard ≥ 70%) 72% Tensile strength GB≥1.2mpa 2.81 2.2 1.8 Elongation at break GB≥200% 250.4 263 326 Low temperature flexible (radius 10mm rod) -10℃ no cracks W...

Embodiment 2

[0038] A JS polymer waterproof coating is prepared by mixing liquid component A: powder component B at a volume ratio of 1:2, wherein:

[0039] The liquid component A is composed of the following raw materials in parts by weight:

[0040] BA-510TS (flexible acrylic emulsion) 300 parts

[0041] 31 parts of water

[0042] Defoamer 2 parts

[0043] 1 part fungicide

[0044] AMP-95 (multifunctional additive) 1 part

[0045] The powder component B is composed of the following raw materials in parts by weight:

[0046] Portland cement 300 parts

[0047] Heavy calcium (400 mesh) 100 parts

[0048] Quartz sand (80-120) 263 parts

[0049] 3 parts of water reducer.

[0050] The water discharge index of embodiment 2 is as table 2:

[0051] Test items Test Results Solid content (standard ≥ 70%) 83% Tensile strength GB≥1.8mpa 2.51 2.2 Elongation at break GB≥80% 100.8% 100 Water impermeability (0.3mpa, 30min) impermeable

Embodiment 3

[0053] A cement-based polymer waterproof coating is prepared by mixing liquid A: powder B components with a volume ratio of 1:3, wherein:

[0054] Liquid A is made up of the raw materials of following parts by weight:

[0055] BA-510TS (flexible acrylic emulsion) 320 parts

[0056] 90 parts of water

[0057] Defoamer 2 parts

[0058] 1 part fungicide

[0059] AMP-95 (multifunctional additive) 1 part

[0060] thickener 2 parts

[0061] Powder B is composed of the following raw materials in parts by weight:

[0062] Portland cement 300 parts

[0063] Heavy calcium (400 mesh) 100 parts

[0064] Quartz sand (80-120) 263 parts

[0065] 3 parts of water reducer.

[0066] The water discharge index of embodiment 3 is as table 3:

[0067] Test items Test Results Solid content (standard ≥ 70%) 78.7% Tensile strength GB≥1.2mpa 2.16 2.2 Elongation at break GB≥200% 74.3 53.29 impermeability impermeable

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Abstract

The invention relates to water-proof coating of cement-based polymer. The water-proof coating of cement-based polymer is consisted of the mixture of liquid A and powder B, wherein the liquid A is prepared from flexible acrylic emulsion, water, defoamer, bactericide, multi-functional auxiliary agent and thickener, and the powder B is prepared from Portland cement, ground calcium carbonate, quartz sand and water reducer. This coating is an environmental material, no pollution to the environment and has stability, good ageing resistance and long water-proof life; it is safe for application, convenient for construction and easy for operation, which can be constructed directly on the wet surface without water; it has strong binding power and the bonding strength between the material and the cement base surface can be more than 0. 5 MPa and it have good adhesive property to most of the materials. The material has good elasticity, with a percentage elongation of 200%, therefore, the material has good crack resistance, moist-proof ability and flexibility at low temperature, with nice application property, no bubble, good film forming effect and fast solidification. Besides, the material is simple in construction that coating by brush, roller or scraper is allowable.

Description

technical field [0001] The invention belongs to the field of waterproof coatings, in particular to a cement-based polymer waterproof coating. Background technique [0002] Cement-based polymer waterproof coating products are green and environmentally friendly materials. It does not pollute the environment, has stable performance, excellent aging resistance, and long waterproof life; it is safe to use, convenient to construct, and easy to operate. It can be directly applied on wet bases without clear water; Strong bonding force, the bonding strength between the material and the cement base surface can reach more than 0.5MPa, and it has good bonding performance for most materials; the material has good elasticity and the elongation rate can reach 200%, so the crack resistance and moisture resistance Excellent flexibility at low temperature; good workability, no foaming, good film-forming effect, fast curing; compared with similar products currently on the market, it does not h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/00482C04B2111/27C04B2201/50C04B14/28C04B14/06C04B2103/302C04B2103/50C04B2103/44C04B2103/67C04B24/2641C04B2103/0068
Inventor 李明献任志军
Owner 河南省德嘉丽科技集团有限公司
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