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Waterborne inorganic zinc shop primer, and preparation and application thereof

A shop primer, inorganic zinc technology, applied in coatings, alkali metal silicate coatings, anti-corrosion coatings, etc., can solve problems such as low viscosity, affecting construction efficiency, and inability to meet the requirements of shop primer film thickness. The effect of excellent anti-corrosion properties

Inactive Publication Date: 2013-11-27
张家港保税区金企鹅贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of water-based inorganic zinc silicate coating has a low viscosity and is not suitable for automatic high-pressure airless spraying. It is easy to cause gun blockage during spraying and affect construction efficiency.
In addition, the particle size of the Zn powder used in it is about 45 μm, and the thickness of the sprayed coating is more than 100 μm, which cannot meet the requirements of the film thickness of the shop primer.

Method used

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  • Waterborne inorganic zinc shop primer, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0072] Preparation of base material: Add 200 kg of pure water, 5 kg of silicon dioxide, 1 kg of indium oxide, 1 kg of surfactant, and 3 kg of imidazoline quaternary ammonium salt into the paint mixing tank, and disperse for 10 minutes at a high speed of 1200 rpm. Then add the remaining powder and stir evenly to obtain the base material. The base material can be stored at room temperature for up to 6 months. After opening, it has good appearance, excellent fluidity and no deterioration.

[0073] Preparation of curing agent: Add 10 kg of acrylic acid monomer, 40 kg of styrene, 20 kg of methyl acrylate, and 20 kg of ethyl acrylate into the reaction kettle, heat to 93±5 degrees, react for 6 hours, add surfactant, defoaming agent, add water, and add lithium silicate after cooling to room temperature to obtain a curing agent.

[0074] The shop primer coating is prepared by uniformly mixing the base material and the curing agent at a weight ratio of 2:1.

Embodiment 2 6

[0075] Embodiment 2 anticorrosion water-based shop primer for six months

[0076] The formula of base material is as follows:

[0077] Bentonite 12kg

[0078] Spherical zinc powder (particle size is 2-5 microns) 456 kg

[0079] Flake zinc powder (long diameter 15-20 microns) 144 kg

[0080] Barium sulfate 280 kg

[0081] Magnesium silicate 115 kg

[0082] Ferrophosphorus powder 124 kg

[0083] 400 kg of water

[0084] Indium oxide 1.5 kg

[0085] MBTS (3 methyl thiophene) 4.5 kg

[0086] Surfactant RHODAPON PEH 1 kg (Rhodia Corporation)

[0087] Anti-sedimentation agent ST-3 2 kg (Shangtian Tifengsen Bentonite Factory, Xinyang City, Henan Province)

[0088] Defoamer BYK-019 0.7 kg (Bick company)

[0089] The formula of curing agent is as follows:

[0090] Sodium silicate 600 kg

[0091] Styrene 40 kg

[0092] Methyl acrylate 20kg

[0093] Ethyl acrylate 20 kg

[0094] 280 kg of water

[0095] Dispersant E-1308 10 kg (Jiangsu Haian Petrochemical Co., Ltd.)

[0...

Embodiment 3

[0100] Embodiment 3 12 months anticorrosion water-based shop primer

[0101] The formula of base material is as follows:

[0102] Bentonite 10kg

[0103] Silica 15 kg

[0104] Spherical zinc powder (particle size is 2-5 microns) 540 kg

[0105] Flake zinc powder (long diameter 15-20 microns) 40 kg

[0106] Phosphorus powder 50kg

[0107] 170 kg of water

[0108] Bismuth oxide 2 kg

[0109] DMTD 5kg

[0110] Heavy calcium 207 kg

[0111] Surfactant RHODAPON BOS 1 kg (Rhodia Corporation)

[0112] Anti-sedimentation agent ST-4 2.5 kg (Shangtianti Fengsen Bentonite Clay Factory, Xinyang City, Henan Province)

[0113] Defoamer BYK-019 0.8 kg (Bick company)

[0114] The formula of curing agent is as follows:

[0115] Potassium silicate 600 kg

[0116] Acrylic monomer: 20 kg

[0117] Styrene 40 kg

[0118] Methyl acrylate 20kg

[0119] Ethyl acrylate 20 kg

[0120] Water 310 kg

[0121] Dispersant E-1306 10 kg (Jiangsu Haian Petrochemical Co., Ltd.)

[0122] Defoame...

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Abstract

The invention discloses a waterborne inorganic zinc shop primer. The waterborne inorganic zinc shop primer is characterized by comprising a basic material and a curing agent, wherein the basic material comprises, by weight, 25 to 55 parts of zinc dust, 10 to 45 parts of a filling material, 5 to 20 parts of a pigment, 0 to 4 parts of rare earth oxide, 0.5 to 3 parts of a heterocyclic organic compound, 0.1 to 1 part of a surfactant, 18 to 38 parts of water, 0.2 to 2 parts of an anti-settling agent and 0.07 to 0.7 part of an antifoaming agent, the curing agent comprises, by weight, 15 to 30 parts of an inorganic polymer film-forming substance, 0 to 10 parts of an acrylic monomer, 3 to 8 parts of styrene, 0 to 5 parts of methyl acrylate, 0.5 to 2 parts of a dispersant, 14 to 35 parts of water, 0 to 0.05 part of an antifoaming agent and 0 to 0.15 part of a surfactant, and the fineness of the zinc dust is more than 800 meshes.

Description

technical field [0001] The invention relates to a shop primer and its preparation and application, in particular to a water-based inorganic zinc shop primer and its preparation [0002] preparation and application. Background technique [0003] Shop primer, also known as steel pretreatment primer and maintenance primer, refers to the first primer sprayed on the steel plate after spraying to a certain level. Its main function is to protect the steel plate during production (including welding, cutting, etc.) , pyrotechnic correction, etc.) are less subject to atmospheric corrosion, and are widely used in the construction of ships and large steel structures. For example, in the shipbuilding industry, it is generally equipped with a large-scale pretreatment and spraying shop primer production workshop. The purchased steel plate is directly sent to the workshop, and the automatic assembly line is used for shot blasting and derusting to a certain level, and then an automatic high...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D1/04C09D5/08C09D7/12C08F220/06C08F212/08C08F220/14C08F220/18
Inventor 顾钰霞
Owner 张家港保税区金企鹅贸易有限公司
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