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A kind of water-based inorganic shop primer

A shop primer, inorganic technology, applied in anti-corrosion coatings, alkali metal silicate coatings, etc., can solve problems such as excessive zinc powder and affect the health of construction workers, reduce usage, reduce VOC emission levels, and ensure rust prevention. performance effect

Active Publication Date: 2017-12-08
YEJIAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that more zinc powder is added to the water-based inorganic zinc silicate shop primer, which affects the health of construction workers, and at the same time further reduce its VOC emissions, the invention provides a water-based inorganic shop primer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The weight ratio of component A and component B of water-based inorganic shop primer is 3:5, and the composition and content of component A and component B are as follows in parts by weight:

[0018] Composition and content of component A: 105 parts of water glass with a Baume degree of 38-42, 26 parts of silicon-acrylic emulsion, 1.1 parts of leveling agent, 1.3 parts of dispersant, 0.6 parts of corrosion inhibitor, and 30 parts of water;

[0019] Composition and content of component B: 92 parts of zinc powder, 65 parts of apatite powder, 17 parts of mica powder, 10 parts of calcium silicate powder, and 4 parts of silicon dioxide powder.

[0020] Slowly add component B of the water-based inorganic shop primer prepared in Example 1 to component A and continuously and fully stir until the required ratio is reached, then spray-coat the two sample steel plates. The results showed that the surface drying time of the paint film was about 3.5 minutes, and the dry film thickne...

Embodiment 2

[0022] The weight ratio of component A and component B of water-based inorganic shop primer is 3:5, and the composition and content of component A and component B are as follows in parts by weight:

[0023] Composition and content of component A: 108 parts of water glass with a Baume degree of 38-42, 27 parts of silicon-acrylic emulsion, 1.2 parts of leveling agent, 1.4 parts of dispersant, 0.7 parts of corrosion inhibitor, and 35 parts of water;

[0024] Composition and content of component B: 94 parts of zinc powder, 68 parts of apatite powder, 18 parts of mica powder, 11 parts of calcium silicate powder, and 5 parts of silicon dioxide powder.

[0025] Slowly add component B of the water-based inorganic shop primer prepared in Example 2 to component A and continuously and fully stir until the required ratio is reached, then spray-coat the two sample steel plates. The results showed that the surface drying time of the paint film was about 3.5 minutes, and the dry film thickne...

Embodiment 3

[0027] The weight ratio of component A and component B of water-based inorganic shop primer is 3:5, and the composition and content of component A and component B are as follows in parts by weight:

[0028] Composition and content of component A: 120 parts of water glass with a Baume degree of 38-42, 30 parts of silicon acrylic emulsion, 1.2 parts of leveling agent, 1.5 parts of dispersant, 0.8 parts of corrosion inhibitor, 40 parts of water;

[0029] Composition and content of component B: 100 parts of zinc powder, 72 parts of apatite powder, 18 parts of mica powder, 15 parts of calcium silicate powder, and 7 parts of silicon dioxide powder.

[0030] Slowly add component B of the water-based inorganic shop primer prepared in Example 3 to component A and continuously and fully stir until the required ratio is reached, then spray-coat the two sample steel plates. The results show that the surface drying time of the paint film is about 4 minutes, and the dry film thickness is ab...

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Abstract

The invention relates to coating compositions, and provides water-based inorganic shop primer for solving the problem that excessive zinc dust is added to water-based inorganic zinc silicate shop primer, and the physical health of constructors is affected and achieving the purpose that VOC emission is further lowered. The water-based inorganic shop primer is composed of a component A and a component B, wherein the weight ratio between the component A and the component B is 3:5. By means of the water-based inorganic shop primer, the influences on the health of the constructors of zinc oxide smoke and dust released in the welding, cutting and other machining process can be lowered remarkably; meanwhile, the VOC emission level is lowered remarkably, VOC emission is reduced to below 6%, anti-corrosion performance is guaranteed, and the environmental protection level of the water-based inorganic zinc silicate shop primer is further increased.

Description

technical field [0001] The invention relates to a coating composition, in particular to a water-based inorganic shop primer. Background technique [0002] Shop primer, also known as maintenance primer or pretreatment primer, refers to the primer of a certain thickness sprayed on steel after surface spraying to remove scale, rust and other impurities, as a preventive coating during processing and assembly engineering. Corroded primary steel surface treatment measures, usually such processes as rust removal and primer coating are carried out in the workshop, so the sprayed primer is called workshop primer. Shop primers are widely used in the construction of large steel structures such as ships. [0003] Shop primers are mainly composed of two categories: organic resin-based shop primers and inorganic shop primers. Among them, organic resin-based shop primers include epoxy zinc-rich shop primers, epoxy iron red shop primers, phosphating shop primers, etc.; inorganic shop prim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D133/04C09D5/10
Inventor 史优良史建群韩顺英黄秉慧赵秋平沈素英邓友东
Owner YEJIAN NEW MATERIAL