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Polyurethane primer

A polyurethane primer and polyurethane resin technology, applied in the field of material coating, can solve the problems of strong toxicity, unfavorable environmental protection, and large human injury, and achieve the effect of strong anti-corrosion and anti-rust ability, novel formula, and simple operation

Inactive Publication Date: 2011-05-04
天津市新宇彩板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main antirust raw materials for primers for precoated coiled steel sheets are strontium chromate and zinc chromate, which have strong antirust ability, good water solubility, and high temperature baking resistance, but are highly toxic and harmful to humans. Big, not conducive to environmental protection

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The amount of various raw materials used in the polyurethane primer formula is as follows:

[0028] Raw material name dosage (mass fraction)

[0029] E-03 (5% solid content) 45--50

[0030] Polyurethane resin 10--15

[0031] Catalyst 0.2--0.5

[0032] Anti-rust pigment 15--20

[0033] Titanium dioxide pigment 10--15

[0034] Ultrafine barium sulfate 5--10

[0035] Mixed solvent 10--15

[0036] Polyester resin 5--10

[0037] In order to further improve the characteristics and requirements of the product, its optimal polyurethane primer formula is:

[0038] Raw material name dosage (mass fraction)

[0039] E-03 (5% solid content) 47

[0040] Polyurethane resin 13

[0041] Catalyst 0.35

[0042] Antirust Pigment 17

[0043] Titanium dioxide pigment 12

[0044] Ultrafine Barium Sulfate 7.5

[0045] Mixed solvents 12

[0046] Polyester resin 7.5

[0047] It can be used after being physically synthesized by stirring.

[0048] The primer is a coating that comp...

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PUM

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Abstract

The invention discloses polyurethane primer, which is prepared by physically stirring and mixing 45 to 50 percent of E-03 (containing 5 percent of solid), 10 to 15 percent of polyurethane resin, 0.2 to 0.5 percent of catalyst, 15 to 20 percent of rust resisting pigment, 10 to 15 percent of titanium dioxide pigment, 5 to 10 percent of superfine barium sulfate, 10 to 15 percent of mixed solvent and 5 to 10 percent of polyurethane resin. The primer is a coating meeting environmental protection requirements, has good corrosion-resistance and rust resisting effects, high medium resistance, high quality and bright application prospect and contributes to environmental protection.

Description

Technical field [0001] The invention relates to a material coating, in particular to a polyurethane primer, which is suitable for various coiled steel plates. Background technique [0002] At present, the main anti-rust raw materials for primers for pre-coated coiled steel sheets are strontium chromate and zinc chromate, which have strong anti-rust ability, good water solubility, and high temperature baking resistance, but they are more toxic and more harmful to people. Big, not conducive to environmental protection. Contents of the invention [0003] The problem to be solved by the present invention is to provide a polyurethane primer to overcome the disadvantages of the existing primer. The primer is not only novel in formula, easy to operate, safe and non-toxic to use, does not contain heavy metal raw materials harmful to human body, but also has a more environmentally friendly coating film, strong anti-corrosion and anti-rust capabilities, meets the physical propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D167/00C09D7/12C09D5/08
Inventor 邢庆明
Owner 天津市新宇彩板有限公司
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