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Ultraviolet (UV) curing silicon steel insulating coating and preparation method thereof

A technology of insulating coatings and ultraviolet light, which is applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems that have not been found and reported in use, and achieve the effects of increasing curing rate, reducing VOC content, and simple production process

Inactive Publication Date: 2016-08-17
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, UV-curable coatings have been applied in the field of metal substrates, but no reports have been found on the use in the field of silicon steel insulation coatings.

Method used

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  • Ultraviolet (UV) curing silicon steel insulating coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method of ultraviolet curing silicon steel insulation coating specifically comprises the following steps:

[0026] 1) Take polyurethane prepolymer (model: T52, Xiamen Aikema Chemical Co., Ltd.) and epoxy resin prepolymer (model: NPEL-128, Henan Zepu Chemical Products Co., Ltd.) respectively, and the mass ratio is 1:1 , with a total weight of 130g, 45g of methyl methacrylate, mixed in the reactor, heated to 60°C, and stirred at a speed of 500r / min for 60min for later use;

[0027] 2) Take an appropriate amount of deionized water in another reactor (the amount of deionized water added accounts for 20-40% of the total mass of the insulating coating, and the amount of deionized water added in this embodiment is 300g), and add a silicone dispersant 5g (Model: SN-5040, Zhongya, Taiwan), after stirring evenly, add 50g of nano-silica (Model: TSP, Nanjing Tianxing New Material Co., Ltd.), 30g of nano-titanium dioxide (Model: EFU-G100, Shanghai EFU Industri...

Embodiment 2

[0030] A kind of preparation method of ultraviolet curing silicon steel insulation coating specifically comprises the following steps:

[0031] 1) Take polyurethane prepolymer (model: T52, Xiamen Aikema Chemical Co., Ltd.) and isocyanate prepolymer (model: TDI-80, Jiangyin Zhuqing Chemical Co., Ltd.) respectively, with a mass ratio of 1:0.8 and a total weight of 150g, 45g ethyl methacrylate, add to the reactor and mix, heat to 60°C, stir at 500r / min for 60min and set aside;

[0032] 2) Take an appropriate amount of deionized water (250g) in another reactor, add 11g of silicone dispersant (model: SN-5040, Taiwan Zhongya), stir well and then add 40g of nano silicon dioxide (model: TSP, Nanjing Tianxing New Material Co., Ltd.), nano-titanium dioxide 40g (model: EFU-G100, Shanghai Yifu Industrial Co., Ltd.), nano-barium sulfate 20g (model: micro, Shanghai Jinghong Industrial Co., Ltd.), aluminum dihydrogen phosphate 55g and Dihydrogen zinc phosphate 35g, 1200r / min high-speed stir...

Embodiment 3

[0035] A kind of preparation method of ultraviolet curing silicon steel insulation coating specifically comprises the following steps:

[0036]1) Take epoxy resin prepolymer (model: NPEL-128, Henan Zepu Chemical Products Co., Ltd.) and isocyanate prepolymer (model: TDI-80, Jiangyin Zhuqing Chemical Co., Ltd.) respectively, and the mass ratio is 1: 1. The weight is 120g in total, 50g of vinyl acetate is added to the reactor and mixed, heated to 60°C, stirred at a speed of 500r / min for 60min, and then set aside;

[0037] 2) Take an appropriate amount of deionized water (350g) in another reactor, add 12g of silicone dispersant (model: SN-5040, Taiwan Zhongya), stir well and then add 45g of nano silicon dioxide (model: TSP, Nanjing Tianxing New Material Co., Ltd.), nano-titanium dioxide 45g (model: EFU-G100, Shanghai Yifu Industrial Co., Ltd.), nano-barium sulfate 25g (model: micro, Shanghai Jinghong Industrial Co., Ltd.), aluminum dihydrogen phosphate 50g and Zinc dihydrogen pho...

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Abstract

The invention relates to an ultraviolet (UV) curing silicon steel insulating coating and a preparation method thereof. The insulating coating comprises the following raw materials by mass percent: 10-25% of prepolymers, 3-10% of active diluting monomers, 10-28% of pigments and fillers, 1-8% of photoinitiators, 2-10% of additives and the balance of water. The energy loss can be effectively reduced, the curing rate can be increased and the green and environmental protection aims can be achieved by adopting the developed UV curing silicon steel insulating coating, and meanwhile, the formed silicon steel insulating coating also has excellent heat and humidity resistance, solvent resistance, weldability, blanking property, adhesiveness and corrosion resistance, high interlamination resistance, and the like and meets the silicon steel industrial production requirements.

Description

technical field [0001] The invention relates to the technical field of silicon steel insulating coatings, in particular to an ultraviolet light curing silicon steel insulating coating and a preparation method thereof. Background technique [0002] Ultraviolet curing (UV curing) silicon steel insulating coating uses the energy of ultraviolet light to initiate polymerization and crosslinking reactions between single molecules of photosensitive resin materials in insulating coatings, forming a uniform and dense insulating coating on the surface of silicon steel. UV-curable coatings are generally composed of prepolymers, reactive diluent monomers, pigments and fillers, photoinitiators and additives, among which prepolymers and pigments and fillers play the main role. The traditional silicon steel insulating coatings all adopt the heat curing process, that is, the liquid components in the insulating coating are removed by electric heating or open flame heating, and an insulating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D5/08C09D5/25C09D7/12C09D7/00
CPCC09D4/06C09D5/08C09D7/20C09D7/61
Inventor 张振海王立涛董梅占云高何峰夏雪兰丰慧
Owner MAANSHAN IRON & STEEL CO LTD
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