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Catalyst for accelerating ultraviolet curing and preparation method thereof

A catalyst and ultraviolet light technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve problems such as insufficient curing speed and large amount of photoinitiator

Inactive Publication Date: 2011-11-09
苏州市明大高分子科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of large amount of photoinitiator and insufficient curing speed in the existing UV curing system, the present invention provides a catalyst for such a preparation method that can accelerate the speed of UV curing and reduce the amount of photoinitiator

Method used

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  • Catalyst for accelerating ultraviolet curing and preparation method thereof
  • Catalyst for accelerating ultraviolet curing and preparation method thereof
  • Catalyst for accelerating ultraviolet curing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] It can be configured as follows:

[0032] Tin chloride (SnCl 2 ) 20%, cobalt chloride (CoCl 2 ) 28%, zinc stearate: 15%, isooctyl acrylate 37%. Add several substances to isooctyl acrylate in sequence, stir at 40-55°C for 2 hours, present a transparent and uniform state, and then package for use.

[0033] Disperse it in the formula in the following table 1, and press 80g / m on pine 2 The coating amount, after 120mj / cm 2 Cured into a film. Then according to the relevant standards, the relative curing performance in Table 2 can be compared. It can be seen that the curing speed is increased, and the hardness is also increased.

[0034] Table 1 Cured film formula

[0035]

[0036] TMPTA Trimethylolpropane Triacrylate; 1173 photoinitiator 2-hydroxy-methyl phenyl propane-1-one 2-Hydroxy-2-methyl-1-phenyl-1-propanone; HDDA 1,6-hexane Glycol Diacrylate; EO-NPGDA EthOxylated NeoPentylGlycol DiAcrylate.

[0037] Table 2 Related performance testing

[0038]

Embodiment 2

[0040] It can be configured as follows:

[0041] Tin chloride (SnCl 2 ) 35%, cobalt naphthenate 10%, zinc stearate: 15%, isooctyl acrylate 40%. Add several substances to isooctyl acrylate in sequence, stir at 40-55°C for 2 hours, present a transparent and uniform state, and then package for use.

[0042] Disperse in the formula in the following table 3 and make it on pine at 80g / m 2 The coating amount, after 120mj / cm 2 Cured into a film. Then according to the relevant standards, the relative curing performance in Table 4 can be compared. It can be seen that the curing speed is increased, and the hardness is also increased.

[0043] Table 3 Cured film formula

[0044]

[0045] Table 4 Related performance testing

[0046]

Embodiment 3

[0048] It can be configured as follows:

[0049] Tin chloride (SnCl 2 ) 10%, cobalt chloride (CoCl 2 ) 28%, zinc stearate: 32%, isooctyl acrylate 30%. Add several substances to isooctyl acrylate in sequence, stir at 40-55°C for 2 hours, present a transparent and uniform state, and then package for use.

[0050] Disperse in the following formula in Table 5, and press 80g / m on pine 2 The coating amount, after 120mj / cm 2 Cured into a film. Then according to the relevant standards, the relevant curing properties in Table 6 can be compared. It can be seen that the curing speed is increased, and the hardness is also increased.

[0051] Table 5 Cured film formula

[0052]

[0053] Table 6 Related performance testing

[0054]

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Abstract

The invention provides a catalyst for accelerating ultraviolet curing and a preparation method thereof. The catalyst comprises the following components in parts by weight: 2-55 parts of Sn<> salt, 2-28 parts of Co<> salt and 2-70 parts of Zn<> salt, mixture of three salts. The preparation method comprises the following steps: stirring the mixture of Sn<>, Co<> and Zn<> salts, which are proportionally weighed, for 20 minutes. Single functional group acrylate monomers can also be added to the catalyst to promote the dissolution of the components; and then, the preparation method comprises the following steps: adding the solid or liquid of the three salts proportionally weighed into the single functional group acrylate monomers; stirring at 40-55 DEG C for 2 hours until the mixture becomes transparent and uniform; and packaging for use. The catalyst can increase the curing speed by 5-20 m / min when being used in the formula of the ultraviolet curing system. Both the hardness and the wearability of the film are enhanced after being cured.

Description

Technical field [0001] The invention belongs to the field of preparation of ultraviolet light curing systems, and particularly relates to a preparation method of an auxiliary agent for accelerating the speed of ultraviolet light curing. Background technique [0002] UV curing technology is one of the most important curing methods in radiation curing technology. Due to its high efficiency, environmental protection, and excellent performance, UV curing technology has developed rapidly in my country in recent years, especially in coatings, inks, and adhesives. The fields are growing at an extremely fast rate. Because applications are prevented from becoming popular, the requirements for curing technology are getting higher and higher, so the importance of improving curing technology is even more important. [0003] Although UV curing is a relatively fast curing method, due to the different types of oligomers and monomers and different functional groups in the system, it is difficult to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/30B01J31/26B01J27/25B01J31/28
Inventor 余宗萍杨军
Owner 苏州市明大高分子科技材料有限公司
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