Scratch-proof self-release ink-jet printing UV resin and preparation method thereof

An inkjet printing and resin technology, which is applied in the field of anti-scratch self-release inkjet printing UV resin and its preparation, can solve the problems of poor compatibility, affecting the transparency and appearance of the coating, and the ink is difficult to adhere firmly. Effect of low surface friction coefficient

Inactive Publication Date: 2019-07-16
无锡时生高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are various problems in these external additives, paraffin, long carbon chain small molecules, soaps (such as calcium stearate), long carbon chain amides (such as stearic acid amide, erucamide, oleic acid amide) class additives and The resin system is incompatible, and there will be precipitation during use; in addition, if the addition amount is small, the release and smoothness cannot be achieved, and if the addition amount is large, it will affect the transparency and appearance of the coating
Organosilicon additives have poor compatibility with UV resin systems, and will precipitate after long-term use, affecting product life and later performance stability; in addition, although organosilicon additives can greatly reduce the surface tension of the coating Formability and smoothness, but the low surface tension makes it difficult for the ink to adhere firmly on the coating surface, which affects the inkjet printing effect of the material

Method used

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  • Scratch-proof self-release ink-jet printing UV resin and preparation method thereof
  • Scratch-proof self-release ink-jet printing UV resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Preparation of organosilicon active body with double bond and silicon-hydrogen bond at the end group:

[0031] Weigh 2.8g of vinyltrichlorosilane, 45g of dimethylmonochlorosilane, 150g of diethyl ether and 10g of water into the reaction kettle, stir at 30°C for 6 hours; raise the temperature to 100°C, vacuumize to remove water and solvent ether , to obtain a silicone active body with a double bond and a silicon-hydrogen bond at the end group.

[0032] (2) Preparation of hydroxyl-containing rigid hyperbranched polyester UV resin:

[0033] Weigh 134g of dimethylolpropionic acid, 148g of phthalic anhydride and 0.282g of triphenylphosphine into the reaction kettle, stir, heat up to 90°C in 30 minutes, and react for 8 hours to obtain a carboxyl-terminated hyperbranched polyester containing a rigid skeleton; 28.2 g of glycidyl acrylate was added, and the reaction was carried out at a temperature of 90° C. for 4 hours to prepare a hydroxyl-containing rigid hyperbranched p...

Embodiment 2

[0037] (1) Preparation of organosilicon active body with double bond and silicon-hydrogen bond at the end group:

[0038] Weigh 3g of vinyltrichlorosilane, 43.7g of dimethylmonochlorosilane, 300g of ether and 15g of water into the reaction kettle, stir at 50°C for 4 hours; raise the temperature to 150°C, remove water and solvent ether under reduced pressure , to prepare hyperbranched polysiloxane active body.

[0039] (2) Preparation of hydroxyl-containing rigid hyperbranched polyester UV resin:

[0040] Weigh 134g of dimethylolpropionic acid, 166g of methyl tetrahydrophthalic anhydride and 6g of triethylamine into the reaction kettle, stir, heat up to 130°C in 30 minutes, and react for 4 hours to obtain a terminal with a rigid skeleton. Carboxyl hyperbranched polyester: add 105 g of glycidyl methacrylate, and heat-preserve at 130° C. for 2 hours to prepare a hydroxyl-containing rigid hyperbranched polyester UV resin.

[0041] (3) Preparation of anti-scratch self-release ink...

Embodiment 3

[0044] (1) Preparation of organosilicon active body with double bond and silicon-hydrogen bond at the end group:

[0045] Weigh 3g of vinyltrichlorosilane, 45g of dimethylmonochlorosilane, 300g of diethyl ether and 15g of water into the reaction kettle, stir at 50°C for 4 hours; raise the temperature to 150°C, remove water and solvent ether by vacuuming under reduced pressure, A hyperbranched polysiloxane active body is prepared.

[0046] (2) Preparation of hydroxyl-containing rigid hyperbranched polyester UV resin:

[0047] Weigh 134g of dimethylolpropionic acid, 152g of tetrahydrophthalic anhydride and 2.86g of ammonium chloride into the reaction kettle, stir, heat up to 110°C in 30 minutes, and react for 6 hours to obtain a carboxyl-terminated hyperbranched polyester containing a rigid skeleton Add 56 g of glycidyl methacrylate, and heat preservation reaction at 110° C. for 3 hours to obtain a hydroxyl-containing rigid hyperbranched polyester UV resin.

[0048] (3) Prepar...

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PUM

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Abstract

The invention discloses a scratch-proof self-release ink-jet printing UV resin and a preparation method thereof. The scratch-proof self-release ink-jet printing UV resin comprises an organosilicon active body, a hydroxyl-containing rigid hyperbranched polyester UV resin and a catalyst A, wherein the terminal group of the organosilicon active body simultaneously contains double bonds and silicon hydrogen bonds. A polyester core with a rigid hyperbranched structure and a large number of terminal reaction groups ensure that the hardness of the cured resin is 3H or above, and a scratch-proof effect is excellent. The prepared UV resin has 100% solid content, and is solvent-free and environment-friendly. In a using process, smoothing auxiliaries such as paraffin, long carbon chain small molecules, soaps, long carbon chain amides and organosilicon do not need to be added externally, meanwhile, an organosilicon molecular chain segment is bonded in a resin matrix, and on the basis of ensuring ahigh release property, precipitation is avoided even if the scratch-proof self-release ink-jet printing UV resin is used for a long time. The resin has high release property and smoothness, and meanwhile contains a certain amount of polar groups, it ensures that a cured coating film has a certain surface tension and dyne value, ink adhesion is facilitated, and the scratch-proof self-release ink-jet printing UV resin has high release property and easiness in inking.

Description

technical field [0001] The invention relates to the field of UV curable resin synthesis, in particular to an anti-scratch self-release inkjet printing UV resin and a preparation method thereof. Background technique [0002] UV light curing technology has become a new technology of green coating materials with great development potential due to its advantages of environmental protection, no VOC emissions, low energy consumption, and fast curing. At present, UV curable resins have been widely used in the inkjet printing industry, and a large amount of UV matrix resins are required in the process of formulating UV inks for inkjet printing. Anti-scratch inkjet printing UV coatings are widely used in industries such as automobiles, building materials, packaging and decoration, and anti-scratch inkjet printing UV coatings usually require good release and smoothness, that is, lower surface tension or a lower surface coefficient of friction. In order to achieve this effect, slip a...

Claims

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Application Information

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IPC IPC(8): C08G77/42C09D11/30C09D11/101C08G63/91C08G63/02C08G77/20C08G77/12
CPCC08G63/02C08G63/91C08G77/12C08G77/20C08G77/445C09D11/101C09D11/30
Inventor 岳利培刘怡婷
Owner 无锡时生高分子科技有限公司
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