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One-component easy-release type hyperbranched-structural UV resin capable of inkjet printing and preparation method of resin

An inkjet printing, one-component technology, used in inks, household appliances, applications, etc., can solve the problems of difficult adhesion of inks, incompatibility of resin systems, poor compatibility, etc., to achieve high release properties and easy inking. properties, high release and slip properties, 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

These externally added additives have various problems, for example, they are incompatible with the resin system, and there will be precipitation during use; in addition, if the amount of addition is small, the purpose of release and smoothness cannot be achieved, and if the amount of addition is large, it will affect the coating. transparency and appearance
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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  • One-component easy-release type hyperbranched-structural UV resin capable of inkjet printing and preparation method of resin
  • One-component easy-release type hyperbranched-structural UV resin capable of inkjet printing and preparation method of resin
  • One-component easy-release type hyperbranched-structural UV resin capable of inkjet printing and preparation method of resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of difunctional carboxyl-terminated UV active monomers:

[0038] (A) Weigh 116g of hydroxyethyl acrylate, 98g of maleic anhydride and 0.107g of triphenylphosphine into the reaction kettle, stir, and slowly heat up to 90°C for 30 minutes;

[0039] (B) heat preservation reaction for 5 hours to prepare a difunctional carboxyl-terminated UV active monomer.

[0040] (2) Preparation of hyperbranched polysiloxane active body:

[0041] (A) Add 2.8g of vinyltrichlorosilane, 45g of dimethylmonochlorosilane, 150g of diethyl ether, 10g of water, and 0.1g of chloroplatinic acid into the reaction kettle, and stir for 6 hours at 30°C;

[0042] (B) Heating up to 100°C, vacuuming under reduced pressure to remove water and ether as a solvent to prepare a hyperbranched polysiloxane active body.

[0043] (3) Preparation of carboxyl-terminated hyperbranched polysiloxane modified body:

[0044] (A) 90 g of hyperbranched polysiloxane active body and 0.1 g of chloroplatinic ...

Embodiment 2

[0049] (1) Preparation of difunctional carboxyl-terminated UV active monomers:

[0050] (A) Weigh 116g of hydroxyethyl acrylate, 166g of methyltetrahydrophthalic anhydride and 2.82g of triethylamine into the reaction kettle, stir, and slowly heat up to 93°C in 40 minutes;

[0051] (B) heat preservation reaction for 3 hours to prepare a difunctional carboxyl-terminated UV active monomer.

[0052] (2) Preparation of hyperbranched polysiloxane active body:

[0053] (A) Add 3 g of vinyltrichlorosilane, 43.7 g of dimethyl monochlorosilane, 300 g of diethyl ether, 15 g of water and 1 g of chloroplatinic acid into the reaction kettle, and stir for 4 hours at 50° C.;

[0054] (B) Heating up to 150°C, vacuuming under reduced pressure to remove water and ether as a solvent, to prepare a hyperbranched polysiloxane active body.

[0055] (3) Preparation of carboxyl-terminated hyperbranched polysiloxane modified body:

[0056] (A) 30 g of difunctional carboxyl-terminated UV active monome...

Embodiment 3

[0061] (1) Preparation of difunctional carboxyl-terminated UV active monomers:

[0062] (A) Weigh 116g of hydroxyethyl acrylate, 178g of methylnadic acid anhydride and 0.294g of ammonium chloride into the reaction kettle, stir, and slowly heat up to 92°C in 25 minutes;

[0063] (B) heat preservation reaction for 4 hours to prepare a difunctional carboxyl-terminated UV active monomer.

[0064] (2) Preparation of hyperbranched polysiloxane active body:

[0065] (A) Add 3 g of vinyltrichlorosilane, 45 g of dimethyl monochlorosilane, 300 g of diethyl ether, 15 g of water and 1 g of phosphine coordination rhodium complex into the reaction kettle, and stir for 4.5 hours at 50° C.;

[0066] (B) Heating up to 130° C., vacuuming under reduced pressure to remove water and ether as a solvent, to prepare a hyperbranched polysiloxane active body.

[0067] (3) Preparation of carboxyl-terminated hyperbranched polysiloxane modified body:

[0068] (A) 20g of difunctional carboxyl-terminated...

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Abstract

The invention discloses one-component easy-release type hyperbranched-structural UV resin capable of inkjet printing and a preparation method of the resin. The hyperbranched-structural UV resin comprises a terminal carboxyl hyperbranched polysiloxane modified body, glycidyl (meth)acrylate (ether) and a catalyst A. According to the preparation method provided by the invention, the hyperbranched-structural UV resin prepared by the method has a solid content of 100%, has no solvent in the preparation process, and is green and environmentally friendly; a smoothing auxiliary agent does not need tobe added during use, an organosilicone molecular chain segment is bonded to a resin matrix, and on the basis of ensuring high release property, the resin has no precipitation after being used for a long term; and the resin has higher release property and smoothness, contains a certain amount of polar groups to ensure certain surface tension and a dyne value of a cured coating film for facilitatingink adhesion, and has high release property and easy inking property.

Description

technical field [0001] The invention relates to the field of UV curing resin synthesis, in particular to a single-component easy-release type UV resin with a hyperbranched structure that can be printed by inkjet printing 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. In the UV inkjet printing industry, it is usually required that the coating film after UV curing has good release and smoothness, that is, low surface tension or low surface friction coefficient. In order to achieve this effect, usually Slip additives will be added to the ink, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/38C08G77/20C09D11/30C09D11/101
CPCC08G77/20C08G77/38C09D11/101C09D11/30
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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