A kind of modified rosin resin and its preparation method and application

A technology for modifying rosin and resin, which is applied in application, rosin coating, rosin adhesive, etc. It can solve problems such as changing ink performance, ink emulsification, and destroying ink structure, so as to improve water resistance, avoid solvent residual defects, and improve performance. The effect of low consumption

Active Publication Date: 2020-09-08
HUIZHOU HUAHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, along with the deepening of research, it is found that the modified rosin resin prepared by rosin, epoxy resin, and maleic anhydride has hydrophilic carboxyl groups on its molecular chain, and when used as ink binder, it has relatively low water resistance. poor disadvantage
The ink binder has poor water resistance. After the ink contacts water, the water easily enters the ink, causing ink emulsification and viscosity drop, destroying the structure of the ink, changing the performance of the ink, and corresponding printing failures will occur

Method used

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  • A kind of modified rosin resin and its preparation method and application
  • A kind of modified rosin resin and its preparation method and application
  • A kind of modified rosin resin and its preparation method and application

Examples

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Embodiment 1

[0059] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0060] (1) Add 30.2g (0.1mol) of gum rosin and 34g (0.1mol) of epoxy resin DER331 into a 500mL three-neck bottle with mechanical stirring, raise the temperature to 140°C, pump negative pressure to promote the melting of the reactants, and then lower the temperature To 100°C, add 0.76g of triphenylphosphine and 12.2g (0.1mol) of benzoic acid, and stir at 100°C for 3 hours;

[0061] (2) Add 24.80 g (0.2 mol) of p-hydroxyanisole and 23.2 g (0.2 mol) of maleic acid, and react at 150°C for 3 hours to obtain modified rosin resin 1.

[0062] Test result shows, the structural formula of modified rosin resin one is as follows:

[0063]

Embodiment 2

[0065] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0066] (1) Add 45.3g (0.15mol) of gum rosin and 34g (0.1mol) of epoxy resin DER331 into a 500mL three-necked bottle with mechanical stirring, raise the temperature to 140°C, pump negative pressure to promote the melting of the reactants, and then lower the temperature To 90°C, add 0.76g of triphenylphosphine and 8.3g (0.05mol) of isophthalic acid, and stir at 90°C for 4 hours;

[0067] (2) Add 27g (0.15mol) of butyl hydroxyanisole and 17.4g (0.15mol) of maleic acid, and react at 140°C for 4 hours to obtain modified rosin resin II.

Embodiment 3

[0069] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0070] (1) In a 500mL three-necked bottle with mechanical stirring, add 60.5g (0.1mol) of polymerized rosin and 17.4g (0.1mol) of ethylene glycol diglycidyl ether, raise the temperature to 140°C, and pump negative pressure to promote the reaction of the reactants. Melt, then lower the temperature to 110°C, add 0.76g of triphenylphosphine and 8.3g (0.05mol) of phthalic acid, and stir at 110°C for 2 hours;

[0071] (2) Add 11.6g (0.1mol) 4-hydroxybutyl vinyl ether and 11.6g (0.1mol) maleic acid, and react at 160°C for 2 hours to obtain modified rosin resin III.

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Abstract

The present invention provides a modified rosin resin, a preparation method therefor, and an application thereof. The modified rosin resin is prepared by the reaction of rosin, a benzene ring-containing carboxylic acid, an epoxy compound, maleic acid and a derivative thereof, and a hydroxyl group-containing ether compound. The modified rosin resin provided by the present invention introduces a hydrophobic benzene ring into the rosin molecule and reacts the hydroxyl group-containing ether compound with a hydrophilic carboxyl group, to form a hydrophilic group having low hydrophilicity, thereby greatly improving the water resistance of the rosin resin, and does not use an organic solvent as a reaction medium in the preparation process of the modified rosin resin, thereby avoiding environmental pollution and solvent residue in the product, achieving safety of use and environmental protection.

Description

technical field [0001] The invention relates to the field of rosin modification, in particular to a modified rosin resin and its preparation method and application. Background technique [0002] my country is a big rosin producer, with an annual output of more than 500,000 tons of gum rosin, ranking first in the world. Rosin has many excellent properties, such as anti-corrosion, moisture-proof, insulation, adhesion, emulsification, softening, etc., and is widely used in various industrial sectors. Among them, one of the main applications of rosin is as a binder in the ink printing industry. [0003] The binder is the base material of the ground toner in ink manufacturing, the main mobile phase and the film-forming substance after the ink is dried, which directly determines the performance and printing effect of the ink, such as viscosity, adhesion, gloss and dryness. The technological innovation of the binder determines the technological innovation of the ink, which direct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09F1/04C09D11/08C09D193/04C09J193/04
CPCC09D11/08C09D193/04C09F1/04C09J193/04
Inventor 林剑雄陈传文郑学飞刘强
Owner HUIZHOU HUAHONG NEW MATERIAL
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