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Organic fluorine modified solid water-based acrylic resin and preparation method thereof

A water-based acrylic and fluorine-modified technology, which is applied in application, coating, ink, etc., can solve the problems of harsh reaction conditions in continuous polymerization process, failure to reach products in large-scale production, and restrictions on wide application, and achieve good production stability, Good grinding performance and good leveling performance

Active Publication Date: 2015-09-09
连云港百利合新材料发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above preparation methods, due to the harsh reaction conditions of the continuous polymerization process, require high equipment, and the products obtained by the batch and semi-continuous polymerization processes generally have the disadvantages of high molecular weight and wide molecular weight distribution.
The existing related technologies are immature, large-scale production cannot meet the needs of products, and the production stability is poor, which greatly limits its wide application

Method used

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  • Organic fluorine modified solid water-based acrylic resin and preparation method thereof
  • Organic fluorine modified solid water-based acrylic resin and preparation method thereof
  • Organic fluorine modified solid water-based acrylic resin and preparation method thereof

Examples

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preparation example Construction

[0050] The invention also discloses a preparation method of the above-mentioned organic fluorine modified solid waterborne acrylic resin, which includes the following steps:

[0051] S1. Mixing 40-50 parts by weight of propylene glycol methyl ether and 40-50 parts of ethylene glycol monobutyl ether as a solvent is added to the reaction kettle, and a certain amount of protective gas is filled to protect the reaction;

[0052] S2. The temperature of the reaction kettle is raised to 90-120 degrees after 15 minutes, and mixture I is started to be added dropwise to the reaction kettle. The mixture I is composed of 21-39 parts by weight of acrylic monomer and 45 parts by weight of a-methylstyrene. -72 parts and 7-14 parts of polymerizable fluorine-containing monomer are mixed, and the mixture I is added dropwise within 10-30 minutes, and the reaction degree during the reaction is checked. Among them, the acrylic monomer is acrylic acid, methacrylic acid or a mixture thereof, and the poly...

Embodiment 1

[0078] Example 1: The organic fluorine-modified solid waterborne acrylic resin of this example consists of the following reaction materials in parts by weight: 30 kg of acrylic acid, 59 kg of a-methyl styrene, 10 kg of dodecafluoroheptyl methacrylate, 1 kg of benzoyl oxide was added to a mixed solvent consisting of 45 kg of propylene glycol methyl ether and 45 kg of ethylene glycol monobutyl ether, mixed into a solution and polymerized to obtain a solid waterborne acrylic resin.

[0079] The preparation method of the above organic fluorine modified solid waterborne acrylic resin includes the following steps:

[0080] S1. Add a mixed solvent consisting of 45kg of propylene glycol methyl ether and 45kg of ethylene glycol monobutyl ether into the reaction kettle, and fill a certain amount of protective gas to protect the reaction;

[0081] S2. The reaction kettle was heated to 100°C after 15 minutes, and the monomer mixture of 30 kg acrylic acid, 59 kg a-methyl styrene and 10 kg dodecaf...

Embodiment 2

[0086] Example 2: The organic fluorine-modified solid waterborne acrylic resin of this example consists of the following reaction materials in parts by weight: 21 kg of methacrylic acid, 45 kg of a-methyl styrene, and 7 kg of dodecafluoroheptyl methacrylate , 0.5 kg of benzoyl peroxide is added to a mixed solvent consisting of 40 kg of propylene glycol methyl ether and 40 kg of ethylene glycol monobutyl ether, mixed to form a solution and polymerized to obtain a solid aqueous acrylic resin.

[0087] The preparation method of the above organic fluorine modified solid waterborne acrylic resin includes the following steps:

[0088] S1. Add a mixed solvent consisting of 40 kg of propylene glycol methyl ether and 40 kg of ethylene glycol monobutyl ether into the reaction kettle, and fill a certain amount of protective gas to protect the reaction;

[0089] S2. After 15 minutes, the reactor was heated to 90°C, and the monomer mixture of 21kg methacrylic acid, 45kg a-methylstyrene and 7kg do...

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Abstract

The invention relates to the technical field of polymers, and in particular relates to organic fluorine modified solid waterborne acrylic resin and a preparation method thereof. The method comprises the steps of adding 21-39 parts of acrylic monomer, 45-72 parts of alpha-methyl styrene, 7-14 parts of polymerizable fluorine-containing monomer and 0.5-2 parts of initiator into a solvent to be mixed to form a solution and performing polymerization reaction to obtain the solid waterborne acrylic resin. According to the method, the solid waterborne acrylic resin is prepared by introducing alpha-methyl styrene and the polymerizable fluorine-containing monomer into a synthetic component and using a solution polymerization way, so that the molecular weight is low and the distribution is narrow, the polishing oil prepared by the solid waterborne acrylic resin has the advantages of high gloss, high leveling performance, good grinding and the like; and by using a mixed solvent of propylene glycol monomethyl ether and ethylene glycol monobutyl ether, the solubility of product resin is met, and meanwhile, the recovery of the solvent is facilitated, the method is convenient to operate, and the production efficiency is improved. The organic fluorine modified solid waterborne acrylic resin is easy to produce, and good in production stability, has low requirements on equipment, and is suitable for mass production.

Description

Technical field [0001] The invention relates to the technical field of high molecular polymers, in particular to an organic fluorine modified solid waterborne acrylic resin and a preparation method thereof. Background technique [0002] The solid waterborne acrylic resin has the characteristics of high gloss, good dispersion, excellent water resistance and abrasion resistance, fast drying speed, good transparency and good anti-blocking properties. It is widely used in flexographic and gravure water-based inks, water-based varnishes, Water-based calendering oil (polishing), water-based paint and water-based paint, etc. Since the application of solid waterborne acrylic resin requires its low molecular weight, uniform molecular weight distribution, transparent appearance, and resistance to discoloration, it is important to take into account its requirements and obtain transparent products and easy-to-produce preparation methods. [0003] At present, most solid waterborne acrylic resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/12C08F220/06C08F220/22C08F2/06C09D11/107C09D125/16
Inventor 姚杰冲
Owner 连云港百利合新材料发展有限公司
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