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Preparation method of water-soluble acrylic acid solid resin

A technology of water-soluble acrylic and solid resin, which is applied in the field of preparation of acrylic solid resin, which can solve the problems of insufficient solvent resistance and small weather resistance, and achieve the effects of excellent printability, fast drying speed and outstanding compatibility

Inactive Publication Date: 2019-06-18
安徽红太阳新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other solid resins with a molecular weight of about 5,000 to 10,000, the small molecular weight makes the product slightly insufficient in weather resistance, adhesion, and solvent resistance

Method used

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  • Preparation method of water-soluble acrylic acid solid resin

Examples

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Effect test

preparation example Construction

[0020] A kind of preparation method of water-soluble acrylic acid solid resin, concrete steps are as follows:

[0021] 1) Prepare the required soft monomers, hard monomers, other functional monomers, other components, initiators, and flow aids as raw materials;

[0022] 2) Directly introduce soft monomers, hard monomers, other functional monomers, other components and initiators into the tubular reactor for mixing, and at the same time introduce flow aids to obtain mixed materials, and keep the mixed materials in the tubular reactor Maintain a certain flow rate to ensure that the mixed material stays in the tubular reactor for 1 to 120 minutes, the pressure of the tubular reactor is maintained at 0.2 to 3.5Mpa, and the temperature of the mixed material in the tubular reactor is maintained at 150 to 350°C. Flow out from the tubular reactor to obtain a fluid semi-finished product containing residual monomers;

[0023] 3) Devolatize the fluid semi-finished product containing res...

Embodiment 1

[0030] Embodiment one: the initiator of 1.1kg (2.36%) soft monomer, 29kg (62.11%) hard monomer, 13kg (27.84%) functional monomer, 0.3kg (0.64%), 3.29kg (7.05%) other Components and 2kg (4.28%) of flow aid are mixed and then introduced into the reactor for reaction. The temperature is kept at 240°C and the pressure is 0.5mpa. Material cooling obtains product (reference table 1);

Embodiment 2

[0031] Embodiment two: with the initiator of 0.4kg (2.35%) soft monomer, 11kg (64.71%) hard monomer, 5.5kg (32.35%) other functional monomers, 0.1kg (0.59%), 1.5kg (8.82%) ) flow aid mixed and then introduced into the reactor for reaction, the temperature is maintained at 230°C and the pressure is 0.3mpa, and then the material obtained after the reaction is subjected to devolatilization treatment, vacuum-0.07mpa, and the material after devolatilization is cooled to obtain the product (reference table 1);

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PUM

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Abstract

The invention discloses a preparation method of water-soluble acrylic acid solid resin. The preparation method includes: feeding soft monomers, hard monomers and other needed components into a reactorwhich can work continuous, and allowing the components to have polymerization reaction in a solvent system under the effect of an initiator to obtain the water-soluble acrylic acid solid resin. The preparation method has the advantages that the water-soluble acrylic acid solid resin prepared by the method is high in purity, narrow in distribution and low in viscosity, and the molecular weight ofthe water-soluble acrylic acid solid resin is a little higher than like products on the market; the water-soluble acrylic acid solid resin is fast in drying, high in glossiness and resistant to wear during actual use, the coating weather resistance and adhesive force of the resin are better than those of like products, and the resin is outstanding in compatibility and transitivity, extremely goodin printability and quite suitable for being applied to industry such as paint, gloss oil and ink.

Description

Technical field: [0001] The invention relates to the field of preparation of acrylic solid resin, in particular to a preparation method of water-soluble acrylic solid resin. Background technique: [0002] The high volatiles in the existing oleoresin products have a great impact on the environment and human health. The national environmental protection monitoring is becoming more and more strict, and the people's environmental protection awareness is becoming stronger and stronger, which makes the market of water-based ink, varnish and water-based paint more and more popular. The larger the size, the more acrylic emulsions are used in the market, but the emulsions are prone to residual emulsifiers and unreacted monomers, and there are many additives, and the VOC content is still high. The performance of the product is unstable, the weather resistance is average, it is easy to stick back, and the water resistance is poor, and it is mostly used in the low-end market. The quali...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F212/12C08F220/14C08F220/44C08F218/08C08F220/18C08F220/20C08F220/06C08F222/06C08F222/02
Inventor 吴焘王徽诸江徽张文飞卞月明张建吴小龙张清圣
Owner 安徽红太阳新材料有限公司