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Aqueous acrylic resin, and preparation method and application thereof

A technology of water-based acrylic acid and methacrylic acid, applied in the chemical field, can solve the problems of high production cost of polyurethane, harmfulness of solvent-based resin to human body, environmental pollution, etc., and achieve the effects of cost saving, improved molding performance, and excellent physical and chemical properties

Active Publication Date: 2013-11-20
佛山市南海高拓包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide a kind of water-based acrylic resin and its preparation method and application, aiming to solve the pollution of the environment and the waste of cost caused by the volatilization of the organic solvent in the existing solvent-based resin, the production cost of polyurethane is higher and the solvent The problem that the type resin is harmful to the human body during use

Method used

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  • Aqueous acrylic resin, and preparation method and application thereof

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preparation example Construction

[0048] The preparation method of said water-based acrylic resin is also provided in the present invention, such as figure 1 shown, including the following steps:

[0049] Step 1: Add deionized water into the reactor, heat up to 40~70°C, add emulsifier, continue to heat up to 80°C, add initiator;

[0050] Step 2: Mix the monomers methyl methacrylate, isobornyl methacrylate, styrene and methacrylic acid completely, then drop them into the reactor, and the dropping rate is controlled within 2 to 6 hours to complete the dropping;

[0051] Step 3: After the addition of the monomer is completed, keep the temperature at 77~82°C for 2~3 hours, then raise the temperature to 90~92°C for 3 hours, and then cool and discharge.

[0052] Wherein, in the step 1, the amount of deionized water added is twice the weight of the water-based acrylic resin.

[0053]The polymerization implementation method of the above formula is to use high-efficiency emulsifier EF-810 with traditional sodium dode...

Embodiment 1

[0057] Described waterborne acrylic resin, according to weight percentage, is made up of following components:

[0058] Methyl methacrylate 50%

[0059] Styrene 20%

[0060] Isobornyl Methacrylate 23%

[0061] Methacrylic acid 4.5%

[0062] Sodium Lauryl Sulfate 1%;

[0063] EF-810 0.5%

[0064] Potassium persulfate 1%.

[0065] The preparation method of described waterborne acrylic resin is as follows:

[0066] Step 1: Add deionized water into the reactor (the amount of deionized water added is twice the weight of the water-based acrylic resin), heat up to 40°C, add an emulsifier, continue to heat up to 80°C, and add an initiator;

[0067] Step 2: Mix the monomers methyl methacrylate, isobornyl methacrylate, styrene and methacrylic acid completely, then drop them into the reactor, and the dropping rate is controlled within 3 hours to complete the dropping;

[0068] Step 3: After the addition of the monomer is completed, keep the temperature at 77°C for 2 hours, then ra...

Embodiment 2

[0076] Described waterborne acrylic resin, according to weight percentage, is made up of following components:

[0077] Methyl methacrylate 54%

[0078] Styrene 18%

[0079] Isobornyl Methacrylate 20%

[0080] Methacrylic acid 5.5%

[0081] Sodium Lauryl Sulfate 1%;

[0082] EF-810 0.5%

[0083] Potassium persulfate 1%.

[0084] The preparation method of described waterborne acrylic resin is as follows:

[0085] Step 1: Add deionized water into the reactor (the amount of deionized water added is twice the weight of the water-based acrylic resin), heat up to 55°C, add an emulsifier, continue to heat up to 80°C, and add an initiator;

[0086] Step 2: Mix the monomers methyl methacrylate, isobornyl methacrylate, styrene and methacrylic acid completely, then drop them into the reactor, and the dropping rate is controlled within 4 hours to complete the dropping;

[0087] Step 3: After the addition of the monomer is completed, keep the temperature at 82°C for 3 hours, then ra...

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Abstract

The invention discloses an aqueous acrylic resin, and a preparation method and an application thereof. An efficient emulsifier and an improved emulsion polymerization method are used for realizing the preparation of an aqueous emulsion; a novel polymerized monomer, namely, isobornyl methacrylate is added for overcoming the defect of brittleness of high Tg point resin; and a curing agent with certain components is added before the coating operation is performed, so that the temperature tolerance of the resin is obviously increased and the problem of mold-pressing at higher temperature of the resin is solved. The harm to environment and human health caused by an organic solvent during a use process is avoided and certain cost is saved, by using the aqueous acrylic resin. The novel polymerized monomer, namely, isobornyl methacrylate is added for solving the problem of applying acrylic resins to a laser hot-stamping foil information layer, an excellent toughening function is achieved and the mold-pressing implementation of the resin is increased. Under the action of the applied efficient emulsifier and the improved emulsion polymerization method, the prepared resin has excellent physical and chemical properties as well as storage and use stability both reaching the production standard.

Description

technical field [0001] The invention relates to the chemical field, in particular to a water-based acrylic resin, a preparation method and application thereof. Background technique [0002] Most of the existing laser transfer foils are coated with information layer resin on the base film of BOPP (biaxially oriented polypropylene film) or BOPET (biaxially oriented polyester film), and processed by molding process to make the surface appear laser-like. pattern, and then through vacuum aluminum plating to make it have a bright metallic luster, after the aluminum plating layer is coated with hot melt adhesive, it can be hot stamped. It has a wide range of applications in food packaging, cigarette packs and cosmetics. application. [0003] The core part of laser transfer foil, that is, the information layer resin has high performance requirements, which are mainly reflected in the molding process: the ideal pattern can be overmolded at about 150°C, which requires the coexistence...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F212/08C08F220/18C08F220/06C08F2/24B41M5/44
Inventor 霍锦钊程宝强白永平张建军
Owner 佛山市南海高拓包装材料有限公司