Acrylic emulsion as well as preparation method and application thereof

A technology of acrylic emulsion and anionic emulsifier, which is applied in the direction of adhesive types, coatings, adhesive additives, etc., can solve the problems of uselessness and usage, and achieve good resilience, simple preparation process and operation, and dispersibility Excellent effect

Active Publication Date: 2011-05-18
GUANGZHOU HUMAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although acrylic resins with different elastic elongations can be obtained by simply adjusting the glass transition

Method used

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  • Acrylic emulsion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Acrylic emulsion is made of the following raw materials in mass percentage:

[0043] Isooctyl Acrylate 30%

[0044] Methyl methacrylate 10%

[0045] Methacrylic acid 1%

[0046] Hydroxyethyl Acrylate 0.5%

[0047] Divinylbenzene 0.3%

[0048] Acetoacetoxyethyl methacrylate 1%

[0049] Sodium dodecylbenzenesulfonate 1%

[0050] Laureth 3%

[0051] Sodium persulfate 0.5%

[0052] Succinic acid dihydrazide 1%

[0053] Deionized water 51.7%

[0054] The preparation method of acrylic emulsion is:

[0055] (1) All the isooctyl acrylate, methyl methacrylate, methacrylic acid, hydroxyethyl acrylate, divinylbenzene, acetoacetoxyethyl methacrylate and 1 / 3 quality deionized water in the raw material And 2 / 3 quality sodium dodecylbenzene sulfonate mixed, emulsified with a homogenizer for 15 minutes to obtain a pre-emulsion; remaining deionized water, sodium dodecylbenzene sulfonate and 1 / 10 quality pre-emulsion Put the emulsion into the reactor, raise the temperature to 84...

Embodiment 2

[0058] Acrylic emulsion is made of the following raw materials in mass percentage:

[0059] Butyl Acrylate 24%

[0060] Ethyl Acrylate 19%

[0061] Methyl methacrylate 5%

[0062] Styrene 3%

[0063] Methacrylamide 1%

[0064] Glycidyl methacrylate 1%

[0065] Trimethylolpropane diallyl ether 0.4%

[0066] Diacetone Acrylamide 1.8%

[0067] Sodium Lauryl Sulfate 0.8%

[0068] Polyoxyethylene Laurate 1.6%

[0069] Ammonium persulfate 0.2%

[0070] Adipic dihydrazide 1.8%

[0071] Deionized water 40.4%

[0072] The preparation method of acrylic emulsion is:

[0073] (1) All butyl acrylate, ethyl acrylate, methyl methacrylate, styrene, methacrylamide, glycidyl methacrylate, trimethylolpropane diallyl ether, diacetone Mix acrylamide with 1 / 3 mass of deionized water and 2 / 3 mass of sodium lauryl sulfate, emulsify with a homogenizer for 20 minutes to obtain a pre-emulsion; mix the remaining deionized water, sodium lauryl sulfate Put 1 / 5 mass of the pre-emulsion into the...

Embodiment 3

[0076] Acrylic emulsion is made of the following raw materials in mass percentage:

[0077] Lauryl Acrylate 10.8%

[0078] Ethyl Acrylate 30.4%

[0079] Methyl methacrylate 5%

[0080] Acrylonitrile 5.3%

[0081] Acrylic 1.4%

[0082] Hydroxypropyl Acrylate 1.5%

[0083] Diallyl phthalate 0.9%

[0084] Diacetone Acrylamide 1%

[0085] Sodium Oleate 1.4%

[0086] Glyceryl Oleate 0.7%

[0087] Ammonium persulfate 0.6%

[0088] Glutaric acid dihydrazide 1%

[0089] Deionized water 40%

[0090] The preparation method of acrylic emulsion is:

[0091] (1) All lauryl acrylate, ethyl acrylate, methyl methacrylate, acrylonitrile, acrylic acid, hydroxypropyl acrylate, diallyl phthalate, diacetone acrylamide and 1 / 4 mass Mix deionized water and 3 / 4 mass of sodium oleate, and emulsify with a homogenizer for 25 minutes to obtain a pre-emulsion; put the remaining deionized water, sodium oleate, and 1 / 20 mass of pre-emulsion into the reactor , heating up to 75°C, then adding amm...

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Abstract

The invention discloses an acrylic emulsion as well as a preparation method and an application thereof. The preparation method of the acrylic emulsion comprises the following steps: (1) mixing all monomers, 1/4-1/3 of deionized water and 2/3-3/4 of anionic emulsifier in raw materials, and emulsifying the mixture for 10-30 minutes to obtain a pre-emulsion; adding the left deionized water, the leftanionic emulsifier and 1/20-1/5 of pre-emulsion to a reactor, heating the reactor to 75-85 DEG C, adding an initiator, and making the mixture react for 0.5-1 hour; and (2) dropwise adding the left pre-emulsion for 2-4 hours, preserving heat for 2 hours at 75-85 DEG C, decreasing the temperature to 60 DEG C, adding a non-ionic emulsifier, stirring for 20 minutes, cooling the mixture to 20-30 DEG C, adjusting the pH value of the mixture to 7-8, adding a cross-linking agent, stirring and discharging. The acrylic emulsion has good rebound elasticity and good batch stability, can well disperse inorganic powder and overcomes a series of defects of the existing acrylic emulsion, and the preparation process of the acrylic emulsion is simple and is easy to realize industrial production.

Description

technical field [0001] The invention relates to the technical field of water-based adhesives and coatings, in particular to an acrylic emulsion and its preparation method and application. Background technique [0002] Water-based acrylic polymer emulsion is an environment-friendly product, which has the characteristics of no pollution and environmental protection, and has been widely used in the fields of water-based adhesives and coatings. With the gradual expansion of the product application range and the continuous improvement of application requirements, various types of new acrylic emulsion products are being further developed, and related preparation technologies are becoming more and more popular in the industry. At present, most of the patents related to emulsion preparation technology are explained from two aspects of polymerization process and cross-linking method. [0003] US Pat. No. 6,020,435 discloses a method for preparing core-shell polymer emulsions. Using...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F2/30C08F2/26C08K5/25C09D133/08C09D133/10C09D7/12C09J133/08C09J133/10C09J11/06
Inventor 陈旺陈勇黄光燕张琴
Owner GUANGZHOU HUMAN CHEM
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