Method for preparing styrene-acrylic ester microemulsion

A technology of acrylate and styrene, which is applied in the field of preparation of styrene-acrylate microemulsion, which can solve the problems of high emulsifier dosage, hindering industrial production of styrene microemulsion polymerization, low solid content, etc.

Inactive Publication Date: 2011-05-11
黄军
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, at present, the result of styrene microemulsion polymerization is lower solid content and higher emulsifier

Method used

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  • Method for preparing styrene-acrylic ester microemulsion
  • Method for preparing styrene-acrylic ester microemulsion

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Experimental program
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Embodiment Construction

[0011] Processing step of the present invention is:

[0012] 1. The monomer styrene is treated with 8% NaOH before feeding, the purpose is to remove the polymerization inhibitor-p-tert-butylcatechol in the monomer;

[0013] 2. Heat the constant temperature water bath to 65°C, then add emulsifier OP-1010~34ml, co-emulsifier DBS3.75~9.0ml, monomer styrene 114ml, crosslinking agent divinylbenzene 0.8~2.0ml, trigger Agent K 2 S 2 o 8 0-25ml, the reaction temperature is controlled at 65-70°C, and the reaction is carried out for 6-8 hours; the reactants are taken out, and analyzed by laser particle size and electron microscope.

[0014] The present invention chooses to add emulsifier OP-10, auxiliary emulsifier DBS, crosslinking agent divinylbenzene, initiator K 2 S 2 o 8 As a factor affecting the preparation effect of styrene-acrylic ester microemulsion, see Table 1 and Table 2.

[0015] Table 1 Four-factor level table

[0016]

[0017]

[0018] Table 2 The influence ...

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Abstract

The invention discloses a method for preparing a styrene-acrylic ester microemulsion, relating to a preparation method of resin. The method for preparing the styrene-acrylic ester microemulsion has the advantages of small consumption of raw materials, high solid content of products and industrial production. In the technical scheme provided by the invention, the preparation method comprises the following process steps of: processing monomer styrene with 8% NaOH before adding so as to remove a polymerization inhibitor p-tert-butylcatechol in the monomer; heating a constant-temperature water bath kettle to 65 DEG C, then adding 10-34ml of emulsifier OP-10, 3.75-9.0ml of assistant emulsifiers DBS, 114ml of monomer styrene, 0.8-2.0ml of cross-linking agent divinyl benzene and 0-25ml of intiator K2S2O8, controlling the reaction temperature to be between 65 DEG C and 70 DEG C, reacting for 6-8h; and taking out the reactant and carrying out laser grain size analysis and electronic microscope analysis.

Description

Technical field: [0001] The present invention relates to a kind of preparation method of resin, more specifically, relate to the preparation method of styrene-acrylate microemulsion. Background technique: [0002] As early as the 1980s, foreign scholars found through research that microemulsion polymerization can obtain polymer particles smaller than 100nm. In recent years, microemulsion polymerization has begun to gradually replace conventional emulsion polymerization. Among them, styrene microemulsion polymerization is the most studied system. The emulsifiers used to prepare styrene microemulsion mainly include anionic emulsifier SDS (sodium dodecyl sulfate ), cationic emulsifier CTAB (cetyltrimethylammonium bromide) and nonionic emulsifier OP (octylphenol polyoxyethylene ether), etc. [0003] However, at present, the result of styrene microemulsion polymerization is lower solid content and higher amount of emulsifier, which limits its further application and hinders the ...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F2/30
Inventor 黄军
Owner 黄军
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