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Polyacrylate polymer emulsifier and preparation method thereof

A technology of polymer emulsifiers and polyacrylates, applied in chemical instruments and methods, chemical/physical processes, transportation and packaging, etc., can solve the problem of small molecular emulsifiers and polymer emulsifiers, and achieve good adsorption Encapsulation, emulsion stability, good emulsification effect

Active Publication Date: 2018-11-30
中化化工科学技术研究总院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiency in the use of small-molecular emulsifiers in the prior art and the lack of varieties of existing high-molecular emulsifiers, the present invention provides a polyacrylate-based high-molecular emulsifier and a preparation method thereof

Method used

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  • Polyacrylate polymer emulsifier and preparation method thereof
  • Polyacrylate polymer emulsifier and preparation method thereof
  • Polyacrylate polymer emulsifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A polyacrylate polymer emulsifier, consisting of the following components in parts by weight:

[0029] 35 parts of acrylic acid, 35 parts of stearyl acrylate, 2 parts of allyloxy nonylphenoxy propanol polyoxyethylene ether, 3 parts of ammonium persulfate, 20 parts of sodium hydroxide, and 100 parts of water.

[0030] Preparation methods include:

[0031] Step 1: Add water, acrylic acid, octadecyl acrylate, allyloxynonylphenoxypropanol polyoxyethylene ether, and ammonium persulfate to the reaction with thermometer, shearing, stirring, and condensing reflux device according to weight In the kettle, shear and emulsify for 10 minutes;

[0032] Step 2: The temperature is slowly raised to 90°C and reacted for 4 hours;

[0033] Step 3: Add sodium hydroxide to neutralize, cool and discharge.

[0034] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 38600.

Embodiment 2

[0036] The stearyl acrylate in Example 1 was replaced with pentyl acrylate, and the others remained unchanged.

[0037] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 43400.

Embodiment 3

[0039] The octadecyl acrylate in Example 1 was replaced with hexyl methacrylate, and the others were unchanged.

[0040] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 43,000.

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Abstract

The invention discloses an agricultural polyacrylate polymer emulsifier, and belongs to the field of polymer materials. The polymer emulsifier comprises, by weight, 10-70 parts of an acrylic monomer,5-50 parts of an acrylate monomer, 0.01-10 parts of a polymerization emulsifier, 1-10 parts of an initiator, 1-40 parts of an alkali and 50-200 parts of water; and a weight ratio of the acrylic monomer to the acrylate monomer is (1-7):(1-5). The polymer emulsifier contains a long-chain alkyl chain, has an excellent adsorbing and wrapping effect on mineral oil, plant oil and benzene oil, and has agood emulsifying effect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polyacrylate polymer emulsifier. Background technique [0002] An emulsifier is a substance used to prepare an emulsion and give it a minimum degree of stability, and is an essential component. Common emulsifiers are small molecule emulsifiers, mainly nonionic emulsifiers such as alkylphenol polyoxyethylene ethers and fatty alcohol polyoxyethylene ethers, and anionic emulsifiers such as alkylbenzene sulfonates. Polymer emulsifiers generally refer to polymer compounds with a relative molecular mass of several thousand or more and surface-active functions. According to the source, polymer surfactant compounds can be divided into natural polymer surfactants, natural modified (or semi-synthetic) polymer surfactants and chemically synthesized polymer surfactants. Natural polymer surfactants exist in animals and plants and play a very important role in the life process. They are am...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F220/06C08F220/18B01F17/36C09K23/36
CPCC08F283/065C09K23/00C08F220/18C08F220/1806C08F220/1812C08F220/1818C08F220/1808C08F220/1809C08F220/1805
Inventor 卢忠利张宗俭朱建秀
Owner 中化化工科学技术研究总院有限公司
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