Cationic polymer emulsifying wax and its preparation method

A polymer, cationic technology, applied in the field of wax emulsion, can solve the problem of easy delamination of cationic emulsified wax, and achieve the effect of improving hardness, improving stability and increasing aggregation resistance

Active Publication Date: 2020-11-27
XIANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cationic emulsifying wax is easy to delaminate, and there are not many successful cationic emulsifying wax products

Method used

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  • Cationic polymer emulsifying wax and its preparation method
  • Cationic polymer emulsifying wax and its preparation method
  • Cationic polymer emulsifying wax and its preparation method

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Experimental program
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preparation example Construction

[0045] The preparation method of cationic macromolecule emulsified wax comprises the following steps:

[0046] Step 1: Preparation of cationic polymer surfactant:

[0047] In terms of mass percentage, take 20% to 50% of the cationic monomer, and the balance is absolute ethanol; dissolve the cationic monomer in absolute ethanol, and then add 0.5% to 2% of the cationic monomer mass. agent to obtain a monomer mixture;

[0048] Pour the above-mentioned monomer mixture into a four-necked flask equipped with a stirrer and a thermometer, pass nitrogen, stir, heat, control the reaction temperature to be 70-85° C., perform reflux reaction for 4-8 hours, cool the obtained product to room temperature, reduce Press distillation to concentrate and remove the solvent to obtain a transparent cationic polymer surfactant;

[0049] Step 2: Preparation of cationic polymer emulsified wax:

[0050] In terms of mass percentage, take 15-45% of the wax and 5-10% of the cationic polymer surfactant ...

Embodiment 1

[0054] Dissolve 20% by mass of cationic monomer in absolute ethanol, add oil-soluble initiator azobisisobutyronitrile accounting for 0.5% of the total mass of the monomer, pour the above monomer mixture into a mixer equipped with a stirrer and a thermometer. In the four-necked flask, nitrogen was passed, stirred, heated, the reaction temperature was controlled to be 70°C, and the reaction was refluxed for 4 hours. The surface tension was 42 mN / m (mass concentration 0.2%). Add 15% paraffin and 5% cationic polymer surfactant to the three-necked flask in turn, heat to 65°C, after the two are fully dissolved and mixed, slowly add 65°C hot water under stirring at 1000 rpm, and continue to stir for 30min. That is, the cationic polymer emulsified wax is obtained.

[0055] Among them, the structural formula of the cationic monomer is:

[0056]

Embodiment 2

[0058] Dissolve 35% by mass of cationic monomer in absolute ethanol, add oil-soluble initiator azobisisobutyronitrile accounting for 1% of the total mass of the monomer, pour the above monomer mixture into a mixer equipped with a stirrer and a thermometer. In the four-necked flask, nitrogen was passed, stirred, heated, the reaction temperature was controlled to be 75°C, and the reaction was refluxed for 4 hours. The surface tension was 49 mN / m (mass concentration 0.2%). Add 20% palm wax and 7% cationic polymer surfactant to the three-necked flask in turn, heat to 90°C, after the two are fully dissolved and mixed, slowly add 90°C hot water under stirring at 1000rpm, and continue to stir for 30min , the cationic polymer emulsified wax is obtained.

[0059] Among them, the structural formula of the cationic monomer is:

[0060]

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Abstract

The invention discloses a cationic macromolecule emulsifying wax and a preparation method thereof. The cationic macromolecule emulsifying wax is obtained by copolymerization of cationic monomers. Theinvention discloses the preparation method of the cationic macromolecule emulsifying wax, and the method comprises the step that in absolute ethyl alcohol solvent, cationic monomers react through freeradical polymerization under the trigger action of an initiator to obtain a cationic macromolecule surface active agent. The cationic macromolecule surface active agent can be taken as the emulsifying wax, and then wax emulsion with grain sizes distributed uniformly is prepared. The prepared cationic macromolecule surface active agent has a surface tension in a range of 42-58 mN / m, and the invention further discloses a grain size distribution diagram of the cationic macromolecule emulsifying wax.

Description

technical field [0001] The invention belongs to the technical field of wax emulsions, in particular to a cationic polymer emulsified wax and a preparation method thereof. Background technique [0002] Wax emulsion is an oil-water multiphase dispersion system, which can be dispersed in water into a stable emulsion under the action of surfactants. In the production process, water is used as the organic solvent, which reduces the harm to the environment, and at the same time greatly reduces the cost of wax products and expands its application field. Wax emulsion has excellent properties such as non-toxicity, uniform film formation, anti-wear, anti-scratch, etc. It is widely used in leather varnish, water-based paint, artificial board and metal protection and other fields. [0003] Wax emulsion is a thermodynamically unstable system, and proper surfactant and preparation process need to be selected to prepare wax emulsion products with stable performance. Emulsifiers, ie surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/03C08L91/06C08L33/14C08F120/34C08F2/06
CPCC08F2/06C08F120/34C08J3/03C08J2391/06C08J2433/14
Inventor 王小荣魏永生李午戊惠瑞敏朱文婷孙智慧
Owner XIANYANG NORMAL UNIV
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