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Preparation method and application of modified paraffin capable of being used for spontaneous emulsification

A self-emulsifying and paraffin wax technology, applied in the field of chemical products, can solve the problems of few patents for the preparation of modified paraffin wax, and achieve the effects of excellent water solubility, cheap raw materials, and simple operation

Inactive Publication Date: 2012-08-01
GUANGDONG YINYANG ENVIRONMENT FRIENDLY NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the domestically prepared self-emulsifying paraffins use imported modified paraffins, and there are few patents on the preparation of related modified paraffins reported in China.

Method used

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  • Preparation method and application of modified paraffin capable of being used for spontaneous emulsification

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preparation example Construction

[0020] A kind of preparation method and application of the modified paraffin that can be used for self-emulsification of the present invention, it comprises the steps:

[0021] a. Synthesis of modified paraffin: under the protection of nitrogen, dissolve 100 parts of 70# paraffin, 2-20 parts of initiator in an appropriate amount of solvent, 10-50 parts of polar monomer, and react at 85-170 °C for 1- After 3 hours, the crude product of modified paraffin was obtained, and the crude product was precipitated and separated with a solvent, filtered by suction, washed several times, and dried to constant weight to obtain a refined product of modified paraffin;

[0022] b. Preparation of self-emulsifying paraffin: take 100 parts of modified paraffin and 5-20 parts of emulsifier, melt and mix them uniformly at 85-100°C, cool and shape at room temperature, and obtain self-emulsifying paraffin.

[0023] The preparation of described modified paraffin, reaction principle is as follows:

...

Embodiment 1

[0026] A self-emulsifying paraffin of the present invention is prepared by self-made modified paraffin, and the production formula is composed of the following component proportions (parts by weight):

[0027] (1) Synthesis of modified paraffin: Under nitrogen protection, dissolve 100 parts of 70# paraffin, 5 parts of initiator in 25 parts of acetone, 30 parts of polar monomer, and react at 160-170 °C for 1-2 hours. The crude product of modified paraffin is obtained, and the crude product is precipitated and separated with acetone, filtered with suction, washed several times, and dried to constant weight to obtain a refined product of modified paraffin.

[0028] (2) Preparation of self-emulsifying paraffin: Take 100 parts of modified paraffin and 12 parts of emulsifier, melt and mix them uniformly at 85-100°C, cool and shape at room temperature, and obtain self-emulsifying paraffin.

Embodiment 2

[0030] Under the protection of nitrogen, dissolve 100 parts of 70# paraffin, 9 parts of initiator in 45 parts of acetone, and 30 parts of polar monomer, and react at 160-170 ° C for 1-2 hours to obtain the crude modified paraffin product. The crude product was precipitated and separated with acetone, filtered with suction, washed several times, and dried to constant weight to obtain a refined product of modified paraffin. Then follow step (2) to prepare self-emulsifying paraffin.

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Abstract

The invention discloses a preparation method and the application of modified paraffin capable of being used for spontaneous emulsification and is characterized in that the method comprises the following steps: a, the modified paraffin is synthesized; under nitrogen protection, 100 portions of No.70 paraffin and 2 to 20 portions of evocating agent are dissolved into a right amount of resolvent, 10 to 50 portions of polar monomer are required, and a reaction lasts for 1 to 3h at the temperature of 85 to 170 DEG C, so as to obtain coarse modified paraffin product, then coarse products are precipitated and separated through the resolvent, suction filtration and repeated washing are performed, and drying is performed until a constant weight is obtained, so as to obtain refined modified paraffin product; and b, spontaneous emulsification paraffin is prepared; and 100 portions of modified paraffin and 5 to 20 portions of emulsifier are melted and uniformly mixed at the temperature of 85 to 100 DEG C, and through cooling forming at room temperature, the spontaneous emulsification paraffin can be obtained. The preparation process of the modified paraffin is simple, and the grafting rate is higher, a paraffin emulsifiable solution prepared by the spontaneous emulsification paraffin has a better stability, is convenient to store and transport, and has a favorable popularization value.

Description

technical field [0001] The invention relates to the technical field of chemical products, in particular to a preparation method and application of self-emulsifying modified paraffin. Background technique [0002] Paraffin wax emulsification is to disperse paraffin wax in water, change its surface tension with the help of directional adsorption of emulsifier, and become a highly dispersed, uniform and stable paraffin wax-containing emulsion under the action of mechanical external force. Because emulsified wax does not need to be melted by heating or dissolved by solvent, it has uniform film formation and good coverage, and is easy to be used in combination with aqueous solutions or emulsions of other substances. It has the advantages of safety, high efficiency, economy and convenience, so the use of emulsified wax very broad. [0003] However, due to the weak cohesion of paraffin molecules, the surface tension of the wax particles in the emulsion is small, and it is easy to ...

Claims

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Application Information

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IPC IPC(8): C08F289/00C08F220/06C08F2/26C08F2/30
Inventor 赵志辉刘鹏飞
Owner GUANGDONG YINYANG ENVIRONMENT FRIENDLY NEW MATERIALS CO LTD
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