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Polyester type amphipathic nature ultra-dispersant and preparation method thereof

A hyperdispersant and amphiphilic technology, applied in chemical instruments and methods, transportation and packaging, dissolution, etc., can solve problems such as inappropriateness, achieve short production cycle, good amphiphilic performance, and popularize the use of the effect

Inactive Publication Date: 2011-04-13
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hyperdispersants mentioned above are not suitable for use in different polar media

Method used

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  • Polyester type amphipathic nature ultra-dispersant and preparation method thereof
  • Polyester type amphipathic nature ultra-dispersant and preparation method thereof
  • Polyester type amphipathic nature ultra-dispersant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] In Embodiment 1, 19.1879 g of ethyl acrylate, 12.0068 g of methyl methacrylate, 11.9445 g of methacrylic acid and 2.8782 g of ethylenediamine were weighed respectively. Corresponding to a molar ratio of 4:2.5:2.86:1, add 92g of distilled water into a 250mL four-necked reaction flask, and heat in a water bath. When the temperature rose to 80°C, 1.1504 g of KPS were added. Start stirring, and when KPS is completely dissolved, add ethyl acrylate and methyl methacrylate mixed monomers dropwise with a constant pressure dropper. After adding the mixed monomer, start to add methacrylic acid dropwise after 2 hours of constant temperature reaction, start to add ethylenediamine dropwise after the methacrylic acid is added and keep the constant temperature reaction for 2 hours, after the addition of ethylenediamine is completed, continue to react for 4 hours, and then stop the reaction . The obtained product is separated into liquids, and the oily liquid in the upper layer is th...

Embodiment approach 2

[0034] In Embodiment 2, 19.1879 g of ethyl acrylate, 12.0068 g of methyl methacrylate, 11.9445 g of methacrylic acid and 2.8782 g of ethylenediamine were weighed respectively. Corresponding to a molar ratio of 4:2.5:2.86:1, add 80g of distilled water into a 250mL four-neck reaction flask and heat it with a water bath. When the temperature rose to 50°C, 1.8410 g KPS was added. Start stirring, when KPS is completely dissolved, add ethyl acrylate, methyl methacrylate mixed monomer and 8g of 0.7mol / L sodium bisulfite solution to the reaction bottle at the same time, after the materials are added, react at constant temperature for 2h, and then At the same time, methacrylic acid and 4 g of 0.7 mol / L sodium bisulfite solution were added dropwise, and the reaction was continued for 2 hours after the addition of the materials, and then ethylenediamine was added dropwise. After the addition of ethylenediamine, the reaction was continued at constant temperature for 3 hours, and then the...

Embodiment approach 3

[0035] In Embodiment 3, 19.1879 g of ethyl acrylate, 12.0068 g of methyl methacrylate, 8.2437 g of acrylic acid and 2.8782 g of ethylenediamine were weighed respectively. Corresponding to a molar ratio of 4:2.5:2.86:1, add 92g of distilled water into a 250mL four-necked four-necked reaction flask and heat it with a water bath. When the temperature rose to 80°C, 1.1504 g of KPS were added. Start stirring, and when KPS is completely dissolved, add ethyl acrylate and methyl methacrylate mixed monomers dropwise with a constant pressure dropper. After adding the mixed monomers, start to add acrylic acid dropwise after the constant temperature reaction for 2 hours, start to add ethylenediamine dropwise after the addition of acrylic acid and keep the constant temperature reaction for 2 hours, and continue the reaction for 4 hours after the addition of ethylenediamine, and then stop the reaction. The obtained product is liquid-separated, and the oily liquid in the upper layer is the ...

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Abstract

The invention relates to a polyester amphipathic hyper-dispersant and a preparation method thereof to satisfy the demand of dispersion of solid particles in different polar media. The technical characteristics are as follows: first, ester monomer copolymerizes under initiator action to prepare a polyester chain segment of random structure, then the polyester chain segment and one of methacrylic acid and acrylic acid copolymerize to prepare carboxyl terminated polyester compound, at last, the carboxyl terminated polyester compound and amine graft react, the obtained solvent chain is polyester,and the anchoring radical is amino or amino and alcohol radical. The invention has the advantages that: 1) the synthesis and preparation of the hyper-dispersant is simple, the production period is short and the cost is low. 2) The hyper-dispersant has good amphipathic structure. Inorganic powder that is modified by the hyper-dispersant shows good amphipathic performance can satisfy the demand of dispersion of the powder in different polar media, thus popularizing the application range of the modified powder and reducing the material processing cost.

Description

technical field [0001] The invention relates to a polyester type amphiphilic hyperdispersant and a preparation method thereof, so as to meet the requirement of dispersing solid particles in different polar media. Background technique [0002] With the rapid rise in the price of industrial raw materials, the research on the modification of inorganic fillers has attracted the attention of a large number of researchers. For the modification of inorganic filler powder, it can reduce the agglomeration between powder particles, improve the dispersion performance of filler powder in resin, improve the melt fluidity during processing, and finally improve the physical properties of filler plastics. purpose of modification. In order to meet the needs of dispersion of filler powder in the medium, a class of polymer hyperdispersants has been developed in recent years. Compared with traditional dispersants, the structural characteristics of hyperdispersants are that one end can be firm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/36C08F220/10C08F220/06C08F8/32C09K23/36
Inventor 张秋禹陆树新孙九立张和鹏
Owner NORTHWESTERN POLYTECHNICAL UNIV
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