Preparation method for styrene-acrylic polyester resin

A technology of polyester resin and styrene-acrylic, applied in the field of preparation of styrene-acrylic-polyester resin, can solve the problems of complicated process, limited development and application, etc., and achieves the effects of good compatibility and low fixing temperature

Active Publication Date: 2017-09-15
邯郸汉光办公自动化耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are complicated in process and use a large amount of organic solvents and water, which limits their development and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 75g styrene, 20g ethyl acrylate, 8g polyethylene terephthalate, 8g polytrimethylene terephthalate and 2g azobisisobutyronitrile were added to the autoclave, and carbon dioxide gas was passed into it, Control the temperature inside the autoclave to 70° C. and the pressure to 20 MPa, react under stirring at 600 rpm for 8 hours, then cool down to room temperature and standard atmospheric pressure to obtain a styrene-acrylic-polyester resin.

Embodiment 2

[0026] 85g styrene, 15g butyl acrylate, 15g polyoctamethylene glycol sebacate and 2g ammonium persulfate were added to the autoclave, and carbon dioxide gas was introduced to control the temperature inside the autoclave to be 80°C and the pressure to be 15MPa, react at 800rpm with stirring for 6h, then lower to room temperature and standard atmospheric pressure to obtain styrene-acrylic-polyester resin.

Embodiment 3

[0028] According to the mass ratio of 85:5:2:8, the styrene-acrylic-polyester resin, paraffin wax, zinc salicylate and carbon black prepared in Example 1 were uniformly mixed in a high-speed mixer, and then melted and mixed at a high temperature, and passed The extruder extrudes the tablet, then enters the ball mill for coarse crushing, and further crushes and classifies the toner particles of 5 μm to 10 μm through the jet mill; mixes 20 g of the obtained toner particles with 0.12 g of nano-silicon dioxide powder evenly, and obtains suitable Black toner for laser printing.

[0029] The black pigments are replaced by yellow, magenta and cyan pigments respectively, and the proportions of different pigments are slightly different, but it can be prepared according to the prior art, and yellow, magenta and cyan toners suitable for color laser printing can be obtained.

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PUM

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Abstract

The invention relates to a preparation method for styrene-acrylic polyester resin, and belongs to the technical field of preparation of colorful powders for laser printing/xerography. The method comprises performing swelling polymerization reaction on styrene, an acrylate, polyester resin and an initiator under a supercritical condition, so as to prepare the styrene-acrylic polyester resin. The method is energy-saving, green and friendly to environment. Additionally, the styrene-acrylic polyester resin prepared by employing the method is electrically stable under high temperature and high humidity conditions, is low in photographic fixing temperature, and has good compatibility with a demolding agent.

Description

technical field [0001] The invention relates to a preparation method of styrene-acrylic-polyester resin, which belongs to the technical field of preparation of laser printing / electrostatic copying color powder. Background technique [0002] Toner is an office consumable used for fixing and developing in electrostatic copying and laser printing. It is mainly composed of resin, pigment, charge regulator, lubricant, etc. The performance of toner is mainly determined by its resin. The molecular weight and distribution of the resin, glass transition temperature, softening point, viscous flow temperature, etc. all affect the performance of toner. Styrene-acrylic resin is widely used as toner resin binder because of its low price, stable charging under high temperature and high humidity conditions, and good compatibility with release agents. However, with the replacement of copiers and printers, especially the advent of high-speed copiers and color copiers, styrene-acrylic resins ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/02C08F212/08C08F220/18G03G9/08
CPCC08F283/02G03G9/08C08F212/08Y02P20/54
Inventor 樊新衡赵兵建彭立政杨联明续守民
Owner 邯郸汉光办公自动化耗材有限公司
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