A kind of nonionic water-based epoxy resin emulsion and preparation method thereof

A water-based epoxy resin, non-ionic technology, used in epoxy resin coatings, mixing methods, chemical instruments and methods, etc. Uniform binding reaction, avoiding agglomeration and agglomeration, ensuring the effect of stable rotation

Active Publication Date: 2022-08-02
HUANGSHAN LIANGU NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of non-ionic water-based epoxy resin emulsion and preparation method thereof, to solve the above-mentioned background technology. In the emulsion, it is inconvenient to realize the uniform molding of the emulsion

Method used

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  • A kind of nonionic water-based epoxy resin emulsion and preparation method thereof
  • A kind of nonionic water-based epoxy resin emulsion and preparation method thereof
  • A kind of nonionic water-based epoxy resin emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 , Step 1: Mix the macromolecular polyoxyethylene and the liquid epoxy resin raw materials, heat up to 85-95 ℃, then add a catalyst to stir, then gradually cool down to 65-75 ℃, keep a constant temperature, and drop the amino-terminated polyether, carry out mixed reactions;

[0038] Step 2: adding chain extender and toughening agent to another part of bisphenol A epoxy resin for mixing, and adding triphenylphosphine catalyst for addition reaction;

[0039] Step 3: Pour the materials prepared in Steps 1 and 2 into high-speed shearing equipment, add deionized water for heating and mixing, and carry out high-speed shearing and heating reactions. That is, a non-ionic water-based epoxy resin emulsion is obtained;

[0040] In the above-mentioned step 3, the high-speed shearing equipment includes a base 1, and a shearing tank 2 is arranged above the base 1, and the upper and lower ends of the shearing tank 2 are equipped with valve material guide ports 3, and two...

Embodiment 2

[0042] see Figure 1-5 In the traverse rod 7, the bottom of the traverse rod 7 is installed in the positioning groove 5 through the traverse spring 6, and the top of the traverse rod 7 is fixed with an installation sleeve 8, and the embedded movable installation of the shearing sleeve 8 Shaft 9, the middle of the shearing shaft 9 is located in the shearing tank 2, and the middle of the shearing shaft 9 is sleeved with a shearing blade 10 distributed in a spiral shape, and the shearing shaft 9 and the shearing blade 10 are welded with shearing blades. The cutting blade 11 is provided with a capillary centrifugal hole 12 at an equal angle in the space outside the middle part of the shear shaft 9; a push plate 41 is fixed on the outside of the positioning ring 4, and the cross-section of the positioning ring 4 is designed in a "匚" shape structure, and the positioning The ring 4 fits and slides in the positioning groove 5, two positioning rings 4 are symmetrically arranged on the ...

Embodiment 3

[0044] see figure 1 and Image 6 , the piston 20, the piston 20 is installed in the shear shaft 9, and the outer end of the piston 20 is fixed with a push rod 21, and the top of the push rod 21 is embedded and movably installed with a fixed block 24 through a telescopic spring 23, one end of the fixed block 24 It is located in the fixing groove 25, and the fixing groove 25 is opened on the inner wall of the shear shaft 9. One end of the push rod 21 runs through the top of the vertical rod 22, and the vertical rod 22 is fixed at the top edge of the base 1. A movable column 211 is installed in the embedded movable, and a pull rope 212 is fixed between the movable column 211 and the fixed block 24. The fixed block 24 elastically slides on the push rod 21 through the expansion spring 23, and the top of the fixed block 24 has a right-angled trapezoid structure. design, and the top of the fixed block 24 is engaged with the fixed groove 25, and the fixed groove 25 is designed in a r...

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Abstract

The invention discloses a non-ionic water-based epoxy resin emulsion and a preparation method thereof. The preparation method comprises the following steps: step 1: mixing macromolecular polyoxyethylene and liquid epoxy resin raw materials; step 2: adding another part Add chain extender and toughening agent to bisphenol A epoxy resin for mixing; Step 3: Pour the materials prepared in Step 1 and Step 2 into high-speed shearing equipment; the high-speed shearing equipment described in Step 3 above It includes a base, a shearing tank is arranged above the base, and one end of the positioning ring is located in the positioning groove; it also includes a traverse rod, and the bottom of the traverse rod is installed in the positioning groove through a traverse spring. The non-ionic water-based epoxy resin emulsion and the preparation method thereof include uniformly adding deionized water, and performing high-speed shearing on the emulsion and the deionized water, so as to ensure uniform mixing and avoid the occurrence of emulsion agglomeration and bubbles.

Description

technical field [0001] The invention relates to the technical field of preparation of waterborne epoxy resin emulsions, in particular to a nonionic waterborne epoxy resin emulsion and a preparation method thereof. Background technique [0002] Water-based epoxy resin is a kind of anti-corrosion coating, which is mainly used in automobile coating, medical and construction industries. In the preparation process of water-based epoxy resin, it is divided into mechanical method, chemical modification method and phase inversion method, etc. Most of the water-based epoxy resin emulsions are prepared by chemical modification method and phase inversion method. There are the following problems; [0003] When the existing non-ionic water-based epoxy resin emulsion is prepared, deionized water needs to be added, and shearing and mixing are performed to realize the preparation of the emulsion, but the existing non-ionic water-based epoxy resin emulsion is prepared during preparation. ,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D5/08C09D7/65B01F31/50B01F23/41
CPCC09D163/00C09D5/08C09D7/65C08L63/00C08L71/02
Inventor 李文养刘艳朱小勇
Owner HUANGSHAN LIANGU NEW MATERIAL TECH CO LTD
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