A kind of defoamer composition and preparation method thereof

A composition and defoamer technology, applied in the direction of foam dispersion/prevention, can solve the problems of prolonged production time, slow foam elimination, poor stability, etc., and achieves elimination of harmful foam, fast defoaming, and good room temperature stability. sexual effect

Active Publication Date: 2015-10-07
SUZHOU HENGKANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: Ordinary defoamers have poor stability at room temperature, and the speed of eliminating foam in the papermaking process is too slow, prolonging the problem of production time

Method used

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  • A kind of defoamer composition and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0012] A method for preparing a defoamer composition, the preparation method comprising the following steps: (1) Open the reaction kettle, add 14 kg of polyoxypropylene glycol, 4 kg of cetyl alcohol, polyoxyethylene octylphenol ether at 40 ° C (2) Add 5kg of propylene glycol, 6kg of diethylamine, and 115kg of deionized water to the reactor, and stir evenly; (3) Raise the temperature of the mixture in the reactor to 70°C and add wood 2kg of cellulose, continue to stir until uniform; (4) Homogenize the mixed solution, the homogenization pressure is 14MPa, the homogenization time is 20min, cool after the homogenization is completed, and prepare the defoamer composition.

Embodiment 2

[0014] A method for preparing a defoamer composition, the preparation method comprising the following steps: (1) Open the reaction kettle, add 15 kg of polyoxypropylene glycol, 3 kg of cetyl alcohol, polyoxyethylene octylphenol ether at 40 ° C (2) Add 6kg of propylene glycol, 4kg of diethylamine, and 120kg of deionized water to the reactor, and stir evenly; (3) Raise the temperature of the mixture in the reactor to 70°C and add wood 3kg of cellulose, continue to stir until uniform; (4) Homogenize the mixed solution, the homogenization pressure is 16MPa, the homogenization time is 20min, cool after the homogenization is completed, and prepare the defoamer composition.

Embodiment 3

[0016] A method for preparing a defoamer composition, the preparation method comprising the following steps: (1) Open the reaction kettle, add 17 kg of polyoxypropylene glycol, 3 kg of cetyl alcohol, polyoxyethylene octylphenol ether at 40 ° C (2) Add 5kg of propylene glycol, 5kg of diethylamine, and 110kg of deionized water to the reactor, and stir evenly; (3) Raise the temperature of the mixture in the reactor to 70°C and add wood 2kg of cellulose, continue to stir until uniform; (4) Homogenize the mixed solution, the homogenization pressure is 12MPa, the homogenization time is 20min, cool after the homogenization is completed, and prepare the defoamer composition.

[0017] Place the defoamer compositions of Example 1, Example 2, and Example 3 at 25°C for 6 months, 9 months, and 12 months respectively, and observe the presence or absence of Example 1, Example 2, and Example 3 state change.

[0018] Get four measuring cylinders in addition, add 2wt% sodium tetradecyl sulfate...

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Abstract

The invention relates to a defoaming agent composition as well as a preparation method thereof. The foaming agent composition is prepared from the following components in weight ratio: 14-17 parts of polypropylene oxide glycol, 3-4 parts of cetanol, 7-9 parts of polyoxyethylene octyl phenol ether, 2-3 parts of lignocelluloses, 5-6 parts of propylene glycol, 4-6 parts of propylene glycol and 110-120 parts of deionized water. The preparation method of the defoaming agent composition provided by the invention comprises mixing, stirring and homogenizing; the defoaming agent composition prepared by the method has favorable room temperature stability, can rapidly eliminate generated foam, improves the production efficiency, and reduces adverse effects caused by foam.

Description

technical field [0001] The invention relates to a defoamer composition and a preparation method thereof, in particular to a defoamer composition which has good room temperature stability and can rapidly eliminate foam and a preparation method thereof. Background technique [0002] There are many types of defoamers, such as organosiloxane defoamers, polyether defoamers, imine defoamers, etc. According to the different functions of the defoamer, the defoamer is mainly divided into two categories, one is the defoamer that eliminates the foam that has been generated, and the other is the defoamer that suppresses the generation of new foam. Generally, pure water will not produce foam, but when there are surfactants and other substances in the water, certain foam will be produced, which will affect the production of paper industry. [0003] Conventional defoamers take a long time to eliminate foam, and ordinary defoamers are also less stable, which affects the normal use of defoa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/04
Inventor 邓强
Owner SUZHOU HENGKANG NEW MATERIALS
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