Antifoaming agent composition for papermaking and preparation method thereof

A technology of defoamer and composition, which is applied in the field of defoamer composition for papermaking and its preparation, which can solve the problems that it is difficult to find defoamer and foam is difficult to eliminate, and achieve improved washing effect, low cost and low viscosity Effect

Inactive Publication Date: 2017-01-04
TIANJIN YOUWEI PRINTING PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, a variety of inorganic and organic substances are used in the pulping process. The mixture of inorganic and organic substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In an embodiment of the present invention, a defoamer composition for papermaking, raw materials by weight parts include: 50 parts of the first component, 40 parts of the second component, the raw materials of the first component by weight parts include: 20 parts of fatty acid metal soap, 12 parts of fatty acid amide, 5 parts of high-carbon fatty acid end-capped polyether ester, 5 parts of high-carbon fatty acid ester, 3 parts of ethyl vinyl ether, 2 parts of sodium dodecyl sulfonate, hydrophobic white carbon 2 parts of black, 0.5 parts of alkyl sulfate, 0.5 parts of dispersant, the raw materials of the second component include: 15 parts of silicone resin, 10 parts of dimethyl silicone oil, 6 parts of lysine, fatty acid polyethylene 3 parts of glycol, 3 parts of silicon dioxide, 2 parts of sodium carbonate, 1 part of calcium chloride, the average particle diameter of the hydrophobic silica is 1 μm, and the surface area is 100m 2 / g.

[0021] The preparation method of t...

Embodiment 2

[0027] In the embodiment of the present invention, a defoamer composition for papermaking, raw materials by weight include: 64.5 parts of the first component, 50 parts of the second component, the raw materials of the first component include by weight: 25 parts of fatty acid metal soap, 16 parts of fatty acid amide, 7 parts of high-carbon fatty acid end-capped polyether ester, 6 parts of high-carbon fatty acid ester, 3.5 parts of ethyl vinyl ether, 3 parts of sodium dodecylsulfonate, hydrophobic white carbon 3 parts of black, 0.5 parts of alkyl phosphate, 0.5 part of dispersant, the raw materials of the second component include: 20 parts of silicone resin, 11 parts of dimethyl silicone oil, 7 parts of lysine, fatty acid polyethylene 4 parts of glycol, 3.5 parts of silicon dioxide, 3 parts of sodium carbonate, 1.5 parts of calcium chloride, the average particle size of the hydrophobic white carbon black is 3 μm, and the surface area is 200m 2 / g.

[0028] The preparation metho...

Embodiment 3

[0034] In an embodiment of the present invention, a defoamer composition for papermaking, raw materials in parts by weight include: 80 parts of the first component, 60 parts of the second component, the raw materials of the first component in parts by weight include: 30 parts of fatty acid metal soap, 20 parts of fatty acid amide, 8 parts of high-carbon fatty acid end-capped polyether ester, 8 parts of high-carbon fatty acid ester, 4 parts of ethyl vinyl ether, 4 parts of sodium dodecyl sulfonate, 4 parts of hydrophobic white carbon 1 part, 1 part of alkylamide sulfonate, 1 part of dispersant, the raw materials of the second component according to parts by weight include: 25 parts of silicone resin, 12 parts of dimethyl silicone oil, 8 parts of lysine, fatty acid poly 5 parts of ethylene glycol, 4 parts of silicon dioxide, 4 parts of sodium carbonate, 2 parts of calcium chloride, the average particle diameter of the hydrophobic white carbon black is 5 μ m, and the surface area ...

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Abstract

The invention discloses an antifoaming agent composition for papermaking and a preparation method thereof. The antifoaming agent composition comprises, by weight part, a first component and a second component. The first component comprises, by weight part, fatty acid metal soup, fatty acid amide, higher aliphatic acid-terminated polyether ester, higher aliphatic acid ester, ethyl vinyl ether, sodium dodecyl sulfate, hydrophobic white carbon black, an emulsifier and a dispersant. The second component comprises, by weight part, organic silicone resin, dimethicone, lysine, fatty acid polyglycol ester, silica, sodium carbonate and calcium chloride. The preparation has simple processes and realizes a low cost. The antifoaming agent composition has small viscosity and can be easily emulsified and dispersed. Calcium chloride inorganic nanoparticles can inhibit inorganic component bubble generation in a system so that foam in an inorganic substance-organic substance mixed system is fast eliminated, a dehydration process is accelerated, paper pulp washing effects are improved, a water use amount is reduced, later pollution is avoided and paper pulp quality is improved.

Description

technical field [0001] The invention relates to the technical field of papermaking chemicals, in particular to a defoamer composition for papermaking and a preparation method thereof. Background technique [0002] In the papermaking process, many additives with surface active functions (such as detergents, flow aids, wet strength agents, sizing agents, etc.) need to be used before pulping and papermaking, plus the pulp itself Lignin and resins also act as surfactants, making pulp easy to foam. At the same time, mechanical processes such as wire dehydration, pumping process, lip spraying, and paddle pool stirring will introduce a large amount of air, which is also the main cause of slurry foaming. Foam will cause many hazards: 1) increase the porosity of paper and affect paper quality; 2) increase pumping energy consumption, seriously affecting production efficiency; 3) waste of raw materials due to overflow; 4) easy to pollute the environment and endanger the health of work...

Claims

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Application Information

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IPC IPC(8): D21H21/12D21H17/66
Inventor 范有为
Owner TIANJIN YOUWEI PRINTING PACKAGING
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