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Surfactant

A technology of surfactant and specific surface area, applied in the direction of dissolution, foam dispersion/prevention, chemical instruments and methods, etc., can solve problems such as deviation of surface activation energy, and achieve excellent stability

Active Publication Date: 2009-07-29
日本诺普科助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, surfactants containing hydrophobic silica and polyether caused hydrophobic silica to settle due to long-term storage, and the surface activation energy (defoaming performance, etc.) was often different during use, that is, there was surface activation. Problems that can be prone to deviation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] 230 parts of E spindle oil {cosmo oil ルブリカンツ (Co., Ltd.)} (E1), 30 parts of NipsilSS-10 {Nippon Silica Co., Ltd.} (C1) and ニユ-ポ-ル LB-625 {Sanyo Chemical (Co., Ltd.) (D1) 700 parts, Aerosil 300 {Japan Aerosil Co., Ltd.; specific surface area 300m 3 After putting 5 parts of / g} (A1) and 20 parts of ion-exchanged water (B1) into a reaction vessel that can be heated, stirred and cooled, heat up to 50°C while stirring, and continue heating and stirring at this temperature for 3 hours . Then, it was stirred at 4000 rpm for 15 minutes with a homogenizer equipped with impeller-type blades (manufactured by Hiflex Diespa-Sa-HG-92G Taitec Co., Ltd., the same below) to obtain the antifoaming agent (S1) of the present invention. In addition, in the dispersion test {JIS K5600-2-5:1999 (corresponding to ISO1524:1983)}, it was confirmed that there were no particles of 5 micrometers or more.

Embodiment 2

[0129] Change 30 parts of Nipsil SS-10 (C1), 700 parts of Niu-Pol LB-625 (D1), 5 parts of Aerosil 300 (A1), and 20 parts of ion-exchanged water (B1) into 35 parts of (C1), (D1 ) 600 parts, (A1) 15 parts, and (B1) 70 parts, the antifoaming agent (S2) of this invention was obtained similarly to Example 1. In addition, similarly to Example 1, it was confirmed that there were no particles of 5 microns or more.

Embodiment 3

[0131] Change 30 parts of Nipsil SS-10 (C1), 5 parts of Aerosil 300 (A1), and 20 parts of ion-exchanged water (B1) into 35 parts of (C1), Aerosil 130 {manufactured by Japan Aerosil Co., Ltd.; specific surface area 130 m 3 / g} (A2) 15 parts and (B1) 70 parts, The antifoaming agent (S3) of this invention was obtained similarly to Example 1. In addition, similarly to Example 1, it was confirmed that there were no particles of 5 microns or more.

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Abstract

The present invention provides a surfactant whose surface activation energy does not easily vary. Alkylene oxide compound (D) and hydrophobic silica (C). (D) preferably includes a compound represented by the general formula (1) or (2). Water (B) is also contained therein, and the weight ratio (B / A) of (A) to (B) is preferably 0.1-20. In the formula, R represents a straight-chain alkyl group or a straight-chain alkenyl group with 1 to 6 carbon atoms, or a hydrogen atom, OA represents an oxyalkylene group with 3 to 4 carbon atoms, n represents an integer of 10 to 100, and m represents 0 or 1.

Description

technical field [0001] The present invention relates to surfactants. More specifically, it relates to a surfactant suitable for use in processing steps and wastewater treatment steps in the fields of pulp industry, food industry, fiber industry, board manufacturing for building materials, paint industry, and chemical industry. Background technique [0002] Currently, a class of surfactants containing hydrophobic silica and polyether is known (JP-A-56-147858, JP-A-2001-212403). [0003] In the past, surfactants containing hydrophobic silica and polyether caused hydrophobic silica to settle due to long-term storage, and the surface activation energy (defoaming performance, etc.) was often different during use, that is, there was surface activation. The problem of deviation can easily occur. Contents of the invention [0004] An object of the present invention is to provide a surfactant whose surface activation energy hardly varies. [0005] As a result of intensive studie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/54B01D19/04C09K23/42C09K23/54
Inventor 八木胜幸
Owner 日本诺普科助剂有限公司