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Preparation method for non-silicon antifoaming agent

A non-silicon defoamer and organosilicon technology, which is applied in the field of preparation of non-silicon defoamers, can solve the problems of complicated process and slow defoaming speed, and achieve the advantages of simple preparation method, low production cost and stable foam suppression performance Effect

Inactive Publication Date: 2012-02-15
佛山市华联有机硅有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems such as slow defoaming speed and complicated process in the existing non-silicon defoamer preparation method

Method used

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  • Preparation method for non-silicon antifoaming agent
  • Preparation method for non-silicon antifoaming agent
  • Preparation method for non-silicon antifoaming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for preparing the non-silicon defoamer of the present invention is as follows: first, add 75 parts of white mineral oil, 7.5 parts of white carbon black, 7.5 parts of polyether, and 3 parts of fatty acid amide into a reaction kettle equipped with a stainless steel stirrer, a motor and a heating system , 4.5 parts of simethicone oil, 2.5 parts of thickener, mix evenly, and then raise the temperature to 120°C for 3 hours; keep stirring at room temperature and discharge to obtain ointment;

[0021] Take 80 parts of the prepared ointment, add self-emulsifying silicone oil, 20 parts of phosphate ester, 5 parts of emulsifier XP-50, SP-80, stir well, then add 280 parts of water to make phase inversion, and the phase inversion is complete Then add 16 parts of thickener AT-70 to thicken and adjust the viscosity to 1500CS~2000CS, and then discharge and pack.

[0022] The white mineral oil in the raw material has a viscosity of 5CS; the white carbon black has a specific...

Embodiment 2～4

[0024] Compared with Example 1, the production process of Examples 2-4 is the same and will not be repeated. The proportioning, reaction time and temperature of each component in each embodiment are shown in Table 1 below.

[0025] Table 1 Case 2-4 Material ratio of ointment

[0026]

[0027] Table 2 Case 2-4 material ratio

[0028] Example 2

Example 3

Example 4

Ointment

80

80

80

self milking silicone oil

15

10

5

Phosphate

25

30

35

Emulsifier XP-50

5

5

5

Emulsifier SP-80

5

5

5

Thickener AT-70

16

16

16

water

280

280

280

[0029] The performance of non-silicon defoamer of the present invention;

[0030] The product obtained in Example 1, the non-silicon defoamer, was tested according to the following standards, and the appearance was milky white and uniform liquid without mechanical impurities, a...

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Abstract

The invention discloses a preparation method for a non-silicon antifoaming agent, comprising the following steps: firstly, preparing ingredients according to the following proportion: 60-80 weight portions of white mineral oil, 5-10 weight portions of white carbon black, 5-10 weight portions of polyether, 3-7 weight portions of dimethicone, 2-4 weight portions of fatty amide, and 1-3 weight portions of thickening agent EBS; then, adding the ingredients in a reaction vessel providing with a stainless steel stirrer, a motor and a heating system, uniformly mixing the ingredients at normal temperature, heating up to 120 DEG C and keeping the constant temperature of 120 DEG C for 3-5 h, and finally continuously stirring, cooling to room temperature, and discharging to obtain an ointment; taking 80 weight portions of the ointment, adding 20 weight portions of self-emulsifying silicone oil and 20 weight portions of phosphate ester, 5 weight portions of emulsifier XP-50, and 5 weight portions of emulsifier XP-80 in the ointment and uniformly stirring, then adding 280 weight portions of water for phase inversion, adding 16 weight portions of thickening agent for thickening and regulating the viscosity, and discharging and packaging. The method has the advantages of simple preparation and low cost, the prepared non-silicon antifoaming agent has no pollution to the environment, and all performance indexes of the non-silicon antifoaming agent are good.

Description

technical field [0001] The invention relates to the technical field of chemical engineering, and more specifically relates to a preparation method of a non-silicon defoamer. Background technique [0002] At present, silicone defoamers have the characteristics of rapid defoaming, long antifoaming time, safety and non-toxicity, etc., but they are difficult to dissolve in water, have poor resistance to strong alkali, and are prone to shrinkage and oil spots. Non-silicon polymer, excellent antifoaming, defoaming, defoaming effects, and very fast, extremely low shrinkage tendency, especially suitable for systems that are prone to shrinkage, water-based coatings, etc. However, there are still problems such as slow defoaming speed and complicated process in the existing non-silicon defoamer preparation method. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a non-silicon defoamer with excellent performance indicators in...

Claims

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Application Information

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IPC IPC(8): B01D19/04
Inventor 曾伟文薛瑜军肖燕平许锋
Owner 佛山市华联有机硅有限公司
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