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Preparation method for textile defoamer

A technology of defoaming agent and preparation steps, which is applied in the field of preparation of textile defoaming agent, can solve the problems of poor defoaming ability, slow defoaming of defoaming agent, low efficiency, etc., and achieve the effect of stable existence

Inactive Publication Date: 2019-06-18
常州市天宁区鑫发织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is to provide a textile defoaming agent for the defects that the defoaming ability of the current textile defoaming agent is poor in a strong alkali environment, the defoaming agent defoaming is slow under high temperature conditions, and the efficiency is low. The preparation method of the agent

Method used

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  • Preparation method for textile defoamer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The emulsifier is: nonylphenol polyoxyethylene ether

[0031] Preparation of epoxidized soybean oil:

[0032] Weigh 800g of soybeans, crush them in a crusher for 40 minutes to obtain bean dregs, soak the bean dregs with 500mL of n-hexane, stir for 30 minutes, soak for 3 hours, filter and remove the residue to obtain the leachate, pour the leachate into the extraction container, extract and wash 3 times , wash with 400mL of water each time to obtain mixed oil, place the mixed oil in an evaporator, heat up to 70°C, evaporate for 2 hours, remove the distilled liquid, and obtain soybean oil;

[0033] In parts by weight, in a four-necked flask with a thermometer, a stirrer, and a reflux condenser, 70 parts of soybean oil, 20 parts of mass fraction are 25% formic acid solution, 10 parts of mass fraction are 20% hydrogen peroxide and 20 parts of sulfuric acid with a mass fraction of 65%, heated to 80°C, started the agitator, stirred at a speed of 300r / min, and reacted for 2 h...

Embodiment 2

[0040] The emulsifier is: octylphenol polyoxyethylene ether

[0041] Preparation of epoxidized soybean oil:

[0042] Weigh 900g of soybeans, place the soybeans in a crusher and crush them for 45 minutes to obtain bean dregs, soak the bean dregs with 550mL of n-hexane, stir for 37 minutes, soak for 3.5 hours, filter and remove the residue to obtain the leachate, pour the leachate into the extraction container, extract and wash with water for 4 Once, wash with 450mL of water each time to obtain mixed oil, place the mixed oil in an evaporator, heat up to 75°C, evaporate for 2.5h, remove the distilled liquid, and obtain soybean oil;

[0043] In parts by weight, in a four-necked flask with a thermometer, a stirrer, and a reflux condenser, 75 parts of soybean oil, 22 parts of mass fraction are 25% formic acid solution, 11 parts of mass fraction are 20% hydrogen peroxide and 25 parts of sulfuric acid with a mass fraction of 65%, heated to 82°C, started the agitator, stirred at a spe...

Embodiment 3

[0050] The emulsifier is: polyoxyethylene laurate

[0051] Preparation of epoxidized soybean oil:

[0052] Weigh 1000g of soybeans, crush them in a crusher for 50 minutes to obtain bean dregs, soak the bean dregs with 600mL of n-hexane, stir for 45 minutes, soak for 4 hours, filter and remove the residue to obtain the leachate, pour the leachate into the extraction container, extract and wash 5 times , wash with 500mL of water each time to obtain mixed oil, place the mixed oil in an evaporator, heat up to 80°C, evaporate for 3 hours, remove the distilled liquid, and obtain soybean oil;

[0053] In parts by weight, in a four-necked flask with a thermometer, a stirrer, and a reflux condenser, 80 parts of soybean oil, 25 parts of mass fraction are 25% formic acid solution, 12 parts of mass fraction are 20% hydrogen peroxide and 30 parts of sulfuric acid with a mass fraction of 65%, heated to 85°C, started the agitator, stirred at a speed of 350r / min, and reacted for 3 hours to o...

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Abstract

The invention discloses a preparation method for a textile defoamer, and belongs to the field of textile industry. Soybeans are used as a raw material to prepare epoxidized soybean oil, the epoxidizedsoybean oil in the defoamer and an alcoholic substance are mutually soluble, and undergo ring-opening in a strong alkaline textile slurry to reduce the outer surface tension of bubbles, and an external pressure crushes the bubbles to achieve defoaming, so that the defoamer stably exists in an alkaline environment; and microcrystalline cellulose, silica sol and other effective components are mixedand stirred, the obtained mixture is filtered to obtain a filter cake, the filter cake is a silicon-containing cellulose gel with pores, and is immersed in methylsilicone oil, and the obtained filtercake is dispersed in fumed silica oxidized soybean oil, amino silicone oil, anhydrous ethanol, isopropanol, white carbon black and other components at a high speed to obtain the textile defoamer.

Description

technical field [0001] The invention discloses a preparation method of a textile defoamer, which belongs to the field of textile industry. Background technique [0002] There are nearly 100 categories of textile printing and dyeing auxiliaries in the world, about 15,000 varieties, with an annual output of 2.8 million tons and a market sales of more than 16 billion US dollars. my country's printing and dyeing industry has developed rapidly in recent years. Although there are still many problems in my country's textile printing and dyeing auxiliaries due to historical reasons, the textile industry is an important livelihood industry in my country. Textile printing and dyeing auxiliaries have broad prospects and great development potential. [0003] However, these auxiliaries used in large quantities in the textile printing and dyeing industry, such as surfactants such as penetrating agents, refining agents, leveling agents, dispersants, and color fixing agents, cause air to en...

Claims

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Application Information

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IPC IPC(8): B01D19/04
Inventor 郭剑
Owner 常州市天宁区鑫发织造有限公司
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