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Organic silicon emulsion defoaming agent of spinning pulp and preparation method of organic silicon emulsion defoaming agent

A silicone emulsion and textile size technology, applied in the direction of foam dispersion/prevention, can solve the problems of not being able to effectively wrap high-viscosity silicone compositions, affecting the efficiency of dyeing and the quality of final products, and reducing its own viscosity, etc.

Active Publication Date: 2013-04-17
YANGZHOU SIXIN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Patent CN102060999A is to disperse high-viscosity silicone composition by mechanical method, patent CN101298027 is to disperse high-viscosity silicone composition in water by adding high-viscosity emulsifier to prepare silicone defoamer, and patent CN101348571 reduces its own viscosity by adding low-molecular-weight polysiloxane to the high-viscosity silicone composition. The above-mentioned patents all prepare silicone defoamers through high-viscosity silicone compositions. The preparation method can make high Viscosity silicone compositions are well dispersed, but cannot effectively wrap high viscosity silicone compositions
In the dyeing of cotton and chemical fibers used in the textile industry, due to the harsh use environment, it is still easy to break the emulsion, making the high-viscosity silicone composition aggregate and form "silicon spots", which seriously affects the dyeing efficiency and the quality of the final product. quality, causing significant economic losses

Method used

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  • Organic silicon emulsion defoaming agent of spinning pulp and preparation method of organic silicon emulsion defoaming agent
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  • Organic silicon emulsion defoaming agent of spinning pulp and preparation method of organic silicon emulsion defoaming agent

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preparation example Construction

[0029] (1) Preparation of silicon polyether

[0030] The concrete value of silicon polyether described in the present invention is as follows:

[0031] Table 1 Silicon polyether

[0032] Silicon polyether

[0033] Preparation of ordinary silicon polyether: refer to the method of Example 3 in CN101298027 to prepare high-viscosity silicon polyether F1.

[0034] (2) Preparation of organosilicon composition

[0035] Refer to the preparation method of Example 1 in the patent US4639489 to prepare the following silicone compositions with different viscosities, as follows:

[0036] Table 2 High Viscosity Silicone Composition

[0037] High Viscosity Silicone Composition

[0038] Table 3 Low Viscosity Silicone Composition

[0039] Low Viscosity Silicone Composition

[0040] Preparation of Silicone Emulsion Defoamer

Embodiment 1

[0042] At room temperature, first mix 39g M1, 12g A1, 6g octylphenol polyoxyethylene (8) ether, and 3g water-soluble polyacrylate thickener at high speed for 0.6h; raise the temperature to 65°C, and add 40g of deionized water, the addition time of deionized water is 0.8h; after adding water, the above mixture is further emulsified by a homogenizer; add 3g of acrylic acid alkali swelling thickener and 97g of deionized water to the mixture emulsified by the homogenizer , stirred evenly, and adjusted the pH value to 7.0 to obtain the silicone emulsion defoamer S1.

Embodiment 2

[0044] At room temperature, first mix 48g of M2, 30g of A2, 9g of polyoxyethylene (12) laurate, and 3g of water-soluble polyacrylate thickener through high-speed stirring for 0.5h; raise the temperature to 70°C, and add 60g of deionized water, the addition time of deionized water is 1.5h; after the addition of water, the above mixture is further emulsified by a homogenizer; 3g of acrylic acid alkali swelling thickener and 147g of deionized water are added to the mixture emulsified by the homogenizer , stirred evenly, and adjusted the pH value to 7.0 to obtain the silicone emulsion defoamer S2.

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Abstract

The invention relates to an organic silicon emulsion defoaming agent of spinning pulp and a preparation method for the organic silicon emulsion defoaming agent. The invention is characterized in that a high-viscosity organic silicon composition is dispersed by silicon polyether with a spatial structure; and the stability of the organic silicon emulsion in the pulp is improved by a polyacrylate thickening agent. The prepared organic silicon emulsion defoaming agent has high compatibility, high-temperature resistance and foam eliminating and inhibiting performance in the pulp.

Description

technical field [0001] The invention relates to a silicone emulsion defoamer, more precisely the invention relates to a silicone emulsion defoamer used in textile pulp, which involves the preparation of fine chemical additives, so it belongs to the fine chemical industry Formulation technology field. Background technique [0002] Textile industry is the pillar industry of our country. After joining WTO, the position of my country's textile industry in the world becomes more and more prominent. In the dyeing and finishing process of textiles, especially in the processes of mortar sizing, synthetic fiber oiling, scouring, dyeing, and finishing, due to the extensive use of surfactants such as penetrants, leveling agents, dispersants, and color-fixing agents, These surfactants are added with raw materials such as detergents and adhesives to become foaming liquid. Due to the air entering due to stirring, transmission and liquid material transportation, a large amount of foam wi...

Claims

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Application Information

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IPC IPC(8): B01D19/04
Inventor 许勇吴飞曹添孟飞黄伟
Owner YANGZHOU SIXIN NEW MATERIAL TECH CO LTD
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