Non-ionic organic silicon functional auxiliary agent for softening agent

Abstract

The invention discloses a nonionic organic silicon functional aid for a softening agent, which is prepared from the following components in percentage by weight: 10-25% of amino silicone grease, 5-15% of alkyl modified silicone oil, 5-10% of silicon polyether, 5-10% of polyether, 2-5% of nonionic emulsifier, 5-10% of thickener and 45-55% of water, and the sum of the weight percentages of the components is 100%. When being added into an application system, the organic silicon functional auxiliary agent has basic foam eliminating and inhibiting performance, also has good strong alkali resistance, high temperature resistance and good compatibility, and provides certain microbubble eliminating performance, smoothness and softness at the same time. The invention also discloses a preparation method of the non-ionic organic silicon functional auxiliary agent for the softening agent, which has the advantages of simple process, low requirements on operation conditions and high production efficiency.

Description

Technical Field

[0001] The invention relates to an organosilicon functional additive, belonging to the technical field of fine chemical preparations. Background Art

[0002] Softeners are daily chemical products that impart a soft and pleasant feel to clothing and fabrics, especially during wear and use. The softening and smoothing properties of softeners are primarily due to their adsorption onto fiber surfaces, preventing direct fiber-to-fiber contact. This reduces both the dynamic and static friction coefficients between fibers, and reduces resistance between fabric components and between the fabric and the human body, resulting in a soft, smooth, and comfortable feel. Softener defoamers must possess not only excellent foam removal and suppression properties but also strong alkali resistance, high temperature resistance, shear stability, and good compatibility.

[0003] Compared with other types of defoaming agents, silicone defoaming agents have more advantages in use in textile softeners. First, they are reflected in their low surface tension and insolubility. The surface tension of silicone defoaming agents is significantly lower than that of water, and they can quickly penetrate the foam film and break it. They are insoluble in polar solutions, ensuring long-term foam suppression. Secondly, they are resistant to high temperatures and chemically inert. The siloxane main chain structure is stable and can withstand temperatures above 150°C. It does not react with dyes or softeners and does not affect the color fastness of the fabric.

[0004] Currently, the most common silicone defoamers used in textile softeners are either formulated with amino silicone oils or modified with polyethers. Patents CN102284198 and CN102527096A propose polyether-modified polysiloxanes, which achieve certain emulsifying properties by grafting hydrophilic polyether segments onto the polysiloxane backbone via Si-C or Si-OC bonds. Patent EP0341952 further enhances the foam-reducing and antifoaming properties of the emulsion by combining polyorganosiloxanes with polyether-modified polysiloxanes. While polyether-modified polysiloxanes can improve the stability of silicone defoamers in textile printing and dyeing systems, they still cannot address the problem of silicone chain scission in strong acid and alkaline systems, resulting in poor applicability in these systems. Patent CN103074784 proposes a method using starch as a stabilizer to improve the acid and alkali resistance of emulsions. However, the high amount of stabilizer used results in poor foam-reducing and antifoaming properties. Summary of the Invention

[0005] To address the shortcomings of the prior art, the present invention provides a nonionic organosilicon functional additive for a softener. In addition to possessing basic anti-foaming properties, the additive also exhibits good alkali and high-temperature resistance and compatibility, while also providing certain microfoam removal and smoothness. The present invention also discloses a method for preparing the nonionic organosilicon functional additive for a softener, which features a simple process, low operating requirements, and high production efficiency.

[0006] The nonionic silicone functional additive for softening agent of the present invention is composed of the following components:

[0007] A. Amino silicone grease

[0008] The amino silicone grease of the present invention is prepared by a technology known in the technical field, and the specific preparation method is referenced from Examples 1-4 in patent CN201510154143.2.

[0009] B. Alkyl modified silicone oil

[0010] The structural formula of the alkyl-modified silicone oil of the present invention is:

[0011]

[0012] wherein: n is an integer of 6 to 30, preferably an integer of 6 to 22; x is an integer of 5 to 30, preferably an integer of 10 to 25; y is an integer of 1 to 10, preferably an integer of 1 to 5; and z is an integer of 10 to 200, preferably an integer of 50 to 100.

[0013] The amount of the alkyl modified silicone oil in the present invention accounts for 5-15% of the total mass of the organosilicon functional additive.

[0014] C. Silicone polyether

[0015] The structural formula of the silicone polyether of the present invention is:

[0016] (CH3)3SiO{(CH3)2SiO) a (CH3GSiO) b}(CH3)3, G is a polyether group, the structural formula is: -(CH2) f (EO) g (PO) h R, wherein R is -H or -CH3 or -COCH3; the subscripts a, b, f, g, and h represent the degree of polymerization, a is an integer of 10 to 500; b is an integer of 1 to 50; f is an integer of 2 to 6; g is an integer of 1 to 40; and h is an integer of 1 to 60.

[0017] The amount of the silicone polyether used in the present invention accounts for 5-10% of the total mass of the organosilicon functional additive.

[0018] D. Polyether

[0019] The polyether structural formula of the present invention is:

[0020] MO(EO) c (PO) d R 1

[0021] In the molecular structure: all R1 The polyethers may be the same or different and include hydrogen atoms, monovalent substituted or unsubstituted hydrocarbon groups with 1 to 4 carbon atoms, or amino groups, preferably amino groups, specifically selected from methyl, ethyl, propyl, butyl, primary amino groups, secondary amino groups, and N-aminoethylaminopropyl groups. M is a polyether initiator selected from C2-C20 polyols, where c and d represent the degree of polymerization, c being an integer from 1 to 100, and d being an integer from 0 to 80. The polyethers described herein are used in an amount of 5-10% of the total weight of the silicone functional additive.

[0022] E. Nonionic emulsifier

[0023] The nonionic emulsifier of the present invention is a nonionic emulsifier with an HLB value of 10-15, specifically, a compound of a lipophilic emulsifier with an HLB value of 1-6 and a hydrophilic emulsifier with an HLB value of 10-30; the lipophilic emulsifier with an HLB value of 1-6 is selected from sorbitan trioleate, sorbitan tristearate, sorbitan monooleate, and sorbitan monostearate; the hydrophilic emulsifier with an HLB value of 10-30 is selected from polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monopalmitate.

[0024] The amount of the nonionic emulsifier used in the present invention accounts for 2-5% of the total mass of the organosilicon functional additive.

[0025] F. Thickener

[0026] The thickener is selected from nonionic thickeners, specifically selected from polyethylene ether, hydroxyethyl cellulose, xanthan gum, and polyglycerol monolaurate;

[0027] The amount of the thickener used in the present invention accounts for 5-10% of the total mass of the organosilicon functional additive.

[0028] H. Water

[0029] The water described in the present invention is deionized water, and its usage accounts for 45-55% of the total mass of the organosilicon functional additive.

[0030] The preparation method of the nonionic silicone functional additive for softener of the present invention is as follows:

[0031] 1) Add amino silicone grease and alkyl modified silicone oil to a container, start stirring and then add silicone polyether. Heat the mixture while stirring. Raise the temperature to 60-80°C at a speed of 500-2000 rpm and keep it warm for 0.5-1 hour to ensure thorough mixing.

[0032] 2) After the insulation is completed, slowly add the nonionic emulsifier and polyether, start stirring, control the speed at 500-1000 rpm, stir and mix evenly, and keep warm at 60-80°C for 1-2 hours to obtain a mixture P;

[0033] 3) During the heat preservation process, the thickener and water are mixed at 30-40°C until the thickener is completely dissolved in the water to obtain a thickener aqueous solution; after the heat preservation is completed, the thickener aqueous solution is added to the mixture P in stages, maintaining a rotation speed of 500-1000 rpm and a temperature of 50-70°C to allow for sufficient phase inversion, and the mixing time is 1-2 hours;

[0034] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive. DETAILED DESCRIPTION

[0035] Examples of amino silicone grease

[0036] A1: Example 1 in patent CN201510154143.2.

[0037] A2: Example 2 in patent CN201510154143.2.

[0038] A3: Example 3 in patent CN201510154143.2.

[0039] A4: Example 4 in patent CN201510154143.2.

[0040] Alkyl modified silicone oil embodiment

[0041]

[0042] Silicone polyether examples

[0043]

[0044] Polyether Examples

[0045]

[0046] Example 1

[0047] 1) Add 15 parts of amino silicone grease A1 and 12 parts of alkyl-modified silicone oil B1 to a container. Start stirring and add 5 parts of silicone polyether C1. Heat the mixture to 80°C at 500 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0048] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan trioleate and polyoxyethylene sorbitan monooleate with an HLB value of 10 and 10 parts of polyether D1, start stirring at 500 rpm, stir and mix thoroughly, and incubate at 80°C for 2 hours to obtain mixture P1;

[0049] 3) During the heat preservation process, 5 parts of hydroxyethyl cellulose were mixed with 50 parts of water at 32°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P1 in sections, maintaining the rotation speed at 500 rpm and the temperature at 60°C to allow for full phase inversion. The mixing time was 1 hour.

[0050] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0051] Example 2

[0052] 1) Add 25 parts of amino silicone grease A2 and 6 parts of alkyl-modified silicone oil B2 to a container. Start stirring and add 10 parts of silicone polyether C2. Heat the mixture to 75°C at 800 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0053] 2) After the insulation is completed, slowly add 4 parts of a mixture of sorbitan tristearate and polyoxyethylene sorbitan monostearate with an HLB value of 15 and 5 parts of polyether D2, start stirring at 1000 rpm, stir and mix thoroughly, and incubate at 75°C for 2 hours to obtain mixture P2;

[0054] 3) During the heat preservation process, 5 parts of xanthan gum were mixed with 45 parts of water at 35°C until the xanthan gum was completely dissolved in the water to obtain a xanthan gum aqueous solution. After the heat preservation was completed, the xanthan gum aqueous solution was added to the mixture P2 in sections, maintaining a rotation speed of 1000 rpm and a temperature of 50°C to allow for full phase inversion. The mixing time was 1.5 hours.

[0055] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0056] Example 3

[0057] 1) Add 20 parts of amino silicone grease A3 and 6 parts of alkyl-modified silicone oil B3 to a container. After stirring, add 7 parts of silicone polyether C3. Heat the mixture while stirring. Raise the temperature to 60°C at 1000 rpm and keep it warm for 1 hour to ensure thorough mixing.

[0058] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan monooleate with an HLB value of 12 and polyoxyethylene sorbitan monooleate and 5 parts of polyether D3, start stirring at 800 rpm, stir and mix thoroughly, and incubate at 60°C for 2 hours to obtain mixture P3;

[0059] 3) During the heat preservation process, 9 parts of hydroxyethyl cellulose were mixed with 50 parts of water at 40°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P3 in sections, maintaining the rotation speed at 800 rpm and the temperature at 70°C to allow for full phase inversion. The mixing time was 1.5 hours.

[0060] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0061] Example 4

[0062] 1) Add 14 parts of amino silicone grease A4 and 5 parts of alkyl-modified silicone oil B4 to a container. Start stirring and add 5 parts of silicone polyether C4. Heat the mixture to 75°C at 2000 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0063] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan trioleate and polyoxyethylene sorbitan trioleate with an HLB value of 10 and 8 parts of polyether D4, start stirring at 800 rpm, stir and mix thoroughly, and incubate at 75°C for 2 hours to obtain mixture P4;

[0064] 3) During the heat preservation process, 10 parts of polyethylene ether and 55 parts of water were mixed at 40°C until the polyethylene ether was completely dissolved in the water to obtain a polyethylene ether aqueous solution. After the heat preservation was completed, the polyethylene ether aqueous solution was added to the mixture P4 in sections, maintaining a rotation speed of 800 rpm and a temperature of 70°C to allow for full phase inversion. The mixing time was 1.5 hours.

[0065] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0066] Example 5

[0067] 1) Add 12 parts of amino silicone grease A1 and 8 parts of alkyl-modified silicone oil B5 to a container. Start stirring and then add 8 parts of silicone polyether C5. Heat the mixture to 80°C at 1500 rpm while stirring. Keep the mixture warm for 0.5 h to ensure thorough mixing.

[0068] 2) After the insulation is completed, slowly add 4 parts of a mixture of sorbitan monooleate and polyoxyethylene sorbitan tristearate with an HLB value of 15 and 9 parts of polyether D5, start stirring at 1000 rpm, stir and mix thoroughly, and heat at 80°C for 1.5 hours to obtain mixture P5;

[0069] 3) During the heat preservation process, 7 parts of xanthan gum were mixed with 52 parts of water at 35°C until the xanthan gum was completely dissolved in the water to obtain a xanthan gum aqueous solution. After the heat preservation was completed, the xanthan gum aqueous solution was added to the mixture P5 in sections, maintaining a rotation speed of 1000 rpm and a temperature of 50°C to allow for full phase inversion. The mixing time was 1 hour.

[0070] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0071] Example 6

[0072] 1) Add 15 parts of amino silicone grease A2 and 10 parts of alkyl-modified silicone oil B6 to a container. Start stirring and add 6 parts of silicone polyether C6. Heat the mixture while stirring. Raise the temperature to 60°C at 1800 rpm and keep it warm for 0.5 h to ensure thorough mixing.

[0073] 2) After the insulation is completed, slowly add 5 parts of a mixture of sorbitan monostearate and polyoxyethylene sorbitan monolaurate (HLB value 13) and 8 parts of polyether D6, start stirring at 1000 rpm, stir and mix thoroughly, and maintain at 60°C for 1.5 hours to obtain mixture P6;

[0074] 3) During the heat preservation process, 8 parts of hydroxyethyl cellulose were mixed with 48 parts of water at 35°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P6 in sections, maintaining the rotation speed at 1000 rpm and the temperature at 65°C to allow for full phase inversion. The mixing time was 1 hour.

[0075] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0076] Example 7

[0077] 1) Add 18 parts of amino silicone grease A3 and 7 parts of alkyl-modified silicone oil B7 to a container. Start stirring and then add 7 parts of silicone polyether C7. Heat the mixture to 65°C at 1200 rpm while stirring. Keep the mixture warm for 0.5 h to ensure thorough mixing.

[0078] 2) After the insulation is completed, slowly add 2 parts of a mixture of sorbitan trioleate and polyoxyethylene sorbitan monopalmitate (HLB value 12) and 7 parts of polyether D7, start stirring at 500 rpm, stir and mix thoroughly, and incubate at 65°C for 1 hour to obtain mixture P7;

[0079] 3) During the heat preservation process, 9 parts of polyglycerol monolaurate and 50 parts of water were mixed at 38°C until the polyglycerol monolaurate was completely dissolved in the water to obtain a polyglycerol monolaurate aqueous solution. After the heat preservation was completed, the polyglycerol monolaurate aqueous solution was added to the mixture P7 in sections, maintaining the rotation speed at 500 rpm and the temperature at 60°C to achieve full phase inversion. The mixing time was 2 hours.

[0080] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0081] Example 8

[0082] 1) Add 10 parts of amino silicone grease A4 and 15 parts of alkyl-modified silicone oil B8 to a container. Start stirring and add 5 parts of silicone polyether C8. Heat the mixture to 65°C at 2000 rpm while stirring. Keep the mixture warm for 0.5 h to ensure thorough mixing.

[0083] 2) After the insulation is completed, slowly add 2 parts of a mixture of sorbitan monostearate and polyoxyethylene sorbitan tristearate (HLB value 10) and 5 parts of polyether D8, start stirring at 600 rpm, stir and mix thoroughly, and incubate at 65°C for 1 hour to obtain mixture P8;

[0084] 3) During the heat preservation process, 10 parts of hydroxyethyl cellulose and 53 parts of water were mixed at 35°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P8 in sections, maintaining the rotation speed at 600 rpm and the temperature at 60°C to allow for sufficient phase inversion. The mixing time was 2 hours.

[0085] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0086] Comparative Example 1

[0087] 1) Add 15 parts of amino silicone oil and 12 parts of alkyl-modified silicone oil B1 to a container. Start stirring and add 5 parts of silicone polyether C1. Heat the mixture to 80°C at 500 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0088] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan trioleate and polyoxyethylene sorbitan monooleate with an HLB value of 10 and 10 parts of polyether D1, start stirring at 500 rpm, stir and mix thoroughly, and incubate at 80°C for 2 hours to obtain mixture P9;

[0089] 3) During the heat preservation process, 5 parts of hydroxyethyl cellulose were mixed with 50 parts of water at 32°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P9 in sections, maintaining the rotation speed at 500 rpm and the temperature at 60°C to allow for full phase inversion. The mixing time was 1 hour.

[0090] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0091] Comparative Example 2

[0092] 1) Add 25 parts of amino silicone grease A2 and 6 parts of alkyl-modified silicone oil B2 to a container. Start stirring and add 10 parts of silicone polyether C9. Heat the mixture to 75°C at 800 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0093] 2) After the insulation is completed, slowly add 4 parts of a mixture of sorbitan tristearate and polyoxyethylene sorbitan monostearate with an HLB value of 15 and 5 parts of polyether D2, start stirring at 1000 rpm, stir and mix thoroughly, and incubate at 75°C for 2 hours to obtain mixture P10;

[0094] 3) During the heat preservation process, 5 parts of xanthan gum were mixed with 45 parts of water at 35°C until the xanthan gum was completely dissolved in the water to obtain a xanthan gum aqueous solution. After the heat preservation was completed, the xanthan gum aqueous solution was added to the mixture P10 in sections, maintaining a rotation speed of 1000 rpm and a temperature of 50°C to allow for full phase inversion. The mixing time was 1.5 hours.

[0095] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0096] Comparative Example 3

[0097] 1) Add 20 parts of amino silicone grease A3 and 6 parts of hydroxyl-modified silicone oil to a container. Start stirring and add 7 parts of silicone polyether C3. Heat the mixture while stirring. Raise the temperature to 60°C at 1000 rpm and keep it warm for 1 hour to ensure thorough mixing.

[0098] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan monooleate and polyoxyethylene sorbitan monooleate having an HLB value of 12 and 5 parts of polyether D3, start stirring at 800 rpm, stir and mix thoroughly, and incubate at 60°C for 2 hours to obtain a mixture P11;

[0099] 3) During the heat preservation process, 9 parts of hydroxyethyl cellulose were mixed with 50 parts of water at 40°C until the hydroxyethyl cellulose was completely dissolved in the water to obtain a hydroxyethyl cellulose aqueous solution. After the heat preservation was completed, the hydroxyethyl cellulose aqueous solution was added to the mixture P11 in sections, maintaining the rotation speed at 800 rpm and the temperature at 70°C to achieve full phase inversion. The mixing time was 1.5 hours.

[0100] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0101] Comparative Example 4

[0102] 1) Add 14 parts of amino silicone grease A4 and 5 parts of alkyl-modified silicone oil B4 to a container. Start stirring and add 5 parts of silicone polyether C4. Heat the mixture to 75°C at 2000 rpm while stirring. Keep the mixture warm for 1 hour to ensure thorough mixing.

[0103] 2) After the insulation is completed, slowly add 3 parts of a mixture of sorbitan trioleate and polyoxyethylene sorbitan trioleate with an HLB value of 20 and 8 parts of polyether D4, start stirring at 800 rpm, stir and mix thoroughly, and incubate at 75°C for 2 hours to obtain mixture P12;

[0104] 3) During the heat preservation process, 10 parts of polyethylene ether and 55 parts of water were mixed at 40°C until the polyethylene ether was completely dissolved in the water to obtain a polyethylene ether aqueous solution. After the heat preservation was completed, the polyethylene ether aqueous solution was added to the mixture P12 in sections, maintaining a rotation speed of 800 rpm and a temperature of 70°C to allow for sufficient phase inversion. The mixing time was 1.5 hours.

[0105] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0106] Comparative Example 5

[0107] 1) Add 12 parts of amino silicone grease A1 and 8 parts of dimethyl silicone oil to a container, start stirring, then add 8 parts of silicone polyether C5. Heat the mixture to 80°C at 1500 rpm while stirring. Keep the mixture warm for 0.5 h to allow for thorough mixing.

[0108] 2) After the insulation is completed, slowly add 4 parts of a mixture of sorbitan monooleate and polyoxyethylene sorbitan tristearate (HLB value 15) and 9 parts of polyether D5, start stirring at 1000 rpm, stir and mix thoroughly, and incubate at 80°C for 1.5 hours to obtain mixture P13;

[0109] 3) During the heat preservation process, 7 parts of xanthan gum were mixed with 52 parts of water at 35°C until the xanthan gum was completely dissolved in the water to obtain a xanthan gum aqueous solution. After the heat preservation was completed, the xanthan gum aqueous solution was added to the mixture P13 in sections, maintaining a rotation speed of 1000 rpm and a temperature of 50°C to allow for full phase inversion. The mixing time was 1 hour.

[0110] 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

[0111] Performance Testing

[0112] 1) Anti-foaming performance test

[0113] Test method: shake bottle test

[0114] Use a stoppered graduated cylinder to take 50 ml of a commercially available softener aqueous solution with a content of 5‰. At a constant temperature of 60°C, add 0.03 g of a silicone functional additive sample. Cover the bottle with the stopper and shake the graduated cylinder up and down several times at a frequency of 2 times / second and an amplitude of 30-35 cm. Let it stand and start timing. Record the time from when the foam disappears until the page appears. This is the foam elimination and suppression time of this shake bottle test. The test results are as follows:

[0115]

[0116] 2) Compatibility test

[0117] Test method: Place the stoppered graduated cylinder after testing the anti-foaming performance on the table and visually observe the state inside the graduated cylinder. The higher the level, the worse the compatibility.

[0118] Visual inspection according to the following scale:

[0119]

[0120] The test results are as follows:

[0121]

[0122] 3) Acid and alkaline resistance test:

[0123] Acid resistance test method: Add 200ml of pH=3 phosphoric acid solution to a 250ml beaker, then add 4ml of silicone functional additive. Place on an electric stove and slowly heat. When floccules just appear on the liquid surface, record the temperature in the beaker at this time, which is the precipitation temperature. Continue heating and boiling for 5 minutes, then cool to room temperature, observe the liquid surface, and record the precipitation situation.

[0124] Alkali resistance test method: Add 200ml of sodium hydroxide solution (pH=13) to a 250ml beaker, then add 4ml of silicone functional additive. Place on an electric stove and slowly heat. When floccules just appear on the liquid surface, record the temperature in the beaker at this time, which is the precipitation temperature. Continue to heat and boil for 5 minutes, then cool to room temperature, observe the liquid surface, and record the precipitation situation.

[0125] The acid and alkali resistance test results are as follows:

[0126]

Claims

1. A nonionic silicone functional additive for a softener, characterized in that: It is prepared from the following components in percentage by weight: A. Amino silicone grease: The dosage accounts for 10-25% of the total mass of silicone functional additives; B. Alkyl modified silicone oil: The dosage accounts for 5-15% of the total mass of the silicone functional additives; C. Silicone polyether: The dosage accounts for 5-10% of the total mass of silicone functional additives; D. Polyether: The dosage accounts for 5-10% of the total mass of the silicone functional additives; E. Non-ionic emulsifier: The dosage accounts for 2-5% of the total mass of silicone functional additives; F. Thickener: The dosage accounts for 5-10% of the total mass of the organosilicon functional additives; H. Water: The dosage accounts for 45-55% of the total mass of the organosilicon functional additives; The nonionic silicone functional additive is prepared by the following steps: 1) Add amino silicone grease and alkyl modified silicone oil to a container, start stirring and then add silicone polyether. Heat the mixture while stirring. Raise the temperature to 60-80°C at a speed of 500-2000 rpm and keep it warm for 0.5-1 hour to ensure thorough mixing. 2) After the insulation is completed, slowly add the nonionic emulsifier and polyether, start stirring, control the speed at 500-1000 rpm, stir and mix evenly, and keep warm at 60-80°C for 1-2 hours to obtain a mixture P; 3) During the heat preservation process, the thickener and water are mixed at 30-40°C until the thickener is completely dissolved in the water to obtain a thickener aqueous solution; after the heat preservation is completed, the thickener aqueous solution is added to the mixture P in stages, maintaining a rotation speed of 500-1000 rpm and a temperature of 50-70°C to allow for sufficient phase inversion, and the mixing time is 1-2 hours; 4) After mixing, cool to 40°C and emulsify with an emulsifier pump to obtain a uniform emulsion, which is the silicone functional additive.

2. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The amino silicone grease is prepared by a technology known in the technical field, and the specific preparation method is referenced from Examples 1-4 in patent CN201510154143.

2.

3. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The viscosity of the amino silicone oil is selected from 1000-5000 mPa·s.

4. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The silica is prepared by compounding hydrophobic fumed silica and hydrophobic precipitated silica (the amount of hydrophobic precipitated silica is less than that of hydrophobic fumed silica), and is dried in an oven at high temperature in advance.

5. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The alkaline catalyst is specifically selected from potassium hydroxide.

6. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The structural formula of the alkyl modified silicone oil is: Wherein: n is an integer from 6 to 30; x is an integer from 5 to 30; y is an integer from 1 to 10; and z is an integer from 10 to 200.

7. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The structural formula of the silicone polyether is: (CH3)3SiO{(CH3)2SiO) a (CH3GSiO) b }(CH3)3, G is a polyether group, the structural formula is: -(CH2) f (EO) g (PO) h R, wherein R is -H or -CH3 or -COCH3; the subscripts a, b, f, g, and h represent the degree of polymerization, a is an integer of 10 to 500; b is an integer of 1 to 50; f is an integer of 2 to 6; g is an integer of 1 to 40; and h is an integer of 1 to 60.

8. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The polyether structural formula is: IN(EO) c (NIGHT) d R 1 In the molecular structure: all R 1 They may be the same or different, and include hydrogen atoms or monovalent substituted or unsubstituted hydrocarbon groups or amino groups having 1 to 4 carbon atoms, specifically selected from methyl, ethyl, propyl, butyl, primary amino groups, secondary amino groups, and N-aminoethylaminopropyl groups; M is a polyether initiator selected from C2-C20 polyols, wherein c and d are the degrees of polymerization, c is an integer of 1 to 100, and d is an integer of 0 to 80.

9. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The nonionic emulsifier has an HLB value of 10-15, specifically, a compound of a lipophilic emulsifier with an HLB value of 1-6 and a hydrophilic emulsifier with an HLB value of 10-30; the lipophilic emulsifier with an HLB value of 1-6 is selected from sorbitan trioleate, sorbitan tristearate, sorbitan monooleate, and sorbitan monostearate; the hydrophilic emulsifier with an HLB value of 10-30 is selected from polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monopalmitate.

10. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The thickener is selected from nonionic thickeners, specifically selected from polyvinyl ether, hydroxyethyl cellulose, xanthan gum, and polyglycerol monolaurate.

11. The nonionic silicone functional additive for softener according to claim 1, characterized in that: The water is deionized water.

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