A process for the production of a cationic thickener

Abstract

The present application relates to the technical field of dye thickener production, and particularly relates to a cationic dye thickener production process.The technical scheme comprises the following steps: preparing a temperature stabilizer, weighing sulfonated phenolic resin, amino sulfonic acid and dodecyl benzene sulfonic acid, adding them into a stainless steel reaction kettle for mixing and stirring, the stirring speed is 300-500 r / min, and the temperature stabilizer is prepared by cooling; preparing an acid and alkali resistant agent, specifically comprising the following steps, mica powder pretreatment: putting 12-22 parts of mica powder into a ball mill, adding steel balls with a diameter of 6-8 mm, and fully grinding.The present application effectively improves the stability of the thickener, ensures that the thickening effect of the thickener is not affected under high or low temperature conditions, makes the thickener suitable for some special processes or environments, and at the same time ensures that the thickening effect of the thickener is not affected under different pH conditions, avoiding the limitation of the use of the thickener in acidic or alkaline environments.

Description

Technical Field

[0001] This invention relates to the field of dye thickener production technology, and in particular to a production process for cationic dye thickeners. Background Technology

[0002] Thickeners are a new type of functional polymer material that has developed rapidly in recent years. They are mainly used to increase the viscosity or consistency of products, and are characterized by small dosage, significant thickening effect, and ease of use. They are widely used in pharmaceuticals, printing and dyeing, cosmetics, food additives, oil extraction, papermaking, leather processing, and other industries. Thickeners, also known as gelling agents, are substances that increase the viscosity of latex and liquids; when used in food, they are called pastes. Thickeners can increase the viscosity of a system, keeping it in a uniform and stable suspension or emulsion state, or forming a gel; most thickeners also have emulsifying properties. They can be divided into two main categories: natural and synthetic. Most natural products are derived from plants and seaweed containing polysaccharide-based viscous substances, such as starch, gum arabic, pectin, agar, gelatin, seaweed gum, carrageenan, and dextrin. General-purpose gelatin, soluble starch, and polysaccharide derivatives can be used in cosmetics. Synthetic products include carboxymethyl cellulose, propylene glycol alginate, methyl cellulose, sodium starch phosphate, sodium carboxymethyl cellulose, sodium alginate, casein, sodium polyacrylate, polyoxyethylene, and polyvinylpyrrolidone.

[0003] Thickeners are widely used in food (such as food additives added to sauces, jams, ice cream, canned goods, etc. to increase the viscosity of food or form gels), cosmetics, detergents, latex, printing and dyeing, pharmaceuticals, rubber, coatings, etc.

[0004] Existing dye thickeners may have the following performance defects:

[0005] Temperature limitations: Some dye thickeners are unstable under high or low temperature conditions, which reduces or eliminates their thickening effect, limiting their applicability to some special processes or environments.

[0006] Thickening effect is affected by pH: Some dye thickeners are sensitive to the pH value of the environment. When the pH value exceeds a certain range, the thickening effect will decrease, which limits the use of thickeners in acidic or alkaline environments.

[0007] To overcome these shortcomings, there is a need to further develop more efficient, stable, and widely applicable dye thickeners to meet the needs of various industrial sectors. Therefore, this application proposes a production process for cationic dye thickeners. Summary of the Invention

[0008] The purpose of this invention is to address the problem in the prior art that temperature and pH affect the stability of dye thickeners, and to propose a production process for cationic dye thickeners.

[0009] The technical solution of this invention: a production process for cationic dye thickeners, comprising the following steps:

[0010] Step S1: Prepare a temperature stabilizer by weighing sulfonated phenolic resin, aminosulfonic acid and dodecylbenzene sulfonic acid and adding them to a stainless steel reactor for mixing and stirring at a speed of 300-500 r / min. Cool the mixture to obtain the temperature stabilizer.

[0011] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0012] Step S201, mica powder pretreatment: Place 12-22 parts by weight of mica powder into a ball mill, add steel balls with a diameter of 6-8 mm, and grind thoroughly. After grinding, take out the grinding material and wash it with deionized water to obtain fine mica powder.

[0013] Step S202, Ion exchange treatment: Mix fine mica powder with ion exchange resin and mix by ultrasonic vibration to bring the mica powder and resin into contact and carry out the ion exchange reaction. Ultrasonic vibration for 20-40 minutes.

[0014] Step S203, washing and drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately to obtain modified mica powder.

[0015] Step S3: Prepare a preliminary thickener by weighing sodium carboxymethyl cellulose, polyacrylamide, glycerol and water and adding them to a reaction vessel to mix and obtain a mixture.

[0016] Step S4: Take 4-9 parts by weight of the temperature stabilizer and 5-10 parts by weight of the modified mica powder obtained above, add them to the mixture and stir for 30-90 minutes until uniform to obtain the cationic dye thickener.

[0017] Optionally, in step S1, 0.3-1.6 parts by weight of sulfonated phenolic resin, 0.2-1.2 parts by weight of aminosulfonic acid and 1.0-2.0 parts by weight of dodecylbenzenesulfonic acid are weighed and added to a stainless steel reactor for mixing and stirring.

[0018] Optionally, in step S201, a high-energy planetary ball mill is used for grinding, with a ball mill speed of 300-400 r / min and a ball milling time of 15-25 min.

[0019] Optionally, in step S201, the washing is performed 5-7 times, and the single spray washing time is 10-20 seconds. After washing, the product is dried by environmental irradiation with a light intensity of 200,000-210,000 lx.

[0020] Optionally, the ion exchange resin is prepared by mixing aliphatic polyamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2.

[0021] Optionally, the ultrasonic oscillator has an output power of 300-400W and performs ultrasonic oscillation at an ultrasonic frequency of 20kHz-40kHz.

[0022] Optionally, in step S3, a thickener is prepared by weighing 20-43 parts by weight of sodium carboxymethyl cellulose, 6-12 parts by weight of polyacrylamide, 5-15 parts by weight of glycerol and 30-66 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0023] Optionally, in step S203, after washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx.

[0024] Optionally, in step S1, the stainless steel reactor is heated to 66-95°C during stirring and mixing, and the stirring time is 1-2 hours.

[0025] Optionally, in step S4, a stainless steel mixer is used for mixing, with a mixer speed of 300-600 rad / min and a mixing temperature controlled at 35-65℃.

[0026] Compared with the prior art, the present invention has the following beneficial technical effects:

[0027] This invention uses sodium carboxymethyl cellulose as the main thickener and glycerol and polyacrylamide as auxiliary thickeners. A temperature stabilizer, prepared by mixing sulfonated phenolic resin, aminosulfonic acid, and dodecylbenzene sulfonic acid, is incorporated into the preparation of the thickener. This makes the thickening effect of the thickener on the product minimally affected by temperature changes, effectively improving the stability of the thickener and ensuring that the thickening effect is not affected under high or low temperature conditions. This makes the thickener suitable for some special processes or environments.

[0028] This invention incorporates modified mica powder into the preparation of thickeners, making the thickening effect of the thickener on the product minimally affected by pH, effectively improving the stability of the thickener, ensuring that the thickening effect of the thickener is not affected under different pH conditions, and avoiding the limitations of using thickeners in acidic or alkaline environments.

[0029] This invention effectively improves the stability of thickeners, ensuring that the thickening effect of thickeners is not affected under high or low temperature conditions, making thickeners suitable for some special processes or environments. At the same time, it ensures that the thickening effect of thickeners is not affected under different pH conditions, avoiding the limitations of using thickeners in acidic or alkaline environments. Detailed Implementation

[0030] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0031] Example 1

[0032] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0033] Step S1: Prepare a temperature stabilizer by weighing 0.3 parts by weight of sulfonated phenolic resin, 0.2 parts by weight of aminosulfonic acid and 1.0 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 66°C, the stirring time is 1 hour, the stirring speed is 300 r / min, and the temperature stabilizer is obtained after cooling.

[0034] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0035] Step S201, mica powder pretreatment: 12 parts by weight of mica powder are placed in a ball mill, and steel balls with a diameter of 6 mm are added. The ball mill is ground using a high-energy planetary ball mill at a speed of 300 r / min for 15 min. After grinding, the material is removed and washed with deionized water for 5 times, with each wash lasting 10 seconds. After washing, the material is irradiated with light intensity of 200,000 lx and drained to obtain fine mica powder.

[0036] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed using an ultrasonic vibrator with an output power of 300W and an ultrasonic frequency of 20kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration lasts for 20 minutes.

[0037] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0038] Step S3: Prepare a thickener by weighing 20 parts by weight of sodium carboxymethyl cellulose, 6 parts by weight of polyacrylamide, 5 parts by weight of glycerol and 30 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0039] Step S4: Take 4 parts by weight of the temperature stabilizer and 5 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 30 minutes. Use a stainless steel mixer to mix. The mixer speed is 300 rad / min. The temperature during stirring is controlled at 35℃. Stir until uniform to obtain the cationic dye thickener.

[0040] Example 2

[0041] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0042] Step S1: Prepare a temperature stabilizer by weighing 0.5 parts by weight of sulfonated phenolic resin, 0.5 parts by weight of aminosulfonic acid and 1.3 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 72°C, the stirring time is 1.2 hours, the stirring speed is 350 r / min, and the temperature stabilizer is obtained after cooling.

[0043] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0044] Step S201, mica powder pretreatment: 14 parts by weight of mica powder were placed in a ball mill, and steel balls with a diameter of 7 mm were added. The ball mill was used for grinding with a high-energy planetary ball mill at a speed of 340 r / min for 18 min. After grinding, the material was removed and washed with deionized water for 6 times, with each wash lasting 12 seconds. After washing, the material was subjected to environmental irradiation with a light intensity of 200,000 lx and drained to obtain fine mica powder.

[0045] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed using an ultrasonic vibrator with an output power of 340W and an ultrasonic frequency of 25kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration lasts for 25 minutes.

[0046] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0047] Step S3: Prepare a thickener by weighing 28 parts by weight of sodium carboxymethyl cellulose, 9 parts by weight of polyacrylamide, 9 parts by weight of glycerol and 44 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0048] Step S4: Take 6 parts by weight of the temperature stabilizer and 7 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 40 minutes. Use a stainless steel mixer to mix. The mixer speed is 390 rad / min. The temperature during stirring is controlled at 45℃. Stir until uniform to obtain the cationic dye thickener.

[0049] Example 3

[0050] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0051] Step S1: Prepare a temperature stabilizer by weighing 1.0 parts by weight of sulfonated phenolic resin, 0.7 parts by weight of aminosulfonic acid and 1.5 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 78°C, the stirring time is 1.5 hours, the stirring speed is 400 r / min, and the temperature stabilizer is obtained after cooling.

[0052] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0053] Step S201, mica powder pretreatment: 17 parts by weight of mica powder were placed in a ball mill, and steel balls with a diameter of 7 mm were added. The ball mill was used for grinding with a high-energy planetary ball mill at a speed of 350 r / min for 20 min. After grinding, the material was removed and washed with deionized water for 6 times, with each wash lasting 15 s. After washing, the material was subjected to environmental irradiation with a light intensity of 205,000 lx and drained to obtain fine mica powder.

[0054] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed by an ultrasonic vibrator with an output power of 350W and an ultrasonic frequency of 30kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration is performed for 30 minutes.

[0055] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0056] Step S3: Prepare a thickener by weighing 32 parts by weight of sodium carboxymethyl cellulose, 9 parts by weight of polyacrylamide, 10 parts by weight of glycerol and 48 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0057] Step S4: Take 7 parts by weight of the temperature stabilizer and 8 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 60 minutes. Use a stainless steel mixer to mix. The mixer speed is 450 rad / min. The temperature during stirring is controlled at 50℃. Stir until uniform to obtain the cationic dye thickener.

[0058] Example 4

[0059] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0060] Step S1: Prepare a temperature stabilizer by weighing 1.2 parts by weight of sulfonated phenolic resin, 1.0 parts by weight of aminosulfonic acid and 1.8 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 88°C, the stirring time is 1.8 hours, the stirring speed is 450 r / min, and the temperature stabilizer is obtained after cooling.

[0061] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0062] Step S201, mica powder pretreatment: 19 parts by weight of mica powder were placed in a ball mill, and steel balls with a diameter of 7 mm were added. The ball mill was used for grinding with a high-energy planetary ball mill at a speed of 380 r / min for 22 min. After grinding, the material was removed and washed with deionized water for 6 times, with each wash lasting 18 s. After washing, the material was subjected to environmental irradiation with a light intensity of 208,000 lx and drained to obtain fine mica powder.

[0063] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed by an ultrasonic vibrator with an output power of 380W and an ultrasonic frequency of 35kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration is performed for 35 minutes.

[0064] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0065] Step S3: Prepare a thickener by weighing 38 parts by weight of sodium carboxymethyl cellulose, 10 parts by weight of polyacrylamide, 12 parts by weight of glycerol and 60 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0066] Step S4: Take 7 parts by weight of the temperature stabilizer and 8 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 80 minutes. Use a stainless steel mixer to mix. The mixer speed is 550 rad / min. The temperature during stirring is controlled at 60℃. Stir until uniform to obtain the cationic dye thickener.

[0067] Example 5

[0068] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0069] Step S1: Prepare a temperature stabilizer by weighing 1.6 parts by weight of sulfonated phenolic resin, 1.2 parts by weight of aminosulfonic acid and 2.0 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 95°C, the stirring time is 2 hours, the stirring speed is 500 r / min, and the temperature stabilizer is obtained after cooling.

[0070] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0071] Step S201, mica powder pretreatment: 22 parts by weight of mica powder were placed in a ball mill, and steel balls with a diameter of 8 mm were added. The ball mill was used for grinding with a high-energy planetary ball mill at a speed of 400 r / min for 25 min. After grinding, the material was removed and washed with deionized water for 7 times, with each wash lasting 20 s. After washing, the material was subjected to environmental irradiation with a light intensity of 210,000 lx and drained to obtain fine mica powder.

[0072] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed by an ultrasonic vibrator with an output power of 400W and an ultrasonic frequency of 40kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration lasts for 40 minutes.

[0073] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0074] Step S3: Prepare a thickener by weighing 43 parts by weight of sodium carboxymethyl cellulose, 12 parts by weight of polyacrylamide, 15 parts by weight of glycerol and 66 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0075] Step S4: Take 9 parts by weight of the temperature stabilizer and 10 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 90 minutes. Use a stainless steel mixer to mix. The mixer speed is 600 rad / min. The temperature during stirring is controlled at 65℃. Stir until uniform to obtain the cationic dye thickener.

[0076] Comparative Example 1

[0077] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0078] Step S1: Prepare a temperature stabilizer by weighing 0.2 parts by weight of aminosulfonic acid and 1.0 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During mixing, the stainless steel reactor is heated to 66°C, the stirring time is 1 hour, the stirring speed is 300 r / min, and the temperature stabilizer is obtained after cooling.

[0079] Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps:

[0080] Step S201, mica powder pretreatment: 12 parts by weight of mica powder are placed in a ball mill, and steel balls with a diameter of 6 mm are added. The ball mill is ground using a high-energy planetary ball mill at a speed of 300 r / min for 15 min. After grinding, the material is removed and washed with deionized water for 5 times, with each wash lasting 10 seconds. After washing, the material is irradiated with light intensity of 200,000 lx and drained to obtain fine mica powder.

[0081] Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin, wherein the ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:2. The mixture is vibrated and mixed using an ultrasonic vibrator with an output power of 300W and an ultrasonic frequency of 20kHz to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration lasts for 20 minutes.

[0082] Step S203, Washing and Drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately. After washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx to obtain modified mica powder.

[0083] Step S3: Prepare a thickener by weighing 20 parts by weight of sodium carboxymethyl cellulose, 6 parts by weight of polyacrylamide, 5 parts by weight of glycerol and 30 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0084] Step S4: Take 4 parts by weight of the temperature stabilizer and 5 parts by weight of the modified mica powder obtained above and add them to the mixture. Stir and mix for 30 minutes. Use a stainless steel mixer to mix. The mixer speed is 300 rad / min. The temperature during stirring is controlled at 35℃. Stir until uniform to obtain the cationic dye thickener.

[0085] Comparative Example 2

[0086] The only difference between this comparative example and Example 1 is that it does not contain aminosulfonic acid.

[0087] Comparative Example 3

[0088] The only difference between this comparative example and Example 1 is that it does not contain dodecylbenzenesulfonic acid.

[0089] Comparative Example 4

[0090] The present invention proposes a production process for cationic dye thickeners, comprising the following steps:

[0091] Step S1: Prepare a temperature stabilizer by weighing 0.3 parts by weight of sulfonated phenolic resin, 0.2 parts by weight of aminosulfonic acid and 1.0 parts by weight of dodecylbenzenesulfonic acid and adding them to a stainless steel reactor for mixing and stirring. During the mixing process, the stainless steel reactor is heated to 66°C, the stirring time is 1 hour, the stirring speed is 300 r / min, and the temperature stabilizer is obtained after cooling.

[0092] Step S2: Prepare a thickener by weighing 20 parts by weight of sodium carboxymethyl cellulose, 6 parts by weight of polyacrylamide, 5 parts by weight of glycerol and 30 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture.

[0093] Step S3: Take 4 parts by weight of the temperature stabilizer obtained above and add it to the mixture. Stir and mix for 30 minutes. Use a stainless steel mixer to mix. The mixer speed is 300 rad / min. The temperature during stirring is controlled at 35℃. Stir until uniform to obtain cationic dye thickener.

[0094] Table 1. Raw material composition of Examples 1-5 and Comparative Examples 1-4

[0095]

[0096] To verify the technical effect of the thickener prepared by the present invention, the thickeners obtained in Examples 1-5 and Comparative Examples 1-4 were subjected to performance tests.

[0097] Temperature resistance test: The thickeners prepared in Examples 1-5 and Comparative Examples 1-4 were added to rapeseed oil. The viscosity of the rapeseed oil was measured at different temperatures before and after the addition of the thickeners. The test results are shown in the table below:

[0098] Table 2. Temperature resistance test data of thickeners prepared in Examples 1-5 and Comparative Examples 1-4

[0099]

[0100] The data above shows that the thickeners prepared in Examples 1-5 are minimally affected by temperature changes in their thickening effect on the product, while in Comparative Examples 1-4, the thickening effect varies significantly with temperature after the raw material formulation of the present invention was modified. Therefore, it can be concluded that the thickener prepared in this invention has good temperature resistance and excellent temperature stability.

[0101] Acid and alkali resistance test: The thickeners prepared in Examples 1-5 and Comparative Examples 1-4 were added to rapeseed oil. The viscosity of the rapeseed oil was tested under different acid and alkali conditions before and after the addition of the thickeners. The test results are shown in the table below:

[0102] Table 3. Acid and alkali resistance test data of the thickeners prepared in Examples 1-5 and Comparative Examples 1-4

[0103]

[0104] The data above shows that the thickeners prepared in Examples 1-5 are minimally affected by changes in pH. However, comparisons of Comparative Examples 1-3 and 4 reveal that the thickening effect varies significantly with pH after altering the raw material formulation. Particularly in the comparative examples without modified mica powder, the thickening effect is most significantly affected by pH. Therefore, it can be concluded that the thickeners prepared in this invention possess excellent acid and alkali resistance.

[0105] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A process for producing cationic dye thickeners, characterized in that, Includes the following steps: Step S1: Prepare a temperature stabilizer by weighing sulfonated phenolic resin, aminosulfonic acid and dodecylbenzene sulfonic acid and adding them to a stainless steel reactor for mixing and stirring at a speed of 300-500 r / min. Cool the mixture to obtain the temperature stabilizer. Step S2, preparing an acid and alkali resistant agent, specifically includes the following steps: Step S201, mica powder pretreatment: Place 12-22 parts by weight of mica powder into a ball mill, add steel balls with a diameter of 6-8 mm, and grind thoroughly. After grinding, take out the grinding material and wash it with deionized water to obtain fine mica powder. Step S202, Ion exchange treatment: Fine mica powder is mixed with ion exchange resin and mixed by ultrasonic vibration to bring the mica powder into contact with the resin and carry out the ion exchange reaction. The ultrasonic vibration is performed for 20-40 minutes. The ion exchange resin is prepared by mixing polyacrylamide silica gel resin and polyethyleneimine silica gel resin in a volume ratio of 1:

2. Step S203, washing and drying: The mica powder that has undergone the ion exchange reaction is washed with deionized water to remove residual ion exchange resin. Finally, the mica powder is dried appropriately to obtain modified mica powder. Step S3: Prepare a preliminary thickener by weighing 20-43 parts by weight of sodium carboxymethyl cellulose, 6-12 parts by weight of polyacrylamide, 5-15 parts by weight of glycerol and 30-66 parts by weight of water and adding them to a reaction vessel to mix and obtain a mixture. Step S4: Take 4-9 parts by weight of the temperature stabilizer and 5-10 parts by weight of the modified mica powder obtained above, add them to the mixture and stir for 30-90 minutes until uniform to obtain the cationic dye thickener.

2. The production process of a cationic dye thickener according to claim 1, characterized in that, In step S1, 0.3-1.6 parts by weight of sulfonated phenolic resin, 0.2-1.2 parts by weight of aminosulfonic acid and 1.0-2.0 parts by weight of dodecylbenzenesulfonic acid are weighed and added to a stainless steel reactor for mixing and stirring.

3. The production process of a cationic dye thickener according to claim 1, characterized in that, Step S201: Grinding is carried out using a high-energy planetary ball mill with a speed of 300-400 r / min and a grinding time of 15-25 min.

4. The production process of a cationic dye thickener according to claim 1, characterized in that, In step S201, the washing is performed 5-7 times, and each spray washing time is 10-20 seconds. After washing, the product is dried by environmental irradiation with a light intensity of 200,000-210,000 lx.

5. The production process of a cationic dye thickener according to claim 1, characterized in that, The ultrasonic oscillator has an output power of 300-400W and performs ultrasonic oscillation at an ultrasonic frequency of 20kHz-40kHz.

6. The production process of a cationic dye thickener according to claim 1, characterized in that, In step S203, after washing, the drying process is carried out by irradiation with an ambient light intensity of 210,000 lx.

7. The production process of a cationic dye thickener according to claim 1, characterized in that, In step S1, the stainless steel reactor is heated to 66-95°C during stirring and mixing, and the stirring time is 1-2 hours.

8. The production process of a cationic dye thickener according to claim 1, characterized in that, In step S4, a stainless steel mixer is used for mixing, with a mixer speed of 300-600 rad / min and a mixing temperature of 35-65℃.

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