Environment-friendly alkyl glycoside thickening agent as well as preparation method and application thereof

Abstract

The invention discloses an environment-friendly alkyl glycoside thickening agent as well as a preparation method and application thereof, and belongs to the field of chemical additive manufacturing. Comprising the following steps: step 1, soaking carbomer in water for 8-10 hours, then heating to 20-40 DEG C, and uniformly stirring; 2, adding alkyl glycoside, and uniformly stirring under the temperature condition of 20-40 DEG C; 3, adding a triethanolamine aqueous solution for neutralization, and uniformly stirring; and step 4, cooling to room temperature to obtain the thickening agent. The thickening agent prepared by the invention is good in stability, environment-friendly and pollution-free, can be completely biodegraded, and is an environment-friendly auxiliary agent; the method is simple to operate, convenient to use and convenient for industrial production; the raw materials used in the invention are low in cost, and have no corrosion to each device, so that the cost can be saved, and the utilization rate of the device can be improved at the same time.

Description

Technical Field

[0001] The invention belongs to the field of chemical additive manufacturing, and specifically relates to an environmentally friendly alkyl glycoside thickener and a preparation method thereof. Background Art

[0002] There are many thickeners currently sold on the market. They can be divided into low molecular weight thickeners and high molecular weight thickeners according to their relative molecular mass. They can also be further classified according to the functional groups contained in their molecules. The main ones include inorganic thickeners, celluloses, fatty alcohols, fatty acids, ethers, polyacrylates and associative polyurethane thickeners, etc. Their comprehensive performance needs to be improved.

[0003] As the times progress, people's environmental awareness is improving, and the requirements for environmental protection are getting higher and higher, and the environmental protection requirements for thickeners are also getting higher and higher. As the concept of environmental protection is deeply rooted in the hearts of the people, the demand for environmentally friendly thickeners in various industries continues to rise, driving the continuous expansion of the market scale. In 2024, the global thickener market size is about US$16.92 billion, and it is expected to grow in the future. As an important development direction, environmentally friendly thickeners are driven by market demand and their share is gradually expanding, attracting many companies to layout and further promote the growth of the market scale. Against the backdrop of the growing global demand for environmentally friendly thickeners, the Chinese market has performed outstandingly. China has a huge consumer group and a continuously developing industrial system, and has a strong demand for environmentally friendly thickeners, becoming a key force driving the growth of the global market. Many companies have increased their investment and layout in the Chinese market.

[0004] In factory aquaculture, oxygenation technology for aquaculture water is one of the key technologies. The level of dissolved oxygen content directly affects the density of aquaculture and the growth rate of fish. When the dissolved oxygen content is insufficient, it will cause anaerobic decomposition of organic matter, ammonia nitrogen and other fish excrement in the water, produce toxic substances, and cause a large number of farmed fish to be infected and die. At present, mechanical equipment is mainly used to add water with high dissolved oxygen content to the aquaculture water, or to make water fully contact with air to continuously add oxygen to achieve an increase in dissolved oxygen value. However, the existing oxygenation devices generally have low oxygenation efficiency.

[0005] Traditional aquaculture oxygenators often have low dissolved oxygen rate and uneven distribution due to insufficient viscosity, which affects the oxygenation effect. Existing thickeners mostly contain synthetic polymer compounds (such as polyacrylamide), which have poor biodegradability, environmental pollution risks, and complex preparation processes. Although carbomer has thickening properties, it requires a complex neutralization process and is costly when used alone; alkyl polyglycoside (APG) is a natural surfactant that has both thickening and environmental protection properties, but there has been no research on its synergistic use with carbomer to improve the viscosity of oxygenators.

[0006] Therefore, there is an urgent need for a thickener with simple process, environmental protection, high efficiency and industrialization. Therefore, it is meaningful to study thickeners that can meet the needs in this regard. Summary of the Invention

[0007] The object of the present invention is to provide a preparation method of an environmentally friendly alkyl polyglycoside thickener for aquaculture aeration, which can not only meet the performance requirements but also meet the increasingly stringent environmental protection requirements.

[0008] The technical solution to achieve the above object is: a preparation method of an environmentally friendly alkyl polyglycoside thickener, characterized by including the following steps: Step 1: Soak carbomer in water for 8 to 10 hours, then raise the temperature to 20 to 40 °C and stir evenly; Step 2: Add alkyl polyglycoside and stir evenly under the temperature condition of 20 to 40 °C; Step 3: Add triethanolamine aqueous solution for neutralization and stir evenly again; Step 4: Cool to room temperature to obtain the thickener.

[0009] Further, the weight parts of water are 73 to 87 parts, the weight parts of carbomer are 2 to 5 parts, the weight parts of triethanolamine aqueous solution are 1 to 2 parts, and the weight parts of alkyl polyglycoside are 10 to 20 parts.

[0010] Further, the carbomer includes two types, namely carbomer 941 and carbomer 2020, and the mass ratio of carbomer 941 to carbomer 2020 is 1:1 to 2.

[0011] Further, the alkyl polyglycoside used is alkyl polyglycoside APG0814, and the solid content is 50%.

[0012] Further, the weight concentration of triethanolamine in the triethanolamine aqueous solution is 10% to 30%.

[0013] Further, the water in Step 1 is deionized water; Another object of the present invention is to provide a thickener prepared by the above preparation method.

[0014] The third object of the present invention is to provide an application of a thickener. The thickener prepared in claim 7 is added to the aerator and mixed evenly to increase the viscosity of the aerator.

[0015] Advantages of the present invention: 1) The thickener prepared by the present invention has good stability, is environmentally friendly, pollution-free, and can also be completely biodegradable, which is an environmentally friendly additive; 2) The operation of the present invention is simple, easy to use, and convenient for industrial production; 3) The raw materials used in the present invention have relatively low costs, and have no corrosiveness to various equipment, which can save costs and improve the utilization rate of equipment at the same time; 4) The oxygen-increasing agent prepared by this method is more convenient to use; 5) It is prepared under the temperature condition of 20~40°C, without special equipment, the time-consuming is <1 hour, and the energy consumption is low; 6) Innovation in component ratio: Through the synergistic effect of the carbomer-triethanolamine gel system and APG, the performance bottleneck of a single thickener is broken through; 7) Process innovation: One-step preparation at room temperature, avoiding high-temperature energy consumption and complex neutralization steps; 8) Application innovation: APG is introduced into the field of aquaculture oxygenation for the first time, with dual values of thickening and environmental protection.

[0016] The present invention is applicable to the thickening of liquid oxygen-increasing agents, such as liquid oxygen-increasing agents like hydrogen peroxide solution, sodium percarbonate compound solution, and calcium peroxide suspension. After the present invention is applied to the thickening of oxygen-increasing agents, the viscosity becomes larger, the operation is convenient, and it is easier to dissolve oxygen. An oxygen-increasing agent with a normal viscosity of about 300 mPa·s is not conducive to dissolving oxygen, and its viscosity needs to be increased to more than 2000 mPa·s. Only at this viscosity can the oxygen dissolution ability of the oxygen-increasing agent become better, and at the same time, the operation is also convenient. Specific implementation method

[0017] The technical solution of the present invention will be further described below in conjunction with embodiments.

[0018] Example 1

[0019] An environment-friendly alkyl polyglycoside thickener and its preparation method are as follows: (1) Soak a total of 2 parts by weight of carbomer 941 and carbomer 2020 (mass ratio = 1:1) in 87 parts by weight of deionized water for 8 h, and then stir evenly at 20°C; (2) Add 10 parts by weight of alkyl polyglycoside APG0814 (solid content is 50%), and stir evenly while maintaining the temperature condition of 20°C; (3) Add an aqueous solution containing 1 part by weight of triethanolamine (weight concentration of triethanolamine is 30%) for neutralization, and then stir evenly; (4) Cool down to room temperature to obtain the required thickener.

[0020] Final result: The obtained thickener is directly added to the oxygen-increasing agent (add 10 g of thickener to every 1000 g of oxygen-increasing agent, and the oxygen-increasing agent is specifically the oxygen speed protection produced by Liyang Company), and mixed and stirred evenly, which can increase the oxygen-increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 2500 mPa·s.

[0021] Example 2

[0022] An environmentally friendly alkyl polyglycoside thickener and its preparation method are as follows: (1) Soak a total of 5 parts by weight of Carbopol 941 and Carbopol 2020 (mass ratio = 1:2) in 73 parts by weight of deionized water for 10 h, and then stir evenly at 30 °C; (2) Add 20 parts by weight of alkyl polyglycoside APG0814 (solid content is 50%), and stir evenly under the condition of maintaining the temperature at 30 °C; (3) Add 2 parts by weight of triethanolamine aqueous solution (weight concentration of triethanolamine is 10%) for neutralization, and then stir evenly; (4) Cool down to room temperature to obtain the required thickener.

[0023] Final result: The obtained thickener is directly added to the oxygen increasing agent (add 10 g of thickener to every 1000 g of oxygen increasing agent, and the oxygen increasing agent is specifically Oxygen Speed produced by Liyang Company), and mix and stir evenly, which can increase the oxygen increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 5000 mPa·s.

[0024] Example 3

[0025] An environmentally friendly alkyl polyglycoside thickener and its preparation method are as follows: (1) Soak a total of 3 parts by weight of Carbopol 941 and Carbopol 2020 (mass ratio = 1:1.5) in 80.5 parts by weight of deionized water for 10 h, and then stir evenly at 30 °C; (2) Add 15 parts by weight of alkyl polyglycoside APG0814 (solid content is 50%), and stir evenly under the condition of maintaining the temperature at 30 °C; (3) Add 1.5 parts by weight of triethanolamine aqueous solution (weight concentration of triethanolamine is 20%) for neutralization, and then stir evenly; (4) Cool down to room temperature to obtain the required thickener.

[0026] Final result: The obtained thickener is directly added to the oxygen increasing agent (add 10 g of thickener to every 1000 g of oxygen increasing agent, and the oxygen increasing agent is specifically Oxygen Speed produced by Liyang Company), and mix and stir evenly, which can increase the oxygen increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 3000 mPa·s.

[0027] Example 4

[0028] An environmentally friendly alkyl polyglycoside thickener and its preparation method are as follows: (1) Soak a total of 4 parts by weight of Carbopol 941 and Carbopol 2020 (mass ratio = 1:2) in 80 parts by weight of deionized water for 8 h, and then stir evenly at 40 °C; (2) Add 15 parts by weight of alkyl polyglycoside APG0814 (solid content is 50%), and stir evenly under the condition of maintaining the temperature at 40 °C; (3) Add 2 parts by weight of triethanolamine aqueous solution (weight concentration of triethanolamine is 20%) for neutralization, and then stir evenly; (4) Cool down to room temperature to obtain the required thickener.

[0029] Final result: The obtained thickener is directly added to the oxygen increasing agent (add 10 g of thickener to every 1000 g of oxygen increasing agent, and the oxygen increasing agent is specifically Oxybao produced by Liyang Company), and mixed and stirred evenly, which can increase the oxygen increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 4000 mPa·s.

[0030] Example 5

[0031] An environment-friendly alkyl polyglycoside thickener and its preparation method are as follows: (1) Soak a total of 5 parts by weight of Carbopol 941 and Carbopol 2020 (mass ratio = 1:2) in 81 parts by weight of deionized water for 9 h, and then stir evenly at 40 °C; (2) Add 13 parts by weight of alkyl polyglycoside APG0814 (solid content is 50%), and stir evenly under the condition of maintaining the temperature at 40 °C; (3) Add 1 part by weight of triethanolamine aqueous solution (weight concentration of triethanolamine is 20%) for neutralization, and then stir evenly; (4) Cool down to room temperature to obtain the required thickener.

[0032] Final result: The obtained thickener is directly added to the oxygen increasing agent (add 10 g of thickener to every 1000 g of oxygen increasing agent, and the oxygen increasing agent is specifically Oxybao produced by Liyang Company), and mixed and stirred evenly, which can increase the oxygen increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 3500 mPa·s.

[0033] Comparative example Add a conventional thickener (specifically an amine oxide thickener) to the oxygen increasing agent (add 10 g of thickener to every 1000 g of oxygen increasing agent, and the oxygen increasing agent is specifically Oxybao produced by Liyang Company), and directly mix and stir evenly, which can increase the oxygen increasing agent with a normal viscosity of about 300 mPa·s to a viscosity of about 3000 mPa·s.

[0034] Dissolved oxygen test (simulating a culture pond, water body at 30 °C): In Example 1, by mixing the oxygenating agent of the thickener of the present invention, the dissolved oxygen rate is increased by 20%, and the oxygen maintenance time is extended by 1 hour.

[0035] In Example 2, by mixing the oxygenating agent of the thickener of the present invention, the dissolved oxygen rate is increased by 40%, and the oxygen maintenance time is extended by 2 hours.

[0036] In Example 3, by mixing the oxygenating agent of the thickener of the present invention, the dissolved oxygen rate is increased by 30%, and the oxygen maintenance time is extended by 1.5 hours.

[0037] In Example 4, by mixing the oxygenating agent of the thickener of the present invention, the dissolved oxygen rate is increased by 25%, and the oxygen maintenance time is extended by 1.4 hours.

[0038] In Example 5, by mixing the oxygenating agent of the thickener of the present invention, the dissolved oxygen rate is increased by 35%, and the oxygen maintenance time is extended by 1.8 hours.

[0039] In the comparative example, by mixing the oxygenating agent of the conventional thickener, the dissolved oxygen rate is increased by 5%, and the oxygen maintenance time is extended by 0.2 hour.

[0040] Finally, it should be noted that the above examples are only used to illustrate rather than limit the technology of the present invention. Although the present invention has been described in detail with reference to the above examples, those of ordinary skill in the art should understand that: the present invention can still be modified or equivalently exchanged, and any modification or partial replacement without departing from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A preparation method of an environment-friendly alkyl polyglycoside thickener, characterized in that, It includes the following steps: Step 1: Soak carbomer in water for 8 to 10 hours, then heat it up to 20 to 40 °C and stir evenly. Step 2: Add alkyl polyglycoside and stir evenly under the temperature condition of 20 to 40 °C. Step 3: Add triethanolamine aqueous solution for neutralization and stir evenly again. Step 4: Cool down to room temperature to obtain a thickener.

2. The preparation method of an environment-friendly alkyl polyglycoside thickener according to claim 1, characterized in that: The weight parts of water are 73 to 87 parts, the weight parts of carbomer are 2 to 5 parts, the weight parts of triethanolamine aqueous solution are 1 to 2 parts, and the weight parts of alkyl polyglycoside are 10 to 20 parts.

3. The preparation method of an environmentally friendly alkyl polyglycoside thickener according to claim 1, characterized in that: The carbomer includes two types, namely carbomer 941 and carbomer 2020, and the mass ratio of carbomer 941 to carbomer 2020 is 1:1 to 2.

4. The preparation method of an environment-friendly alkyl polyglycoside thickener according to claim 1, characterized in that: The alkyl polyglycoside used is alkyl polyglycoside APG0814 with a solid content of 50%.

5. An environmentally friendly alkyl polyglycoside thickener according to claim 1, characterized in that: The weight concentration of triethanolamine in the triethanolamine aqueous solution is 10% to 30%.

6. An environmentally friendly alkyl polyglycoside thickener according to claim 1, characterized in that: The water described in Step 1 is deionized water.

7. A thickener prepared by the preparation method according to any one of claims 1 to 6.

8. Use of the thickener according to claim 7, characterized in that: The thickener prepared in claim 7 is added to an oxygen increasing agent and mixed evenly to increase the viscosity of the oxygen increasing agent.