Reactive emulsifier as well as preparation method and application thereof

Abstract

The invention discloses a reactive emulsifier as well as a preparation method and application thereof, and relates to the technical field of emulsifiers. 25%-30% of a microbial fermentation product; 10%-15% of a waste liquid crystal material; 35%-40% of acrylic acid; 1%-2% of a cross-linking agent; 0.3%-1% of a pH regulator; 0.1%-0.2% of an antioxidant; the performance of the emulsifying agent is greatly improved through a unique raw material combination and chemical modification technology, the tea polyphenol, the microbial fermentation product and the waste liquid crystal material are introduced, and by means of esterification, double bond introduction and chemical modification, the stability of the emulsifying agent is improved, and the stability of the emulsifying agent is improved. The tea polyphenol and the microbial fermentation product are combined, so that the emulsifier is endowed with more excellent stability and emulsifying performance, the oxidation resistance of the tea polyphenol and the biocompatibility of the microbial fermentation product are combined with the special physicochemical properties of the waste liquid crystal material, and the prepared emulsifier has wide application potential in the fields of coatings, adhesives and ink printing.

Description

Technical Field

[0001] The invention relates to the technical field of emulsifiers, in particular to a reactive emulsifier and a preparation method and application thereof. Background Art

[0002] In modern industrial production, emulsifiers, as an important additive, are widely used in coatings, adhesives, ink printing, textile printing and dyeing, and biomedicine. The main function of emulsifiers is to reduce the surface tension between two immiscible liquids to form a stable and uniform emulsion, thereby improving the performance and stability of the product. With the continuous advancement of science and technology, the market demand for emulsifiers is also increasing, and the requirements for their performance are also increasing. Especially in the context of environmental protection and sustainable development, the development of an efficient, environmentally friendly and renewable emulsifier has become a hot topic in current research.

[0003] Traditional emulsifier preparation technology mainly relies on chemical synthesis methods. Although these methods can prepare emulsifiers with certain properties, they often have problems such as high production costs, severe environmental pollution, and non-renewable raw materials. In addition, traditional emulsifiers may have poor biocompatibility and high toxicity in certain special application fields, such as the biomedicine field, which limits their application scope. Therefore, the development of a new, environmentally friendly, and efficient emulsifier preparation technology has become the key to solving these problems. However, most of the existing emulsifier preparation technologies have the disadvantages of complex processes, single raw materials, and unstable product performance, which makes it difficult to meet the market demand for high-performance emulsifiers.

[0004] Therefore, the development of a reactive emulsifier and its preparation method and application not only solves the problems existing in the traditional emulsifier preparation technology, but also provides new ideas and directions for the development of the emulsifier industry. Summary of the invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a reactive emulsifier and a preparation method and application thereof. The emulsifier is prepared with natural or renewable raw materials as the main components through unique chemical modification and composite reaction technology. The emulsifier has excellent emulsifying performance and stability, and at the same time exhibits good biocompatibility and low toxicity, meeting the market demand for high-performance, environmentally friendly emulsifiers. The preparation method of the present invention has a simple process and a wide source of raw materials, which effectively reduces production costs and environmental pollution.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a reactive emulsifier and a preparation method and application thereof.

[0007] Further, said.

[0008] Furthermore, the said.

[0009] Furthermore, the said.

[0010] Furthermore, the said.

[0011] Furthermore, the said.

[0012] Furthermore, the said.

[0013] Furthermore, the said.

[0014] Furthermore, the said.

[0015] Furthermore, the said.

[0016] Compared with the prior art, the reactive emulsifier and its preparation method and application have the following beneficial effects: 1. The present invention achieves a significant improvement in the performance of the emulsifier through a unique combination of raw materials and chemical modification technology. The present invention introduces multiple raw materials of tea polyphenols, microbial fermentation products and waste liquid crystal materials, and through esterification, introduction of double bonds and chemical modification, the emulsifier is given more excellent stability and emulsification performance. The antioxidant properties of tea polyphenols and the biocompatibility of microbial fermentation products, combined with the special physical and chemical properties of waste liquid crystal materials, make the prepared emulsifier show a wide range of application potential in the fields of coatings, adhesives, and ink printing. This composite and chemical modification technology of multiple raw materials not only improves the comprehensive performance of the emulsifier, but also realizes the recycling of resources, with significant environmental benefits.

[0017] 2. The present invention greatly improves the preparation efficiency and product performance of the emulsifier by adopting microwave-assisted synthesis and photo-promoted performance enhancement technology. Microwave-assisted synthesis technology shortens the reaction time and improves the utilization rate of raw materials through rapid heating and uniform reaction, while photo-promoted performance enhancement treatment utilizes the effects of ultraviolet light and photoinitiators to further stimulate the activity of emulsifier molecules and enhance their emulsification, dispersion and stabilization capabilities. It not only simplifies the production process and reduces energy consumption, but also makes the prepared emulsifier more competitive in the fields of biomedicine and textile printing and dyeing. At the same time, through strict separation, purification, quality inspection and storage processes, the quality and stability of the product are ensured, providing users with a more reliable choice.

[0018] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The present invention is a flow chart of a method for preparing a reactive emulsifier. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] Comparative Example 1 Application scenarios and requirements: This application scenario is the preparation of water-based inks. Water-based inks are required to have good dispersibility, stability and printability, and be able to evenly adhere to and dry into films on printing surfaces of different materials. After analysis, it is planned to add 4kg of reactive emulsifier to every 100kg of water-based ink. It is expected that the prepared water-based ink will have no precipitation or stratification within 3 months of storage. During high-speed printing, the ink transfer performance is good, the printed pattern is clear and colorful, and the drying speed is moderate, meeting the production line's printing speed requirement of 50 meters per minute.

[0023] Raw materials: Raw materials to be emulsified: Select 30kg of water-based acrylic resin as the main oil phase, match it with an appropriate amount of pigment (such as phthalocyanine blue and benzidine yellow, a total of 8kg), 55kg of deionized water as the water phase, and prepare some additives (such as leveling agent, defoaming agent, a total of 3kg).

[0024] Reactive emulsifier: According to the formula of claim 1, accurately weigh 0.6 kg (15%) of tea polyphenols, 1.2 kg (30%) of microbial fermentation products, 0.4 kg (10%) of waste liquid crystal materials, 1.6 kg (40%) of acrylic acid, 0.08 kg (2%) of cross-linking agent, 0.04 kg (1%) of pH regulator, 0.008 kg (0.2%) of antioxidant, and 0.072 kg (0.8%) of thickener.

[0025] Equipment: High-speed disperser for preliminary mixing and dispersion of raw materials; sand mill for fine grinding of pigments; stirred reactor with temperature control system for emulsifier preparation and synthesis of water-based ink; viscometer, gloss meter, adhesion tester.

[0026] Tea polyphenols extraction: Take 8kg of high-quality green tea, grind it and put it into a continuous countercurrent extraction device, use ethanol as the extractant for extraction, concentrate and spray-dry the extract to obtain crude tea polyphenols, and then refine it through a macroporous adsorption resin column to finally obtain 0.6kg of high-purity tea polyphenols.

[0027] Extraction of microbial fermentation products: Inoculate specific bacterial strains into the seed tank and expand the culture with appropriate culture medium. After the bacterial strain concentration reaches the standard, transfer it to a 300L large-scale fermentation tank for fermentation for 60 hours. After the fermentation is completed, separate it with a centrifuge, and the supernatant is adsorbed by macroporous adsorption resin and silica gel column chromatography in turn to obtain 1.2kg of microbial fermentation products.

[0028] Treatment of waste liquid crystal materials: Collect waste liquid crystal screens, disassemble the liquid crystal material part, wash with deionized water in an ultrasonic cleaner for 40 minutes, crush after centrifugal dehydration, screen out powder with suitable particle size, and dry in a drying oven at 60°C for 3 hours to obtain 0.4 kg of waste liquid crystal material powder.

[0029] Esterification of tea polyphenols: add 0.6 kg of tea polyphenols into anhydrous ethanol solution, stir with a stirrer at 150 rpm to prepare a 0.1 mol / L tea polyphenol anhydrous ethanol solution, add 0.06 kg of p-toluenesulfonic acid (10% of the mass of tea polyphenols), and after dissolution, slowly add acrylic acid dropwise, the molar ratio of acrylic acid to tea polyphenols is 2.5:1, the reaction temperature is controlled at 95°C, and the reaction is continued for 4 hours after the addition is completed, and monitored by thin layer chromatography every 45 minutes.

[0030] Double bonds were introduced into microbial fermentation products: 1.2 kg of lipopeptide biosurfactant was dissolved in 9 kg of dichloromethane (dichloromethane is 7.5 times the mass of lipopeptide biosurfactant), 0.5 mol / L sodium hydroxide aqueous solution was slowly added to maintain the pH at 8.8, the agitator was turned on at a speed of 150 rpm, 1.44 kg of allyl bromide (the molar ratio of allyl bromide to lipopeptide biosurfactant was 1.2:1) was added dropwise, the temperature was controlled at 42 °C, the reaction was carried out for 3 hours, and infrared spectroscopy analysis was performed every hour.

[0031] Chemical modification of waste liquid crystal materials: 0.4 kg of waste liquid crystal material powder was mixed with 6 kg of dichloromethane (dichloromethane was 15 times the mass of the liquid crystal material powder) in a reactor, 0.04 kg of silane coupling agent was added (silane coupling agent was 10% of the mass of the liquid crystal material powder), the reactor was sealed and heated to 50 °C for 5 hours, and samples were taken every 2 hours for SEM observation and infrared spectrum analysis.

[0032] The modified tea polyphenols, microbial fermentation products, waste liquid crystal materials and other raw materials are mixed according to the formula, placed in a polytetrafluoroethylene container, the microwave equipment is turned on, the power is set to 450 W, the reaction temperature is controlled to 80°C by circulating water cooling, and the reaction is rapidly cooled after 50 minutes. Benzoin dimethyl ether is used as a photoinitiator, and the addition amount is 3% of the total mass of the raw materials, i.e. 0.12 kg, and the stirring device rotates at a speed of 120 rpm.

[0033] The preliminary product was transferred to a photoreactor, and dichloromethane and a photoinitiator were added. Ethyl acetate was used as an extractant, and continuous extraction was performed at a volume ratio of 1:1.8 between ethyl acetate and the reaction product. The eluent was a mixed solution of petroleum ether-ethyl acetate and chloroform-methanol at a volume ratio of 3:2:1. The stirring device was turned on, the speed was 120 rpm, the UV light intensity was 18 mW / cm², and the reaction was carried out for 3.5 hours.

[0034] The product is extracted with ethyl acetate in a continuous liquid-liquid extraction tower, filtered through a plate and frame filter press, and further separated and purified using a silica gel column chromatography device and an eluent. The product structure and performance are tested using testing equipment, and it is packaged and stored after passing the test.

[0035] Preparation of water-based ink Prepare raw materials and equipment: dissolve 4 kg of the prepared reactive emulsifier in 0.8 kg of isopropanol and stir evenly.

[0036] Adding emulsifier and preliminary mixing: Add the emulsifier solution to 55 kg of deionized water, turn on the agitator at a speed of 300 rpm, slowly add 30 kg of water-based acrylic resin, and at the same time increase the stirring speed to 800 rpm for preliminary mixing.

[0037] Strengthen the emulsification process: control the reaction temperature at 45°C and continue stirring for 2.5 hours to allow the emulsion to react fully.

[0038] Testing and adjustment: During the emulsification process, use a viscometer to test the ink viscosity every 40 minutes. If the viscosity is too high, increase the stirring speed to 1000 rpm and fine-tune the temperature to 43°C; if the viscosity is too low, add a small amount of thickener.

[0039] Subsequent treatment and application: After emulsification, filter the ink with a 100-mesh filter to remove impurities, add 8 kg of pigment, grind it with a sand mill until the pigment particle size meets the requirements, then add 3 kg of additives and stir evenly to obtain a water-based ink product. The water-based ink is used for paper packaging printing and the printing effect is observed. Through this embodiment, a reactive emulsifier suitable for water-based ink is successfully prepared and applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink is tested to have no precipitation or stratification, and the viscosity is stable at 25-30s. In the high-speed printing test, the printed pattern is clear, the color is bright, the gloss reaches 60GU, and the ink has good adhesion to the printed surface, indicating that the reactive emulsifier performs well in the preparation of water-based ink, can effectively improve the various properties of water-based ink, and meet actual production needs.

[0040] In summary, this comparative example is carried out for the preparation of water-based ink. Through rigorous steps, a reactive emulsifier is successfully prepared and used in the production of water-based ink. From the acquisition and initial preparation of raw materials, to the chemical modification of each raw material, and then to the multi-component composite reaction, each step strictly follows the established parameters. In the process of preparing water-based ink, the product is obtained through a series of operations. Finally, the water-based ink shows good storage stability, excellent performance at high-speed printing, and strong adhesion, which fully verifies the effectiveness and practicality of the reactive emulsifier in improving the quality of water-based ink.

[0041] Embodiment 1: Application scenarios and requirements: The application scenario is the preparation of water-based inks. Water-based inks are required to have good dispersibility, stability and printability, and be able to adhere evenly to the printing surfaces of different materials and dry into films. After analysis, it is planned to add 4kg of reactive emulsifier to every 100kg of water-based ink. It is expected that the prepared water-based ink will have no precipitation or stratification within 3 months of storage. During high-speed printing, the ink transfer performance is good, the printed pattern is clear and colorful, and the drying speed is moderate, meeting the production line's printing speed requirement of 50 meters per minute.

[0042] Raw materials: Raw materials to be emulsified: Select 30kg of water-based acrylic resin as the main oil phase, match it with an appropriate amount of pigment (such as phthalocyanine blue and benzidine yellow, a total of 8kg), 55kg of deionized water as the water phase, and prepare some additives (such as leveling agent, defoaming agent, a total of 3kg).

[0043] Reactive emulsifier: According to the formula of claim 1, accurately weigh 0.8 kg (20%) of tea polyphenols, 1.2 kg (30%) of microbial fermentation products, 0.4 kg (10%) of waste liquid crystal materials, 1.6 kg (40%) of acrylic acid, 0.08 kg (2%) of cross-linking agent, 0.04 kg (1%) of pH regulator, 0.008 kg (0.2%) of antioxidant, and 0.072 kg (0.8%) of thickener.

[0044] Equipment: High-speed disperser for preliminary mixing and dispersion of raw materials; sand mill for fine grinding of pigments; stirred reactor with temperature control system for emulsifier preparation and synthesis of water-based ink; viscometer, gloss meter, adhesion tester.

[0045] Preparation of reactive emulsifier: Tea polyphenol extraction: Take an appropriate amount of high-quality green tea, grind it and put it into a continuous countercurrent extraction device, extract it with ethanol as the extractant, concentrate and spray-dry the extract to obtain crude tea polyphenols, and then refine it with a macroporous adsorption resin column to finally obtain 0.8 kg of high-purity tea polyphenols.

[0046] The steps of extraction of microbial fermentation products, treatment of waste liquid crystal materials, esterification of tea polyphenols, introduction of double bonds into microbial fermentation products, chemical modification of waste liquid crystal materials, composite reaction of multiple raw materials, photo-promoted performance improvement treatment, product separation and purification, and quality inspection and storage are the same as those in comparative example 1.

[0047] Preparation of water-based ink: The steps are the same as those in Comparative Example 1.

[0048] Conclusion: Through this embodiment, a reactive emulsifier suitable for water-based ink is prepared and applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink is tested to have no precipitation or stratification, and the viscosity is stable at 28-32s. In the high-speed printing test, the printed pattern is clear, the color is bright, the glossiness reaches 65GU, and the ink has good adhesion to the printed surface.

[0049] Embodiment 2: The application scenarios and requirements, raw materials, equipment, preparation of reactive emulsifiers (except tea polyphenols extraction), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0050] Raw materials: Reactive emulsifier: Accurately weigh 0.7kg of tea polyphenols (accounting for 17.5%), 1.2kg of microbial fermentation products (accounting for 30%), 0.4kg of waste liquid crystal materials (accounting for 10%), 1.6kg of acrylic acid (accounting for 40%), 0.08kg of cross-linking agent (accounting for 2%), 0.04kg of pH adjuster (accounting for 1%), 0.008kg of antioxidant (accounting for 0.2%), and 0.072kg of thickener (accounting for 0.8%).

[0051] Tea polyphenols extraction: Take an appropriate amount of high-quality green tea, grind it and put it into a continuous countercurrent extraction device, use ethanol as the extractant for extraction, concentrate and spray-dry the extract to obtain crude tea polyphenols, and then refine it through a macroporous adsorption resin column to finally obtain 0.7 kg of high-purity tea polyphenols.

[0052] Conclusion: The reactive emulsifier was successfully prepared in this embodiment and used in the production of water-based ink. After storage for 3 months, the prepared water-based ink had no precipitation or stratification, and the viscosity was stable at 26-30s. In the high-speed printing test, the printed pattern was clear, the color was bright, the glossiness reached 62GU, and the ink had good adhesion to the printed surface.

[0053] Embodiment three: The application scenarios and requirements, raw materials, equipment, preparation of reactive emulsifiers (except tea polyphenols extraction), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0054] Raw materials: Reactive emulsifier: Accurately weigh 0.65kg of tea polyphenols (accounting for 16.25%), 1.2kg of microbial fermentation products (accounting for 30%), 0.4kg of waste liquid crystal materials (accounting for 10%), 1.6kg of acrylic acid (accounting for 40%), 0.08kg of cross-linking agent (accounting for 2%), 0.04kg of pH adjuster (accounting for 1%), 0.008kg of antioxidant (accounting for 0.2%), and 0.072kg of thickener (accounting for 0.8%).

[0055] Tea polyphenols extraction: Take an appropriate amount of high-quality green tea, grind it and put it into a continuous countercurrent extraction device, use ethanol as the extractant for extraction, concentrate and spray-dry the extract to obtain crude tea polyphenols, and then refine it through a macroporous adsorption resin column to finally obtain 0.65kg of high-purity tea polyphenols.

[0056] Conclusion: Through this embodiment, the prepared reactive emulsifier is applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink has no precipitation or stratification phenomenon, and the viscosity is stable at 25-29s. During high-speed printing, the printed pattern is clear, the color is bright, the glossiness reaches 61GU, and the ink has good adhesion to the printed surface.

[0057]

[0058] Table 1 According to Table 1 generated from the above-mentioned Comparative Example 1 and Examples 1 to 3, it can be seen that in the preparation of water-based ink, the amount of tea polyphenols in the reactive emulsifier has a significant effect on the ink performance. When the amount of tea polyphenols is in the range of 15% to 20%, the dispersibility, stability and printability of the water-based ink are all excellent. Specifically, when the amount of tea polyphenols is increased to 20%, the glossiness of the ink is the highest, reaching 65GU, and the printed pattern is clear and the color is bright, indicating that tea polyphenols play an important role in improving the surface properties and visual effects of the ink. At the same time, an appropriate amount of tea polyphenols can also enhance the storage stability of the ink, ensuring that there is no precipitation or stratification within 3 months. Therefore, adjusting the amount of tea polyphenols within this range can effectively optimize the comprehensive performance of the water-based ink and meet the needs of high-speed printing and high-quality printing.

[0059] Embodiment 4: Application scenarios and requirements: The application scenario is the preparation of water-based inks. Water-based inks are required to have good dispersibility, stability and printability, and be able to adhere evenly to the printing surfaces of different materials and dry into films. After analysis, it is planned to add 4kg of reactive emulsifier to every 100kg of water-based ink. It is expected that the prepared water-based ink will have no precipitation or stratification within 3 months of storage. During high-speed printing, the ink transfer performance is good, the printed pattern is clear and colorful, and the drying speed is moderate, meeting the production line's printing speed requirement of 50 meters per minute.

[0060] Raw materials: Raw materials to be emulsified: Select 30kg of water-based acrylic resin as the main oil phase, match it with an appropriate amount of pigment (such as phthalocyanine blue and benzidine yellow, a total of 8kg), 55kg of deionized water as the water phase, and prepare some additives (such as leveling agent, defoaming agent, a total of 3kg).

[0061] Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.3kg of microbial fermentation products (32.5%), 0.4kg of waste liquid crystal materials (10%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0062] Equipment: High-speed disperser for preliminary mixing and dispersion of raw materials; sand mill for fine grinding of pigments; stirred reactor with temperature control system for emulsifier preparation and synthesis of water-based ink; testing equipment such as viscometer, gloss meter and adhesion tester.

[0063] Preparation of reactive emulsifier: The steps are the same as those in Comparative Example 1.

[0064] Preparation of water-based ink: The steps are the same as those in Comparative Example 1.

[0065] Conclusion: Through this embodiment, a reactive emulsifier suitable for water-based ink is prepared and applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink is tested to have no precipitation or stratification, and the viscosity is stable at 26-31s. In the high-speed printing test, the printed pattern is clear, the color is more vivid, and the glossiness reaches 63GU. Due to the increase in the amount of microbial fermentation products, the adhesion of the ink on the printing surface is further enhanced.

[0066] Embodiment five: The application scenarios and requirements, raw materials (except the amount of microbial fermentation products), equipment, preparation of reactive emulsifiers (except the extraction time of microbial fermentation products), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0067] Raw materials: Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.1kg of microbial fermentation products (27.5%), 0.4kg of waste liquid crystal materials (10%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0068] Extraction of microbial fermentation products: The steps are the same as those in Comparative Example 1.

[0069] Conclusion: In this example, a reactive emulsifier was successfully prepared and used in the production of water-based ink. After storage for 3 months, the prepared water-based ink had no precipitation or stratification, and the viscosity was stable at 24-29s. In the high-speed printing test, the printed pattern was clear, the color was bright, and the glossiness reached 58GU. Compared with Comparative Example 1, the amount of microbial fermentation product was reduced, and the surface tension of the water-based ink was slightly increased.

[0070] Embodiment six: The application scenarios and requirements, raw materials (except the amount of microbial fermentation products), equipment, preparation of reactive emulsifiers (except the extraction time of microbial fermentation products), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0071] Raw materials: Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.25kg of microbial fermentation products (31.25%), 0.4kg of waste liquid crystal materials (10%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0072] Extraction of microbial fermentation products: The steps are the same as those in Comparative Example 1.

[0073] Conclusion: Through this embodiment, the prepared reactive emulsifier is applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink shows no precipitation or stratification, and the viscosity is stable at 25-30s. During high-speed printing, the printed pattern is clear, the color is bright, and the glossiness reaches 61GU. Due to the change in the amount of microbial fermentation products, the stability of the water-based ink is improved in a high temperature environment.

[0074]

[0075] Table 2 According to Table 2 generated from the above-mentioned Comparative Example 1 and Examples 4 to 6, it can be seen that in the preparation of water-based ink, the amount of reactive emulsifier is crucial to the performance of the ink. The study of Comparative Example 1 and Examples 4 to 6 shows that when the amount of reactive emulsifier is maintained at 4kg / 100kg of ink, the dispersibility, stability and printability of the ink are excellent. Specifically, an appropriate amount of reactive emulsifier can ensure that the ink has no precipitation or stratification within 3 months of storage. At the same time, during high-speed printing, the transfer performance of the ink is good, and the printed pattern is clear and colorful. In addition, by adjusting the amount and fermentation time of the microbial fermentation product in the emulsifier, the gloss, adhesion and high-temperature stability of the ink can be further optimized. This shows that within this dosage range, the reactive emulsifier can not only effectively improve the comprehensive performance of the water-based ink, but also meet the needs of different printing environments through fine-tuning of the formula, and has good practicality and economy.

[0076] Embodiment seven: Application scenarios and requirements: The application scenario is the preparation of water-based inks. Water-based inks are required to have good dispersibility, stability and printability, and be able to adhere evenly to the printing surfaces of different materials and dry into films. After analysis, it is planned to add 4kg of reactive emulsifier to every 100kg of water-based ink. It is expected that the prepared water-based ink will have no precipitation or stratification within 3 months of storage. During high-speed printing, the ink transfer performance is good, the printed pattern is clear and colorful, and the drying speed is moderate, meeting the production line's printing speed requirement of 50 meters per minute.

[0077] Raw materials: Raw materials to be emulsified: Select 30kg of water-based acrylic resin as the main oil phase, match it with an appropriate amount of pigment (such as phthalocyanine blue and benzidine yellow, a total of 8kg), 55kg of deionized water as the water phase, and prepare some additives (such as leveling agent, defoaming agent, a total of 3kg).

[0078] Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.2kg of microbial fermentation products (30%), 0.5kg of waste liquid crystal materials (12.5%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0079] Equipment: High-speed disperser for preliminary mixing and dispersion of raw materials; sand mill for fine grinding of pigments; stirred reactor with temperature control system for emulsifier preparation and synthesis of water-based ink; viscometer, gloss meter, adhesion tester.

[0080] Preparation of reactive emulsifier: All steps are the same as those in comparative example 1, except that in the waste liquid crystal material processing step, 0.5 kg of waste liquid crystal material powder is finally obtained, and the material amounts of disassembly, cleaning, crushing, screening and drying operations are adjusted accordingly.

[0081] Preparation of water-based ink: The steps are the same as those in Comparative Example 1.

[0082] Conclusion: Through this embodiment, a reactive emulsifier suitable for water-based ink is prepared and applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink is tested to have no precipitation or stratification, and the viscosity is stable at 26-31s. In the high-speed printing test, the printed pattern is clearer and sharper, and the color layering is enhanced. This is because the added waste liquid crystal material helps to improve the dispersibility of the ink, making the pigment more evenly distributed in the system, and the glossiness reaches 62GU, which is improved compared with the comparative example 1.

[0083] Embodiment eight: The application scenarios and requirements, raw materials (except the amount of waste liquid crystal materials), equipment, preparation of reactive emulsifiers (except the amount of waste liquid crystal materials processed), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0084] Raw materials: Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.2kg of microbial fermentation products (30%), 0.3kg of waste liquid crystal materials (7.5%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0085] Preparation of reactive emulsifier: The waste liquid crystal material processing operation was adjusted to finally obtain 0.3 kg of waste liquid crystal material powder.

[0086] Conclusion: The reactive emulsifier was successfully prepared in this embodiment and used in the production of water-based ink. After being stored for 3 months, the prepared water-based ink had no precipitation or stratification, and the viscosity was stable at 24-29s. In the high-speed printing test, the printed pattern was clear and the color was bright, but the glossiness dropped to 58GU. Due to the reduction in the amount of waste liquid crystal material, the dispersibility of the ink decreased slightly, resulting in the pigment distribution uniformity not being as good as that of the comparative example 1, which in turn affected the glossiness.

[0087] Embodiment nine: The application scenarios and requirements, raw materials (except the amount of waste liquid crystal materials), equipment, preparation of reactive emulsifiers (except the amount of waste liquid crystal materials processed), and preparation steps of water-based inks are the same as those in Comparative Example 1.

[0088] Raw materials: Reactive emulsifier: Accurately weigh 0.6kg of tea polyphenols (15%), 1.2kg of microbial fermentation products (30%), 0.45kg of waste liquid crystal materials (11.25%), 1.6kg of acrylic acid (40%), 0.08kg of cross-linking agent (2%), 0.04kg of pH adjuster (1%), 0.008kg of antioxidant (0.2%), and 0.072kg of thickener (0.8%).

[0089] Preparation of reactive emulsifier: The waste liquid crystal material processing operation was adjusted to finally obtain 0.45 kg of waste liquid crystal material powder.

[0090] Conclusion: Through this embodiment, the prepared reactive emulsifier is applied to the production of water-based ink. After storage for 3 months, the prepared water-based ink shows no precipitation or stratification, and the viscosity is stable at 25-30s. During high-speed printing, the printed pattern is clear, the color is bright, and the glossiness reaches 61GU. The increase in the amount of waste liquid crystal material improves the stability of the ink in a high temperature and high humidity environment.

[0091]

[0092] Table 3 According to Table 3 generated from the above Comparative Example 1 and Examples 7 to 9, in the preparation of water-based ink, the amount of waste liquid crystal material has a significant optimization effect on the ink performance within a certain range. An appropriate increase in the amount of waste liquid crystal material can significantly improve the dispersibility and glossiness of the ink, and the clarity and color layering of the printed pattern are also enhanced. For example, when the amount of waste liquid crystal material in Example 7 is 12.5%, the glossiness of the ink reaches 62GU, and the printed pattern is clearer and sharper. In addition, the addition of waste liquid crystal material can also improve the stability of the ink in a high temperature and high humidity environment. However, when its amount is reduced to 7.5%, the dispersibility and glossiness of the ink decrease slightly, which shows that the reasonable amount of waste liquid crystal material in water-based ink can not only optimize the ink performance, but also achieve efficient utilization of waste resources, with significant economic and environmental benefits.

[0093] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A reactive emulsifier, characterized in that: Its ingredients and corresponding weight percentages: Tea polyphenols: 15%-20%; Microbial fermentation products: 25%-30%; Waste liquid crystal materials: 10%-15%; Acrylic acid: 35%-40%; Cross-linking agent: 1%-2%; pH adjuster: 0.3%-1%; Antioxidants: 0.1%-0.2%; Thickener: 0.3%-0.5%.

2. A method for preparing a reactive emulsifier, the method being used to prepare the reactive emulsifier according to claim 1, characterized in that: The specific steps of the preparation method are: S100, raw material acquisition and initial processing: For the extraction of tea polyphenols: the tea leaves are crushed, and the crude product is obtained through continuous countercurrent extraction, concentration and spray drying, and then refined with the help of macroporous adsorption resin columns to obtain high-purity tea polyphenols; for the extraction of microbial fermentation products, the strains are expanded and cultured in seed tanks, and after culture, they are transferred to fermentation tanks for fermentation. After the fermentation is completed, lipopeptide biosurfactants are obtained through centrifugation, macroporous adsorption resin adsorption, and silica gel column chromatography steps; For the acquisition of waste liquid crystal materials: disassemble the liquid crystal panel, and prepare it through ultrasonic cleaning, centrifugal dehydration, crushing, screening and drying; S200, chemical modification of raw materials: Esterification of tea polyphenols: add anhydrous ethanol solution to tea polyphenols, stir with a stirrer at a speed of 100-200 rpm to form a 0.1 mol / L tea polyphenol anhydrous ethanol solution, add p-toluenesulfonic acid, wait for it to dissolve, slowly drop acrylic acid, control the temperature at 80-100°C, continue the reaction for 4 hours after the dropwise addition is completed, and keep the stirrer stirring; Double bonds are introduced into microbial fermentation products: lipopeptide biosurfactants are dissolved in dichloromethane, 0.5 mol / L sodium hydroxide aqueous solution is slowly added to maintain the pH at 8-9, the stirrer is turned on at a speed of 100-200 rpm, allyl bromide is added dropwise, the temperature is controlled at 35°C-45°C, and the reaction is carried out for 3 hours; Chemical modification of waste liquid crystal materials: Mix the waste liquid crystal material powder with dichloromethane in a reactor, add a silane coupling agent, seal the reactor and heat it to 50°C for 5 hours; S300, multi-material composite reaction: the modified plant polyphenols, microbial fermentation products, waste liquid crystal materials and other raw materials are mixed according to the formula, placed in a polytetrafluoroethylene container, the microwave equipment is turned on, the power is set to 400-500W, the reaction temperature is controlled to 80℃ through circulating water cooling, and the reaction is carried out for 40-60 minutes before rapid cooling; S400, photo-promoted performance improvement treatment: transfer the preliminary product to a photoreactor, add dichloromethane and a photoinitiator, turn on a stirring device and a UV lamp, and react for 3-4 hours; S500, product separation, purification, quality inspection and storage: The product is extracted with an extractant in a continuous liquid-liquid extraction tower, filtered through a plate and frame filter press, and further separated and purified using a silica gel column chromatography device and an eluent. The product structure and performance are tested using testing equipment, and if they meet the standards, they are packaged and stored.

3. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S200, the molar ratio of acrylic acid to tea polyphenol in the esterification of the chemically modified tea polyphenol is 1.5-3:1; and the amount of toluenesulfonic acid added is 10% of the mass of the tea polyphenol.

4. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S200, the amount of dichloromethane added into the double bonds of the microbial fermentation product chemically modified by the raw material is 5-10 times the mass of the lipopeptide biosurfactant; the molar ratio of allyl bromide to the lipopeptide biosurfactant is 1.2:

1.

5. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S200, in the chemical modification of the waste liquid crystal material, the amount of dichloromethane added is 10-20 times the mass of the liquid crystal material powder; and the amount of disilane coupling agent added is 10% of the mass of the liquid crystal material powder.

6. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S300, the photoinitiator in the composite reaction of multiple raw materials is dimethyl benzoate, and the added amount is 3% of the total mass of the raw materials.

7. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S300, the rotation speed of the stirring device in the composite reaction of multiple raw materials is 100-150 rpm, and the illumination intensity of the ultraviolet lamp is 15-20 mW / cm².

8. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S400, the extractant in the light-promoted performance improvement treatment is ethyl acetate, and continuous extraction is performed according to a volume ratio of ethyl acetate to reaction product of 1:1-1:

2.

9. The method for preparing a reactive emulsifier according to claim 2, characterized in that: In the S400, the eluent in the light-promoted performance improvement treatment is a mixed solution of petroleum ether-ethyl acetate and chloroform-methanol, and the volume ratio of the three is 3:2:

1.

10. An application of a reactive emulsifier, characterized in that: The specific steps of applying the emulsifier are: Determine application scenarios and requirements: clarify application scenarios, determine the amount of emulsifier and expected emulsification effect; Prepare raw materials and equipment: prepare raw materials to be emulsified, emulsifiers and suitable mixing equipment; Prepare raw materials and equipment: dissolve the emulsifier in a small amount of compatible solvent and stir evenly; Adding emulsifier and preliminary mixing: Add the emulsifier to the water phase and stir, slowly add the oil phase and increase the stirring speed for preliminary mixing; Strengthen the emulsification process: control the temperature as required and stir continuously; Testing and adjustment: Regularly test the emulsion and adjust the stirring, temperature or add auxiliary agents according to the results; Subsequent processing and application: Filter the emulsion or adjust its concentration for use in product production.

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