Efficient foam scrubbing agent capable of improving foam film capacity and preparation method of efficient foam scrubbing agent

Abstract

The invention relates to an efficient foam scrubbing agent capable of improving the capacity of a foam film and a preparation method of the efficient foam scrubbing agent capable of improving the capacity of the foam film, and the efficient foam scrubbing agent capable of improving the capacity of the foam film comprises the following components in percentage by mass: 5-10% of an ampholytic surfactant; 8 to 15% of an ammonium oxide surfactant; 1 to 5% of a nonionic surfactant; 0.5-2% of sodium chloride; 0.5 to 2% of sodium alpha-olefin sulfonate; 0.2% to 1% of a PEG-240 / HDI copolymer bis-decyl tetradecyl alcohol polyether-20 ether, and the balance of water; 0.2-1% of an eggshell membrane extract; 0.05% to 0.1% of a preservative; and the balance of deionized water. The foam scrubbing agent prepared by mixing the eggshell membrane extract, the PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether and various surfactants has the advantages of large foam size, slow defoaming, high foam toughness and large liquid carrying capacity.

Description

Technical Field

[0001] The invention relates to the technical field of foaming agents, and in particular to a high-efficiency foaming agent capable of improving the foam film capacity and a preparation method thereof. Background Art

[0002] The essence of foam drainage and gas production belongs to chemical drainage, which is a technology developed by utilizing the foaming property of surfactants. With the annual development of gas reservoirs, more than 70% of gas wells in my country currently need artificial drainage to achieve effective development. Foam drainage and gas production technology has obvious advantages and is widely used in major gas fields.

[0003] The foam size, foam toughness, and liquid carrying capacity of the foam drainage agent affect the foam drainage and gas recovery. If the foam toughness is low, the foaming power will be weak, the foam itself will not last long, and the foam will be defoamed too quickly, affecting the efficiency of foam drainage and gas recovery. If the foam is too small, the liquid carrying capacity index of the foam drainage agent will be too low, which will also affect the efficiency of natural gas recovery.

[0004] The foam size, foam toughness, liquid carrying capacity, etc. of the existing foaming agents need to be improved. Summary of the invention

[0005] In order to solve at least part of the above problems in the prior art, the present invention provides a high-efficiency foaming agent capable of improving the foam film capacity, comprising the following components in percentage by mass: Amphoteric surfactant 5-10% Ammonium oxide surfactant 8-15% Nonionic surfactant 1-5% Sodium chloride 0.5-2% Sodium α-olefin sulfonate 0.5-2% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.2-1% Eggshell membrane extract 0.2-1% Preservatives 0.05%-0.1% Make up 100% of deionized water.

[0006] Further, the following components are included in mass percentage: Amphoteric surfactant 6% Ammonium oxide surfactant 10% Nonionic surfactant 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.5% Eggshell membrane extract 0.5% Make up 100% of deionized water.

[0007] Furthermore, the total weight of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and eggshell membrane extract is 1%-2% of the foaming agent system.

[0008] Furthermore, the mass ratio of the PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to the eggshell membrane extract is 0.2:5.

[0009] Furthermore, the mass ratio of the PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and the eggshell membrane extract is 1:1.

[0010] Furthermore, the total weight of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and eggshell membrane extract is 1% of the foaming agent system.

[0011] Furthermore, it also includes at least one of the following technical features: The amphoteric surfactant is selected from one of cocamidopropyl betaine and lauramidopropyl betaine; The ammonium oxide surfactant is selected from one of cocamidopropylamine oxide and laurylamidepropylamine oxide; The nonionic surfactant is selected from one of decyl glucoside and alkyl alcohol amide; The preservatives include methylisothiazolinone and / or benzisothiazolinone.

[0012] The present invention also provides a method for preparing a high-efficiency foaming agent capable of improving the foam film capacity, comprising the following steps: S1) adding an ammonium oxide surfactant to part of the deionized water in the formula and stirring evenly to form a first mixed solution; S2) adding PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula to pre-dissolve, stirring using a disperser, and then adding to the first mixed solution, stirring evenly to form a second mixed solution; S3) adding the eggshell membrane extract to a portion of the deionized water in the formula to pre-dissolve, stirring, and then adding the eggshell membrane extract to the second mixed solution, stirring evenly, to form a third mixed solution; S4) adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution; S5) adding an amphoteric surfactant and a nonionic surfactant to the fourth mixed solution and stirring to form a fifth mixed solution; S6) adding a preservative into the fifth mixed solution and stirring the mixture evenly to obtain a foaming agent.

[0013] Further, the pre-dissolution temperature of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether is 50-59°C.

[0014] The present invention has at least the following beneficial effects: the foaming agent prepared by mixing eggshell membrane extract, PEG-240 / HDI copolymer bis-decyltetradecanol polyether-20 ether and various surfactants has strong foaming power, and the foam features are large size, high foam stability, high foam toughness and large liquid carrying capacity. DETAILED DESCRIPTION

[0015] Unless otherwise indicated, implied from the context, or customary in the prior art, all parts and percentages in this application are based on weight, and the tests and characterization methods used are synchronized with the filing date of this application. Where applicable, the contents of any patent, patent application or disclosure involved in this application are fully incorporated herein by reference, and their equivalent patent families are also introduced as references, especially the definitions of synthesis techniques, products and processing designs, dispersants or adhesives in this field disclosed in these documents. If the definition of a specific term disclosed in the prior art is inconsistent with any definition provided in this application, the definition of the term provided in this application shall prevail.

[0016] Numerical ranges in this application are approximate values, so unless otherwise specified, they may include numerical values ​​outside the range. Numerical ranges include all numerical values ​​from the lower limit to the upper limit increased by 1 unit, provided that there is an interval of at least 2 units between any lower value and any higher value. For example, if the recorded component, physical or other properties (such as molecular weight, etc.) are 100 to 1000, it means that all single values ​​are clearly listed, such as 100, 101, 102, etc., and all sub-ranges, such as 100 to 166, 155 to 170, 198 to 200, etc. For a range containing a numerical value less than 1 or containing a fraction greater than 1 (such as 1.1, 1.5, etc.), 1 unit is appropriately regarded as 0.0001, 0.001, 0.01 or 0.1. For a range containing a single digit less than 10 (such as 1 to 5), 1 unit is usually regarded as 0.1. These are only specific examples of what is intended to be expressed, and all possible combinations of values ​​between the lowest and highest values ​​listed are considered to be clearly recorded in this application. It should also be noted that the terms "first", "second", etc. in this article do not limit the order of precedence, but are only used to distinguish substances with different structures.

[0017] When used with respect to chemical compounds, unless expressly specified otherwise, the singular includes all isomeric forms and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively). In addition, nouns using "a," "an," or "the" also include their plural forms unless expressly specified otherwise.

[0018] The terms "comprising", "including", "having" and their derivatives do not exclude the presence of any other components, steps or processes, and are irrelevant to whether these other components, steps or processes are disclosed in this application. To eliminate any doubt, unless explicitly stated, all compositions using the terms "comprising", "including", or "having" in this application may include any additional additives, adjuvants or compounds. On the contrary, except for those necessary for operating performance, the term "essentially consisting of..." excludes any other components, steps or processes from the scope of any description of the term below. The term "consisting of..." does not include any components, steps or processes that are not specifically described or listed. Unless explicitly stated, the term "or" refers to the listed individual members or any combination thereof.

[0019] The embodiments of the present invention will be described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0020] The present invention provides a high-efficiency foaming agent capable of improving the foam film capacity, comprising the following components in percentage by mass: Amphoteric surfactant 5-10% Ammonium oxide surfactant 8-15% Nonionic surfactant 1-5% Sodium chloride 0.5-2% Sodium α-olefin sulfonate 0.5-2% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.2-1.5% Eggshell membrane extract 0.2-1.5% Preservatives 0.05%-0.1% Make up 100% of deionized water.

[0021] The formula contains eggshell membrane extract, which coexists with surfactants. Shell membrane is a fibrous membrane wrapped outside the protein. It is an organic fiber network composed of tough keratin. PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether is in the form of flower-like micelles. The two are interwoven with the rope-like structure of the surfactant to form a three-dimensional grid structure and coexist in water. Eggshell membrane extract, PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether and surfactant form a multi-dimensional triangular three-dimensional form that interweaves in the system, which can form rich and highly tough foam and improve the rheological properties of the foaming agent under low temperature conditions.

[0022] Example 1 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 1% Eggshell membrane extract 0.2% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0023] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0024] Step 2, add PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula for pre-dissolution, stir using a dispersing mixer, and then add to the first mixed solution, stir evenly to form a second mixed solution. The pre-dissolution is performed at 50-59°C.

[0025] Step 3, add the eggshell membrane extract (purchased powder) to part of the deionized water in the formula to pre-dissolve, stir, and then add to the second mixed solution, stir evenly, to form a third mixed solution. The eggshell membrane extract is selected from chicken egg shell membrane powder.

[0026] Step 4: adding sodium chloride and sodium α-olefin sulfonate into the third mixed solution and stirring to form a fourth mixed solution.

[0027] Step 5, adding cocamidopropyl betaine and decyl glucoside into the fourth mixed solution and stirring to form a fifth mixed solution.

[0028] Step 6, adding methylisothiazolinone and benzisothiazolinone into the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0029] The amount of water used in steps 1-3 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0030] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0031] During the preparation process, the cocamidopropylamine oxide with the largest content is first dissolved in water to increase the solubility and facilitate the mixing and dissolution of the raw materials added later. The other two surfactants are added in the second-to-last order to reduce the foam generated during the stirring in steps 3-5 and avoid a large amount of foam generated during the whole stirring process.

[0032] Example 2 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.5% Eggshell membrane extract 0.5% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0033] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0034] Step 2, add PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula for pre-dissolution, stir using a dispersing mixer, and then add to the first mixed solution, stir evenly to form a second mixed solution. The pre-dissolution is performed at 50-59°C.

[0035] Step 3, add the eggshell membrane extract (purchased powder) to part of the deionized water in the formula to pre-dissolve, stir, and then add to the second mixed solution, stir evenly, to form a third mixed solution. The eggshell membrane extract is selected from chicken egg shell membrane powder.

[0036] Step 4: adding sodium chloride and sodium α-olefin sulfonate into the third mixed solution and stirring to form a fourth mixed solution.

[0037] Step 5, adding cocamidopropyl betaine and decyl glucoside into the fourth mixed solution and stirring to form a fifth mixed solution.

[0038] Step 6, adding methylisothiazolinone and benzisothiazolinone into the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0039] The amount of water used in steps 1-3 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0040] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0041] Example 3 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.2% Eggshell membrane extract 1% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0042] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0043] Step 2, add PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula for pre-dissolution, stir using a dispersing mixer, and then add to the first mixed solution, stir evenly to form a second mixed solution. The pre-dissolution is performed at 50-59°C.

[0044] Step 3, add the eggshell membrane extract (purchased powder) to part of the deionized water in the formula to pre-dissolve, stir, and then add to the second mixed solution, stir evenly, to form a third mixed solution. The eggshell membrane extract is selected from chicken egg shell membrane powder.

[0045] Step 4: adding sodium chloride and sodium α-olefin sulfonate into the third mixed solution and stirring to form a fourth mixed solution.

[0046] Step 5, adding cocamidopropyl betaine and decyl glucoside into the fourth mixed solution and stirring to form a fifth mixed solution.

[0047] Step 6, adding methylisothiazolinone and benzisothiazolinone into the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0048] The amount of water used in steps 1-3 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0049] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0050] Example 4 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 1.5% Eggshell membrane extract 1.5% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0051] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0052] Step 2, add PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula for pre-dissolution, stir using a dispersing mixer, and then add to the first mixed solution, stir evenly to form a second mixed solution. The pre-dissolution is performed at 50-59°C.

[0053] Step 3, add the eggshell membrane extract (purchased powder) to part of the deionized water in the formula to pre-dissolve, stir, and then add to the second mixed solution, stir evenly, to form a third mixed solution. The eggshell membrane extract is selected from chicken egg shell membrane powder.

[0054] Step 4: adding sodium chloride and sodium α-olefin sulfonate into the third mixed solution and stirring to form a fourth mixed solution.

[0055] Step 5, adding cocamidopropyl betaine and decyl glucoside into the fourth mixed solution and stirring to form a fifth mixed solution.

[0056] Step 6, adding methylisothiazolinone and benzisothiazolinone into the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0057] The amount of water used in steps 1-3 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0058] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0059] Example 5 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% Eggshell membrane extract 1% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0060] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0061] Step 2, add the eggshell membrane extract (purchased powder) to a portion of the deionized water in the formula to pre-dissolve, stir, and then add to the second mixed solution, stir evenly, to form a third mixed solution. The eggshell membrane extract is selected from chicken egg shell membrane powder.

[0062] Step 3, adding sodium chloride and sodium α-olefin sulfonate into the third mixed solution, stirring, to form a fourth mixed solution.

[0063] Step 4, adding cocamidopropyl betaine and decyl glucoside into the fourth mixed solution and stirring to form a fifth mixed solution.

[0064] Step 5, adding methylisothiazolinone and benzisothiazolinone into the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0065] The amount of water used in step 1-2 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in step 1-2 is the amount of water in the formula.

[0066] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0067] Comparative Example 1 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0068] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to the deionized water in the formula, stir evenly to form a first mixed solution.

[0069] Step 2: adding sodium chloride and sodium α-olefin sulfonate into the first mixed solution and stirring to form a second mixed solution.

[0070] Step 3, adding cocamidopropyl betaine and decyl glucoside into the second mixed solution and stirring to form a third mixed solution.

[0071] Step 4, adding methylisothiazolinone and benzisothiazolinone into the third mixed solution, stirring evenly, to obtain a foaming agent.

[0072] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0073] Comparative Example 2 A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in percentage by mass: Cocamidopropyl Betaine 6% Cocamidopropylamine oxide 10% Decyl Glucoside 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 1% Methylisothiazolinone 0.025% Benzisothiazolinone 0.025% Make up 100% of deionized water.

[0074] The preparation process of high-efficiency foaming agent is as follows: Step 1, add cocamidopropylamine oxide to part of the deionized water in the formula, stir evenly, and form a first mixed solution.

[0075] Step 2, add PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula for pre-dissolution, stir using a dispersing mixer, and then add to the first mixed solution, stir evenly to form a second mixed solution. The pre-dissolution is performed at 50-59°C.

[0076] Step 3, adding sodium chloride and sodium α-olefin sulfonate into the second mixed solution, stirring to form a third mixed solution.

[0077] Step 4, adding cocamidopropyl betaine and decyl glucoside into the third mixed solution and stirring to form a fourth mixed solution.

[0078] Step 5, adding methylisothiazolinone and benzisothiazolinone into the fourth mixed solution, stirring evenly, to obtain a foaming agent.

[0079] The amount of water used in step 1-2 is at least an amount capable of completely dissolving the raw materials, and the total amount of water used in step 1-2 is the amount of water in the formula.

[0080] During the preparation process, when the liquid is transparent and there is no colloid in the visual inspection, it means that the raw materials are evenly dispersed.

[0081] Effect Example The foaming agents of Examples 1-5 and Comparative Examples 1-2 were subjected to performance tests in the following aspects, including foam thickness test, foam height test, foaming agent liquid carrying capacity test, thermal aging foaming power test, and eggshell membrane thermal stability test.

[0082] Method for testing foam thickness: Take the same amount of the foaming agent of Examples 1-5 and Comparative Examples 1-2, dilute them 3 times with water, put them into a pump device, press three times, and observe the thickness of the foam film using a microscope at 2x magnification. The test results are shown in Table 1.

[0083] Foam height detection method: Take the same amount of the foaming agent of Examples 1-5 and Comparative Examples 1-2 and add water to prepare a solution, then keep the solution at 65°C for 12 hours, and test it at 65°C using the ROSS-Miles method using a Roche foam meter. The test results are shown in Table 2.

[0084] Heat aging foaming power test: The same amount of foaming agents of Examples 1-5 and Comparative Examples 1-2 were placed in a constant temperature water bath at 100°C for 24 hours, and the foam height was tested and the reverse heat aging foaming power test was performed. The results are shown in Table 3.

[0085] Thermal stability test of eggshell membrane in foaming agent: To investigate the compatibility of eggshell membrane in foaming agent in practical application, take equal amounts of sample foaming agents of Examples 1-5, use gas well formation water, and configure into aqueous solutions with mass concentrations of 0.1%, 0.3%, 0.5%, 0.7%, and 0.9%, and then divide each concentration of aqueous solution into 5 parts, respectively placed at -15°C, 0°C, sunshine, 25°C, and 48°C for observation for 15 days, and restore room temperature and 0°C standard sample observation without obvious changes. As a result, all aqueous solutions are clear and transparent, without precipitation and stratification, indicating that the foaming agent configured by eggshell membrane in this application has excellent stability and good compatibility among surfactants.

[0086] Table 1 Foam thickness test results of Examples 1-5 and Comparative Examples 1-3 Thickness reduction ratio % = (initial thickness - thickness at 120S) / initial height The thickness of the foam produced by the foaming agents of Examples 1-5 is thicker than that of the foam produced by the foaming agent of Comparative Example 1, and the foam thickness decreases more slowly and the foam is more stable, indicating that the addition of eggshell membrane extract or eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether can optimize the performance of the foaming agent.

[0087] Compared with Comparative Example 2, the foaming agent in Example 1 with the addition of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether has a thicker foam thickness, a slower rate of decrease in foam thickness, and a more stable foam than the foaming agent with only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0088] The foam thickness of the foaming agent of Example 3 is greater than that of the foaming agent of Example 5, and the foam stability of the foaming agent of Example 3 is better, indicating that the foam thickness of the foaming agent with the simultaneous addition of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether is thicker than that of the foaming agent with only the addition of eggshell membrane extract, the speed of foam thickness reduction is slower, and the foam is more stable.

[0089] Compared with Example 5 and Comparative Example 2, the foam thickness of the foaming agent of Example 5 is greater than that of Comparative Example 2, and the foam stability is also better than that of the foaming agent of Comparative Example 2, indicating that adding eggshell membrane extract to the foaming agent is better than adding PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0090] The foaming agent of Example 2 has the thickest foam, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether and eggshell membrane extract in the two is 1:1, the total addition amount of Example 2 is 1%, and the total addition amount of Example 4 is 2%, but the performance is worse than that of the foaming agent of Example 1, and the large addition amount increases the cost, and the viscosity is also large, which increases the difficulty. The optimal ratio of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether is 1:1, and the optimal total addition amount of the two is 1%.

[0091] Table 2 Foam height test results of Examples 1-5 and Comparative Examples 1-3 Height reduction ratio % = (initial height - height at 5 minutes) / initial height The height of the foam produced by the foaming agents of Examples 1-5 is higher than that of the foam produced by the foaming agent of Comparative Example 1, and the rate at which the foam height decreases is slower, and the foam is more stable, indicating that the addition of eggshell membrane extract or eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether can optimize the performance of the foaming agent.

[0092] Compared with Comparative Example 2, the foaming agent in Example 1 with the addition of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether has a higher foam height, a slower rate of decrease in foam height, and a more stable foam than the foaming agent with only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0093] The foam height of the foaming agent of Example 3 is greater than the foam height of the foaming agent of Example 5, and the foam stability of the foaming agent of Example 3 is better, indicating that the foam height of the foaming agent with the simultaneous addition of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether is higher than that of the foaming agent with only eggshell membrane extract added, the speed of foam height reduction is slower, and the foam is more stable.

[0094] Compared with Example 5 and Comparative Example 2, the foam height of the foaming agent of Example 5 is greater than that of Comparative Example 2, and the foam stability is also better than that of the foaming agent of Comparative Example 2, indicating that adding eggshell membrane extract to the foaming agent has a better optimization effect than adding PEG-240 / HDI copolymer di-decyltetradecyl alcohol polyether-20 ether.

[0095] The foaming agent of Example 2 has the highest foam height, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether to eggshell membrane extract is 1:1, the total addition amount of Example 2 is 1%, and the total addition amount of Example 4 is 2%, but the performance is worse than that of the foaming agent of Example 1, and the large addition amount increases the cost, and the viscosity is also large, which will cause trouble in use. The optimal ratio of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyl tetradecanol polyether-20 ether is 1:1, and the optimal total addition amount of the two is 1%.

[0096] Table 3 Thermal aging foaming test results of Examples 1-5 and Comparative Examples 1-3 Height reduction ratio % = (initial height - height at 5 minutes) / initial height From the results of the heat aging foaming test in Table 3, it can be seen that the foam height of the foaming agent with the eggshell membrane extract added is still higher than that of the foaming agent without the eggshell membrane extract, and the foam stability is better. The foaming agents of Examples 1-5 with the eggshell membrane extract added were treated at 100°C for 24 hours, and their foam height was only slightly reduced compared with the results in Table 2, so the eggshell membrane extract has good thermal stability.

[0097] Table 4 Liquid carrying capacity test results of Examples 1-5 and Comparative Examples 1-2 The liquid carrying capacity of the foaming agents of Examples 1-5 is greater than that of the foaming agent of Comparative Example 1, indicating that the addition of eggshell membrane extract or eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether can optimize the performance of the foaming agent.

[0098] Compared with Comparative Example 2, the foaming agent added with eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether has a larger liquid carrying capacity and better foaming agent performance than the foaming agent with only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0099] The liquid carrying capacity of the foaming agent of Example 3 is greater than that of the foaming agent of Example 5, indicating that the foaming agent with the simultaneous addition of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether has a greater liquid carrying capacity than the foaming agent with only the addition of eggshell membrane extract, and the foaming agent has better performance.

[0100] The liquid carrying capacity of the foaming agent of Example 5 is greater than that of the foaming agent of Comparative Example 2, indicating that adding eggshell membrane extract to the foaming agent has a better optimization effect than adding PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0101] The foaming agent of Example 2 has the largest liquid carrying capacity, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyltetradecanol polyether-20 ether and eggshell membrane extract in the two is 1:1, the total addition amount of Example 2 is 1%, and the total addition amount of Example 4 is 2%, but the performance is worse than that of the foaming agent of Example 1, and the large addition amount increases the cost, and the viscosity is also large, which will cause trouble in use. The optimal ratio of eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecanol polyether-20 ether is 1:1, and the optimal total addition amount of the two is 1%.

[0102] The eggshell membrane extract used in the present invention belongs to the category of biological membrane, is a renewable resource that can be recycled, has excellent degradability, is pollution-free, and is an environmentally friendly material.

[0103] Although some embodiments of the present invention have been described in this application document, it will be appreciated by those skilled in the art that these embodiments are merely shown as examples. Those skilled in the art may conceive of numerous variations, alternatives, and improvements under the teachings of the present invention without departing from the scope of the present invention. The appended claims are intended to define the scope of the present invention and to cover methods and structures within the scope of these claims themselves and their equivalents.

Claims

1. A high-efficiency foaming agent capable of improving the foam film capacity, characterized in that: The following components are included in mass percentage: Amphoteric surfactant 5-10% Ammonium oxide surfactant 8-15% Nonionic surfactant 1-5% Sodium chloride 0.5-2% Sodium α-olefin sulfonate 0.5-2% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.2-1% Eggshell membrane extract 0.2-1% Preservatives 0.05%-0.1% Make up 100% of deionized water.

2. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 1, characterized in that: The following components are included in mass percentage: Amphoteric surfactant 6% Ammonium oxide surfactant 10% Nonionic surfactant 1.5% Sodium chloride 0.2% Sodium α-olefin sulfonate 0.5% PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether 0.5% Eggshell membrane extract 0.5% Make up 100% of deionized water.

3. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 1, characterized in that: The total weight of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and eggshell membrane extract is 1%-2% of the foaming agent system.

4. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 1, characterized in that: The mass ratio of the PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to the eggshell membrane extract is 0.2:

5.

5. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 4, characterized in that: The mass ratio of the PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and the eggshell membrane extract is 1:

1.

6. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 1, characterized in that: The total weight of PEG-240 / HDI copolymer bis-decyltetradecyl polyether-20 ether and eggshell membrane extract is 1% of the foaming agent system.

7. The high-efficiency foaming agent capable of improving the foam film capacity according to claim 1, characterized in that: It also includes at least one of the following technical features: The amphoteric surfactant is selected from one of cocamidopropyl betaine and lauramidopropyl betaine; The ammonium oxide surfactant is selected from one of cocamidopropylamine oxide and laurylamidepropylamine oxide; The nonionic surfactant is selected from one of decyl glucoside and alkyl alcohol amide; The preservatives include methylisothiazolinone and / or benzisothiazolinone.

8. A method for preparing a high-efficiency foaming agent capable of improving the foam film capacity as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1) adding an ammonium oxide surfactant to part of the deionized water in the formula and stirring evenly to form a first mixed solution; S2) adding PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to a portion of the deionized water in the formula to pre-dissolve, stirring using a disperser, and then adding to the first mixed solution, stirring evenly to form a second mixed solution; S3) adding the eggshell membrane extract to a portion of the deionized water in the formula to pre-dissolve, stirring, and then adding the eggshell membrane extract to the second mixed solution, stirring evenly, to form a third mixed solution; S4) adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution; S5) adding an amphoteric surfactant and a nonionic surfactant to the fourth mixed solution and stirring to form a fifth mixed solution; S6) adding a preservative into the fifth mixed solution and stirring the mixture evenly to obtain a foaming agent.

9. The preparation method according to claim 8, characterized in that: The pre-dissolution temperature of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether is 50-59°C.

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