A high-efficiency foaming agent capable of improving foam film capacity and preparation method thereof

Abstract

The present invention relates to a high-efficiency foaming agent capable of improving foam film performance and a preparation method thereof. The high-efficiency foaming agent capable of improving foam film performance comprises the following components in percentage by weight: an amphoteric surfactant (5-10%); an ammonium oxide surfactant (8-15%); a nonionic surfactant (1-5%); sodium chloride (0.5-2%); sodium α-olefin sulfonate (0.5-2%); a PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20 ether) (0.2-1%); an eggshell membrane extract (0.2-1%); a preservative (0.05%-0.1%); and deionized water (100%). The foaming agent prepared by mixing the eggshell membrane extract, the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20 ether) and various surfactants has the advantages of large foam size, slow defoaming, high foam toughness, and high liquid carrying capacity.

Description

Technical Field

[0001] The present 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] Foam drainage and gas recovery is essentially a chemical drainage technique developed by leveraging the foaming properties of surfactants. With the continued development of gas reservoirs, over 70% of gas wells in my country currently require artificial drainage to achieve profitable development. Foam drainage and gas recovery technology offers significant advantages and is widely used in major gas fields.

[0003] The foam size, toughness, and liquid carrying capacity of the foaming agent affect the effectiveness of foam drainage and gas recovery. Low foam toughness results in weak foaming power, a poorly maintained foam form, and rapid defoaming, affecting the efficiency of foam drainage and gas recovery. If the foam is too small, the liquid carrying capacity of the foaming agent is too low, also affecting natural gas recovery efficiency.

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

[0005] In order to solve at least some 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 the following mass percentages:

[0006] Amphoteric surfactant 5-10%

[0007] Ammonium oxide surfactant 8-15%

[0008] Nonionic surfactant 1-5%

[0009] Sodium chloride 0.5-2%

[0010] Sodium α-olefin sulfonate 0.5-2%

[0011] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 0.2-1%

[0012] Eggshell membrane extract 0.2-1%

[0013] Preservatives 0.05%-0.1%

[0014] Make up 100% of deionized water.

[0015] Furthermore, the following components are included in percentage by mass:

[0016] Amphoteric surfactant 6%

[0017] Ammonium oxide surfactant 10%

[0018] Nonionic surfactant 1.5%

[0019] Sodium chloride 0.2%

[0020] Sodium α-olefin sulfonate 0.5%

[0021] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 0.5%

[0022] Eggshell membrane extract 0.5%

[0023] Make up 100% of deionized water.

[0024] Furthermore, the total mass of PEG-240 / HDI copolymer bis-decyltetradecyl polyether-20 ether and eggshell membrane extract is 1%-2% of the foaming agent system.

[0025] 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.

[0026] Furthermore, the mass ratio of the PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and the eggshell membrane extract is 1:1.

[0027] Furthermore, the total mass of PEG-240 / HDI copolymer bis-decyltetradecyl polyether-20 ether and eggshell membrane extract is 1% of the foaming agent system.

[0028] Furthermore, it also includes at least one of the following technical features:

[0029] The amphoteric surfactant is selected from one of cocamidopropyl betaine and lauramidopropyl betaine;

[0030] The ammonium oxide surfactant is selected from one of cocamidopropylamine oxide and laurylamidepropylamine oxide;

[0031] The nonionic surfactant is selected from one of decyl glucoside and alkyl alcohol amide;

[0032] The preservatives include methylisothiazolinone and / or benzisothiazolinone.

[0033] 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:

[0034] S1) adding an ammonium oxide surfactant to a portion of the deionized water in the formulation and stirring uniformly to form a first mixed solution;

[0035] S2) pre-dissolving PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether in a portion of the deionized water in the formulation, stirring using a dispersing mixer, and then adding the mixture to the first mixed solution and stirring evenly to form a second mixed solution;

[0036] S3) adding the eggshell membrane extract to a portion of the deionized water in the formula to pre-dissolve it, stirring, and then adding it to the second mixed solution and stirring evenly to form a third mixed solution;

[0037] S4) adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution;

[0038] S5) adding an amphoteric surfactant and a nonionic surfactant to the fourth mixed solution and stirring to form a fifth mixed solution;

[0039] S6) adding a preservative to the fifth mixed solution and stirring the mixture to obtain a foaming agent.

[0040] Furthermore, the pre-dissolution temperature of PEG-240 / HDI copolymer bis-decyltetradecylpolyether-20 ether is 50-59°C.

[0041] The present invention has at least the following beneficial effects: the foaming agent prepared by mixing eggshell membrane extract, PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether and various surfactants has strong foaming power, and the foam characteristics are outstanding in large size, high foam stability, high foam toughness and large liquid carrying capacity. DETAILED DESCRIPTION

[0042] Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages in this application are based on weight, and the test and characterization methods used are all current as of the filing date of this application. Where applicable, the contents of any patent, patent application, or publication referred to in this application are incorporated herein by reference in their entirety, and their equivalent patent families are also incorporated by reference, especially the definitions of synthetic techniques, products and processing designs, dispersants, or adhesives disclosed in these documents in the art. 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.

[0043] Numerical ranges in this application are approximate values, so unless otherwise stated, they may include values outside the range. Numerical ranges include all 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 individual values are clearly listed, such as 100, 101, 102, etc., and all subranges, such as 100 to 166, 155 to 170, 198 to 200, etc. For ranges containing values less than 1 or containing fractions 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 ranges containing single digits less than 10 (such as 1 to 5), 1 unit is usually regarded as 0.1. These are merely specific examples of what is intended, and all possible combinations of values between the lowest and highest values recited are considered to be expressly stated in this application. It should also be noted that the terms "first," "second," etc. herein do not limit the order of precedence, but are only used to distinguish substances of different structures.

[0044] When used with respect to chemical compounds, unless expressly stated otherwise, the singular includes all isomeric forms, and vice versa (e.g., "hexane" includes all isomers of hexane, individually and collectively). In addition, nouns using "a," "an," or "the" include the plural unless expressly stated otherwise.

[0045] 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, all compositions using the terms "comprising", "including", or "having" in this application may include any additional additives, excipients or compounds unless expressly stated otherwise. In contrast, the term "essentially consisting of" excludes any other components, steps or processes from the scope of any description of the term below, except those necessary for operational performance. The term "consisting of" does not include any components, steps or processes that are not specifically described or listed. Unless expressly stated otherwise, the term "or" refers to the listed members alone or in any combination thereof.

[0046] The embodiments of the present invention will be described in detail below. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0047] The present invention provides a high-efficiency foaming agent capable of improving the foam film capacity, comprising the following components in the following mass percentages:

[0048] Amphoteric surfactant 5-10%

[0049] Ammonium oxide surfactant 8-15%

[0050] Nonionic surfactant 1-5%

[0051] Sodium chloride 0.5-2%

[0052] Sodium α-olefin sulfonate 0.5-2%

[0053] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 0.2-1.5%

[0054] Eggshell membrane extract 0.2-1.5%

[0055] Preservatives 0.05%-0.1%

[0056] Make up 100% of deionized water.

[0057] The formula contains eggshell membrane extract, coexisting with a surfactant. The shell membrane is a fibrous membrane surrounding egg whites, composed of a tough, organic fiber network of keratin. PEG-240 / HDI copolymer bis-decyltetradecyl ether-20 ether, in its flower-like micelle state, interweaves with the rope-like structure of the surfactant to form a three-dimensional lattice structure in water. The eggshell membrane extract, PEG-240 / HDI copolymer bis-decyltetradecyl ether-20 ether, and the surfactant form a multi-dimensional, triangular, interwoven structure within the system, creating a rich, resilient foam and improving the rheological properties of the foaming agent at low temperatures.

[0058] Example 1

[0059] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0060] Cocamidopropyl Betaine 6%

[0061] Cocamidopropylamine oxide 10%

[0062] Decyl Glucoside 1.5%

[0063] Sodium chloride 0.2%

[0064] Sodium α-olefin sulfonate 0.5%

[0065] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 1%

[0066] Eggshell membrane extract 0.2%

[0067] Methylisothiazolinone 0.025%

[0068] Benzisothiazolinone 0.025%

[0069] Make up 100% of deionized water.

[0070] The preparation process of high-efficiency foaming agent is as follows:

[0071] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0072] Step 2: Pre-dissolve the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20) in a portion of the deionized water in the formula. Stir using a dispersing mixer. Then, add the mixture to the first mixture and stir thoroughly to form a second mixture. Pre-dissolution should be performed at 50-59°C.

[0073] In step 3, eggshell membrane extract (purchased powder) is added to a portion of the deionized water in the formula to pre-dissolve, stirred, and then added to the second mixed solution and stirred evenly to form a third mixed solution. The eggshell membrane extract is selected from chicken eggshell membrane powder.

[0074] Step 4: adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution.

[0075] Step 5: Add cocamidopropyl betaine and decyl glucoside to the fourth mixed solution and stir to form a fifth mixed solution.

[0076] Step 6: adding methylisothiazolinone and benzisothiazolinone to the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0077] The amount of water used in steps 1-3 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0078] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0079] During the preparation process, dissolving the most abundant cocamidopropylamine oxide in water first increases its solubility, facilitating mixing and dissolving the subsequent ingredients. Adding the other two surfactants as the penultimate step reduces foaming during stirring in steps 3-5, preventing excessive foaming during the entire stirring process.

[0080] Example 2

[0081] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0082] Cocamidopropyl Betaine 6%

[0083] Cocamidopropylamine oxide 10%

[0084] Decyl Glucoside 1.5%

[0085] Sodium chloride 0.2%

[0086] Sodium α-olefin sulfonate 0.5%

[0087] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 0.5%

[0088] Eggshell membrane extract 0.5%

[0089] Methylisothiazolinone 0.025%

[0090] Benzisothiazolinone 0.025%

[0091] Make up 100% of deionized water.

[0092] The preparation process of high-efficiency foaming agent is as follows:

[0093] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0094] Step 2: Pre-dissolve the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20) in a portion of the deionized water in the formula. Stir using a dispersing mixer. Then, add the mixture to the first mixture and stir thoroughly to form a second mixture. Pre-dissolution should be performed at 50-59°C.

[0095] In step 3, eggshell membrane extract (purchased powder) is added to a portion of the deionized water in the formula to pre-dissolve, stirred, and then added to the second mixed solution and stirred evenly to form a third mixed solution. The eggshell membrane extract is selected from chicken eggshell membrane powder.

[0096] Step 4: adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution.

[0097] Step 5: Add cocamidopropyl betaine and decyl glucoside to the fourth mixed solution and stir to form a fifth mixed solution.

[0098] Step 6: adding methylisothiazolinone and benzisothiazolinone to the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0099] The amount of water used in steps 1-3 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0100] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0101] Example 3

[0102] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0103] Cocamidopropyl Betaine 6%

[0104] Cocamidopropylamine oxide 10%

[0105] Decyl Glucoside 1.5%

[0106] Sodium chloride 0.2%

[0107] Sodium α-olefin sulfonate 0.5%

[0108] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 0.2%

[0109] Eggshell membrane extract 1%

[0110] Methylisothiazolinone 0.025%

[0111] Benzisothiazolinone 0.025%

[0112] Make up 100% of deionized water.

[0113] The preparation process of high-efficiency foaming agent is as follows:

[0114] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0115] Step 2: Pre-dissolve the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20) in a portion of the deionized water in the formula. Stir using a dispersing mixer. Then, add the mixture to the first mixture and stir thoroughly to form a second mixture. Pre-dissolution should be performed at 50-59°C.

[0116] In step 3, eggshell membrane extract (purchased powder) is added to a portion of the deionized water in the formula to pre-dissolve, stirred, and then added to the second mixed solution and stirred evenly to form a third mixed solution. The eggshell membrane extract is selected from chicken eggshell membrane powder.

[0117] Step 4: adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution.

[0118] Step 5: Add cocamidopropyl betaine and decyl glucoside to the fourth mixed solution and stir to form a fifth mixed solution.

[0119] Step 6: adding methylisothiazolinone and benzisothiazolinone to the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0120] The amount of water used in steps 1-3 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0121] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0122] Example 4

[0123] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0124] Cocamidopropyl Betaine 6%

[0125] Cocamidopropylamine oxide 10%

[0126] Decyl Glucoside 1.5%

[0127] Sodium chloride 0.2%

[0128] Sodium α-olefin sulfonate 0.5%

[0129] PEG-240 / HDI Copolymer Bis-Decylmethylenetetradeceth-20 1.5%

[0130] Eggshell membrane extract 1.5%

[0131] Methylisothiazolinone 0.025%

[0132] Benzisothiazolinone 0.025%

[0133] Make up 100% of deionized water.

[0134] The preparation process of high-efficiency foaming agent is as follows:

[0135] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0136] Step 2: Pre-dissolve the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20) in a portion of the deionized water in the formula. Stir using a dispersing mixer. Then, add the mixture to the first mixture and stir thoroughly to form a second mixture. Pre-dissolution should be performed at 50-59°C.

[0137] In step 3, eggshell membrane extract (purchased powder) is added to a portion of the deionized water in the formula to pre-dissolve, stirred, and then added to the second mixed solution and stirred evenly to form a third mixed solution. The eggshell membrane extract is selected from chicken eggshell membrane powder.

[0138] Step 4: adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution.

[0139] Step 5: Add cocamidopropyl betaine and decyl glucoside to the fourth mixed solution and stir to form a fifth mixed solution.

[0140] Step 6: adding methylisothiazolinone and benzisothiazolinone to the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0141] The amount of water used in steps 1-3 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in steps 1-3 is the amount of water in the formula.

[0142] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0143] Example 5

[0144] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0145] Cocamidopropyl Betaine 6%

[0146] Cocamidopropylamine oxide 10%

[0147] Decyl Glucoside 1.5%

[0148] Sodium chloride 0.2%

[0149] Sodium α-olefin sulfonate 0.5%

[0150] Eggshell membrane extract 1%

[0151] Methylisothiazolinone 0.025%

[0152] Benzisothiazolinone 0.025%

[0153] Make up 100% of deionized water.

[0154] The preparation process of high-efficiency foaming agent is as follows:

[0155] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0156] Step 2: Pre-dissolve the eggshell membrane extract (purchased powder) in a portion of the deionized water in the formula, stir, and then add it to the second mixed solution and stir evenly to form a third mixed solution. The eggshell membrane extract is prepared from chicken eggshell membrane powder.

[0157] Step 3: adding sodium chloride and sodium α-olefin sulfonate to the third mixed solution and stirring to form a fourth mixed solution.

[0158] Step 4: Add cocamidopropyl betaine and decyl glucoside to the fourth mixed solution and stir to form a fifth mixed solution.

[0159] Step 5: adding methylisothiazolinone and benzisothiazolinone to the fifth mixed solution, stirring evenly, to obtain a foaming agent.

[0160] The amount of water used in step 1-2 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in step 1-2 is the amount of water in the formula.

[0161] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0162] Comparative Example 1

[0163] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0164] Cocamidopropyl Betaine 6%

[0165] Cocamidopropylamine oxide 10%

[0166] Decyl Glucoside 1.5%

[0167] Sodium chloride 0.2%

[0168] Sodium α-olefin sulfonate 0.5%

[0169] Methylisothiazolinone 0.025%

[0170] Benzisothiazolinone 0.025%

[0171] Make up 100% of deionized water.

[0172] The preparation process of high-efficiency foaming agent is as follows:

[0173] Step 1: add cocamidopropylamine oxide to the deionized water in the formula and stir evenly to form a first mixed solution.

[0174] Step 2: adding sodium chloride and sodium α-olefin sulfonate to the first mixed solution and stirring to form a second mixed solution.

[0175] Step 3: Add cocamidopropyl betaine and decyl glucoside to the second mixed solution and stir to form a third mixed solution.

[0176] Step 4: adding methylisothiazolinone and benzisothiazolinone to the third mixed solution, stirring evenly, to obtain a foaming agent.

[0177] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0178] Comparative Example 2

[0179] A high-efficiency foaming agent capable of improving the foam film capacity includes the following components in the following mass percentages:

[0180] Cocamidopropyl Betaine 6%

[0181] Cocamidopropylamine oxide 10%

[0182] Decyl Glucoside 1.5%

[0183] Sodium chloride 0.2%

[0184] Sodium α-olefin sulfonate 0.5%

[0185] PEG-240 / HDI Copolymer Bis-Decyltetradeceth-20 Ether 1%

[0186] Methylisothiazolinone 0.025%

[0187] Benzisothiazolinone 0.025%

[0188] Make up 100% of deionized water.

[0189] The preparation process of high-efficiency foaming agent is as follows:

[0190] Step 1: add cocamidopropylamine oxide to part of the deionized water in the formula and stir evenly to form a first mixed solution.

[0191] Step 2: Pre-dissolve the PEG-240 / HDI copolymer (bis-decyltetradecyl alcohol polyether-20) in a portion of the deionized water in the formula. Stir using a dispersing mixer. Then, add the mixture to the first mixture and stir thoroughly to form a second mixture. Pre-dissolution should be performed at 50-59°C.

[0192] Step 3: adding sodium chloride and sodium α-olefin sulfonate to the second mixed solution and stirring to form a third mixed solution.

[0193] Step 4: Add cocamidopropyl betaine and decyl glucoside to the third mixed solution and stir to form a fourth mixed solution.

[0194] Step 5: adding methylisothiazolinone and benzisothiazolinone to the fourth mixed solution, stirring evenly, to obtain a foaming agent.

[0195] The amount of water used in step 1-2 is at least an amount that can completely dissolve the raw materials, and the total amount of water used in step 1-2 is the amount of water in the formula.

[0196] During the preparation process, when the liquid is transparent and there is no colloid visually, it means that the raw materials are evenly dispersed.

[0197] Effect embodiment

[0198] 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.

[0199] 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.

[0200] Foam height detection method: The same amount of the foaming agent of Examples 1-5 and Comparative Examples 1-2 was added with water to prepare a solution, which was then kept at a constant temperature of 65°C for 12 hours. The solution was tested at 65°C using the Ross-Miles method using a Ross foam meter. The test results are shown in Table 2.

[0201] 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 foaming power was tested by reverse heat aging. The results are shown in Table 3.

[0202] Eggshell membrane thermal stability test in foaming agents: To investigate the compatibility of eggshell membranes in foaming agents in practical applications, equal amounts of the foaming agents of Examples 1-5 were prepared using gas well formation water to prepare aqueous solutions with mass concentrations of 0.1%, 0.3%, 0.5%, 0.7%, and 0.9%. Each aqueous solution was then divided into five portions and placed under -15°C, 0°C, sunlight, 25°C, and 48°C for 15 days. No significant changes were observed after returning to room temperature and comparing with the 0°C standard sample. All aqueous solutions were clear, transparent, without precipitation or stratification, indicating that the foaming agents configured with eggshell membranes in this application have excellent stability and good compatibility among surfactants.

[0203] Table 1 Foam thickness test results of Examples 1-5 and Comparative Examples 1-3

[0204]

[0205] Thickness reduction ratio % = (initial thickness - thickness at 120S) / initial height

[0206] 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 polyether-20 ether can optimize the performance of the foaming agent.

[0207] Compared with Comparative Example 2, in Example 1, the foaming agent containing eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether has a thicker foam, a slower rate of decrease in foam thickness, and a more stable foam than the foaming agent containing only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0208] The foam thickness of the foaming agent of Example 3 is greater than the foam thickness 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 polyether-20 ether is thicker than that of the foaming agent with only eggshell membrane extract added, the rate of decrease of foam thickness is slower, and the foam is more stable.

[0209] Compared with Example 2, Example 5 has a foam thickness greater than that of Comparative Example 2, and its 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 more effective than adding PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0210] The foaming agent of Example 2 produced the thickest foam, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to eggshell membrane extract was 1:1 in both formulations. The total addition level of Example 2 was 1%, while that of Example 4 was 2%. However, the foaming agent performed worse than that of Example 1. Furthermore, the higher addition level increased cost and viscosity, making it more difficult to apply. The optimal ratio of eggshell membrane extract to PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether was 1:1, and the optimal total addition level of both was 1%.

[0211] Table 2 Foam height test results of Examples 1-5 and Comparative Examples 1-3

[0212]

[0213] Height reduction ratio % = (initial height - height at 5 minutes) / initial height

[0214] 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 polyether-20 ether can optimize the performance of the foaming agent.

[0215] Compared with Comparative Example 2, the foaming agent containing eggshell membrane extract and PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether in Example 1 has a higher foam height, a slower rate of decrease in foam height, and a more stable foam than the foaming agent containing only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0216] 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 polyether-20 ether is higher than that of the foaming agent with only eggshell membrane extract added, the rate of decrease of foam height is slower, and the foam is more stable.

[0217] Compared with Example 2, Example 5 shows that 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 the addition of eggshell membrane extract to the foaming agent has a better optimization effect than the addition of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0218] The foaming agent of Example 2 produced the highest foam height, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to eggshell membrane extract in both was 1:1. The total addition level of Example 2 was 1%, while that of Example 4 was 2%. However, the foaming agent performed worse than that of Example 1. Furthermore, the higher addition level increased cost, and the higher viscosity made it difficult to use. The optimal ratio of eggshell membrane extract to PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether was 1:1, and the optimal total addition level of both was 1%.

[0219] Table 3 Thermal aging foaming test results of Examples 1-5 and Comparative Examples 1-3

[0220]

[0221] Height reduction ratio % = (initial height - height at 5 minutes) / initial height

[0222] The results of the heat aging foaming test in Table 3 show that the foam height of the foaming agents containing eggshell membrane extract was still higher than that of the foaming agents without eggshell membrane extract, and the foam stability was also better. The foaming agents of Examples 1-5 containing eggshell membrane extract were treated at 100°C for 24 hours, and the foam height was only slightly lower than the results in Table 2. Therefore, the eggshell membrane extract has good thermal stability.

[0223] Table 4 Liquid carrying capacity test results of Examples 1-5 and Comparative Examples 1-2

[0224]

[0225] 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 polyether-20 ether can optimize the performance of the foaming agent.

[0226] Compared with Comparative Example 2, Example 1 shows that the foaming agent containing 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 containing only PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0227] 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 containing the eggshell membrane extract and the PEG-240 / HDI copolymer bis-decyltetradecyl polyether-20 ether can carry more liquid than the foaming agent containing only the eggshell membrane extract, and has better performance.

[0228] 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 the addition of eggshell membrane extract to the foaming agent has a better optimization effect than the addition of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether.

[0229] The foaming agent of Example 2 had the highest liquid carrying capacity, followed by Example 4. The ratio of PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether to eggshell membrane extract in both was 1:1. The total addition level of Example 2 was 1%, and that of Example 4 was 2%. However, the foaming agent performed worse than that of Example 1. Furthermore, the higher addition level increased cost, and the higher viscosity made it difficult to use. The optimal ratio of eggshell membrane extract to PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether was 1:1, and the optimal total addition level of both was 1%.

[0230] The eggshell membrane extract used in the present invention belongs to the category of biological membranes, is a renewable resource that can be recycled, has excellent degradability, is pollution-free, and is an environmentally friendly material.

[0231] Although certain embodiments of the present invention have been described in this application, those skilled in the art will appreciate that these embodiments are provided by way of example only. Numerous variations, alternatives, and modifications will be contemplated by those skilled in the art in light of the teachings of this disclosure without departing from the scope of the present invention. The appended claims are intended to define the scope of the present invention and are intended to encompass methods and structures within the scope of these claims 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-Decyltetradeceth-20 Ether 0.2-1% Eggshell membrane extract 0.2-1% Preservatives 0.05%-0.1% Deionized water is replenished 100%; The amphoteric surfactant is cocamidopropyl betaine; The ammonium oxide surfactant is cocamidopropylamine oxide; The nonionic surfactant is decyl glucoside.

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-Decyltetradeceth-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 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: The preservatives include methylisothiazolinone and / or benzisothiazolinone.

8. A method for preparing a high-efficiency foaming agent capable of improving 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 a portion of the deionized water in the formulation and stirring uniformly to form a first mixed solution; S2) pre-dissolving PEG-240 / HDI copolymer bis-decyltetradecyl alcohol polyether-20 ether in a portion of the deionized water in the formulation, stirring using a dispersing mixer, and then adding the mixture to the first mixed solution and 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 it, stirring, and then adding it to the second mixed solution and 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 to the fifth mixed solution and stirring the mixture 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-decyltetradeceth-20 ether is 50-59°C.

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