Modified halloysite and preparation method thereof, composition for non-curing waterproof coating, non-curing waterproof coating as well as preparation method and application of non-curing waterproof coating

Abstract

The invention relates to the technical field of waterproof coatings, and discloses modified halloysite and a preparation method thereof, a composition for a non-curing waterproof coating, the non-curing waterproof coating and a preparation method and application of the non-curing waterproof coating. The method for preparing the modified halloysite comprises the following steps: (1) carrying out first mixing on sunflower seed meal and an ethanol solution to obtain extract liquor; the mass concentration of the ethanol solution is 40-60%; (2) carrying out second mixing on a raw material halloysite nanotube and the extract liquor to obtain the modified halloysite, in the step (1), the mass ratio of the sunflower seed meal to the ethanol solution is 1: (5-19); in the step (2), the use amount mass ratio of the raw material halloysite nanotube to the extract liquor is 1: (1.5-2.5). The non-curing waterproof coating prepared from the modified halloysite provided by the invention has good antibacterial and mildew-proof properties.

Description

Technical Field

[0001] This invention relates to the field of waterproof coating technology, specifically to a modified halloysite and its preparation method, a composition for non-curing waterproof coatings, a non-curing waterproof coating and its preparation method and application. Background Technology

[0002] Traditional waterproof membranes and curing-type waterproof coatings are common waterproofing materials, and their technology and application are well-established. Non-curing waterproof coatings, as a new type of waterproofing material, are typically made primarily of rubber and asphalt, combined with various polymer modifiers, softening oils, and fillers. This material differs from traditional curing-type waterproof coatings (such as polyurethane, acrylic, and polymer cement-based coatings) in that its core characteristic lies in its "never-curing" physical property. It maintains a viscous paste-like state throughout its service life, thus giving it unique waterproofing performance and construction advantages.

[0003] However, existing non-curing waterproof coatings still have at least the following drawbacks: First, there is the issue of volatility. During the heating and construction process, asphalt releases a large amount of volatile organic compounds (VOCs), such as polycyclic aromatic hydrocarbons. These substances not only harm the health of construction workers but also pollute the atmospheric environment, failing to meet environmental protection requirements.

[0004] Secondly, the antibacterial properties are insufficient. Asphalt or non-asphalt-based non-cured materials do not have obvious antibacterial functions. In humid environments, the waterproof layer is prone to the growth of bacteria, mold and other microorganisms, which can lead to aging and damage of the waterproof layer and shorten the service life of the waterproof project.

[0005] Third, its weather resistance is limited. Under the long-term effects of sunlight, high temperature, low temperature and other environmental factors, waterproof coatings will age and become brittle, reducing their waterproof and adhesion performance.

[0006] CN119350972A discloses a non-asphalt-based, non-curing waterproof coating. This waterproof coating comprises the following components: liquid resin, thermoplastic elastomer modifier, rubber modifier, crosslinking agent, accelerator, filler, chemical root inhibitor, plasticizer, and dispersant, and optionally at least one of pigment, resin modifier, antioxidant, and deodorizer. This non-asphalt-based, non-curing waterproof coating exhibits high elongation and heat aging resistance. However, this material lacks significant antibacterial properties, and its anti-aging performance is mainly enhanced by antioxidants. However, antioxidants are expensive and tend to migrate and become ineffective within the system, thus limiting the anti-aging performance of this waterproof coating.

[0007] Therefore, developing a new type of non-curing waterproof coating with long-lasting antibacterial properties is of great significance. Summary of the Invention

[0008] The present application aims to overcome the problems of insufficient antibacterial performance and low weather resistance of the non-cured waterproof coating in the prior art.

[0009] To achieve the above-mentioned purpose, the first aspect of the present application provides a method for preparing modified halloysite, which comprises: (1) first mixing sunflower seed meal with an ethanol solution to obtain an extraction solution; the mass concentration of the ethanol solution is 40-60%; (2) second mixing raw halloysite nanotubes with the extraction solution to obtain the modified halloysite; In step (1), the mass ratio of the sunflower seed meal to the ethanol solution is 1:5-19; In step (2), the mass ratio of the raw halloysite nanotubes to the extraction solution is 1:1.5-2.5.

[0010] The second aspect of the present application provides the modified halloysite prepared by the method of the aforementioned first aspect.

[0011] The third aspect of the present application provides a composition for non-cured waterproof coating, which is composed of a main agent and an auxiliary agent, wherein the main agent contains softening oil, tackifying resin, high molecular modifier and modified filler; The content of the softening oil is 30-50 wt%, the content of the tackifying resin is 10-25 wt%, the content of the high molecular modifier is 8-18 wt%, and the content of the modified filler is 15-35 wt%, based on the total weight of the composition for non-cured waterproof coating; The molecular weight of the tackifying resin is 1500-5000 g / mol, and the softening point is 80-140℃; The modified filler is the modified halloysite of the aforementioned second aspect.

[0012] The fourth aspect of the present application provides a method for preparing non-cured waterproof coating, which applies each component in the composition of the aforementioned third aspect, and the method comprises: stirring and mixing each component in the composition to obtain the non-cured waterproof coating.

[0013] Preferably, the conditions of the stirring and mixing include: temperature of 140-190℃, and time of 1-8h.

[0014] The fifth aspect of the present application provides the non-cured waterproof coating prepared by the method of the aforementioned fourth aspect.

[0015] The sixth aspect of the present application provides the application of the non-cured waterproof coating of the aforementioned fifth aspect in the field of waterproof engineering.

[0016] The raw material halloysite nanotube is subjected to specific modification treatment by sunflower seed meal extraction liquid, and then modified halloysite is obtained, which is used as an important component in a non-cured waterproof coating composition, and is combined with softening oil, tackifying resin and other components to prepare the non-cured waterproof coating, which has excellent long-acting antibacterial performance and weather resistance.

[0017] Through the above technical solution, the present application also has at least the following beneficial technical effects: (1) The non-cured waterproof coating provided by the present application is a new non-asphalt-based non-cured waterproof coating, which has good mildew and bacteria inhibition effect, good stability, long service life, and is more suitable for waterproof engineering application in a humid environment.

[0018] (2) The halloysite modified by sunflower seed meal extraction liquid is used as a modified filler in the present application, so that the obtained non-cured waterproof coating has excellent heat resistance and aging resistance, and also has the characteristics of environmental protection and low production cost. DETAILED DESCRIPTION

[0019] The endpoints of the ranges and any values disclosed herein are not limited to the precise values stated. The endpoints of the ranges and any values are understood to be approximate values. The endpoints of the ranges of values and the values thereof can be combined with one another even though not expressly stated in the application. The endpoints of the ranges of values and the values thereof can be combined with one another to create a new range of values, which is understood to be within the scope of the present application.

[0020] As described above, the first aspect of the present application provides a method for preparing modified halloysite, which comprises: (1) first mixing sunflower seed meal with an ethanol solution to obtain an extraction liquid; the mass concentration of the ethanol solution is 40-60%; (2) second mixing raw material halloysite nanotube with the extraction liquid to obtain the modified halloysite; In step (1), the mass ratio of the sunflower seed meal to the ethanol solution is 1:5-19; In step (2), the mass ratio of the raw material halloysite nanotube to the extraction liquid is 1:1.5-2.5.

[0021] According to a preferred embodiment, the crude protein content in the sunflower seed meal is 30-35%, and the average diameter of the sunflower seed meal is 100-250 μm. The inventors of the present application found that in this preferred case, the non-cured waterproof coating provided by the present application has more excellent antibacterial performance.

[0022] According to a preferred embodiment, the specific surface area of the raw material halloysite nanotube is 20-70 m 2 / g. The inventors of the present application found that in this preferred case, the non-cured waterproof coating provided by the present application has better antibacterial property and weather resistance.

[0023] In the present application, the content of crude protein in the said sunflower meal is 30-35% by mass fraction based on the sunflower meal as dry matter.

[0024] In some embodiments, in step (1), the conditions of the first mixing include: temperature of 50-60℃, time of 1-3h.

[0025] In some embodiments, in step (2), the conditions of the second mixing include: temperature of 20-50℃, time of 1.5-5h, pressure of 0-0.2MPa.

[0026] According to a specific embodiment, in step (2), before the second mixing of the raw halloysite nanotubes, the method further comprises a drying treatment and a grinding treatment of the raw halloysite nanotubes, and the average diameter of the halloysite nanotubes is 2-40μm after the grinding.

[0027] According to a specific embodiment, in step (2), the method further comprises a filtering and drying treatment of the mixture obtained after the second mixing, to obtain the modified halloysite.

[0028] As mentioned before, the second aspect of the present application provides a modified halloysite prepared by the method of the first aspect.

[0029] As mentioned before, the third aspect of the present application provides a non-cured waterproof coating composition, which is composed of a main agent and an auxiliary agent, wherein the main agent contains a softening oil, a tackifying resin, a high molecular modifier and a modified filler. The content of the softening oil is 30-50wt%, the content of the tackifying resin is 10-25wt%, the content of the high molecular modifier is 8-18wt%, and the content of the modified filler is 15-35wt%, based on the total weight of the non-cured waterproof coating composition; The molecular weight of the tackifying resin is 1500-5000g / mol, and the softening point is 80-140℃. The modified filler is the modified halloysite of the second aspect.

[0030] According to a specific embodiment, the softening oil is selected from at least one of aromatic oil, naphthenic oil, white oil, paraffin oil and reduced line oil.

[0031] According to a preferred embodiment, the softening oil is a combination of aromatic oil R9, aromatic oil YH-1 and naphthenic oil 4006 in a mass ratio of 5-6:3-4:1.

[0032] According to a specific embodiment, the tackifying resin is selected from at least one of C5 hydrogenated petroleum resin, C9 hydrogenated petroleum resin and dicyclopentadiene resin.

[0033] According to a preferred embodiment, the tackifying resin is a combination of C9 hydrogenated petroleum resin and C5 hydrogenated petroleum resin in a mass ratio of 3-4:1.

[0034] In some embodiments, the high molecular modifier is selected from at least one of styrene-butadiene-styrene triblock copolymer, styrene-butadiene rubber, hydrogenated styrene-butadiene block copolymer and styrene-isoprene-styrene triblock copolymer.

[0035] In some embodiments, the auxiliary agent includes wax powder and pigment; the content of the wax powder is 1-5 wt% and the content of the pigment is 1-5 wt% based on the total weight of the composition for non-cured waterproof coating.

[0036] According to a specific embodiment, the wax powder is selected from at least one of PE wax, PP wax, oxidized polyethylene wax and amide wax.

[0037] According to a specific embodiment, the pigment is iron oxide red and / or emeraldine oxide, and the average diameter is 2-35 μm.

[0038] As described before, the fourth aspect of the present application provides a method for preparing non-cured waterproof coating, which applies the components in the composition of the third aspect described before, and the method includes: stirring and mixing the components in the composition to obtain the non-cured waterproof coating.

[0039] Preferably, the conditions of the stirring and mixing include: temperature of 140-190℃ and time of 1-8h.

[0040] According to a specific embodiment, the step of preparing the non-cured waterproof coating includes: S1: stirring and treating softening oil at 150-160℃ for 15-30 min to obtain material I; S2: mixing high molecular modifier, tackifying resin and the material I at 180-190℃ for 1-4h to obtain material II; S3: stirring and dispersing modified filler and auxiliary agent with the material II at a temperature of 140-170℃ for 1-2h to obtain the non-cured waterproof coating after cooling.

[0041] As described above, the fifth aspect of the present application provides the non-cured waterproof coating prepared by the method of the aforementioned fourth aspect.

[0042] As described above, the sixth aspect of the present application provides the application of the non-cured waterproof coating of the aforementioned fifth aspect in the field of waterproof engineering.

[0043] In order to more clearly understand the technical features, objectives and beneficial effects of the present application, the present application will be described in detail through examples. It should be understood that the specific examples described herein are only used to explain the present application, and the protection scope of the present application is not limited to the following description. In the following examples, various raw materials and reagents used are commercially available unless otherwise specified.

[0044] Some raw materials used in the following examples and their sources are as follows: Sunflower meal-I: the average diameter is 150 μm, the crude protein content is 33%, and it is purchased from Guangzhou Lushen Oil and Fat Company.

[0045] Sunflower meal-II: the average diameter is 1400 μm, the crude protein content is 21%, and it is purchased from Huama Biological Technology Company.

[0046] Raw halloysite nanotube-I: the average diameter is 35 μm, the specific surface area is 31 m 2 / g, and it is purchased from Suzhou Kaifa New Material Company; Raw halloysite nanotube-II: the specific surface area is 2.5 m 2 / g, and it is purchased from Suzhou Kaifa New Material Company; Heavy calcium: the average diameter is 45 μm, and it is purchased from Jiangxi Guangyuan Chemical Industry Company; Montmorillonite: the average diameter is 33 μm, and it is purchased from Lingshou Xuyang Mining Company; Talc powder: the average diameter is 18 μm, and it is purchased from Xufeng Powder Company; Softening oil-I: the combination of aromatic oil R9, aromatic oil YH-1 and naphthenic oil 4006 with a mass ratio of 6:3:1; wherein, the aromatic oil R9 is purchased from Guangzhou Dagang Petroleum Technology Company, the YH-1 is purchased from Xiamen Haohai Petroleum Company, and the naphthenic oil 4006 is purchased from Hubei Bolun Energy Resource Technology Company; Paraffin oil: the grade is 10#, and it is purchased from Guangzhou Huasheng Chemical Industry Company; Softening oil-II: the combination of aromatic oil R9 and paraffin oil with a mass ratio of 8:2; Tackifying resin-I: A combination of C9 hydrogenated petroleum resin and C5 hydrogenated petroleum resin in a mass ratio of 3:1, with a molecular weight of 2000-5000 g / mol and a softening point of 100-110℃; wherein, the C9 hydrogenated petroleum resin was purchased from Guangzhou Tiankai Chemical Co., Ltd. and the C5 hydrogenated petroleum resin was purchased from Puyang Zhongke Xinyuan Co., Ltd. Dicyclopentadiene (DCPD) resin: softening point 120℃, purchased from Shandong Shenxian Ruisen Petroleum Resin Co., Ltd. PE wax: grade 4110, purchased from Suzhou Fite Brothers Company; PP wax: Grade QW-12, purchased from Nanjing Tianshi New Materials Co., Ltd.; Amide wax: Grade 451B, purchased from Nanjing Tianshi New Materials Co., Ltd.; Styrene-butadiene-styrene triblock copolymer (SBS): Grade 411, purchased from LG Corporation; Styrene-butadiene rubber (SBR): Grade 473, purchased from Shandong Haifang New Materials Co., Ltd. Styrene-isoprene-styrene triblock copolymer (SIS): Product number or grade 1105, purchased from Sinopec Chemical Company; Iron oxide red: average diameter 20μm, grade H130, purchased from Guangzhou Chutian Pigment Company; Oxidized emerald green: average diameter 30μm, purchased from Guangzhou Chutian Pigment Company.

[0047] Preparation Example 1 This preparation example illustrates the preparation of the modified halloysite provided by the present invention, including the following steps: (1) At 50°C, sunflower seed meal-I and 50% ethanol aqueous solution were ultrasonically mixed for 3 hours. The amount of ethanol aqueous solution was controlled so that the mass ratio of sunflower seed meal-I to ethanol aqueous solution was 1:5 to obtain the extract.

[0048] (2) At a temperature of 35°C and a pressure of 0.1 MPa, the raw material halloysite nanotube-I was impregnated and mixed with the above extract at a mass ratio of 1:1.5 for 3 hours. After filtration and drying, modified halloysite-I was obtained.

[0049] Preparation Example 2 (1) At 60°C, sunflower seed meal-I and 40% ethanol aqueous solution were ultrasonically mixed for 2 hours. The amount of ethanol aqueous solution was controlled so that the mass ratio of sunflower seed meal-I to ethanol aqueous solution was 1:15 to obtain the extract.

[0050] (2) The raw material halloysite nanotube-I is impregnated and mixed with the above-mentioned extraction liquid at a mass ratio of 1:2 for 2h at a temperature of 30°C and a pressure of 0.1 MPa, and then modified halloysite-II is obtained after filtration and drying.

[0051] Preparation Example 3 (1) The sunflower seed meal-II is ultrasonically mixed with an ethanol aqueous solution with a mass concentration of 50% at 50°C for 3h, and the amount of the ethanol aqueous solution is controlled so that the mass ratio of the sunflower seed meal-II to the ethanol aqueous solution is 1:10, and then an extraction liquid is obtained.

[0052] (2) The raw material halloysite nanotube-I is impregnated and mixed with the above-mentioned extraction liquid at a mass ratio of 1:2 for 4h at a temperature of 25°C and a pressure of 0.2 MPa, and then modified halloysite-III is obtained after filtration and drying.

[0053] Preparation Example 4 (1) The sunflower seed meal-I is ultrasonically mixed with an ethanol aqueous solution with a mass concentration of 50% at 50°C for 3h, and the amount of the ethanol aqueous solution is controlled so that the mass ratio of the sunflower seed meal-I to the ethanol aqueous solution is 1:5, and then an extraction liquid is obtained.

[0054] (2) The raw material halloysite nanotube-II is impregnated and mixed with the above-mentioned extraction liquid at a mass ratio of 1:1.5 for 3h at a temperature of 50°C and a pressure of 0.05 MPa, and then modified halloysite-IV is obtained after filtration and drying.

[0055] Comparative Preparation Example 1 (1) The sunflower seed meal-I is ultrasonically mixed with an ethanol aqueous solution with a mass concentration of 50% at 50°C for 3h, and the amount of the ethanol aqueous solution is controlled so that the mass ratio of the sunflower seed meal-I to the ethanol aqueous solution is 1:15, and then an extraction liquid is obtained.

[0056] (2) The raw material halloysite nanotube-I is impregnated and mixed with the above-mentioned extraction liquid at a mass ratio of 1:0.5 for 2h at a temperature of 30°C and a pressure of 0.2 MPa, and then modified halloysite-DI is obtained after filtration and drying.

[0057] Comparative Preparation Example 2 (1) The sunflower seed meal-I is ultrasonically mixed with an ethanol aqueous solution with a mass concentration of 50% at 50°C for 3h, and the amount of the ethanol aqueous solution is controlled so that the mass ratio of the sunflower seed meal-I to the ethanol aqueous solution is 1:5, and then an extraction liquid is obtained.

[0058] (2) The heavy calcium carbonate and the extraction solution are mixed by impregnation at a mass ratio of 1:1.5 for 3 hours at a temperature of 35°C and a pressure of 0.1 MPa, and then filtered and dried to obtain modified heavy calcium carbonate.

[0059] Comparative Preparation Example 3 (1) The sunflower seed meal-I is mixed with an ethanol aqueous solution with a mass concentration of 50% by ultrasonic mixing at 50°C for 3 hours, and the amount of the ethanol aqueous solution is controlled so that the mass ratio of the sunflower seed meal-I to the ethanol aqueous solution is 1:5 to obtain an extraction solution.

[0060] (2) The montmorillonite and the extraction solution are mixed by impregnation at a mass ratio of 1:1.5 for 3 hours at a temperature of 35°C and a pressure of 0.1 MPa, and then filtered and dried to obtain modified montmorillonite.

[0061] The following examples are used to illustrate the preparation of the non-cured waterproof coating, specifically: Example 1 S1: The softening oil is heated and stirred at 150°C for 30 minutes to obtain material I; S2: The temperature is adjusted to 180°C, and the high molecular modifier, tackifying resin, and the material I are mixed for 3 hours to obtain material II; S3: The temperature is adjusted to 160°C, and the wax powder, pigment, and modified filler are stirred and dispersed with the material II for 1 hour, and then the heating is stopped, and the non-cured waterproof coating is obtained after cooling.

[0062] The specific types and amounts of substances in this example are shown in Table 1.

[0063] In the absence of special instructions, Examples 2 and 3 are carried out by referring to the method of Example 1, except that the types and amounts of substances are not the same, and the specific parameters are shown in Table 1.

[0064] Table 1

[0065] Example 4 This example is carried out by referring to the method of Example 1, except that equal parts by weight of modified halloysite-III are used instead of modified halloysite-I in Example 1 to obtain non-cured waterproof coating-IV.

[0066] Example 5 This example is carried out by referring to the method of Example 1, except that equal parts by weight of modified halloysite-IV are used instead of modified halloysite-I in Example 1 to obtain non-cured waterproof coating-V.

[0067] Comparative Preparation Example 3 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of modified halloysite-DI instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DI.

[0068] Comparative Example 2 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of modified ground calcium carbonate prepared in Comparative Preparation Example 2 instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DII.

[0069] Comparative Example 3 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of ground calcium carbonate instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DIII.

[0070] Comparative Example 4 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of talc instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DIV.

[0071] Comparative Example 5 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of raw halloysite nanotube-I instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DV.

[0072] Comparative Example 6 The comparative example was carried out with reference to the method of Example 1, except that the comparative example used equal parts by weight of modified montmorillonite prepared in Comparative Preparation Example 3 instead of modified halloysite-I in Example 1 to obtain a non-cured waterproof coating-DVI.

[0073] Test Example The test example was used to illustrate the antibacterial performance and weather resistance of the non-cured waterproof coating obtained above.

[0074] Antibacterial performance test: carried out with reference to the standard GB / T 21866-2008, Staphylococcus aureus was selected as the test bacteria, and the antibacterial rate of the coating and the surface antibacterial rate after the coating was exposed for 30 days were tested; Weather resistance test: carried out with reference to the standard JC / T 2428-2017, including heat resistance limit temperature and heat aging low temperature flexibility.

[0075] The specific test results are shown in Table 2.

[0076] Table 2

[0077] It can be seen from the results in Table 2 that the non-cured waterproof coating prepared by using the modified halloysite provided by the application as a modified filler has excellent long-acting mildew and bacteria inhibiting performance, and good heat resistance and aging resistance, and still has considerable application prospect in a humid environment.

[0078] The preferred embodiments of the application are described in detail above, but the application is not limited thereto. Within the technical concept of the application, various simple modifications can be made to the technical solutions of the application, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be considered as disclosed by the application and fall within the protection scope of the application.

Claims

1. A method for preparing modified halloysite, characterized in that, The method includes: (1) Sunflower seed meal is mixed with an ethanol solution to obtain an extract; the mass concentration of the ethanol solution is 40-60%. (2) The raw material halloysite nanotubes are mixed with the extract to obtain the modified halloysite; In step (1), the mass ratio of sunflower seed meal to ethanol solution is 1:5-19; In step (2), the mass ratio of the raw material halloysite nanotubes to the extract is 1:1.5-2.

5.

2. The method according to claim 1, wherein, The sunflower seed meal contains 30-35% crude protein and has an average diameter of 100-250 μm. And / or, the specific surface area of ​​the raw material halloysite nanotubes is 20-70 m². 2 / g.

3. The method according to claim 1 or 2, wherein, In step (1), the conditions for the first mixing include: a temperature of 50-60°C and a time of 1-3 hours; And / or, in step (2), the conditions for the second mixing include: a temperature of 20-50°C, a time of 1.5-5h, and a pressure of 0-0.2MPa.

4. Modified halloysite prepared by the method according to any one of claims 1-3.

5. A composition for a non-curing waterproof coating, characterized in that, The composition consists of a main agent and an auxiliary agent, wherein the main agent contains softening oil, tackifying resin, polymer modifier and modified filler; Based on the total weight of the composition for the non-curing waterproof coating, the content of the softening oil is 30-50 wt%, the content of the tackifying resin is 10-25 wt%, the content of the polymer modifier is 8-18 wt%, and the content of the modified filler is 15-35 wt%. The tackifying resin has a molecular weight of 1500-5000 g / mol and a softening point of 80-140℃. The modified filler is the modified halloysite as described in claim 4.

6. The composition according to claim 5, wherein, The softening oil is selected from at least one of aromatic oil, naphthenic oil, white oil, paraffin oil, and anti-corrosion oil; And / or, the tackifying resin is selected from at least one of C5 hydrogenated petroleum resin, C9 hydrogenated petroleum resin and dicyclopentadiene resin; And / or, the polymer modifier is selected from at least one of styrene-butadiene-styrene triblock copolymer, styrene-butadiene rubber, hydrogenated styrene-butadiene block copolymer, and styrene-isoprene-styrene triblock copolymer.

7. The composition according to claim 5 or 6, wherein, The additives include wax powder and pigments; Based on the total weight of the composition for the non-curing waterproof coating, the content of the wax powder is 1-5 wt%, and the content of the pigment is 1-5 wt%. And / or, the wax powder is selected from at least one of PE wax, PP wax, oxidized polyethylene wax and amide wax; And / or, the pigment is iron oxide red and / or emerald green oxide, and has an average diameter of 2-35 μm.

8. A method for preparing a non-curing waterproof coating, characterized in that, The method is carried out using each component of the composition according to any one of claims 5-7, and the method includes: stirring and mixing each component of the composition to obtain the non-curing waterproof coating; And / or, the mixing conditions include: a temperature of 140-190°C and a time of 1-8 hours.

9. The non-curing waterproof coating prepared by the method according to claim 8.

10. The application of the non-curing waterproof coating according to claim 9 in the field of waterproofing engineering.

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