Modified illite, method for producing the same, non-bituminous binder layer composition, non-bituminous binder layer, and method for producing the same, non-bituminous pre-paved waterproofing roll

Abstract

The application relates to the technical field of waterproof coiled materials, and discloses a modified illite, a preparation method of the modified illite, a non-asphalt-based adhesive layer composition, a non-asphalt-based adhesive layer, a preparation method of the non-asphalt-based adhesive layer and a non-asphalt-based pre-laid waterproof coiled material. The method for preparing the modified illite comprises the following steps: (1) first contacting raw illite with a diamine reagent to obtain an intermediate I; the concentration of the diamine reagent is 0.4-0.6 mol / L; (2) second contacting the intermediate I with a modification solution to obtain the modified illite; the modification solution contains a long-chain alkyl quaternary ammonium salt with a concentration of 0.1-0.5 mol / L. The non-asphalt-based pre-laid waterproof coiled material prepared by the application has excellent adhesive performance and aging resistance, and has the advantages of green environmental protection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproofing membranes, in particular to a modified illite, a preparation method thereof, a non-asphalt-based adhesive layer composition, a non-asphalt-based adhesive layer, a preparation method thereof, and a non-asphalt-based pre-laid waterproofing membrane. BACKGROUND

[0002] Waterproofing membranes are mainly used for building walls, roofs, tunnels, highways, etc., and can resist external rainwater and groundwater seepage. They are a flexible building material product that can be rolled into a roll. As a leak-proof connection between the engineering foundation and the building, they are the first barrier of the entire engineering waterproofing and play a crucial role in the entire project.

[0003] Waterproofing membranes mainly include asphalt-based waterproofing membranes and non-asphalt-based waterproofing membranes. Due to the significant defects of asphalt-based waterproofing membranes in terms of environmental protection, construction safety, and water resistance, more and more research is focused on non-asphalt-based waterproofing membranes under the demand for green buildings and long-term waterproofing.

[0004] Non-asphalt-based waterproofing membranes are generally made of synthetic rubber, synthetic resin, or a blend of the two, with appropriate amounts of chemical additives and fillers, etc. They are made by processes such as mixing, extrusion, or calendering.

[0005] CN205112564U discloses a non-asphalt-based strong cross-film self-adhesive waterproofing membrane. The waterproofing membrane has an upper protective layer, an ultraviolet-resistant layer, a first waterproofing membrane layer, a non-asphalt-based layer, a polyester carcass layer, a non-asphalt-based layer, a second waterproofing membrane layer, and a release film from top to bottom. The waterproofing membrane has excellent high and low temperature resistance, tear strength, nail rod tear strength, and elongation performance. However, this solution uses a multi-layer structure to improve material strength, and the polyester carcass layer contains starch glue, which is prone to mold and failure, resulting in a significantly shortened service life of the waterproofing membrane.

[0006] CN105086895A discloses a non-asphalt-based pre-laid high polymer waterproofing membrane hot melt adhesive and a preparation method thereof, which comprises: naphthenic oil 10-30 parts, antioxidant 0.1-3 parts, silane coupling agent 0.1-1 part, nano titanium dioxide 0.1-1 part, nano zinc oxide 0.1-1 part, styrene-isoprene-styrene copolymer 20-32 parts, styrene-hydrogenated isoprene-diblock copolymer 1-5 parts, C5 / C9 copolymer petroleum resin 15-30 parts, C5 hydrogenated petroleum resin 20-35 parts; the weight ratio of C5 fraction and C9 fraction in the C5 / C9 copolymer petroleum resin is (70-90):(7-11), and the softening point of the C5 / C9 copolymer petroleum resin is 95-110 DEG C. The non-asphalt-based pre-laid high polymer waterproofing membrane prepared by using the hot melt adhesive has good weather resistance, bonding strength and the like, but the anti-aging and waterproof performance of the material is difficult to evaluate, and the raw materials used will release a large amount of volatile components during production and long-term use, which does not meet the environmental protection concept, and secondly, the waterproofing membrane has some limitations on the use environment, and its service life is extremely limited in cold and humid environment.

[0007] Therefore, it is of great significance to develop a new type of non-asphalt-based pre-laid waterproofing membrane. SUMMARY

[0008] The purpose of the present application is to provide an environmentally friendly non-asphalt-based pre-laid waterproofing membrane with high bonding strength, anti-aging and excellent waterproof performance, and excellent antibacterial performance.

[0009] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a method for preparing modified illite, which comprises:

[0010] (1) first contacting raw illite with a diamine reagent to obtain an intermediate I; the concentration of the diamine reagent is 0.4-0.6 mol / L;

[0011] (2) second contacting the intermediate I with a modification solution to obtain the modified illite; the modification solution contains a long-chain alkyl quaternary ammonium salt with a concentration of 0.1-0.5 mol / L.

[0012] The second aspect of the present application provides a modified illite prepared by the method of the first aspect.

[0013] The third aspect of the present application provides a non-asphalt-based adhesive composition, which comprises a main agent and an auxiliary agent, and the main agent is a base oil, a tackifying resin, a polymer modifier and a modified filler.

[0014] The content of the base oil is 100-250 parts by weight, the content of the tackifying resin is 50-100 parts by weight, and the content of the high molecular modifier is 30-80 parts by weight, relative to 100 parts by weight of the modified filler;

[0015] The high molecular modifier is at least one selected from styrene-butadiene-styrene triblock copolymer, styrene-butadiene rubber, hydrogenated styrene-butadiene block copolymer and styrene-isoprene-styrene triblock copolymer;

[0016] The modified filler is the modified illite of the second aspect.

[0017] The fourth aspect of the present application provides a method for preparing a non-asphalt-based adhesive, which uses the components in the composition of the third aspect, and the method comprises: stirring and mixing the components in the composition to obtain the non-asphalt-based adhesive.

[0018] The fifth aspect of the present application provides a non-asphalt-based adhesive prepared by the method of the fourth aspect.

[0019] The sixth aspect of the present application provides a non-asphalt-based pre-laid waterproofing membrane, which comprises reactive sand, a non-asphalt-based adhesive layer, a strong cross film and a release film, and the non-asphalt-based adhesive layer is formed by the non-asphalt-based adhesive of the fifth aspect.

[0020] The present application utilizes the characteristics of illite, such as high potassium and high aluminum, and the ability to freely release negative ions and far infrared rays. After the illite is treated with a diamine reagent, the interlayer gap is enlarged. Then, the illite is contacted with a long-chain alkyl quaternary ammonium salt reagent. The long-chain alkyl further enters the material to enlarge the interlayer gap. At the same time, part of the quaternary ammonium salt is combined with the surface of the illite. Thus, the modified illite of the present application is obtained. The modified illite of the present application is used in non-asphalt-based adhesive, which can greatly improve the overall adsorption effect and antibacterial effect of the material.

[0021] Through the above technical solution, the present application also has at least the following beneficial technical effects:

[0022] (1) The modified illite prepared by the method of the present application has excellent antibacterial properties when used as a modified filler to prepare non-asphalt-based adhesive. At the same time, the non-asphalt-based adhesive has low organic volatile matter content, which reflects more safe, environmentally friendly and reliable characteristics.

[0023] (2) The non-asphalt-based pre-laid waterproofing membrane of the present application has good adhesion and aging resistance. DETAILED DESCRIPTION

[0024] The endpoints of the ranges and any values disclosed herein are not limited to the precise values recited as the exact dimensions are not considered critical for the purposes of the application. The ranges disclosed herein are intended to cover all sub-ranges of the independent ranges. Each individual value disclosed in a range is also specifically disclosed. For example, a range of 1 to 10 also discloses individual values of 2, 3, 4, 5, 6, 7, 8, 9, and 10, as well as sub-ranges such as 2-6, 2-8, 4-8, 3-9, 5-9, 5- 10, and 10-10.

[0025] As previously described, the first aspect of the present application provides a method for preparing modified illite, the method comprising:

[0026] (1) first contacting a raw illite with a diamine reagent to obtain an intermediate I; the concentration of the diamine reagent is 0.4-0.6 mol / L;

[0027] (2) second contacting the intermediate I with a modification solution to obtain the modified illite; the modification solution contains a long-chain alkyl quaternary ammonium salt with a concentration of 0.1-0.5 mol / L.

[0028] Preferably, the water content of the raw illite is not higher than 2 wt%, and the average diameter of the raw illite is 20-150 μm.

[0029] Further preferably, the diamine reagent is selected from at least one of ethylenediamine, 1,2-propanediamine, and 1,3-propanediamine.

[0030] More preferably, the long-chain alkyl quaternary ammonium salt is selected from at least one of cetyltrimethylammonium bromide, cetyltrimethylammonium chloride, and dodecyltrimethylammonium bromide.

[0031] According to a specific embodiment, before obtaining the raw illite, the method further comprises the following operations: crushing and grinding the prepared illite raw material to an average diameter of 20-150 μm, and drying in an oven at 140-160 °C to remove free water and part of the bound water of the material, so that the water content is not higher than 2 wt%. In the present application, the water content of the raw illite is determined by drying method.

[0032] Preferably, the conditions of the first contacting and the second contacting are each independently selected from the group consisting of: temperature of 70-90 °C, time of 4-8 h, and rotation speed of 60-300 rpm.

[0033] According to a specific embodiment, in step (1), before obtaining the intermediate I, the method further comprises washing and drying the material after the first contacting.

[0034] According to a specific embodiment, in step (2), after the second contact, the obtained product is further subjected to separation, washing and drying treatment to obtain the modified illite.

[0035] According to a preferred embodiment, in step (2), the modified illite can be further ground and crushed to make the particle size distribution of the modified illite more uniform, and the average particle size of the modified illite is 13-74 μm.

[0036] The volume of the ethylenediamine solution and the modified solution is not particularly limited in the present application, as long as the raw illite and the intermediate I can be completely soaked.

[0037] As described above, the second aspect of the present application provides a modified illite prepared by the method of the first aspect.

[0038] As described above, the third aspect of the present application provides a non-asphalt-based adhesive composition, which is composed of a main agent and an auxiliary agent, wherein the main agent is a base oil, a tackifying resin, a high molecular modifier and a modified filler;

[0039] The content of the base oil is 100-250 parts by weight, the content of the tackifying resin is 50-100 parts by weight, and the content of the high molecular modifier is 30-80 parts by weight, relative to 100 parts by weight of the modified filler;

[0040] 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;

[0041] The modified filler is the modified illite of the second aspect.

[0042] Preferably, the high molecular modifier is a combination of styrene-butadiene-styrene triblock copolymer (SBS), styrene-butadiene rubber (SBR) and styrene-isoprene-styrene triblock copolymer (SIS) with a weight ratio of 1.5-2:1.2-1.5:1. The inventors of the present application found that in this preferred case, the non-asphalt-based pre-laid waterproofing membrane prepared by the present application has more outstanding anti-aging performance and adhesion performance.

[0043] More preferably, the base oil is selected from at least one of aromatic oil, naphthenic oil and linear oil.

[0044] Further preferably, the tackifying resin is selected from at least one of C5 petroleum resin, C9 petroleum resin, coumarone resin, rosin resin and terpene resin.

[0045] According to a preferred embodiment, the auxiliary agent comprises a coupling agent, a wax substance and a pigment; the content of the coupling agent is 0.5-1.5 parts by weight, the content of the wax substance is 3-15 parts by weight, and the content of the pigment is 5-15 parts by weight, relative to 100 parts by weight of the modified filler.

[0046] According to a more preferred embodiment, in the auxiliary agent, the coupling agent is selected from γ-(2,3-epoxypropoxy)propyltrimethoxysilane and / or γ-methacryloyloxypropyltrimethoxysilane.

[0047] According to a particularly preferred embodiment, the wax substance is selected from at least one of PE wax, PP wax and amide wax.

[0048] Further preferably, the pigment is iron oxide red and / or emeraldine, and the average diameter is 2-35 μm.

[0049] As mentioned above, the fourth aspect of the present application provides a method for preparing a non-pitch-based adhesive, which method applies the components in the composition according to the third aspect as mentioned above, and the method comprises: mixing the components in the composition by stirring to obtain the non-pitch-based adhesive.

[0050] Preferably, the conditions of the stirring mixing include: temperature of 160-180 °C, and time of 5-8 h.

[0051] According to a preferred embodiment, the method for preparing the non-pitch-based adhesive comprises the following steps:

[0052] 1) adding base oil and tackifying resin into a reactor preheated to 160-170 °C, and heating and stirring for 20 min to obtain intermediate material I;

[0053] 2) mixing high molecular modifier, coupling agent and wax substance with the intermediate material I, and stirring at 175-185 °C for 3 h to obtain intermediate material II;

[0054] 3) mixing modified filler and pigment with the intermediate material II, and stirring at 175-185 °C for 1 h, and then continuously adding coupling agent and reacting at 165-175 °C for 1 h to obtain the non-pitch-based adhesive.

[0055] As mentioned above, the fifth aspect of the present application provides a non-pitch-based adhesive prepared by the method according to the fourth aspect as mentioned above.

[0056] As described above, the sixth aspect of the present application provides a non-asphalt-based pre-paving waterproofing membrane, which comprises a reactive sand, a non-asphalt-based adhesive layer, a strong cross film, a non-asphalt-based adhesive layer, and a release film, wherein the non-asphalt-based adhesive layer is formed by the non-asphalt-based adhesive described in the aforementioned fifth aspect.

[0057] Preferably, the average diameter of the reactive sand is 400-800 μm.

[0058] Further preferably, the strong cross film is a four-layer laminated strong cross film with an average thickness of 190-320 μm.

[0059] Particularly preferably, the release film is selected from a silicon-coated PE release film and / or a PET release film.

[0060] In the present application, the non-asphalt-based pre-paving waterproofing membrane comprises, from top to bottom, a reactive sand, a non-asphalt-based adhesive layer, a strong cross film, a non-asphalt-based adhesive layer, and a release film.

[0061] The present application will be described in detail below by way of examples. In the following examples, various instruments and materials used are commercially available unless otherwise specified.

[0062] Some of the materials used in the following examples and their sources are as follows:

[0063] Material illite:

[0064] Material illite-I: average diameter of 50 μm;

[0065] Material illite-II: average diameter of 400 μm;

[0066] Strong cross film: four-layer laminated strong cross film with an average thickness of 280 μm, purchased from Zhi Plastic Industry Co., Ltd.;

[0067] Reactive sand: average diameter of 500 μm, purchased from Beijing Hualin Ruishi Co., Ltd.;

[0068] Release film: PET release film;

[0069] C5 petroleum resin: molecular weight of 1400, purchased from Guangzhou Tiankai Chemical Industry Co., Ltd.;

[0070] Rosin resin: purchased from Puyang Zhongke Xinyuan Petrochemical Co., Ltd.;

[0071] Styrene-butadiene-styrene triblock copolymer (SBS): grade 411#, purchased from LG Corporation;

[0072] Styrene-butadiene rubber (SBR): grade 095, purchased from Shandong Gao Company;

[0073] Styrene-isoprene-styrene triblock copolymer (SIS): the brand is 1105, purchased from Yueyang Petrochemical Company;

[0074] γ-(2,3-epoxypropoxy) propyl trimethoxysilane: purchased from Macklin Reagent Co., Ltd.;

[0075] γ-methacryloyloxypropyl trimethoxysilane: purchased from Macklin Reagent Co., Ltd.;

[0076] PE wax: the brand is 4010, purchased from Comino New Material Co., Ltd.;

[0077] PP wax: the brand is 406, purchased from Qingdao Sainuo Chemical Co., Ltd.;

[0078] amide wax: the brand is 206, purchased from Tianpo Wax Powder Co., Ltd.;

[0079] Aromatic oil: the brand is R9, purchased from Guangzhou Dagang Company;

[0080] Naphthenic oil: the brand is 4006, purchased from Guangzhou Dagang Company;

[0081] Iron oxide red: the average diameter is 20 μm, purchased from Guangzhou Chutian Pigment Co., Ltd.;

[0082] Iron oxide green: the average diameter is 30 μm, purchased from Guangzhou Chutian Pigment Co., Ltd.;

[0083] Heavy calcium: the average diameter is 75 μm, purchased from Qixia Rongguan Company.

[0084] Preparation Example 1

[0085] This preparation example is used to illustrate the preparation of the modified illite provided by the present application, which comprises the following steps:

[0086] (1) The raw illite-I with a water content of 0.05wt% after drying treatment was soaked in an ethylenediamine solution with a concentration of 0.5 mol / L for first contact, and the first contact conditions included a temperature of 80℃, a time of 7h, and a rotation speed of 300 rpm.

[0087] (2) The material after the first contact was centrifuged to separate out the solid product, which was washed with deionized water until the ethylenediamine was completely removed (by infrared detection to determine whether the washing liquid still contained ethylenediamine), and then dried at 80℃ for 12h to obtain the intermediate I.

[0088] (3) The intermediate I was soaked in an aqueous solution of cetyltrimethylammonium bromide with a concentration of 0.4 mol / L for second contact, and the second contact conditions included a temperature of 70℃, a time of 5h, and a rotation speed of 250 rpm.

[0089] (4) The material after the second contact is centrifuged to separate the solid product, which is washed with deionized water until no bromide ion is detected (determined by silver nitrate solution), and then the washed product is dried at 80°C for 12h to obtain the modified illite A1.

[0090] Preparation Example 2

[0091] (1) The raw illite-I with a water content of 0.1wt% after drying treatment is immersed in a 1,3-propanediamine solution with a concentration of 0.4mol / L for first contact, and the first contact conditions include a temperature of 70°C, a time of 9h, and a rotation speed of 200rpm.

[0092] (2) The material after the first contact is centrifuged to separate the solid product, which is washed with deionized water until the 1,3-propanediamine is completely removed (determined by infrared detection of whether the washing liquid still contains 1,3-propanediamine), and then dried at 80°C for 12h to obtain the intermediate I.

[0093] (3) The intermediate I is immersed in a 0.1mol / L aqueous solution of dodecyltrimethylammonium bromide for second contact, and the second contact conditions include a temperature of 80°C, a time of 4h, and a rotation speed of 200rpm.

[0094] (4) The material after the second contact is centrifuged to separate the solid product, which is washed with deionized water until no bromide ion is detected (determined by silver nitrate solution), and then the washed product is dried at 80°C for 12h to obtain the modified illite A2.

[0095] Preparation Example 3

[0096] (1) The raw illite-II with a water content of 0.05wt% after drying treatment is immersed in an ethylenediamine solution with a concentration of 0.5mol / L for first contact, and the first contact conditions include a temperature of 80°C, a time of 7h, and a rotation speed of 300rpm.

[0097] (2) The material after the first contact is centrifuged to separate the solid product, which is washed with deionized water until the ethylenediamine is completely removed (determined by infrared detection of whether the washing liquid still contains ethylenediamine), and then dried at 80°C for 12h to obtain the intermediate I.

[0098] (3) The intermediate I is immersed in a 0.4mol / L aqueous solution of hexadecyltrimethylammonium bromide for second contact, and the second contact conditions include a temperature of 70°C, a time of 5h, and a rotation speed of 300rpm.

[0099] (4) The material after the second contact is centrifuged to separate the solid product, which is washed with deionized water until no bromide ion is detected (determined by silver nitrate solution), and then the washed product is dried at 80°C for 12h to obtain the modified illite A3.

[0100] Comparative Preparation Example 1

[0101] (1) The raw illite-I with a water content of 0.05wt% after drying treatment is immersed in an ethylenediamine solution with a concentration of 0.5mol / L for the first contact, and the first contact conditions include a temperature of 80°C, a time of 7h, and a rotation speed of 300rpm.

[0102] (2) The material after the first contact is centrifuged to separate the solid product, which is washed with deionized water until the ethylenediamine is completely removed (determined by infrared detection of whether the washing liquid still contains ethylenediamine), and then dried at 80°C for 12h to obtain the intermediate I.

[0103] (3) The intermediate I is immersed in a sodium dodecyl sulfate aqueous solution with a concentration of 0.4mol / L for the second contact, and the second contact conditions include a temperature of 70°C, a time of 5h, and a rotation speed of 250rpm.

[0104] (4) The material after the second contact is centrifuged to separate the solid product, which is washed with deionized water until no bromide ion is detected (determined by silver nitrate solution), and then the washed product is dried at 80°C for 12h to obtain the modified illite D-A1.

[0105] Comparative Preparation Example 2

[0106] (1) The raw illite-I with a water content of 0.05wt% after drying treatment is immersed in an ethylenediamine solution with a concentration of 0.5mol / L for the first contact, and the first contact conditions include a temperature of 80°C, a time of 7h, and a rotation speed of 300rpm.

[0107] (2) The material after the first contact is centrifuged to separate the solid product, which is washed with deionized water until the ethylenediamine is completely removed (determined by infrared detection of whether the washing liquid still contains ethylenediamine), and then dried at 80°C for 12h to obtain the modified illite D-A2.

[0108] Comparative Preparation Example 3

[0109] (1) The raw illite-I with a water content of 0.05wt% after drying treatment is immersed in a hexadecyl trimethyl ammonium bromide aqueous solution with a concentration of 0.4mol / L, and the immersion conditions include a temperature of 70°C, a time of 5h, and a rotation speed of 300rpm.

[0110] (2) The soaked material is centrifuged to separate the solid product, which is washed with deionized water until no bromide ion is detected (determined by silver nitrate solution), and then the washed product is dried at 80°C for 12h to obtain the modified illite D-A3.

[0111] The examples of the present application are used to prepare non-pitch-based binders. The amounts of raw materials in the following examples are parts by weight, unless otherwise specified, and each part by weight represents 10g.

[0112] Example 1

[0113] S1: The base oil and tackifying resin are added to a reactor preheated to 160°C, heated and stirred for 20min to obtain intermediate material I;

[0114] S2: The polymer modifier, coupling agent, and wax material are stirred and mixed with the intermediate material I at 180°C for 3h to obtain intermediate material II;

[0115] S3: The modified filler and pigment are stirred and mixed with the intermediate material II at 180°C for 1h, then the coupling agent is added, and stirred and reacted at 170°C for 1h to obtain the non-pitch-based binder;

[0116] The specific types and amounts of substances and process parameters of this example are shown in Table 1.

[0117] In the absence of special instructions, Examples 2 and 3 are carried out according to the method of Example 1, except that the types and amounts of substances and process parameters used in the examples are not the same, as shown in Table 1.

[0118] Table 1

[0119]

[0120] Example 4

[0121] This example is carried out according to the method of Example 1, except that equal parts by weight of styrene-butadiene-styrene triblock copolymer (SBS) are used instead of the polymer modifier in Example 1 to obtain non-pitch-based binder B4.

[0122] Example 5

[0123] This example is carried out according to the method of Example 1, except that equal parts by weight of modified illite A3 are used instead of modified illite A1 in Example 1 to obtain non-pitch-based binder B5.

[0124] Comparative Example 1

[0125] The comparative example was carried out with reference to the method of example 1, except that the comparative example used equal weight parts of modified illite D-A1 instead of modified illite A1 in example 1 to obtain a non-asphalt-based binder D-B1.

[0126] Comparative example 2

[0127] The comparative example was carried out with reference to the method of example 1, except that the comparative example used equal weight parts of modified illite D-A2 instead of modified illite A1 in example 1 to obtain a non-asphalt-based binder D-B2.

[0128] Comparative example 3

[0129] The comparative example was carried out with reference to the method of example 1, except that the comparative example used equal weight parts of modified illite D-A3 instead of modified illite A1 in example 1 to obtain a non-asphalt-based binder D-B3.

[0130] Comparative example 4

[0131] The comparative example was carried out with reference to the method of example 1, except that the comparative example used equal weight parts of ground calcium carbonate instead of modified illite A1 in example 1 to obtain a non-asphalt-based binder D-B4.

[0132] Comparative example 5

[0133] The comparative example was carried out with reference to the method of example 1, except that the comparative example used equal weight parts of raw illite-I instead of modified illite A1 in example 1 to obtain a non-asphalt-based binder D-B5.

[0134] Test example 1

[0135] This test example is used to determine the volatile matter VOC content and antibacterial performance of the non-asphalt-based binder obtained above.

[0136] Specifically, the volatile matter VOC content of the non-asphalt-based binder obtained above was tested in accordance with DB 11-1983-2022, and the antibacterial rate of the non-asphalt-based binder was tested in accordance with the GB / T 21866-2008 standard by selecting Staphylococcus aureus as the test bacteria, and the test results are shown in Table 2.

[0137] Table 2

[0138] VOC of the self-adhesive layer / < 10 g / kg Bacteriostatic rate of the self-adhesive layer / % Example 1 8.6 97.2 Example 2 6.3 96.8 Example 3 4.6 96.6 Example 4 8.3 97.0 Example 5 10.7 86.2 Comparative Example 1 12.1 76.4 Comparative Example 2 16.7 70.1 Comparative Example 3 15.4 82.3 Comparative Example 4 29.2 60.2 Comparative Example 5 20.5 67.6

[0139] Test example 2

[0140] This test example is used to determine the physicochemical properties of a non-asphalt-based pre-paved waterproofing membrane containing the non-asphalt-based binder described above.

[0141] The non-asphalt-based adhesive material obtained above is respectively discharged on a strong cross film to form a double-sided material with a thickness of about 1.5 mm, and then the upper and lower surfaces are covered with reactive sand and a release film. After firm pressing, the non-asphalt-based pre-laid waterproofing membrane is obtained, which is named C1, C2, C3, C4, C5, D-C1, D-C2, D-C3, D-C4 and D-C5 in sequence.

[0142] The low-temperature flexibility limit temperature, heat aging 14-day low-temperature limit temperature and peel strength performance of the post-poured concrete of the non-asphalt-based pre-laid waterproofing membrane obtained above are tested according to the standard test of T / CECS10197-2022 polymer film-based pre-laid waterproofing membrane. The test results are shown in Table 3.

[0143] Table 3

[0144]

[0145] As can be seen from the results in Tables 2 and 3, the non-asphalt-based adhesive material provided by the present application has a low volatile VOC content and excellent antibacterial performance. The non-asphalt-based pre-laid waterproofing membrane provided by the present application has excellent bonding performance and aging resistance, and also has the advantages of green environmental protection.

[0146] The preferred embodiments of the present application are described in detail above, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, including the combination of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as disclosed by the present application and fall within the protection scope of the present application.

Claims

1. A method for preparing modified illite, characterized in that, The method includes: (1) The raw material illite is first contacted with a diamine reagent to obtain intermediate I; the concentration of the diamine reagent is 0.4-0.6 mol / L; the diamine reagent is selected from at least one of ethylenediamine, 1,2-propanediamine and 1,3-propanediamine; (2) The intermediate I is brought into a second contact with the modified solution to obtain the modified illite; the modified solution contains a long-chain alkyl quaternary ammonium salt with a concentration of 0.1-0.5 mol / L; the long-chain alkyl quaternary ammonium salt is selected from at least one of hexadecyltrimethylammonium bromide, hexadecyltrimethylammonium chloride and dodecyltrimethylammonium bromide.

2. The method according to claim 1, wherein, The water content of the raw material illite is not higher than 2 wt%, and the average diameter of the raw material illite is 20-150 μm; And / or, the conditions for the first contact and the second contact are each independently selected from: a temperature of 70-90°C, a time of 4-8 hours, and a rotation speed of 60-300 rpm.

3. Modified illite prepared by the method according to claim 1 or 2.

4. A composition for a non-asphalt-based adhesive, characterized in that, The composition comprises a main agent and an auxiliary agent, wherein the main agent is a base oil, a tackifying resin, a polymer modifier, and a modified filler; Relative to 100 parts by weight of the modified filler, the content of the base oil is 100-250 parts by weight, the content of the tackifying resin is 50-100 parts by weight, and the content of the polymer modifier is 30-80 parts by weight. 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; The modified filler is the modified illite as described in claim 3.

5. The composition according to claim 4, wherein, The polymer modifier is a combination of styrene-butadiene-styrene triblock copolymer, styrene-butadiene rubber and styrene-isoprene-styrene triblock copolymer in a weight ratio of 1.5-2:1.2-1.5:

1. And / or, the base oil is selected from at least one of aromatic oils, naphthenic oils, and anti-linear oils; And / or, the tackifying resin is selected from at least one of C5 petroleum resin, C9 petroleum resin, coumarone resin, rosin resin and terpene resin.

6. The composition according to claim 4, wherein, The additives include coupling agents, waxes, and pigments. Relative to 100 parts by weight of the modified filler, the content of the coupling agent is 0.5-1.5 parts by weight, the content of the waxes is 3-15 parts by weight, and the content of the pigments is 5-15 parts by weight.

7. The composition according to claim 6, wherein, In the adjuvant, the coupling agent is selected from γ-(2,3-epoxypropoxy)propyltrimethoxysilane and / or γ-methacryloyloxypropyltrimethoxysilane; And / or, the wax substance is selected from at least one of PE wax, PP 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-asphalt-based adhesive, characterized in that, The method is carried out using each component of the composition according to any one of claims 4-7, and the method includes: stirring and mixing each component of the composition to obtain the non-asphalt-based adhesive.

9. The method according to claim 8, wherein, The mixing conditions include a temperature of 160-180℃ and a time of 5-8 hours.

10. The non-asphalt-based adhesive prepared by the method according to claim 8 or 9.

11. A non-bitumen-based pre-laid waterproof membrane, characterized in that, The non-asphalt-based pre-laid waterproof membrane includes reactive sand, a non-asphalt-based adhesive layer, a high-strength cross-linked membrane, and a release membrane, wherein the non-asphalt-based adhesive layer is formed from the non-asphalt-based adhesive as described in claim 10.

12. The waterproof membrane according to claim 11, wherein, The average diameter of the reaction sand is 400-800 μm; And / or, the high-strength cross-linked membrane is a four-layer laminated high-strength cross-linked membrane with an average thickness of 190-320 μm; And / or, the release film is selected from silicone-coated PE release film and / or PET release film.

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