Occlusal overlapping polymer waterproof material and preparation method thereof

Abstract

The present invention relates to the technical field of waterproof materials, and proposes an interlocking overlapping polymer waterproof material and a preparation method thereof. The interlocking overlapping polymer waterproof material has an insertion gap on one side, and comprises, from top to bottom, a first isolation membrane, a first modified asphalt adhesive layer, a polymer membrane base, a second modified asphalt adhesive layer, a polyester base, a third modified asphalt adhesive layer, and a second isolation membrane; further comprising a third isolation membrane attached to the outer wall of the insertion gap, and a fourth isolation membrane attached to the inner wall of the insertion gap; the raw materials of the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer include 30-40 parts of asphalt, 1-3 parts of carboxylated styrene-butadiene rubber, 5-10 parts of SBS, 2-5 parts of tackifier, 3-8 parts of plasticizer, 0.2-1 part of antioxidant, 30-50 parts of filler, and 1-10 parts of dihydrazide compound. The invention solves the problem of poor tensile properties and easy leakage at the opening of the polymer waterproof material in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproof materials, and in particular to an interlocking overlapping polymer waterproof material and a preparation method thereof. Background Art

[0002] Polymer waterproof materials refer to various waterproof products made of synthetic rubber and synthetic resin as basic components. They have many advantages such as long service life, good technical performance, cold construction, and low pollution. They are a kind of building waterproof material developed in recent years. They are widely used in waterproofing of roofs, underground and structures. To meet the requirements of waterproofing projects, they must have good tensile properties, but traditional polymer waterproof materials have the problem of poor tensile properties. At the same time, after the construction of polymer waterproof materials, the overlapping edges are prone to wrinkles and warping, which makes the openings easy to leak, thus limiting their development. Summary of the Invention

[0003] The present invention provides an interlocking overlapping polymer waterproof material and a preparation method thereof, which solves the problems in the related art that the polymer waterproof material has poor tensile properties and is prone to leakage at the openings.

[0004] The technical solutions of the present invention are as follows:

[0005] A bite-type overlapping polymer waterproof material, wherein one side of the polymer waterproof material has an insertion gap, and the insertion gap is used for inserting the other side of another polymer waterproof material;

[0006] The polymer waterproof material includes, from top to bottom, a first isolation membrane, a first modified asphalt adhesive layer, a polymer membrane base, a second modified asphalt adhesive layer, a polyester base, a third modified asphalt adhesive layer, and a second isolation membrane; and further includes a third isolation membrane and a fourth isolation membrane, wherein the third isolation membrane is attached to the outer wall of the insertion gap, and the fourth isolation membrane is attached to the inner wall of the insertion gap;

[0007] The raw materials of the first modified asphalt adhesive layer, the second modified asphalt adhesive layer and the third modified asphalt adhesive layer independently include the following components in parts by mass: 30-40 parts of asphalt, 1-3 parts of carboxylated styrene-butadiene rubber, 5-10 parts of SBS, 2-5 parts of tackifier, 3-8 parts of plasticizer, 0.2-1 part of antioxidant, 30-50 parts of filler, and 1-10 parts of dihydrazide compound.

[0008] SBS is a styrene-butadiene-styrene block copolymer.

[0009] As a further technical solution, the first isolation film, the second isolation film, the third isolation film and the fourth isolation film each independently include one of PP film and PE film.

[0010] As a further technical solution, the polyester tire base is a long-fiber polyester tire with a gram weight of 150~310g / m 2 , more preferably 180~260g / m 2 .

[0011] As a further technical solution, the insertion gap is located inside the second modified asphalt adhesive layer.

[0012] As a further technical solution, the mass ratio of the asphalt to the dihydrazide compound is 35:3~8.

[0013] As a further technical solution, the dihydrazide compound includes one or more of azelaic acid dihydrazide, malonic acid dihydrazide, and succinic acid dihydrazide.

[0014] As a further technical solution, the invention further comprises 1 to 5 parts of epoxidized natural rubber.

[0015] The present invention further improves the tensile properties of the polymer waterproof material by adding epoxidized natural rubber. The reason is that the epoxidized natural rubber can react with asphalt to form a polymer network structure, thereby improving the tensile properties of the polymer waterproof material.

[0016] As a further technical solution, the mass ratio of the asphalt to the epoxidized natural rubber is 35:3.

[0017] As a further technical solution, the epoxidation degree of the epoxidized natural rubber is 25 mol% to 50 mol%.

[0018] The present invention limits the epoxidation degree of the epoxidized natural rubber to 25 mol% to 50 mol%, thereby further improving the tensile properties of the polymer waterproof material.

[0019] As a further technical solution, the plasticizer includes one or both of dibutyl phthalate and dioctyl phthalate;

[0020] The tackifier includes one or both of petroleum resin and rosin resin;

[0021] The antioxidant includes one or both of antioxidant 1010 and antioxidant 168;

[0022] The filler includes one or both of talc powder and heavy calcium powder.

[0023] As a further technical solution, the polymer film base is a polyethylene terephthalate film base.

[0024] The present invention also provides a method for preparing a bite-type overlapping polymer waterproof material, comprising the following steps:

[0025] S1, prepare the first separator, polymer membrane base, third separator, fourth separator, polyester base and second separator from top to bottom;

[0026] S2. Heat the asphalt to 180-190°C, mix it evenly with the other components, and then apply it between the first isolation membrane and the polymer membrane base, between the polymer membrane base and the third isolation membrane, between the fourth isolation membrane and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation membrane, respectively. Roll the asphalt to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain a bite-type overlapping polymer waterproof material.

[0027] As a further technical solution, the mixture is mixed uniformly in step S2 and then cooled to 140-150°C.

[0028] The working principle and beneficial effects of the present invention are:

[0029] 1. The present invention provides an insertion gap on one side of the polymer waterproof material for inserting another polymer waterproof material on the other side, thereby achieving a bite-type overlap and solving the problem of wrinkles and warping on the overlap edge after the construction of the polymer waterproof material, which leads to leakage at the opening.

[0030] 2. The dihydrazide compounds of the present invention improve the tensile properties of polymer waterproof materials. This is because the hydrazide groups in the dihydrazide compounds can react with the carbonyl groups in asphalt to form chemical bonds, thereby improving the tensile properties of the polymer waterproof material.

[0031] 3. The present invention limits the mass ratio of asphalt to dihydrazide compounds to 35:3~8, further improving the tensile properties of the polymer waterproof material. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Figure 1 It is a schematic diagram of the structure of the present invention;

[0034] In the figure: 1 is the first isolation membrane, 2 is the first modified asphalt adhesive layer, 3 is the polymer membrane base, 4 is the second modified asphalt adhesive layer, 5 is the polyester base, 6 is the third modified asphalt adhesive layer, 7 is the second isolation membrane, 8 is the third isolation membrane, and 9 is the fourth isolation membrane. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] In the following examples and comparative examples, the carboxylated styrene butadiene rubber is an ultrafine powder of carboxylated styrene butadiene rubber, brand Narpow VP201, purchased from Beijing Beihuayan Company, affiliated to Beijing Research Institute of Chemical Industry of Sinopec Corporation.

[0037] The talc powder contains 60wt% silicon dioxide and 15wt% magnesium oxide, with a particle size of 400 mesh.

[0038] Heavy calcium carbonate powder is a 400-mesh heavy calcium carbonate powder.

[0039] Example 1

[0040] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0041] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, and 1 part of malonic acid hydrazide, cool to 145°C, and introduce the mixture into the calendering rolls through a pump and coat the mixture between the first separator and the polymer membrane base, between the polymer membrane base and the third separator, between the fourth separator and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second separator, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence, thereby obtaining a bite-type overlapping polymer waterproof material, such as Figure 1 shown.

[0042] Example 2

[0043] S1, prepare 0.15mm thick PE film as the first isolation film, 0.1mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PP film as the third isolation film, 0.15mm thick PP film as the fourth isolation film, and the gram weight is 260g / m 2The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0044] S2. Heat 30 parts of 90# asphalt to 180°C, mix evenly with 1 part of carboxylated styrene-butadiene rubber, 5 parts of SBS 4452, 2 parts of 424 rosin resin, 3 parts of dioctyl phthalate, 0.2 parts of antioxidant 168, 30 parts of heavy calcium powder, and 1 part of succinic acid dihydrazide, cool to 140°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0045] Example 3

[0046] S1, prepare 0.15mm thick PP film as the first isolation film, 0.5mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 310g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PP film is used as the second isolation membrane;

[0047] S2. Heat 40 parts of 90# asphalt to 190°C, mix evenly with 3 parts of carboxylated styrene-butadiene rubber, 10 parts of SBS 4452, 2 parts of 424 rosin resin, 3 parts of petroleum resin C9, 8 parts of dioctyl phthalate, 1 part of antioxidant 168, 30 parts of heavy calcium powder, 20 parts of talc, and 1 part of azelaic acid dihydrazide, cool to 150°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0048] Example 4

[0049] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0050] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, and 3 parts of malonic dihydrazide, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0051] Example 5

[0052] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0053] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, and 5 parts of malonic dihydrazide, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0054] Example 6

[0055] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0056] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, and 8 parts of malonic dihydrazide, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0057] Example 7

[0058] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0059] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, and 10 parts of malonic dihydrazide, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0060] Example 8

[0061] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0062] S2. Heat 35 parts of 90# asphalt to 185°C, mix them evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 1 part of epoxidized natural rubber with an epoxidation degree of 10 mol%, cool the mixture to 145°C, and introduce the mixture into the calendering rollers through a pump, and coat them respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain a bite-type overlapping polymer waterproof material.

[0063] Example 9

[0064] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0065] S2. Heat 35 parts of 90# asphalt to 185°C, mix them evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 3 parts of epoxidized natural rubber with an epoxidation degree of 10 mol%, cool them to 145°C, and introduce them into the calendering rollers through a pump to cover them between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender them to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain a bite-type overlapping polymer waterproof material.

[0066] Example 10

[0067] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0068] S2. Heat 35 parts of 90# asphalt to 185°C, mix them evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 5 parts of epoxidized natural rubber with an epoxidation degree of 10 mol%, cool them to 145°C, and introduce them into the calendering rollers through a pump to cover them between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender them to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0069] Example 11

[0070] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0071] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 3 parts of epoxidized natural rubber with an epoxidation degree of 25 mol%, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0072] Example 12

[0073] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0074] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 3 parts of epoxidized natural rubber with an epoxidation degree of 50 mol%, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0075] Example 13

[0076] S1, prepare 0.15mm thick PE film as the first isolation film, 0.3mm thick polyethylene terephthalate film as the polymer film base, 0.15mm thick PE film as the third isolation film, 0.15mm thick PE film as the fourth isolation film, and the gram weight is 200g / m 2 The long-fiber polyester tire is used as the polyester tire base and the 0.15mm thick PE film is used as the second isolation membrane;

[0077] S2. Heat 35 parts of 90# asphalt to 185°C, mix evenly with 2 parts of carboxylated styrene-butadiene rubber, 8 parts of SBS 4452, 93.5 parts of petroleum resin C, 5 parts of dibutyl phthalate, 0.6 parts of antioxidant 1010, 40 parts of talc, 5 parts of malonic dihydrazide, and 3 parts of epoxidized natural rubber with an epoxidation degree of 75 mol%, cool to 145°C, and introduce into the calendering rollers through a pump to cover respectively between the first isolation film and the polymer membrane base, between the polymer membrane base and the third isolation film, between the fourth isolation film and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation film, and calender to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain the bite-type overlapping polymer waterproof material.

[0078] Comparative Example 1

[0079] The only difference from Example 1 is that malonyl hydrazide is not added.

[0080] The waterproof membranes obtained in Examples 1 to 13 and Comparative Example 1 were tested for tensile properties according to the method in GB / T 35467-2017 “Wet-laid waterproof membranes”. The test results are recorded in Table 1.

[0081] Table 1 Tensile properties of polymer waterproof materials

[0082]

[0083] As can be seen from Table 1, the maximum longitudinal tensile force of the polymer waterproof material provided by the present invention is above 1269 N / 50 mm, and the maximum transverse tensile force is above 1397 N / 50 mm, and has good tensile properties.

[0084] Compared with Comparative Example 1, Example 1 adds malonic dihydrazide, while Comparative Example 1 does not add malonic dihydrazide. The maximum longitudinal tensile force and the maximum transverse tensile force of the polymer waterproof material obtained in Example 1 are greater than those in Comparative Example 1, indicating that the addition of malonic dihydrazide can improve the tensile properties of the polymer waterproof material.

[0085] Compared with Examples 4 to 7, in Example 1, the mass ratio of asphalt to dihydrazide compounds is 35:1, the mass ratio of asphalt to dihydrazide compounds in Example 4 is 35:3, the mass ratio of asphalt to dihydrazide compounds in Example 5 is 35:5, the mass ratio of asphalt to dihydrazide compounds in Example 6 is 35:8, and the mass ratio of asphalt to dihydrazide compounds in Example 7 is 35:10. The maximum longitudinal tensile force and the maximum transverse tensile force of the polymer waterproof material obtained in Examples 4 to 6 are higher than those in Example 1 and Example 7, indicating that the mass ratio of asphalt to dihydrazide compounds of 35:3 to 8 can further improve the tensile properties of the polymer waterproof material.

[0086] Compared with Examples 8 to 10, Example 5 does not add epoxidized natural rubber, while Examples 8 to 10 add epoxidized natural rubber. The maximum longitudinal tensile force and the maximum transverse tensile force of the polymer waterproof material obtained in Examples 8 to 10 are better than those in Example 5, indicating that the addition of epoxidized natural rubber can further improve the tensile properties of the polymer waterproof material.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Occlusal overlapping polymer waterproof material, characterized in that: One side of the polymer waterproof material has an insertion gap, and the insertion gap is used for inserting the other side of another polymer waterproof material; The polymer waterproof material comprises, from top to bottom, a first isolation membrane, a first modified asphalt adhesive layer, a polymer membrane base, a second modified asphalt adhesive layer, a polyester base, a third modified asphalt adhesive layer, and a second isolation membrane; further comprising a third isolation membrane and a fourth isolation membrane, wherein the third isolation membrane is attached to the outer wall of the insertion gap, and the fourth isolation membrane is attached to the inner wall of the insertion gap; the insertion gap is located inside the second modified asphalt adhesive layer; The raw materials of the first modified asphalt adhesive layer, the second modified asphalt adhesive layer and the third modified asphalt adhesive layer independently include the following components in parts by mass: 30-40 parts of asphalt, 1-3 parts of carboxylated styrene-butadiene rubber, 5-10 parts of SBS, 2-5 parts of tackifier, 3-8 parts of plasticizer, 0.2-1 part of antioxidant, 30-50 parts of filler, 1-10 parts of dihydrazide compound, and 1-5 parts of epoxidized natural rubber; the dihydrazide compound includes one or more of azelaic acid dihydrazide, malonic dihydrazide, and succinic acid dihydrazide.

2. The bite-type overlapping polymer waterproof material according to claim 1, characterized in that: The first isolation film, the second isolation film, the third isolation film and the fourth isolation film each independently include one of a PP film and a PE film.

3. The bite-type overlapping polymer waterproof material according to claim 1, characterized in that: The mass ratio of the asphalt to the dihydrazide compound is 35:3-8.

4. The bite-type overlapping polymer waterproof material according to claim 1, characterized in that: The mass ratio of the asphalt to the epoxidized natural rubber is 35:

3.

5. The bite-type overlapping polymer waterproof material according to claim 1, characterized in that: The epoxidation degree of the epoxidized natural rubber is 25 mol% to 50 mol%.

6. The method for preparing the interlocking overlapping polymer waterproof material according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, prepare the first separator, polymer membrane base, third separator, fourth separator, polyester base and second separator from top to bottom; S2. Heat the asphalt to 180-190°C, mix it evenly with the other components, and then apply it between the first isolation membrane and the polymer membrane base, between the polymer membrane base and the third isolation membrane, between the fourth isolation membrane and the polyester base, between the polymer membrane base and the polyester base, and between the polyester base and the second isolation membrane, respectively. Roll the asphalt to obtain the first modified asphalt adhesive layer, the second modified asphalt adhesive layer, and the third modified asphalt adhesive layer in sequence to obtain a bite-type overlapping polymer waterproof material.

7. The method for preparing the interlocking overlapping polymer waterproof material according to claim 6, characterized in that: After uniform mixing in step S2, the temperature is lowered to 140-150°C.

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