A slate surface waterproofing membrane for passive houses

Abstract

The present invention relates to the technical field of waterproof building materials, and provides a slate surface waterproof coiled material for a passive house, which comprises, from top to bottom in sequence: a first protective layer, a slate layer, a first modified asphalt layer, a base ply, a second modified asphalt layer, and a second protective layer. The first modified asphalt layer and the second modified asphalt layer each independently comprise raw materials in the following parts by weight: 70-80 parts of asphalt, 15-21 parts of SBS, 8-15 parts of a softening agent, 6-10 parts of a first polyetherimide, and 30-40 parts of a filler; the slate layer comprises raw materials in the following parts by weight: 80-90 parts of mineral aggregate, 0.3-0.5 part of a surfactant, 1-2 parts of mineral oil, 8-15 parts of epoxy resin, and 1-5 parts of a second polyetherimide. Through the above technical solution, the problems of poor adhesion and mechanical properties of the slate surface waterproof coiled material in the related art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproof building materials, and specifically, to a slate surface waterproof coiled material for passive houses. Background Art

[0002] With the increasing global emphasis on energy efficiency and environmental protection, passive houses, as a low-energy building model, have been widely developed. Passive houses minimize energy consumption through the adoption of efficient insulation, heat insulation, and sealing technologies, achieving a comfortable indoor living environment. In the construction of passive houses, waterproofing is a key link because any water penetration may damage the building's insulation performance and structural integrity, thereby affecting the energy-saving effect and service life of passive houses. However, ordinary waterproof coiled materials have poor anti-aging and corrosion resistance. By setting a layer of slate on the outside of the waterproof coiled material, the durability of the waterproof coiled material can be improved, further enhancing the service life of passive houses. However, due to the different material properties of the slate layer and the waterproof coiled material, when the temperature changes significantly, the adhesion between the slate layer and the coiled material will deteriorate, resulting in a decline in the mechanical properties of the waterproof coiled material. Therefore, developing a slate surface waterproof coiled material with good adhesion and high mechanical properties is a problem that needs to be solved currently. Summary of the Invention

[0003] The present invention provides a slate surface waterproof coiled material for passive houses, which solves the problems of poor adhesion and mechanical properties of slate surface waterproof coiled materials in related technologies.

[0004] The technical solution of the present invention is as follows:

[0005] The present invention provides a slate surface waterproof coiled material for passive houses, which from top to bottom comprises: a first protective layer, a slate layer, a first modified asphalt layer, a base layer, a second modified asphalt layer, and a second protective layer. The first modified asphalt layer and the second modified asphalt layer each independently comprise raw materials with the following weight parts: 70 - 80 parts of asphalt, 15 - 21 parts of SBS, 8 - 15 parts of softening agent, 6 - 10 parts of a first polyetherimide, and 30 - 40 parts of filler; the slate layer comprises raw materials with the following weight parts: 80 - 90 parts of mineral aggregate, 0.3 - 0.5 parts of surfactant, 1 - 2 parts of mineral oil, 8 - 15 parts of epoxy resin, and 1 - 6 parts of a second polyetherimide.

[0006] As a further technical solution, the melt index of the first polyetherimide and the second polyetherimide is each independently 5 - 9 g / 10min@337°C / 6.6 kg.

[0007] In the present invention, by defining that the melt index of the first polyetherimide and the second polyetherimide is each independently 5 - 9 g / 10min@337°C / 6.6 kg, the mechanical properties of the waterproof coiled material and the adhesion of the slate layer are further improved.

[0008] As a further technical solution, the melt index of the first polyetherimide is 9 g / 10 min @ 337 °C / 6.6 kg, and the melt index of the second polyetherimide is 5 g / 10 min @ 337 °C / 6.6 kg.

[0009] In the present invention, by defining that the melt index of the first polyetherimide is 9 g / 10 min @ 337 °C / 6.6 kg and the melt index of the second polyetherimide is 5 g / 10 min @ 337 °C / 6.6 kg, the mechanical properties of the waterproof coil and the adhesiveness of the plate layer are further improved.

[0010] As a further technical solution, the mass ratio of the epoxy resin to the second polyetherimide is 3 - 5:1.

[0011] In the present invention, by defining that the mass ratio of the epoxy resin to the second polyetherimide is 3 - 5:1, the adhesiveness of the plate layer is further improved.

[0012] As a further technical solution, the mass ratio of the epoxy resin to the second polyetherimide is 4:1.

[0013] As a further technical solution, the mineral aggregate includes aggregate and fines.

[0014] As a further technical solution, the aggregate is shale flakes and the fines is talcum powder.

[0015] As a further technical solution, the mass ratio of the aggregate to the fines is 2 - 3:1.

[0016] As a further technical solution, the softening agent includes one or both of naphthenic oil and aromatic oil.

[0017] As a further technical solution, the filler includes one or both of carbon black and light calcium carbonate.

[0018] As a further technical solution, the surfactant is a silane coupling agent.

[0019] As a further technical solution, the silane coupling agent is silane coupling agent KH-550.

[0020] As a further technical solution, the base ply is one of polyester tire and fiberglass-reinforced polyester tire.

[0021] As a further technical solution, both the first protective layer and the second protective layer are PE films.

[0022] As a further technical solution, the thickness of the PE film is 0.03 - 0.045 mm.

[0023] As a further technical solution, the thickness of the tire base layer is 1 mm, the thicknesses of the first modified asphalt layer and the second modified asphalt layer are each independently 1 - 1.3 mm, and the thickness of the slate layer is 0.6 - 1 mm.

[0024] The present invention also provides a method for preparing a slate surface waterproof coil for a passive house, comprising the following steps:

[0025] S1. Mix asphalt, SBS, softening agent, first polyetherimide, and filler and melt them, and then coat them on both upper and lower surfaces of the tire base layer respectively to obtain the first modified asphalt layer and the second modified asphalt layer;

[0026] S2. Mix mineral aggregate, surfactant, mineral oil, epoxy resin, and second polyetherimide, dry them, and lay them on the first modified asphalt layer to obtain the slate layer;

[0027] S3. Lay a first protective layer on the slate layer, lay a second protective layer on the second modified asphalt layer, cool down and wind up to obtain the slate surface waterproof coil.

[0028] The present invention also provides an application of the slate surface waterproof coil prepared by the method for preparing a slate surface waterproof coil for a passive house in a passive house.

[0029] The working principle and beneficial effects of the present invention are as follows:

[0030] In the present invention, by providing a slate layer as an isolation layer on the asphalt layer, the anti-aging and corrosion resistance of the asphalt are improved. By adding polyetherimide to the asphalt layer and the slate layer, the adhesion of the slate layer and the mechanical properties of the waterproof coil are further improved, solving the problems of poor adhesion and mechanical properties of the slate surface waterproof coil. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present invention.

[0032] In the following embodiments and comparative examples:

[0033] Polyetherimide, model: 2300, melt index: 5 g / 10 min @ 337 °C / 6.6 kg, model: 1000V, melt index: 9 g / 10 min @ 337 °C / 6.6 kg; asphalt, model: 70# asphalt; SBS, model: D1101 JO; naphthenic oil, model: KN4010; aromatic oil, aromatic content: 80% - 85%; mineral oil, white mineral oil 5#; epoxy resin, model: E44; the particle size of shale flakes is 1 - 2 mm, and the particle size of talcum powder is 200 mesh; polyester tire, thickness: 1 mm; fiberglass-reinforced polyester tire, thickness: 1 mm.

[0034] Example 1

[0035] A preparation method of a slate-faced waterproof coiled material for a passive house, comprising the following steps:

[0036] S1. Mix 70 parts of asphalt, 15 parts of SBS, 8 parts of naphthenic oil, 6 parts of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg), and 30 parts of carbon black, melt them, and coat them on the upper and lower surfaces of the polyester tire respectively to obtain a first modified asphalt layer with a thickness of 1 mm and a second modified asphalt layer with a thickness of 1.1 mm;

[0037] S2. Mix 80 parts of mineral aggregate, 0.3 part of silane coupling agent KH-550, 1 part of mineral oil, 11 parts of epoxy resin, and 1 part of polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg), dry them, and lay them on the first modified asphalt layer to obtain a slate layer with a thickness of 1 mm;

[0038] S3. Lay a PE film with a thickness of 0.03 mm on the slate layer, lay a PE film with a thickness of 0.03 mm on the second modified asphalt layer, cool down and wind up to obtain a slate-faced waterproof coiled material.

[0039] The mineral aggregate is shale flakes and talcum powder with a mass ratio of 2:1.

[0040] Example 2

[0041] A preparation method of a slate-faced waterproof coiled material for a passive house, comprising the following steps:

[0042] S1. Mix 75 parts of asphalt, 18 parts of SBS, 12 parts of aromatic oil, 8 parts of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg), and 35 parts of light calcium carbonate, melt them, and coat them on the upper and lower surfaces of the fiberglass-reinforced polyester tire respectively to obtain a first modified asphalt layer with a thickness of 1.2 mm and a second modified asphalt layer with a thickness of 1.3 mm;

[0043] S2. Mix 85 parts of mineral aggregate, 0.4 part of silane coupling agent KH-550, 1 part of mineral oil, 8 parts of epoxy resin, and 6 parts of polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg), dry them, and lay them on the first modified asphalt layer to obtain a slate layer with a thickness of 0.6 mm;

[0044] S3. Lay a PE film with a thickness of 0.45 mm on the slate layer and a PE film with a thickness of 0.45 mm on the second modified asphalt layer, cool down and wind up to obtain a waterproof slate surface roll.

[0045] The mineral aggregate is shale flakes and talcum powder with a mass ratio of 3:1.

[0046] Example 3

[0047] A method for preparing a waterproof slate surface roll for a passive house, comprising the following steps:

[0048] S1. Mix 80 parts of asphalt, 21 parts of SBS, 15 parts of aromatic oil, 10 parts of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg), and 40 parts of light calcium carbonate, melt them, and coat them on the upper and lower surfaces of a fiberglass-reinforced polyester carcass respectively to obtain a first modified asphalt layer with a thickness of 1.3 mm and a second modified asphalt layer with a thickness of 1 mm;

[0049] S2. Mix 90 parts of mineral aggregate, 0.5 part of silane coupling agent KH-550, 2 parts of mineral oil, 15 parts of epoxy resin, and 2 parts of polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg), dry them, and lay them on the first modified asphalt layer to obtain a slate layer with a thickness of 0.8 mm;

[0050] S3. Lay a PE film with a thickness of 0.45 mm on the slate layer and a PE film with a thickness of 0.45 mm on the second modified asphalt layer, cool down and wind up to obtain a waterproof slate surface roll.

[0051] The mineral aggregate is shale flakes and talcum powder with a mass ratio of 3:1.

[0052] Example 4

[0053] This example is different from Example 1 only in that polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) in step S1 is replaced with an equal amount of polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg).

[0054] Example 5

[0055] This embodiment is different from Embodiment 1 only in that the polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg) in step S2 is replaced with an equal amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg).

[0056] Example 6

[0057] This embodiment is different from Embodiment 1 only in that the polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) in step S1 is replaced with an equal amount of polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg), and the polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg) in step S2 is replaced with an equal amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg).

[0058] Example 7

[0059] This embodiment is different from Embodiment 6 only in that the addition amount of epoxy resin is 8 parts, and the addition amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is 4 parts.

[0060] Example 8

[0061] This embodiment is different from Embodiment 6 only in that the addition amount of epoxy resin is 9 parts, and the addition amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is 3 parts.

[0062] Example 9

[0063] This embodiment is different from Embodiment 6 only in that the addition amount of epoxy resin is 9.6 parts, and the addition amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is 2.4 parts.

[0064] Example 10

[0065] This embodiment is different from Embodiment 6 only in that the addition amount of epoxy resin is 10 parts, and the addition amount of polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is 2 parts.

[0066] Comparative Example 1

[0067] This comparative example is different from Embodiment 1 only in that the polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is not added in step S1.

[0068] Comparative Example 2

[0069] This comparative example is different from Example 1 only in that in step S2, polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg) is not added.

[0070] Comparative Example 3

[0071] This comparative example is different from Example 1 only in that in step S1, polyetherimide 2300 (melt index: 5 g / 10 min @ 337 °C / 6.6 kg) is not added, and in step S2, polyetherimide 1000V (melt index: 9 g / 10 min @ 337 °C / 6.6 kg) is not added.

[0072] The elongation at break of the slate surface waterproof coiled materials prepared in Examples 1 to 10 and Comparative Examples 1 to 3 was measured respectively according to the test method in GB / T 328.8-2007 "Test Methods for Building Waterproofing Membranes - Part 8: Bituminous Waterproofing Membranes - Tensile Properties", and the amount of particle shedding was measured according to Method B in GB / T 328.17-2007 "Test Methods for Building Waterproofing Membranes - Part 17: Bituminous Waterproofing Membranes - Mineral Adhesion". The test results are shown in Table 1.

[0073] Table 1 Performance Test Results of Slate Surface Waterproof Coiled Materials

[0074]

[0075] Compared with Example 1, polyetherimide is not added to the modified asphalt layer in Comparative Example 1, polyetherimide is not added to the slate layer in Comparative Example 2, and polyetherimide is not added to both the modified asphalt layer and the slate layer in Comparative Example 3. As a result, the elongation at break of the slate surface waterproof coiled materials prepared in Comparative Examples 1 to 3 is lower than that of Example 1, and the amount of particle shedding is higher than that of Example 1, indicating that adding polyetherimide to both the modified asphalt layer and the slate layer can improve the mechanical properties and adhesion of the slate surface waterproof coiled materials.

[0076] Compared with Example 1, Examples 4 to 6 changed the melt index of polyetherimide in the modified asphalt layer and the slate layer. As a result, the elongation at break of the slate surface waterproof coiled materials prepared in Example 6 is higher than that of Example 1, and the amount of particle shedding is lower than that of Example 1, indicating that when the melt index of polyetherimide in the modified asphalt layer is 9 g / 10 min @ 337 °C / 6.6 kg and the melt index of polyetherimide in the slate surface is 5 g / 10 min @ 337 °C / 6.6 kg, the mechanical properties and adhesion of the slate surface waterproof coiled materials can be further improved.

[0077] Compared with Example 6, Examples 7 to 10 changed the mass ratio of epoxy resin and polyetherimide. As a result, the elongation at break of the slate surface waterproof coiled material prepared in Examples 8 to 10 was higher than that of Examples 6 and 7, and the amount of particle shedding was lower than that of Examples 6 and 7. This shows that when the mass ratio of epoxy resin and polyetherimide is 3 to 5:1, the mechanical properties and adhesion of the slate surface waterproof coiled material can be further improved. By comparing Examples 8 to 10, it was found that the elongation at break of the slate surface waterproof coiled material prepared in Example 9 was higher than that of Examples 8 and 10, and the amount of particle shedding was lower than that of Examples 8 and 10. This shows that when the mass ratio of epoxy resin and polyetherimide is 4:1, the slate surface waterproof coiled material obtained has the highest mechanical properties and the best adhesion.

[0078] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A slaty surface waterproof coiled material for a passive house, characterized in that, From top to bottom, they are: the first protective layer, the slate layer, the first modified asphalt layer, the base layer, the second modified asphalt layer, and the second protective layer. The first modified asphalt layer and the second modified asphalt layer each independently comprise raw materials with the following parts by weight: 70 - 80 parts of asphalt, 15 - 21 parts of SBS, 8 - 15 parts of softening agent, 6 - 10 parts of the first polyetherimide, and 30 - 40 parts of filler; the slate layer comprises raw materials with the following parts by weight: 80 - 90 parts of mineral aggregate, 0.3 - 0.5 parts of surfactant, 1 - 2 parts of mineral oil, 8 - 15 parts of epoxy resin, and 1 - 5 parts of the second polyetherimide; the melt index of the first polyetherimide is 9 g / 10min@337°C / 6.6 kg, and the melt index of the second polyetherimide is 5 g / 10min@337°C / 6.6 kg.

2. The slate surface waterproof coiled material for a passive house according to claim 1, wherein The mass ratio of the epoxy resin to the second polyetherimide is 3 - 5:

1.

3. The slate surface waterproof coiled material for a passive house according to claim 1, characterized in that, The base layer is one of polyester felt and fiberglass-reinforced polyester felt.

4. A slate surface waterproof coiled material for a passive house according to claim 1, characterized in that, The mineral aggregate includes aggregate and fines.

5. A slate surface waterproof coiled material for a passive house according to claim 4, characterized in that, The aggregate is shale flakes, and the fines are talcum powder.

6. A slate surface waterproofing coil for a passive house according to claim 4, characterized in that, The mass ratio of the aggregate to the fines is 2 - 3:

1.

7. A slate surface waterproof coiled material for a passive house according to claim 1, characterized in that, The softening agent includes one or both of naphthenic oil and aromatic oil.

8. A slate surface waterproof coiled material for a passive house according to claim 1, characterized in that, The filler includes one or both of carbon black and light calcium carbonate.

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