Slate surface waterproof coiled material for passive house

Abstract

The invention relates to the technical field of waterproof building materials, and provides a slate surface waterproof coiled material for a passive house, which sequentially comprises a first protective layer, a slate layer, a first modified asphalt layer, a tire base layer, a second modified asphalt layer and a second protective layer from top to bottom, the first modified asphalt layer and the second modified asphalt layer are respectively and independently prepared from the following raw materials in parts by weight: 70 to 80 parts of asphalt, 15 to 21 parts of SBS (Styrene Butadiene Styrene), 8 to 15 parts of softening agent, 6 to 10 parts of first polyetherimide and 30 to 40 parts of filler; the plate rock layer comprises the following raw materials in parts by weight: 80-90 parts of mineral aggregates, 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 second polyetherimide. According to the technical scheme, the problems of poor cohesiveness and mechanical property of the slate surface waterproof coiled material in the related technology are solved.

Description

Technical Field

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

[0002] With the increasing attention paid to energy efficiency and environmental protection around the world, passive houses have been widely developed as a low-energy building model. Passive houses minimize energy consumption and achieve a comfortable indoor living environment by adopting efficient thermal insulation, heat insulation and sealing technologies. In the construction of passive houses, waterproofing is a key link, because any water penetration may destroy the thermal insulation performance and structural integrity of the building, thereby affecting the energy saving effect and service life of the passive house. However, ordinary waterproof membranes have poor aging and corrosion resistance. Setting a slate layer on the outside of the waterproof membrane can improve the durability of the waterproof membrane and further improve the service life of the passive house; however, the material properties of the slate layer and the waterproof membrane are different. When the temperature changes greatly, the bonding force between the slate layer and the membrane will deteriorate, resulting in a decrease in the mechanical properties of the waterproof membrane. Therefore, the development of a slate surface waterproof membrane with good bonding and high mechanical properties is a problem that needs to be solved at present. Summary of the invention

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

[0004] The technical solution of the present invention is as follows: The present invention provides a slate surface waterproofing coiled material for a passive house, which comprises, from top to bottom, a first protective layer, a slate layer, a first modified asphalt layer, a tread 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 the following raw materials in parts by weight: 70-80 parts of asphalt, 15-21 parts of SBS, 8-15 parts of softener, 6-10 parts of first polyetherimide, and 30-40 parts of filler; the slate layer comprises the following raw materials in parts by weight: 80-90 parts of mineral granules, 0.3-0.5 parts of surfactant, 1-2 parts of mineral oil, 8-15 parts of epoxy resin, and 1-6 parts of second polyetherimide.

[0005] As a further technical solution, the melt index of the first polyetherimide and the second polyetherimide are independently 5-9 g / 10 min@337° C. / 6.6 kg.

[0006] In the present invention, the mechanical properties of the waterproof membrane and the adhesion of the slate layer are further improved by limiting the melt index of the first polyetherimide and the second polyetherimide to 5-9 g / 10 min@337° C. / 6.6 kg respectively.

[0007] 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.

[0008] In the present invention, by limiting the melt index of the first polyetherimide to 9g / 10min@337°C / 6.6kg and the melt index of the second polyetherimide to 5g / 10min@337°C / 6.6kg, the mechanical properties of the waterproof membrane and the adhesion of the slate layer are further improved.

[0009] As a further technical solution, the mass ratio of the epoxy resin to the second polyetherimide is 3-5:1.

[0010] In the present invention, by limiting the mass ratio of the epoxy resin to the second polyetherimide to 3-5:1, the adhesion of the slate layer is further improved.

[0011] As a further technical solution, the mass ratio of the epoxy resin to the second polyetherimide is 4:1.

[0012] As a further technical solution, the mineral granular material includes aggregates and fine materials.

[0013] As a further technical solution, the aggregate is shale flakes, and the fine material is talcum powder.

[0014] As a further technical solution, the mass ratio of the aggregate to the fine material is 2-3:1.

[0015] As a further technical solution, the softener includes one or both of cycloalkane oil and aromatic oil.

[0016] As a further technical solution, the filler includes one or both of carbon black and light calcium carbonate.

[0017] As a further technical solution, the surfactant is a silane coupling agent.

[0018] As a further technical solution, the silane coupling agent is silane coupling agent KH-550.

[0019] As a further technical solution, the tire base layer is one of a polyester tire and a glass fiber reinforced polyester tire.

[0020] As a further technical solution, the first protective layer and the second protective layer are both PE films.

[0021] As a further technical solution, the thickness of the PE film is 0.03~0.045mm.

[0022] As a further technical solution, the thickness of the tread base layer is 1 mm, the thickness 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.

[0023] The present invention also provides a method for preparing a slate surface waterproofing membrane for a passive house, comprising the following steps: S1, mixing asphalt, SBS, a softener, a first polyetherimide, and a filler, melting the mixture, and coating the mixture on the upper and lower surfaces of the tire base, respectively, to obtain a first modified asphalt layer and a second modified asphalt layer; S2, mixing the mineral granules, the surfactant, the mineral oil, the epoxy resin and the second polyetherimide, drying them, and laying them on the first modified asphalt layer to obtain a slate layer; S3, laying a first protective layer on the slate layer, laying a second protective layer on the second modified asphalt layer, cooling, and rolling up to obtain a slate surface waterproofing membrane.

[0024] The present invention also proposes a method for preparing a slate surface waterproofing coiled material for a passive house and application of the prepared slate surface waterproofing coiled material in a passive house.

[0025] The working principle and beneficial effects of the present invention are: In the present invention, a slate layer is provided on the asphalt layer as an isolation layer, thereby improving the anti-aging and corrosion resistance of the asphalt, and by adding polyetherimide to the asphalt layer and the slate layer, the adhesion of the slate layer and the mechanical properties of the waterproof membrane are further improved, thereby solving the problem of poor adhesion and mechanical properties of the waterproof membrane on the slate surface. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] In the following embodiments and comparative examples: Polyetherimide, model: 2300, melt index: 5g / 10min@337℃ / 6.6kg, model: 1000V, melt index: 9g / 10min@337℃ / 6.6kg; 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 1~2mm, and the particle size of talcum powder is 200 mesh; polyester tire, thickness: 1mm; glass fiber reinforced polyester tire, thickness: 1mm.

[0028] Example 1 A method for preparing a slate surface waterproofing roll for a passive house comprises the following steps: S1. Mix 70 parts of asphalt, 15 parts of SBS, 8 parts of naphthenic oil, 6 parts of polyetherimide 2300 (melt index: 5g / 10min@337℃ / 6.6kg), and 30 parts of carbon black, melt them, and apply them on the upper and lower surfaces of the polyester tire, respectively, to obtain a first modified asphalt layer with a thickness of 1mm and a second modified asphalt layer with a thickness of 1.1mm; S2, 80 parts of mineral granules, 0.3 parts 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) were mixed, dried, and laid on the first modified asphalt layer to obtain a slate layer with a thickness of 1 mm; 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 roll up to obtain a slate surface waterproofing membrane.

[0029] The mineral aggregate is shale flakes and talcum powder in a mass ratio of 2:1.

[0030] Example 2 A method for preparing a slate surface waterproofing roll for a passive house comprises the following steps: S1. Mix 75 parts of asphalt, 18 parts of SBS, 12 parts of aromatic oil, 8 parts of polyetherimide 2300 (melt index: 5g / 10min@337℃ / 6.6kg), and 35 parts of light calcium carbonate, melt them, and apply them on the upper and lower surfaces of the glass fiber reinforced polyester tire, respectively, to obtain a first modified asphalt layer with a thickness of 1.2mm and a second modified asphalt layer with a thickness of 1.3mm; S2, 85 parts of mineral granules, 0.4 parts 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) were mixed, dried, and laid on the first modified asphalt layer to obtain a slate layer with a thickness of 0.6 mm; S3. Lay a PE film with a thickness of 0.45 mm on the slate layer, lay a PE film with a thickness of 0.45 mm on the second modified asphalt layer, cool down, and roll up to obtain a slate surface waterproofing membrane.

[0031] The mineral aggregate is shale flakes and talcum powder in a mass ratio of 3:1.

[0032] Example 3 A method for preparing a slate surface waterproofing roll for a passive house comprises the following steps: S1. 80 parts of asphalt, 21 parts of SBS, 15 parts of aromatic oil, 10 parts of polyetherimide 2300 (melt index: 5g / 10min@337℃ / 6.6kg), and 40 parts of light calcium carbonate were mixed and melted, and coated on the upper and lower surfaces of the glass fiber reinforced polyester tire respectively to obtain a first modified asphalt layer with a thickness of 1.3mm and a second modified asphalt layer with a thickness of 1mm; S2, 90 parts of mineral granules, 0.5 parts 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) were mixed, dried, and laid on the first modified asphalt layer to obtain a slate layer with a thickness of 0.8 mm; S3. Lay a PE film with a thickness of 0.45 mm on the slate layer, lay a PE film with a thickness of 0.45 mm on the second modified asphalt layer, cool down, and roll up to obtain a slate surface waterproofing membrane.

[0033] The mineral aggregate is shale flakes and talcum powder in a mass ratio of 3:1.

[0034] Example 4 The only difference between this embodiment and embodiment 1 is that the polyetherimide 2300 (melt index: 5 g / 10 min@337°C / 6.6 kg) in step S1 is replaced by an equal amount of polyetherimide 1000V (melt index: 9 g / 10 min@337°C / 6.6 kg).

[0035] Example 5 The only difference between this embodiment and embodiment 1 is that the polyetherimide 1000V (melt index: 9 g / 10 min@337°C / 6.6 kg) in step S2 is replaced by an equal amount of polyetherimide 2300 (melt index: 5 g / 10 min@337°C / 6.6 kg).

[0036] Example 6 The only difference between this embodiment and Embodiment 1 is that the polyetherimide 2300 (melt index: 5 g / 10 min@337°C / 6.6 kg) in step S1 is replaced by 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 by an equal amount of polyetherimide 2300 (melt index: 5 g / 10 min@337°C / 6.6 kg).

[0037] Example 7 The only difference between this embodiment and embodiment 6 is that the added amount of epoxy resin is 8 parts, and the added amount of polyetherimide 2300 (melt index: 5 g / 10 min@337° C. / 6.6 kg) is 4 parts.

[0038] Example 8 The difference between this embodiment and embodiment 6 is that the added amount of epoxy resin is 9 parts and the added amount of polyetherimide 2300 (melt index: 5 g / 10 min@337° C. / 6.6 kg) is 3 parts.

[0039] Example 9 The only difference between this embodiment and embodiment 6 is that the added amount of epoxy resin is 9.6 parts, and the added amount of polyetherimide 2300 (melt index: 5 g / 10 min@337° C. / 6.6 kg) is 2.4 parts.

[0040] Example 10 The difference between this embodiment and embodiment 6 is that the added amount of epoxy resin is 10 parts, and the added amount of polyetherimide 2300 (melt index: 5 g / 10 min@337° C. / 6.6 kg) is 2 parts.

[0041] Comparative Example 1 The only difference between this comparative example and Example 1 is that polyetherimide 2300 (melt index: 5 g / 10 min@337° C. / 6.6 kg) is not added in step S1.

[0042] Comparative Example 2 The only difference between this comparative example and Example 1 is that polyetherimide 1000V (melt index: 9 g / 10 min@337° C. / 6.6 kg) is not added in step S2.

[0043] Comparative Example 3 The only difference between this comparative example and Example 1 is that polyetherimide 2300 (melt index: 5 g / 10 min@337°C / 6.6 kg) is not added in step S1, and polyetherimide 1000V (melt index: 9 g / 10 min@337°C / 6.6 kg) is not added in step S2.

[0044] The elongation at break of the slate surface waterproof membranes prepared in Examples 1 to 10 and Comparative Examples 1 to 3 was measured according to the test method in GB / T 328.8-2007 "Test methods for building waterproof membranes Part 8: Tensile properties of asphalt waterproof membranes", and the particle shedding amount was measured according to the B method in GB / T 328.17-2007 "Test methods for building waterproof membranes Part 17: Adhesion of mineral materials of asphalt waterproof membranes". The test results are shown in Table 1.

[0045] Table 1 Test results of slate surface waterproof membrane performance

[0046] Compared with Example 1, no polyetherimide is added to the modified asphalt layer in Comparative Example 1, no polyetherimide is added to the slate layer in Comparative Example 2, and no polyetherimide is 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 membrane prepared in Comparative Examples 1 to 3 is lower than that in Example 1, and the amount of particle shedding is higher than that in 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 membrane.

[0047] Compared with Example 1, Examples 4 to 6 change the melting index of polyetherimide in the modified asphalt layer and the slate layer. As a result, the elongation at break of the slate surface waterproof membrane prepared in Example 6 is higher than that in Example 1, and the amount of particle shedding is lower than that in Example 1, indicating that when the melting index of polyetherimide in the modified asphalt layer is 9g / 10min@337℃ / 6.6kg and the melting index of polyetherimide in the slate surface is 5g / 10min@337℃ / 6.6kg, the mechanical properties and adhesion of the slate surface waterproof membrane can be further improved.

[0048] Compared with Example 6, Examples 7 to 10 change the mass ratio of epoxy resin and polyetherimide. As a result, the elongation at break of the slate surface waterproof membrane prepared in Examples 8 to 10 is higher than that in Examples 6 and 7, and the amount of particle shedding is lower than that in Examples 6 and 7, indicating 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 membrane can be further improved; by comparing Examples 8 to 10, it is found that the elongation at break of the slate surface waterproof membrane prepared in Example 9 is higher than that in Examples 8 and 10, and the amount of particle shedding is lower than that in Examples 8 and 10, indicating that when the mass ratio of epoxy resin and polyetherimide is 4:1, the obtained slate surface waterproof membrane has the highest mechanical properties and the best adhesion.

[0049] 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 protection scope of the present invention.

Claims

1. A slate surface waterproofing membrane for passive houses, characterized in that: From top to bottom, they are: a first protective layer, a slate layer, a first modified asphalt layer, a tread 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 include the following raw materials in parts by weight: 70-80 parts of asphalt, 15-21 parts of SBS, 8-15 parts of softener, 6-10 parts of first polyetherimide, and 30-40 parts of filler; the slate layer includes the following raw materials in 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 second polyetherimide.

2. The slate surface waterproofing membrane for passive houses according to claim 1, characterized in that: The melt index of the first polyetherimide and the second polyetherimide are each independently 5-9 g / 10 min@337° C. / 6.6 kg.

3. The slate surface waterproofing membrane for passive houses according to claim 2, characterized in 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.

4. The slate surface waterproofing membrane for passive houses according to claim 1, characterized in that: The mass ratio of the epoxy resin to the second polyetherimide is 3-5:

1.

5. The slate surface waterproofing membrane for passive houses according to claim 1, characterized in that: The tire base layer is one of a polyester tire and a glass fiber reinforced polyester tire.

6. The slate surface waterproofing membrane for passive houses according to claim 1, characterized in that: The mineral aggregate includes aggregates and fines.

7. The slate surface waterproofing membrane for passive houses according to claim 6, characterized in that: The aggregate is shale flakes, and the fine material is talcum powder.

8. The slate surface waterproofing membrane for passive houses according to claim 6, characterized in that: The mass ratio of the aggregate to the fine material is 2-3:

1.

9. The slate surface waterproofing membrane for passive houses according to claim 1, characterized in that: The softener includes one or both of naphthenic oil and aromatic oil.

10. The slate surface waterproofing membrane for 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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