Self-adhesive asphalt waterproof coiled material for passive house

Abstract

The invention relates to the technical field of waterproof building materials, and provides a self-adhesive asphalt waterproof coiled material for a passive house, the self-adhesive asphalt waterproof coiled material sequentially comprises a protective film, an asphalt layer, a base layer, a self-adhesive glue layer and an isolating film from top to bottom, the asphalt layer comprises the following raw materials by weight: 60-70 parts of asphalt, 15-20 parts of SBS, 8-15 parts of a softener, 20-30 parts of modified mullite whisker, 5-10 parts of phenolic resin, and 1-3 parts of an antioxidant; the modified mullite whiskers are obtained by modifying mullite whiskers with a modifier. According to the technical scheme, the problem of poor mechanical property of the self-adhesive asphalt waterproof coiled material in related technologies is solved.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof building materials, and in particular to a self-adhesive asphalt waterproof coiled material for a passive house. Background Art

[0002] Passive house is a highly energy-saving and comfortable building concept. It achieves extremely low energy consumption through advanced architectural design and technical means, and almost no traditional heating and cooling systems are needed to maintain comfortable indoor temperature and humidity. In the construction of passive houses, waterproofing engineering is a crucial link. Self-adhesive waterproofing membrane has become one of the commonly used materials in the field of passive house waterproofing due to its advantages such as convenient construction, good bonding performance and reliable waterproofing effect. However, the self-adhesive waterproofing membrane currently used in passive houses still has some shortcomings in practical applications. Among them, the more prominent problem is that the mechanical properties need to be improved. Passive houses usually have higher requirements for the stability and durability of the building structure, and waterproofing membranes, as part of the building envelope, need to have good mechanical properties to withstand various external forces. If the mechanical properties of the waterproofing membrane are insufficient, cracking, deformation, peeling and other problems may occur, thereby destroying the integrity of the waterproofing system, causing water penetration, and affecting the energy-saving effect and service life of the passive house. Therefore, improving the mechanical properties of waterproofing membranes has become a problem that needs to be solved urgently. Summary of the invention

[0003] The present invention provides a self-adhesive asphalt waterproofing membrane for a passive house, which solves the problem of poor mechanical properties of the self-adhesive asphalt waterproofing membrane in the related art.

[0004] The technical solution of the present invention is as follows: The invention provides a self-adhesive asphalt waterproofing coiled material for a passive house, which comprises a protective film, an asphalt layer, a tread layer, a self-adhesive layer and an isolation film in order from top to bottom. The asphalt layer comprises the following raw materials in parts by weight: 60-70 parts of asphalt, 15-20 parts of SBS, 8-15 parts of softener, 20-30 parts of modified mullite whisker, 5-10 parts of phenolic resin and 1-3 parts of antioxidant; the modified mullite whisker is obtained by modifying mullite whisker with a modifier; the modifier comprises a silane coupling agent and a carboxyl-containing polymer; the mass ratio of the silane coupling agent to the carboxyl-containing polymer is 1:50-50:1.

[0005] As a further technical solution, the amount of the modifier added is 2% to 6% of the mass of the amination mullite whisker.

[0006] As a further technical solution, the carboxyl-containing polymer includes one or both of polyepoxysuccinic acid and carboxyl-terminated polycaprolactone.

[0007] As a further technical solution, the silane coupling agent is an aminosilane coupling agent.

[0008] As a further technical solution, the aminosilane coupling agent is 3-aminopropyltriethoxysilane.

[0009] As a further technical solution, the mass ratio of the silane coupling agent to the carboxyl-containing polymer is 3-5:1.

[0010] In the present invention, the mechanical properties of the self-adhesive asphalt waterproof membrane are further improved by limiting the mass ratio of the silane coupling agent to the carboxyl-containing polymer to 3-5:1.

[0011] As a further technical solution, the mass ratio of the silane coupling agent to the carboxyl-containing polymer is 4:1.

[0012] As a further technical solution, the method for preparing the modified mullite whisker comprises the following steps: dissolving a modifier in deionized water, adding mullite whiskers for modification, and obtaining the modified mullite whiskers after drying.

[0013] As a further technical solution, the modification temperature is 40-60°C and the modification time is 3-5h.

[0014] As a further technical solution, the order of adding the modifier is: first adding the silane coupling agent for the first modification, and then adding the carboxyl-containing polymer for the second modification.

[0015] In the present invention, the mechanical properties of the self-adhesive asphalt waterproofing membrane are further improved by limiting the silane coupling agent to be modified for the first time and the carboxyl-containing polymer to be modified for the second time.

[0016] As a further technical solution, the preparation method of the modified mullite whisker comprises the following steps: dissolving a silane coupling agent in deionized water, adding mullite whiskers for a first modification, then adding a carboxyl-containing polymer for a second modification, and obtaining the modified mullite whiskers after drying.

[0017] As a further technical solution, the self-adhesive layer comprises the following raw materials in parts by weight: 30-40 parts of SBS, 10-15 parts of asphalt, 2-4 parts of polyimide adhesive, 10-12 parts of tackifying resin, 20-30 parts of cyclohexane oil, and 5-10 parts of filler.

[0018] As a further technical solution, the self-adhesive layer further comprises 9 to 13 parts of 17-hydroxyheptadecanoic acid.

[0019] In the present invention, by adding 9 to 13 parts of 17-hydroxyheptadecanoic acid into the self-adhesive layer, the mechanical properties of the self-adhesive asphalt waterproofing membrane are further improved.

[0020] As a further technical solution, the softener includes one or two of aromatic oil and reduced second-line engine oil.

[0021] As a further technical solution, the antioxidant includes one or more of antioxidant 1010, antioxidant 164, and antioxidant 1098.

[0022] As a further technical solution, the tire base layer includes one or both of a glass fiber tire and a polyester tire.

[0023] As a further technical solution, the filler includes one or more of kaolin, talcum powder, and lime powder.

[0024] As a further technical solution, the tackifying resin includes one or more of rosin resin, phenolic resin, and terpene resin.

[0025] As a further technical solution, the protective layer and the isolation layer are both PE films.

[0026] As a further technical solution, the thickness of the PE film is 0.02~0.04mm.

[0027] As a further technical solution, the thickness of the tread base layer is 1 mm, the thickness of the asphalt layer is 1.4-1.8 mm, and the thickness of the self-adhesive layer is 0.4-0.8 mm.

[0028] The present invention also provides a method for preparing a self-adhesive asphalt waterproofing membrane for a passive house, comprising the following steps: S1, mixing asphalt, SBS, softener, modified mullite whisker, phenolic resin and antioxidant to obtain an asphalt layer; S2, SBS, asphalt, polyimide adhesive, tackifying resin, naphthenic oil, and filler are mixed and melted, and a self-adhesive layer is obtained after vacuum degassing and cooling; S3, laying the asphalt layer on the tire base layer, laying the self-adhesive layer on the tire base layer, laying a protective film on the asphalt layer, laying an isolation film on the self-adhesive layer, cooling and rolling up, to obtain a self-adhesive asphalt waterproof membrane.

[0029] The present invention also proposes a method for preparing a self-adhesive asphalt waterproofing membrane for a passive house and application of the prepared self-adhesive asphalt waterproofing membrane in a passive house.

[0030] The working principle and beneficial effects of the present invention are: In the present invention, the self-adhesive waterproof roll material is composed of a protective film, an asphalt layer, a base layer, a self-adhesive layer and a release film. The layers cooperate with each other to form a strict waterproof system. By adding amino mullite whiskers modified by a carboxyl-containing polymer into the asphalt layer, the mechanical properties of the self-adhesive waterproof roll material are improved, and the problem of poor mechanical properties of the self-adhesive waterproof roll material is solved, so that the self-adhesive waterproof roll material can provide more reliable waterproof protection for passive houses, and has broad application prospects. DETAILED DESCRIPTION

[0031] 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.

[0032] In the following examples and comparative examples: Asphalt, model: 70# asphalt; SBS, model: D1101 JO; polyepoxysuccinic acid, active ingredient content 99%, purchased from Mitsui Chemicals (Shandong) Co., Ltd.; carboxyl-terminated polycaprolactone, viscosity: 1.75~2.25dL / g; aromatic oil, aromatic content: 80%~85%; second-line engine oil, item number: 116-18, purchased from Jinan Xinhuihuang Chemical Co., Ltd.; cyclohexane oil, model: KN4010; phenolic resin, model: 2402; rosin resin, model: K1, purchased from Guangdong Dingxin Polymer Technology Co., Ltd.; terpene resin, model: T100; mullite whisker, diameter: 0.2~3μm, length: 5~200μm; glass fiber tire, thickness: 1mm; polyester tire, thickness: 1mm.

[0033] Example 1 A method for preparing a self-adhesive asphalt waterproofing membrane for a passive house comprises the following steps: S1, 60 parts of asphalt, 15 parts of SBS, 8 parts of aromatic oil, 20 parts of modified mullite whiskers, 5 parts of phenolic resin, and 1 part of antioxidant 1010 were mixed to obtain an asphalt layer with a thickness of 1.4 mm; S2, 30 parts of SBS, 10 parts of asphalt, 2 parts of polyimide adhesive, 10 parts of rosin resin, 20 parts of naphthenic oil, and 5 parts of kaolin were mixed and melted, and a self-adhesive layer with a thickness of 0.8 mm was obtained after vacuum degassing and cooling; S3. Lay an asphalt layer on the glass fiber tire, lay a self-adhesive layer on the bottom of the glass fiber tire, lay a PE film with a thickness of 0.03 mm on the asphalt layer, lay a PE film with a thickness of 0.03 mm on the self-adhesive layer, cool down and roll up to obtain a self-adhesive asphalt waterproof membrane.

[0034] The method for preparing modified mullite whiskers comprises the following steps: 0.8 g of 3-aminopropyltriethoxysilane and 0.4 g of polyepoxysuccinic acid were dissolved in 500 mL of deionized water, 60 g of mullite whiskers were added, the temperature was raised to 40° C., the mixture was stirred for 5 h, and the modified mullite whiskers were obtained after drying.

[0035] Example 2 A method for preparing a self-adhesive asphalt waterproofing membrane for a passive house comprises the following steps: S1, 65 parts of asphalt, 18 parts of SBS, 12 parts of aromatic oil, 25 parts of modified mullite whisker, 7 parts of phenolic resin, and 2 parts of antioxidant 164 were mixed to obtain an asphalt layer with a thickness of 1.6 mm; S2, 35 parts of SBS, 12 parts of asphalt, 3 parts of polyimide adhesive, 11 parts of phenolic resin, 25 parts of naphthenic oil, and 7 parts of talcum powder were mixed and melted, and a self-adhesive layer with a thickness of 0.6 mm was obtained after vacuum degassing and cooling; S3. Lay an asphalt layer on the polyester tire, lay a self-adhesive layer on the polyester tire, lay a 0.04 mm thick PE film on the asphalt layer, lay a 0.04 mm thick PE film on the self-adhesive layer, cool and roll up to obtain a self-adhesive asphalt waterproof membrane.

[0036] The method for preparing modified mullite whiskers comprises the following steps: 1.6 g of 3-aminopropyltriethoxysilane and 0.8 g of carboxyl-terminated polycaprolactone were dissolved in 500 mL of deionized water, 60 g of mullite whiskers were added, the temperature was raised to 50° C., the mixture was stirred for 4 hours, and the modified mullite whiskers were obtained after drying.

[0037] Example 3 A method for preparing a self-adhesive asphalt waterproofing membrane for a passive house comprises the following steps: S1, 70 parts of asphalt, 20 parts of SBS, 15 parts of second-tier engine oil, 30 parts of modified mullite whiskers, 10 parts of phenolic resin, and 3 parts of antioxidant 1098 were mixed to obtain an asphalt layer with a thickness of 1.8 mm; S2, 40 parts of SBS, 15 parts of asphalt, 4 parts of polyimide adhesive, 12 parts of terpene resin, 30 parts of naphthenic oil, and 10 parts of lime powder were mixed and melted, and a self-adhesive layer with a thickness of 0.4 mm was obtained after vacuum degassing and cooling; S3. Lay an asphalt layer on the glass fiber tire, lay a self-adhesive layer on the bottom of the glass fiber tire, lay a PE film with a thickness of 0.02 mm on the asphalt layer, lay a PE film with a thickness of 0.02 mm on the self-adhesive layer, cool down and roll up to obtain a self-adhesive asphalt waterproof membrane.

[0038] The method for preparing modified mullite whiskers comprises the following steps: 2.4 g of 3-aminopropyltriethoxysilane and 1.2 g of polyepoxysuccinic acid were dissolved in 500 mL of deionized water, 60 g of mullite whiskers were added, the temperature was raised to 60° C., the mixture was stirred for 3 h, and the modified mullite whiskers were obtained after drying.

[0039] Example 4 The present embodiment is different from the embodiment 1 in that the method for preparing the modified mullite whisker comprises the following steps: 0.8 g of 3-aminopropyltriethoxysilane was dissolved in 500 mL of deionized water, 60 g of mullite whiskers were added, the temperature was raised to 40° C., and the mixture was stirred for 2.5 h. Then, 0.4 g of polyepoxysuccinic acid was added, and the mixture was stirred at 40° C. for 2.5 h. After drying, the modified mullite whiskers were obtained.

[0040] Example 5 The present embodiment is different from the embodiment 1 in that the method for preparing the modified mullite whisker comprises the following steps: 0.4 g of polyepoxysuccinic acid was dissolved in 500 mL of deionized water, 60 g of mullite whiskers were added, the temperature was raised to 40° C., and the mixture was stirred at this temperature for 2.5 h. Then, 0.8 g of 3-aminopropyltriethoxysilane was added, and the mixture was stirred at 40° C. for 2.5 h. After drying, the modified mullite whiskers were obtained.

[0041] Example 6 The difference between this embodiment and embodiment 4 is that the addition amount of 3-aminopropyltriethoxysilane is 1.05 g and the addition amount of polyepoxysuccinic acid is 0.15 g.

[0042] Example 7 The only difference between this embodiment and embodiment 4 is that the added amount of 3-aminopropyltriethoxysilane is 0.9 g and the added amount of polyepoxysuccinic acid is 0.3 g.

[0043] Example 8 The only difference between this embodiment and embodiment 4 is that the added amount of 3-aminopropyltriethoxysilane is 0.96 g and the added amount of polyepoxysuccinic acid is 0.24 g.

[0044] Example 9 The difference between this embodiment and embodiment 4 is that the addition amount of 3-aminopropyltriethoxysilane is 1.0 g and the addition amount of polyepoxysuccinic acid is 0.2 g.

[0045] Example 10 The only difference between this embodiment and embodiment 8 is that 5 parts of 17-hydroxyheptadecanoic acid are further added to the self-adhesive layer.

[0046] Embodiment 11 The only difference between this embodiment and embodiment 8 is that 15 parts of 17-hydroxyheptadecanoic acid are further added to the self-adhesive layer.

[0047] Example 12 The only difference between this embodiment and embodiment 8 is that 9 parts of 17-hydroxyheptadecanoic acid are further added to the self-adhesive layer.

[0048] Example 13 The only difference between this embodiment and embodiment 8 is that 13 parts of 17-hydroxyheptadecanoic acid are further added to the self-adhesive layer.

[0049] Comparative Example 1 The only difference between this comparative example and Example 1 is that the modified mullite whisker is replaced by an equal amount of mullite whisker.

[0050] Comparative Example 2 The only difference between this comparative example and Example 1 is that 3-aminopropyltriethoxysilane is replaced by an equal amount of polyepoxysuccinic acid.

[0051] Comparative Example 3 The only difference between this comparative example and Example 1 is that the polyepoxysuccinic acid is replaced by an equal amount of 3-aminopropyltriethoxysilane.

[0052] The self-adhesive asphalt waterproof membranes prepared in Examples 1 to 13 and Comparative Examples 1 to 3 were respectively measured for the maximum peak tensile force and the maximum peak elongation in the longitudinal direction 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". The test results are specifically shown in Table 1.

[0053] Table 1 Performance test results of self-adhesive asphalt waterproof membrane

[0054] Compared with Example 1, in Example 1, the mullite whiskers were not modified, in Example 2, only polyepoxysuccinic acid was used to modify the mullite whiskers, and in Example 3, only 3-aminopropyltriethoxysilane was used to modify the mullite whiskers. As a result, the maximum peak tensile force and the maximum peak elongation of the self-adhesive asphalt waterproof membrane prepared in Examples 1 to 3 were lower than those in Example 1, indicating that when 3-aminopropyltriethoxysilane and polyepoxysuccinic acid were used to modify the mullite whiskers at the same time, the mechanical properties of the self-adhesive asphalt waterproof membrane could be improved.

[0055] Compared with Example 1, the order of adding 3-aminopropyltriethoxysilane and polyepoxysuccinic acid was changed in Examples 4~5. As a result, the maximum peak tensile force and maximum peak elongation of the self-adhesive asphalt waterproof membrane prepared in Example 4 were higher than those in Examples 1 and 5, indicating that when 3-aminopropyltriethoxysilane first modified the mullite whiskers and polyepoxysuccinic acid was modified for the second time, the mechanical properties of the self-adhesive asphalt waterproof membrane can be further improved.

[0056] Compared with Example 4, the mass ratio of 3-aminopropyltriethoxysilane and polyepoxysuccinic acid was changed in Examples 6 to 9. As a result, the maximum peak tensile force and the maximum peak elongation of the self-adhesive asphalt waterproof membrane prepared in Examples 7 to 9 were higher than those in Examples 4 and 6, indicating that when the mass ratio of 3-aminopropyltriethoxysilane and polyepoxysuccinic acid was 3 to 5:1, the mechanical properties of the self-adhesive asphalt waterproof membrane could be further improved; by comparing Examples 7 to 9, it was found that the maximum peak tensile force and the maximum peak elongation of the self-adhesive asphalt waterproof membrane prepared in Example 8 were higher than those in Examples 7 and 9, indicating that when the mass ratio of 3-aminopropyltriethoxysilane and polyepoxysuccinic acid was 4:1, the mechanical properties of the prepared self-adhesive asphalt waterproof membrane were the best.

[0057] Compared with Example 8, different amounts of 17-hydroxyheptadecanoic acid were added to the self-adhesive layers of Examples 10 to 13. As a result, the maximum peak tensile force and maximum peak elongation of the self-adhesive asphalt waterproof membrane prepared in Examples 12 to 13 were higher than those of Examples 10 and 13, indicating that adding 9 to 13 parts of 17-hydroxyheptadecanoic acid to the self-adhesive layer can further improve the mechanical properties of the self-adhesive asphalt waterproof membrane.

[0058] 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 self-adhesive asphalt waterproofing membrane for passive houses, characterized in that: From top to bottom, it includes a protective film, an asphalt layer, a tire base layer, a self-adhesive layer, and a separation film. The asphalt layer includes the following raw materials in parts by weight: 60-70 parts of asphalt, 15-20 parts of SBS, 8-15 parts of softener, 20-30 parts of modified mullite whiskers, 5-10 parts of phenolic resin, and 1-3 parts of antioxidant; the modified mullite whiskers are obtained by modifying mullite whiskers with a modifier; the modifier includes a silane coupling agent and a carboxyl-containing polymer; the mass ratio of the silane coupling agent to the carboxyl-containing polymer is 1:50-50:

1.

2. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The amount of the modifier added is 2% to 6% of the mass of the amination mullite whisker.

3. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The carboxyl-containing polymer includes one or both of polyepoxysuccinic acid and carboxyl-terminated polycaprolactone.

4. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The mass ratio of the silane coupling agent to the carboxyl-containing polymer is 3-5:

1.

5. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The preparation method of the modified mullite whisker comprises the following steps: dissolving a modifier in deionized water, adding mullite whiskers for modification, and obtaining the modified mullite whiskers after drying.

6. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The order of adding the modifier is: first adding the silane coupling agent for the first modification, and then adding the carboxyl-containing polymer for the second modification.

7. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The self-adhesive layer comprises the following raw materials in parts by weight: 30-40 parts of SBS, 10-15 parts of asphalt, 2-4 parts of polyimide adhesive, 10-12 parts of tackifying resin, 20-30 parts of cyclohexane oil, and 5-10 parts of filler.

8. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 7, characterized in that: The self-adhesive layer further comprises 9 to 13 parts of 17-hydroxyheptadecanoic acid.

9. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The softener includes one or both of aromatic oil and reduced second-line engine oil.

10. The self-adhesive asphalt waterproofing membrane for passive houses according to claim 1, characterized in that: The tire base layer includes one or both of a glass fiber tire and a polyester tire.

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