CN115635755B - Preparation method of polymer modified asphalt waterproof coiled material - Google Patents
Preparation method of polymer modified asphalt waterproof coiled material Download PDFInfo
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- CN115635755B CN115635755B CN202211301436.5A CN202211301436A CN115635755B CN 115635755 B CN115635755 B CN 115635755B CN 202211301436 A CN202211301436 A CN 202211301436A CN 115635755 B CN115635755 B CN 115635755B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 74
- 239000000463 material Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 229920000642 polymer Polymers 0.000 title claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 67
- HXHCOXPZCUFAJI-UHFFFAOYSA-N prop-2-enoic acid;styrene Chemical compound OC(=O)C=C.C=CC1=CC=CC=C1 HXHCOXPZCUFAJI-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 22
- -1 SBS compound Chemical class 0.000 claims abstract 7
- 238000002156 mixing Methods 0.000 claims description 45
- 238000003756 stirring Methods 0.000 claims description 30
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- 230000001276 controlling effect Effects 0.000 claims description 22
- FUGYGGDSWSUORM-UHFFFAOYSA-N 4-hydroxystyrene Chemical compound OC1=CC=C(C=C)C=C1 FUGYGGDSWSUORM-UHFFFAOYSA-N 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 20
- 239000003208 petroleum Substances 0.000 claims description 19
- 239000006229 carbon black Substances 0.000 claims description 13
- 239000012188 paraffin wax Substances 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000292 calcium oxide Substances 0.000 claims description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 10
- 239000004945 silicone rubber Substances 0.000 claims description 10
- NFMWFGXCDDYTEG-UHFFFAOYSA-N trimagnesium;diborate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]B([O-])[O-].[O-]B([O-])[O-] NFMWFGXCDDYTEG-UHFFFAOYSA-N 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- QXOXHPTYHCESTD-UHFFFAOYSA-N SBS Chemical compound SBS QXOXHPTYHCESTD-UHFFFAOYSA-N 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 8
- 230000014759 maintenance of location Effects 0.000 abstract description 8
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 52
- 150000001875 compounds Chemical class 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- MCCIMQKMMBVWHO-UHFFFAOYSA-N octadecanoic acid;titanium Chemical compound [Ti].CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O MCCIMQKMMBVWHO-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of a polymer modified asphalt waterproof coiled material, which comprises the steps of preparing a polybutyl acrylate-styrene whisker SBS compound, preparing an asphalt mixture, preparing a waterproof layer mixture and preparing the waterproof coiled material. The waterproof coiled material prepared by the invention has high tensile force, the tensile force is tested according to the method in GB 18242-2008, the tensile force retention rate after artificial weathering is tested, the tensile force is 1189-1251N/50 mm, and the tensile force retention rate after heat aging is 92.1-93.5%.
Description
Technical Field
The invention relates to a preparation method of a polymer modified asphalt waterproof coiled material, and belongs to the field of waterproof coiled materials.
Background
The polymer modified asphalt waterproof coiled material is short for modified asphalt waterproof coiled material, is widely applied to building waterproof, is modified, can solve the problems of low softening point and low temperature brittleness of the waterproof coiled material, and improves the stability and durability of the waterproof coiled material.
As a main waterproof coiled material in the field of buildings in China, the styrene-butadiene-styrene block copolymer (SBS) modified asphalt waterproof coiled material has excellent performances of stretching, ageing resistance, hydrophobicity, high and low temperature resistance and the like, and is widely applied to the fields of civil houses, industrial buildings, municipal engineering and the like.
After SBS modifier is added, the low temperature performance of asphalt material is obviously improved, it makes asphalt still have flexibility below brittle point, because SBS is used as polymer modifier, after asphalt modification, because of the difference of polymer dispersion phase and asphalt matrix phase modulus, stress concentration can occur around particles under the action of external load, and a large number of micro-fine lines are initiated, the development of these lines is terminated in another polymer particle and blocked, when lines meet, turning or branching can occur, these changes all need to absorb energy, so asphalt can show toughness after adding polymer, low temperature performance is obviously improved.
SBS is classified into linear SBS and star SBS, wherein the improvement of the low-temperature flexibility of the star SBS is relatively poor, the linear SBS has a compliant chain molecular structure form, and can keep larger low-temperature flexibility after asphalt modification, but the compatibility of the linear SBS and asphalt is slightly poor, and the obtained waterproof coiled material has poor tensile property, low tensile force and low elongation and can not be obviously improved even if fillers such as carbon black are added after asphalt modification.
In summary, the conventional SBS modified asphalt waterproof coiled material adopts linear SBS to modify asphalt to solve the problem of poor flexibility of the waterproof coiled material at low temperature, but the finally prepared waterproof coiled material has low tensile force and low elongation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, further prepares asphalt mixture by preparing polybutyl acrylate-styrene whisker SBS compound, and finally prepares the waterproof coiled material, solves the problem of poor flexibility of the waterproof coiled material at low temperature, and simultaneously improves the tensile force and the elongation of the waterproof coiled material.
In order to solve the technical problems, the invention adopts the following technical scheme:
the preparation method comprises the steps of preparing a polybutyl acrylate-styrene whisker SBS compound, preparing an asphalt mixture, preparing a waterproof layer mixture and preparing a waterproof coiled material.
The following is a further improvement of the above technical scheme:
the method for preparing the polybutyl acrylate-styrene whisker SBS compound comprises the steps of mixing polybutyl acrylate-styrene whisker, paraffin, isopropyl titanium triisostearate and magnesium borate, controlling the temperature to be 123-127 ℃, stirring for 14-18min to obtain a mixture, mixing the mixture, linear SBS, zinc oxide and carbon black, controlling the temperature to be 118-122 ℃, mixing for 19-25min, and obtaining the polybutyl acrylate-styrene whisker SBS compound after mixing.
The mass ratio of the polybutyl acrylate-styrene whisker to the paraffin to the triisostearate isopropoxide titanium to the magnesium borate is 22-28:2.5-3.5:0.8-1.2:0.8-1.2;
the mass ratio of the mixture to the linear SBS to the zinc oxide to the carbon black is 22-28:130-170:2.5-3.5:1.8-2.2;
the linear SBS is of the type SBS 7031.
The method for preparing the asphalt mixture comprises the steps of mixing asphalt, urea, 4-vinyl phenol, calcium oxide and deionized water, controlling the temperature to be 133-137 ℃, stirring for 45-55min, keeping the temperature unchanged after stirring, controlling the dripping time to be 50-65min, dripping butyl acrylate, keeping stirring in the dripping process, adding sodium lignin sulfonate, maleic anhydride and potassium persulfate after dripping, keeping the temperature unchanged, mixing for 210-230min, and obtaining the asphalt mixture after mixing.
The mass ratio of asphalt, urea, 4-vinyl phenol, calcium oxide, deionized water, butyl acrylate, sodium lignin sulfonate, maleic anhydride and potassium persulfate is 45-55:6.5-7.5:3.5-4.5:2.7-3.3:52-68:10-14:8-12:7.5-8.5:0.8-1.2;
the asphalt is 90# petroleum asphalt.
The method for preparing the waterproof layer mixture comprises the steps of heating the asphalt mixture to 142-147 ℃, stirring until the asphalt mixture is in a molten state, adding the polybutyl acrylate-styrene whisker SBS compound, keeping the temperature unchanged, stirring for 53-58min, then adding the silicone rubber, the tri (2, 4-di-tert-butylphenyl) phosphite and the petroleum resin, regulating the temperature to 123-127 ℃, mixing for 82-87min, and obtaining the waterproof layer mixture after mixing.
The mass ratio of the asphalt mixture to the polybutyl acrylate-styrene whisker SBS compound to the silicone rubber to the tri (2, 4-di-tert-butylphenyl) phosphite to the petroleum resin is 105-135:7.5-8.5:4.5-5.5:0.8-1.2:4.5-5.5.
The method for preparing the waterproof coiled material comprises the steps of heating the waterproof layer mixture to 148-152 ℃, coating the waterproof layer mixture on two sides of a base layer, performing hot pressing shaping, covering a separation film, and rolling to obtain the waterproof coiled material.
The waterproof coiled material has the structure that an upper isolation layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a lower isolation layer are respectively arranged from top to bottom;
the upper isolation layer and the lower isolation layer are made of PE films, and the thicknesses of the PE films are 0.08-0.12mm;
the material of the base layer is polyester base, and the thickness is 0.15-0.25mm;
the thickness of the upper waterproof layer and the lower waterproof layer is 1.25-1.35mm.
Compared with the prior art, the invention has the following beneficial effects:
the waterproof coiled material prepared by the invention has good low-temperature flexibility, no crack at minus 35 ℃ in a low-temperature flexibility test, and no crack at minus 30 ℃ in a low-temperature flexibility test after heat aging;
the waterproof coiled material prepared by the invention has high tensile force, the tensile force is tested according to the method in GB 18242-2008, the tensile force retention rate after artificial weathering is tested, the tensile force is 1189-1251N/50 mm, and the tensile force retention rate after heat aging is 92.1-93.5%;
the waterproof coiled material prepared by the invention has high elongation, the elongation is tested according to the method in GB 18242-2008, the elongation retention after heat aging is tested, the elongation is 45.9-46.7%, and the elongation retention after heat aging is 94.2-94.8%;
the waterproof coiled material prepared by the invention has good waterproof performance, and is waterproof under 0.3MPa for 30min in a waterproof performance test;
the waterproof coiled material prepared by the invention has low mass increase rate after soaking, and the mass increase rate after soaking is 0.35-0.31%;
the waterproof coiled material prepared by the invention has high seam peeling strength, and the seam peeling strength is 3.7-3.8N/mm.
Detailed Description
Example 1
(1) Preparation of polybutyl acrylate-styrene whisker SBS composite
Mixing polybutyl acrylate-styrene whisker, paraffin, triisopropyloxy titanium stearate and magnesium borate, controlling the temperature to be 125 ℃, stirring for 15min to obtain a mixture, mixing the mixture, linear SBS, zinc oxide and carbon black, controlling the temperature to be 120 ℃, mixing for 20min to obtain a polybutyl acrylate-styrene whisker SBS compound;
the mass ratio of the polybutyl acrylate-styrene whisker to the paraffin to the triisostearate isopropoxide titanium to the magnesium borate is 25:3:1:1;
the mass ratio of the mixture to the linear SBS to the zinc oxide to the carbon black is 25:150:3:2;
the linear SBS is of the type SBS 7031.
(2) Preparation of asphalt mixture
Mixing asphalt, urea, 4-vinyl phenol, calcium oxide and deionized water, controlling the temperature to be 135 ℃, stirring for 50min, keeping the temperature unchanged after stirring, controlling the dripping time to be 60min, dripping butyl acrylate, keeping stirring in the dripping process, adding sodium lignin sulfonate, maleic anhydride and potassium persulfate after dripping, keeping the temperature unchanged, mixing for 220min, and obtaining an asphalt mixture after mixing;
the mass ratio of the asphalt to the urea to the 4-vinylphenol to the calcium oxide to the deionized water to the butyl acrylate to the sodium lignin sulfonate to the maleic anhydride to the potassium persulfate is 50:7:4:3:60:12:10:8:1;
the asphalt is 90# petroleum asphalt;
(3) Preparation of waterproof layer mixture
Heating the asphalt mixture to 145 ℃, stirring until the asphalt mixture is in a molten state, adding the polybutyl acrylate-styrene whisker SBS compound, keeping the temperature unchanged, stirring for 55min, then adding the silicone rubber, the tri (2, 4-di-tert-butylphenyl) phosphite and the petroleum resin, adjusting the temperature to 125 ℃, mixing for 85min, and obtaining the waterproof layer mixture after mixing;
the mass ratio of the asphalt mixture to the polybutyl acrylate-styrene whisker SBS compound to the silicone rubber to the tri (2, 4-di-tert-butylphenyl) phosphite to the petroleum resin is 120:8:5:1:5.
(4) Preparation of waterproof coiled material
The waterproof coiled material has the structure that an upper isolation layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a lower isolation layer are respectively arranged from top to bottom;
the upper isolation layer and the lower isolation layer are made of PE films, and the thickness of each PE film is 0.1mm;
the material of the base layer is polyester base, and the thickness is 0.2mm;
the thickness of the upper waterproof layer and the lower waterproof layer is 1.3mm;
the preparation method of the waterproof coiled material comprises the following steps:
and heating the waterproof layer mixture to 150 ℃, coating the waterproof layer mixture on two sides of the base layer, performing hot pressing shaping, covering the isolating film, and rolling to obtain the waterproof coiled material.
Example 2
(1) Preparation of polybutyl acrylate-styrene whisker SBS composite
Mixing polybutyl acrylate-styrene whisker, paraffin, triisopropyloxy titanium stearate and magnesium borate, controlling the temperature to be 123 ℃, stirring for 18min to obtain a mixture, mixing the mixture, linear SBS, zinc oxide and carbon black, controlling the temperature to be 118 ℃, mixing for 25min to obtain a polybutyl acrylate-styrene whisker SBS compound;
the mass ratio of the polybutyl acrylate-styrene whisker to the paraffin to the triisostearate isopropoxide titanium to the magnesium borate is 22:2.5:0.8:0.8;
the mass ratio of the mixture to the linear SBS to the zinc oxide to the carbon black is 22:130:2.5:1.8;
the linear SBS is of the type SBS 7031.
(2) Preparation of asphalt mixture
Mixing asphalt, urea, 4-vinyl phenol, calcium oxide and deionized water, controlling the temperature to be 133 ℃, stirring for 55min, keeping the temperature unchanged after stirring, controlling the dripping time to be 50min, dripping butyl acrylate, keeping stirring in the dripping process, adding sodium lignin sulfonate, maleic anhydride and potassium persulfate after dripping, keeping the temperature unchanged, mixing for 210min, and obtaining an asphalt mixture after mixing;
the mass ratio of asphalt, urea, 4-vinyl phenol, calcium oxide, deionized water, butyl acrylate, sodium lignin sulfonate, maleic anhydride and potassium persulfate is 45:6.5:3.5:2.7:52:10:8:7.5:0.8;
the asphalt is 90# petroleum asphalt;
(3) Preparation of waterproof layer mixture
Heating the asphalt mixture to 142 ℃, stirring until the asphalt mixture is in a molten state, adding the polybutyl acrylate-styrene whisker SBS compound, keeping the temperature unchanged, stirring for 53min, then adding the silicone rubber, the tri (2, 4-di-tert-butylphenyl) phosphite and the petroleum resin, adjusting the temperature to 123 ℃, mixing for 82min, and obtaining the waterproof layer mixture after mixing;
the mass ratio of the asphalt mixture to the polybutyl acrylate-styrene whisker SBS compound to the silicone rubber to the tri (2, 4-di-tert-butylphenyl) phosphite to the petroleum resin is 105:7.5:4.5:0.8:4.5.
(4) Preparation of waterproof coiled material
The waterproof coiled material has the structure that an upper isolation layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a lower isolation layer are respectively arranged from top to bottom;
the upper isolation layer and the lower isolation layer are made of PE films, and the thickness of each PE film is 0.08mm;
the material of the base layer is polyester base, and the thickness is 0.15mm;
the thickness of the upper waterproof layer and the lower waterproof layer is 1.35mm;
the preparation method of the waterproof coiled material comprises the following steps:
and heating the waterproof layer mixture to 148 ℃, coating the waterproof layer mixture on two sides of the base layer, performing hot pressing shaping, covering the isolating film, and rolling to obtain the waterproof coiled material.
Example 3
(1) Preparation of polybutyl acrylate-styrene whisker SBS composite
Mixing polybutyl acrylate-styrene whisker, paraffin, triisopropyloxy titanium stearate and magnesium borate, controlling the temperature at 127 ℃, stirring for 14min to obtain a mixture, mixing the mixture, linear SBS, zinc oxide and carbon black, controlling the temperature at 122 ℃, mixing for 19min to obtain a polybutyl acrylate-styrene whisker SBS compound;
the mass ratio of the polybutyl acrylate-styrene whisker to the paraffin to the triisostearate isopropoxide titanium to the magnesium borate is 28:3.5:1.2:1.2;
the mass ratio of the mixture to the linear SBS to the zinc oxide to the carbon black is 28:170:3.5:2.2;
the linear SBS is of the type SBS 7031.
(2) Preparation of asphalt mixture
Mixing asphalt, urea, 4-vinyl phenol, calcium oxide and deionized water, controlling the temperature to be 137 ℃, stirring for 45min, keeping the temperature unchanged after stirring, controlling the dripping time to be 65min, dripping butyl acrylate, keeping stirring in the dripping process, adding sodium lignin sulfonate, maleic anhydride and potassium persulfate after dripping, keeping the temperature unchanged, mixing for 230min, and obtaining an asphalt mixture after mixing;
the mass ratio of the asphalt to the urea to the 4-vinylphenol to the calcium oxide to the deionized water to the butyl acrylate to the sodium lignin sulfonate to the maleic anhydride to the potassium persulfate is 55:7.5:4.5:3.3:68:14:12:8.5:1.2;
the asphalt is 90# petroleum asphalt;
(3) Preparation of waterproof layer mixture
Heating the asphalt mixture to 147 ℃, stirring until the asphalt mixture is in a molten state, adding the polybutyl acrylate-styrene whisker SBS compound, keeping the temperature unchanged, stirring for 58min, then adding the silicone rubber, the tri (2, 4-di-tert-butylphenyl) phosphite and the petroleum resin, adjusting the temperature to 127 ℃, mixing for 87min, and obtaining the waterproof layer mixture after mixing;
the mass ratio of the asphalt mixture to the polybutyl acrylate-styrene whisker SBS compound to the silicone rubber to the tri (2, 4-di-tert-butylphenyl) phosphite to the petroleum resin is 135:8.5:5.5:1.2:5.5.
(4) Preparation of waterproof coiled material
The waterproof coiled material has the structure that an upper isolation layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a lower isolation layer are respectively arranged from top to bottom;
the upper isolation layer and the lower isolation layer are made of PE films, and the thickness of each PE film is 0.12mm;
the material of the base layer is polyester base, and the thickness is 0.25mm;
the thickness of the upper waterproof layer and the lower waterproof layer is 1.25mm;
the preparation method of the waterproof coiled material comprises the following steps:
and heating the waterproof layer mixture to 152 ℃, coating the waterproof layer mixture on two sides of the base layer, performing hot pressing shaping, covering the isolating film, and rolling to obtain the waterproof coiled material.
Comparative example 1
Based on example 1, the procedure for preparing the polybutyl acrylate-styrene whisker SBS composite was changed to the following:
mixing polybutyl acrylate-styrene whisker, paraffin, linear SBS, zinc oxide and carbon black, controlling the temperature to 120 ℃, mixing for 20min to obtain polybutyl acrylate-styrene whisker SBS compound;
the mass ratio of the polybutyl acrylate to the styrene whisker to the paraffin, the linear SBS to the zinc oxide to the carbon black is 25:3:150:3:2;
the model of the linear SBS is SBS 7031;
the other steps are the same, and the waterproof coiled material is prepared.
Comparative example 2
On the basis of example 1, the procedure for preparing the asphalt mixture was changed to the following:
controlling the temperature to be 130 ℃, and blending the 90# petroleum asphalt and the 10# petroleum asphalt to obtain an asphalt mixture;
the mass ratio of the 90# petroleum asphalt to the 10# petroleum asphalt is 100:15;
the other steps are the same, and the waterproof coiled material is prepared.
Example 4 Low temperature flexibility test of waterproof roll
The waterproof rolls of examples 1 to 3 and comparative examples 1 to 2 were tested for low-temperature flexibility according to the method in GB 18242-2008, and the low-temperature flexibility after heat aging was tested, and the results are shown in Table 1.
Example 5 waterproof roll tensile test
The waterproof rolls of examples 1 to 3 and comparative examples 1 to 2 were tested for tensile force according to the method in GB 18242-2008, and for retention of tensile force after artificial weathering, the results are shown in Table 2.
Example 6 waterproof roll elongation test
The waterproof rolls of examples 1 to 3 and comparative examples 1 to 2 were tested for elongation according to the method in GB 18242-2008, and the elongation retention after heat aging was tested, and the results are shown in Table 3.
Example 7 other Performance test of waterproof roll
The waterproof rolls of examples 1 to 3 and comparative examples 1 to 2 were tested for water impermeability, mass increase rate after immersion, and seam peel strength according to the method in GB 18242-2008, and the results are shown in Table 4.
Claims (3)
1. The preparation method of the polymer modified asphalt waterproof coiled material is characterized by comprising the steps of preparing a polybutyl acrylate-styrene whisker SBS compound, preparing an asphalt mixture, preparing a waterproof layer mixture and preparing a waterproof coiled material;
the method for preparing the polybutyl acrylate-styrene whisker SBS compound comprises the steps of mixing polybutyl acrylate-styrene whisker, paraffin, triisostearate isopropyl titanium ester and magnesium borate, controlling the temperature to be 123-127 ℃, stirring for 14-18min to obtain a mixture, mixing the mixture, linear SBS, zinc oxide and carbon black, controlling the temperature to be 118-122 ℃, mixing for 19-25min, and obtaining the polybutyl acrylate-styrene whisker SBS compound after mixing;
the mass ratio of the polybutyl acrylate-styrene whisker to the paraffin to the triisostearate isopropoxide titanium to the magnesium borate is 22-28:2.5-3.5:0.8-1.2:0.8-1.2;
the mass ratio of the mixture to the linear SBS to the zinc oxide to the carbon black is 22-28:130-170:2.5-3.5:1.8-2.2;
the model of the linear SBS is SBS 7031;
mixing asphalt, urea, 4-vinyl phenol, calcium oxide and deionized water, controlling the temperature to be 133-137 ℃, stirring for 45-55min, keeping the temperature unchanged after stirring, controlling the dripping time to be 50-65min, dripping butyl acrylate, keeping stirring in the dripping process, adding sodium lignin sulfonate, maleic anhydride and potassium persulfate after dripping, keeping the temperature unchanged, mixing for 210-230min, and obtaining the asphalt mixture after mixing;
the mass ratio of asphalt, urea, 4-vinyl phenol, calcium oxide, deionized water, butyl acrylate, sodium lignin sulfonate, maleic anhydride and potassium persulfate is 45-55:6.5-7.5:3.5-4.5:2.7-3.3:52-68:10-14:8-12:7.5-8.5:0.8-1.2;
the asphalt is 90# petroleum asphalt;
heating the asphalt mixture to 142-147 ℃, stirring until the asphalt mixture is in a molten state, adding the polybutyl acrylate-styrene whisker SBS compound, keeping the temperature unchanged, stirring for 53-58min, then adding the silicone rubber, the tri (2, 4-di-tert-butylphenyl) phosphite and the petroleum resin, regulating the temperature to 123-127 ℃, mixing for 82-87min, and obtaining the waterproof layer mixture after mixing;
the mass ratio of the asphalt mixture to the polybutyl acrylate-styrene whisker SBS compound to the silicone rubber to the tri (2, 4-di-tert-butylphenyl) phosphite to the petroleum resin is 105-135:7.5-8.5:4.5-5.5:0.8-1.2:4.5-5.5.
2. The method for preparing the polymer modified asphalt waterproof coiled material according to claim 1, which is characterized in that:
the method for preparing the waterproof coiled material comprises the steps of heating the waterproof layer mixture to 148-152 ℃, coating the waterproof layer mixture on two sides of a base layer, performing hot pressing shaping, covering a separation film, and rolling to obtain the waterproof coiled material.
3. The method for preparing the polymer modified asphalt waterproof coiled material according to claim 2, which is characterized in that:
the waterproof coiled material has the structure that an upper isolation layer, an upper waterproof layer, a tire base layer, a lower waterproof layer and a lower isolation layer are respectively arranged from top to bottom;
the upper isolation layer and the lower isolation layer are made of PE films, and the thicknesses of the PE films are 0.08-0.12mm;
the material of the base layer is polyester base, and the thickness is 0.15-0.25mm;
the thickness of the upper waterproof layer and the lower waterproof layer is 1.25-1.35mm.
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