CN115726199A - SBS modified asphalt waterproof coiled material and preparation method and application thereof - Google Patents
SBS modified asphalt waterproof coiled material and preparation method and application thereof Download PDFInfo
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- CN115726199A CN115726199A CN202211584683.0A CN202211584683A CN115726199A CN 115726199 A CN115726199 A CN 115726199A CN 202211584683 A CN202211584683 A CN 202211584683A CN 115726199 A CN115726199 A CN 115726199A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 53
- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000003607 modifier Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000003208 petroleum Substances 0.000 claims abstract description 17
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 12
- 238000004078 waterproofing Methods 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004321 preservation Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000209020 Cornus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of waterproof coiled materials, and discloses an SBS modified asphalt waterproof coiled material and a preparation method and application thereof. The method comprises the following steps: (1) Mixing naphthenic oil and SBS modifier to obtain swollen SBS gel at 25 deg.c; (2) Carrying out first contact on the swollen SBS and asphalt to obtain a mixture I; (3) Carrying out second contact on the mixture I, an anti-aging agent, petroleum resin, a BL modifier and a filler to obtain a coating; (4) Coating the coating on a base fabric to obtain the waterproof roll; the temperature of the first contacting and the second contacting are each independently 120-160 ℃. The method provided by the invention can safely and environmentally prepare the SBS modified asphalt waterproof coiled material formed at low temperature on the premise of ensuring the heat resistance and the joint peeling strength of the asphalt waterproof coiled material.
Description
Technical Field
The invention relates to the technical field of waterproof coiled materials, in particular to an SBS modified asphalt waterproof coiled material and a preparation method and application thereof.
Background
The waterproof material is an important material for preventing water in buildings, wherein the SBS modified asphalt waterproof coiled material occupies the half-wall river mountain of the waterproof material. However, in the preparation process of the conventional SBS modified asphalt waterproof coiled material on the market, a large amount of complex modifier is added, so that the swelling process temperature is required to be higher than 190 ℃ and even reach 220 ℃. On the other hand, the SBS modified asphalt waterproof coiled material needs to use a large amount of asphalt, and the asphalt generates toxic dense smoke at such high temperature, thereby threatening the atmospheric environment and the physical health of operators.
In addition, the cooling process of the product consumes a large amount of water. Also, reducing the amount of modifier used results in a product having a severely unacceptable heat resistance.
CN113528083A discloses a low-temperature formed hot-melt coiled material, which can realize the reduction of the viscosity of SBS modified asphalt adhesive, control the production temperature between 145 ℃ and 155 ℃, reduce the release of toxic smoke during production, and ensure that the SBS modified asphalt adhesive is more environment-friendly and energy-saving during production. However, in step one of the scheme: adding asphalt and a plasticizer into a reaction kettle, and heating to 185-195 ℃ at a stirring speed of 760-840r/min to obtain a mixture A; and in the second step: adding SBS modifier and high temperature modifier into the mixture A, heating to 185-195 deg.c, and stirring at 660-740r/min for 1.5-3 hr to obtain mixture B. In both steps, the mixture containing the asphalt needs to be heated to a high temperature of 185-195 ℃, and in the examples, 195 ℃ is adopted, so the scheme cannot completely solve the problem that the asphalt generates toxic smoke at the high temperature.
CN110016291A discloses a novel high-temperature-resistant non-cured waterproof coating, which can be constructed only by heating to 130 ℃, thereby greatly reducing the harm to personnel and environment. The method only realizes the temperature of 130 ℃ in the construction process, and does not solve the problem that the asphalt generates toxic smoke at high temperature in the production process of the coating.
Therefore, on the premise of ensuring the heat resistance and the joint peeling strength of the asphalt waterproof coiled material, the method for solving the problem of the molding of the SBS modified asphalt waterproof coiled material under the low-temperature condition through a safe and environment-friendly method has important significance.
Disclosure of Invention
The invention aims to solve the problem that the SBS modified asphalt waterproof coiled material which can be molded at low temperature can not be prepared safely and environmentally on the premise of ensuring the heat resistance and the joint peeling strength of the asphalt waterproof coiled material in the prior art.
In order to achieve the above object, one aspect of the present invention provides a method for preparing an SBS modified asphalt waterproof roll, the method comprising:
(1) Mixing naphthenic oil and SBS modifier to obtain swollen SBS gel at 25 deg.c;
(2) Carrying out first contact on the swollen SBS and asphalt to obtain a mixture I;
(3) Carrying out second contact on the mixture I, an anti-aging agent, petroleum resin, a BL modifier and a filler to obtain a coating;
(4) Coating the coating on a base fabric to obtain the waterproof coiled material;
the temperature of the first contact and the second contact is each independently 120-160 ℃.
The second aspect of the invention provides a low-temperature formable SBS modified asphalt waterproof coiled material prepared by the method of the first aspect.
The third aspect of the invention provides the application of the SBS modified asphalt waterproof coiled material which can be formed at low temperature in the second aspect in building waterproof.
Compared with the prior art, the method provided by the invention at least has the following advantages:
(1) The method provided by the invention can solve the problem of overhigh process temperature of the SBS modified asphalt waterproof coiled material;
(2) The SBS modified asphalt waterproof coiled material prepared by the method provided by the invention has the advantages of excellent performance, good heat resistance, high joint peeling strength, easy oil discharge in hot melting construction, good cohesiveness, short batching time in the forming process, cooling water saving and small smoke dust and odor discharge amount.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
It is to be noted that, in various aspects of the present invention, the present invention is described only once in one aspect thereof with respect to the same components or terms in the aspects without repeated descriptions, and those skilled in the art should not be construed as limiting the present invention.
As described above, the first aspect of the present invention provides a method for preparing an SBS modified asphalt waterproof roll, which includes:
(1) Mixing naphthenic oil and SBS modifier to obtain swollen SBS gel at 25 deg.c;
(2) Carrying out first contact on the swollen SBS and asphalt to obtain a mixture I;
(3) Carrying out second contact on the mixture I, an anti-aging agent, petroleum resin, a BL modifier and a filler to obtain a coating;
(4) Coating the coating on a base fabric to obtain the waterproof coiled material;
the temperature of the first contacting and the second contacting are each independently 120-160 ℃.
According to a preferred embodiment, in step (1), the temperature of the mixing is between 140 and 230 ℃.
Preferably, the naphthenic oil has a kinematic viscosity of 5 to 20 mPas at 100 ℃.
Preferably, the SBS modifier has a melt index of 0.2 to 1.5g/10min.
Preferably, in step (1), the mixing conditions at least satisfy: under the condition of stirring, the rotating speed is 800-1400r/min, the mixing temperature is 160-220 ℃, and the mixing time is 2.5-4.0h.
According to a preferred embodiment, in step (1), the specific operation of mixing comprises: under the stirring condition of the rotating speed of 800-1200r/min, heating the naphthenic oil to the mixing temperature of 140-230 ℃ for mixing I at the heating rate of 5-8 ℃/min, then adding the SBS modifier for mixing II for 0.5-2h under the heat preservation condition, and cooling to the room temperature to obtain the swollen SBS, wherein the rotating speed of the mixing II is 1200-1400r/min.
In the present invention, the mixing I and/or the mixing II may be performed using a high-speed shear apparatus.
In the present invention, the normal temperature or the room temperature is 25 ± 3 ℃.
According to a preferred embodiment, in step (2), the asphalt is at least one selected from the group consisting of 200# asphalt, 90# asphalt, and 70# asphalt.
Preferably, the condition of the first contact at least satisfies: under the condition of stirring, the rotating speed is 800-1200r/min, the temperature is 130-150 ℃, and the time is 0.5-2h.
According to a preferred embodiment, in step (2), the operation of the first contact specifically comprises: under the stirring condition of the rotating speed of 800-1200r/min, firstly heating the asphalt to the temperature of 130-150 ℃ for first contact, and the heating rate is 5-8 ℃/min, then adding the swollen SBS under the condition of heat preservation to carry out the first contact, so as to obtain the mixture I, wherein the time of the first contact is 0.5-2h.
Preferably, in the step (3), the anti-aging agent is at least one selected from the group consisting of an antioxidant 1010 and an anti-aging agent 3050.
Preferably, the petroleum resin is at least one selected from the group consisting of terpene resins, C5 petroleum resins, and C9 petroleum resins.
According to a preferred embodiment, the BL modifier is selected from at least one of polyethylene wax AC316A, polyethylene wax LD-808T, polyethylene wax TL-500C. The inventor finds that under the preferable condition, the method of the invention can provide guarantee for the thermo-oxidative aging resistance of the SBS waterproof roll prepared and formed under the condition of 140 ℃.
Preferably, the filler is selected from at least one of nano calcium carbonate, organic bentonite and organic diatomite.
Preferably, in the step (3), the second contacting condition at least satisfies: under the condition of stirring, the rotating speed is 800-1200r/min, the temperature is 130-150 ℃, and the time is 0.1-2h.
According to a preferred embodiment, in step (3), the operation of the second contacting specifically comprises: at the rotating speed of 800-1200r/min and the temperature of 130-150 ℃, adding petroleum resin, an anti-aging agent and a BL modifier into a reactor, carrying out first stirring for 0.5-1h, adding a filler, and carrying out second stirring for 0.5-1h to obtain the coating.
According to a preferred embodiment, step (4) of the present invention specifically comprises: coating the coating on the base fabric, then covering isolation materials on the upper surface and the lower surface of the coated base fabric, compacting, cooling, trimming and rolling to obtain the waterproof coiled material;
wherein the gram weight of the tire base fabric is 240-270g per square meter; the thickness of the coating is 0.8-1.5mm; the isolating material is a polyethylene film, and the thickness of the isolating material is 0.012-0.015mm; the thickness of the waterproof roll is 3-4.5mm.
More preferably, the tire base fabric is polyester tire base fabric which is dried after being subjected to oil immersion treatment.
Preferably, in the method of the present invention, the naphthenic oil is used in an amount of 11 to 14 parts by weight, the SBS modifier is used in an amount of 5.5 to 7.5 parts by weight, the asphalt is used in an amount of 50 to 56 parts by weight, the anti-aging agent is used in an amount of 0.05 to 0.10 parts by weight, the petroleum resin is used in an amount of 12 to 15 parts by weight, the BL modifier is used in an amount of 2.2 to 4 parts by weight, and the filler is used in an amount of 10 to 12 parts by weight, with respect to 100 parts by weight of the petroleum resin, with respect to 100 parts by weight of the coating material.
As mentioned above, the second aspect of the present invention provides a low temperature formable SBS modified asphalt waterproof coiled material prepared by the method of the first aspect.
As described above, the third aspect of the present invention provides the use of the SBS modified asphalt waterproofing membrane that can be formed at low temperature according to the second aspect in waterproofing for buildings.
The present invention will be described in detail below by way of examples. In the following examples, the raw materials used are all common commercial products unless otherwise specified.
Some of the starting materials and sources used in the following examples are as follows:
naphthenic oil: purchased from Utility Co., ltd, shanghai rock, under the brand name KN4010;
SBS modifier: purchased from LG chemical company under the brand number 411;
asphalt: 200# bitumen, available from north lunett, hey;
anti-aging agent: antioxidant 1010, available from basf under the designation 1010;
petroleum resin: terpene resin, purchased from cornus pauhoi resin limited, under the brand name SNT-1001;
BL modifier:
BL modifier I: polyethylene wax AC316A, available from Honeywell corporation under the designation 316A;
BL modifier II: polyethylene wax TL-500C, available from Guangdong Taili New Material science and technology Limited;
BL modifier III: NV-408P, available from Kominox New materials science and technology (Zhejiang) Inc., under the designation 007;
filling: nano calcium carbonate, purchased from shanxi huateng nano technology ltd, with an average particle size of 90nm;
a high-speed shear apparatus; purchased from southern Anhui Motor, inc., anhui, and having a model number of YE3VF250-4 V1.
In the following examples, each "part by weight" means 100g unless otherwise specified.
Preparation example 1
Preparation of swollen SBS G1:
under the stirring condition with the rotating speed of 800r/min, 11 parts by weight of naphthenic oil is firstly introduced into a high-speed shear apparatus to be heated to the mixing temperature of 140 ℃ for mixing I, the heating rate is 5 ℃/min, then 5.5 parts by weight of SBS modifier is added to be mixed II under the heat preservation condition for 1h, and the mixture is cooled to the room temperature to obtain the swollen SBS named G1, wherein the rotating speed of the mixed II is 1200r/min.
Preparation example 2
Preparation of swollen SBS G2:
under the stirring condition that the rotating speed is 1000r/min, firstly, 14 parts by weight of naphthenic oil is introduced into a high-speed shear apparatus to be heated to the mixing temperature of 180 ℃ for mixing I, the heating rate is 7 ℃/min, then, under the heat preservation condition, 5.5 parts by weight of SBS modifier is added for mixing II for 0.7h, and the mixed II is cooled to the room temperature to obtain the swollen SBS named as G2, wherein the rotating speed of the mixed II is 1300r/min.
Example 1:
the present embodiment is to illustrate that the waterproofing membrane provided by the present invention is performed with reference to the parameters in table 1, and specifically includes:
s1, carrying out first contact on the swollen SBS G1 and asphalt, and specifically comprising the following steps:
under the condition that the stirring speed is 1200r/min, firstly heating the asphalt to the temperature of 140 ℃ for first contact, wherein the heating rate is 5 ℃/min, and then adding the swollen SBS under the condition of heat preservation to perform the first contact to obtain the mixture I, wherein the time of the first contact is 1h;
s2, carrying out second contact on the mixture I, an age resister, a petroleum resin, a BL modifier (BL modifier I) and a filler, and specifically comprising the following steps:
adding petroleum resin, an anti-aging agent and a BL modifier into a reactor at a stirring speed of 1200r/min and a temperature of 140 ℃, performing first stirring for 0.5h, then adding a filler, and performing second stirring for 0.5h to obtain the coating;
s3, coating:
coating the coating on the tire base cloth which is dried after oil immersion treatment, then covering polyethylene films serving as isolating materials on the upper surface and the lower surface of the coated tire base cloth, compacting, cooling, trimming and rolling to obtain a waterproof coiled material with the thickness of 3mm, and naming the waterproof coiled material as P1;
wherein the gram weight of the tire base fabric is 260g/m 2 (ii) a The thickness of the coating paint is 1.2mm, and the thickness of the isolation material is 0.012mm.
Example 2
This example was carried out using the same process as in example 1, except that in step S1, swollen SBS G2 was used instead of swollen SBS G1, and the process parameters and addition were changed, with specific parameters being as shown in table 1;
a waterproofing membrane with a thickness of 3mm is obtained, which is named P2.
Example 3
The present example was carried out using the same process as in example 1, except that this example was carried out using BL modifier II instead of BL modifier I, and the process parameters were changed, with specific parameters referring to table 1;
a waterproofing membrane with a thickness of 3mm is obtained, which is named as P3.
Example 4
This example was carried out using the same procedure as in example 1, except that this example was carried out using BL modifier III instead of BL modifier I, with the specific parameters referred to in table 1;
a waterproofing membrane with a thickness of 3mm is obtained, which is named P4.
Comparative example 1
This comparative example was conducted by the same process as in example 1, except that, in step S1, the same parts by weight of the raw materials (naphthenic oil and modifier) for preparing swollen SBS as those in preparation example 1 were directly used instead of swollen SBS, wherein the first contact was specifically conducted by:
under the condition that the stirring speed is 1200r/min, firstly heating 50 parts by weight of 200# asphalt and 11 parts by weight of naphthenic oil to the first contact temperature of 140 ℃, and the heating rate is 5 ℃/min, then adding 5.5 parts by weight of SBS modifier under the condition of heat preservation and stirring for 1h to obtain the mixture I applied to the step S2.
A waterproofing membrane with a thickness of 3mm is obtained, designated DP1.
Comparative example 2
This comparative example was conducted by the same process as in example 1, except that in step S2 of this comparative example, no BL modifier was added, that is, the BL modifier was added in an amount of 0 part by weight.
A waterproofing membrane with a thickness of 3mm is obtained, designated DP2.
Comparative example 3
This comparative example was conducted by the same procedure as in example 1, except that, in step S1, the same parts by weight of oil-extended SBS as that of the swollen SBS of example 1 (manufacturer: liangrong, huizhou; brand: 1475, colloidal particle shape at 25 ℃ C., oil content: 31-36 wt%) was used in place of the swollen SBS.
A waterproofing membrane with a thickness of 3mm is obtained, designated DP3.
Test example 1
Samples of the web were cut according to standard GB 18242-2008 and part of the products in the above examples were tested for heat resistance, low temperature flexibility, seam peel strength, respectively, and the test results are shown in table 2.
TABLE 1
TABLE 2
According to the results, the method provided by the invention can prepare the waterproof coiled material capable of being formed at low temperature by a safe and environment-friendly method on the premise of ensuring the heat resistance and the joint peeling strength of the asphalt waterproof coiled material.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (10)
1. A method for preparing SBS modified asphalt waterproof coiled material is characterized by comprising the following steps:
(1) Mixing naphthenic oil and SBS modifier to obtain swollen SBS gel at 25 deg.c;
(2) Carrying out first contact on the swollen SBS and asphalt to obtain a mixture I;
(3) Carrying out second contact on the mixture I, an anti-aging agent, petroleum resin, a BL modifier and a filler to obtain a coating;
(4) Coating the coating on a base fabric to obtain the waterproof coiled material;
the temperature of the first contacting and the second contacting are each independently 120-160 ℃.
2. The method according to claim 1, wherein, in step (1), the temperature of the mixing is 140-230 ℃.
3. The process according to claim 2, wherein the naphthenic oil has a kinematic viscosity at 100 ℃ of 5-20 mPa-s; and/or
The melt index of the SBS modifier is 0.2-1.5g/10min.
4. The method according to claim 2, wherein in step (1), the mixing conditions at least satisfy: under the condition of stirring, the rotating speed is 800-1400r/min, the mixing temperature is 160-220 ℃, and the mixing time is 2.5-4.0h.
5. The method according to any one of claims 1 to 4, wherein in step (2), the asphalt is selected from at least one of 200# asphalt, 90# asphalt, 70# asphalt; and/or
The condition of the first contact at least satisfies: under the condition of stirring, the rotating speed is 800-1200r/min, the temperature is 130-150 ℃, and the time is 0.5-2h.
6. The method according to any one of claims 1 to 4, wherein, in the step (3), the anti-aging agent is at least one selected from the group consisting of an antioxidant 1010, an anti-aging agent 3050; and/or
The petroleum resin is at least one selected from terpene resin, C5 petroleum resin and C9 petroleum resin; and/or
The BL modifier is selected from at least one of polyethylene wax AC316A, polyethylene wax LD-808T and polyethylene wax TL-500C; and/or
The filler is selected from at least one of nano calcium carbonate, organic bentonite and organic diatomite.
7. The method according to any one of claims 1 to 4, wherein in step (3), the condition of the second contacting at least satisfies: under the condition of stirring, the rotating speed is 800-1200r/min, the temperature is 130-150 ℃, and the time is 0.1-2h.
8. The method according to any one of claims 2 to 4, wherein the naphthenic oil is used in an amount of 11 to 14 parts by weight, the SBS modifier is used in an amount of 5.5 to 7.5 parts by weight, the asphalt is used in an amount of 50 to 56 parts by weight, the anti-aging agent is used in an amount of 0.05 to 0.10 part by weight, the petroleum resin is used in an amount of 12 to 15 parts by weight, the BL modifier is used in an amount of 2.2 to 4 parts by weight, and the filler is used in an amount of 10 to 12 parts by weight, relative to 100 parts by weight of the paint.
9. The SBS modified asphalt waterproof coiled material capable of being formed at low temperature prepared by any one of the claims 1-8.
10. Use of the low temperature formable SBS modified asphalt waterproofing membrane of claim 9 in construction waterproofing.
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| CN112646380A (en) * | 2020-12-23 | 2021-04-13 | 江苏宝利路面材料技术有限公司 | SBS asphalt regenerant and preparation method thereof |
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