CN109881792B - Elastomer modified asphalt waterproof coiled material - Google Patents
Elastomer modified asphalt waterproof coiled material Download PDFInfo
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Abstract
The invention provides an elastomer modified asphalt waterproof coiled material which comprises an elastomer modified asphalt layer, and the raw materials comprise: 100-140 parts of matrix asphalt, 68-75 parts of waste lubricating oil, 20-35 parts of brominated SBS, 38-55 parts of modifier and 35-60 parts of filler; the brominated SBS has white appearance color and no plastic sense, the bromine content is 74.5 percent, the viscosity is 5000-. The preparation method comprises weighing, preparing brominated SBS, mixing and oil immersion coating; the elastomer modified asphalt waterproof coiled material has the joint peeling strength of 3.1-3.5N/mm, the abrasion resistance of 10227-.
Description
Technical Field
The invention belongs to the technical field of waterproof materials, relates to an elastomer modified asphalt waterproof coiled material, and particularly relates to an elastomer modified asphalt waterproof coiled material and a preparation method thereof.
Background
The elastomer modified asphalt waterproof coiled material has good high temperature resistance, can be used at the temperature of-25-100 ℃, and has high elasticity, high fatigue resistance, high elongation of 1500 percent, high puncture resistance and high tearing resistance. It is suitable for cold area and industrial and civil building with great deformation and vibration.
The performance characteristics are as follows: the flexibility is good at low temperature, and no crack is generated when the temperature reaches-25 ℃; high heat resistance and no flow at 90 ℃. Good extensibility, long service life, simple construction, little pollution and the like. The product is suitable for waterproof engineering of I and II level buildings, in particular to waterproof engineering of buildings in low-temperature cold areas and with frequent structural deformation.
Chinese patent publication No. CN108749209A provides an elastomer modified asphalt waterproof roll, which sequentially comprises an isolation layer, an asphalt coating layer, a base layer, an asphalt coating layer, and an isolation layer. The raw materials of the asphalt coating comprise styrene-butadiene-styrene rubber modified asphalt, a softening agent, a filling agent and a defoaming agent. The elastomer modified asphalt waterproof coiled material has better weather resistance and high temperature resistance.
Chinese patent with application number CN201510912736.0 provides an environment-friendly elastomer modified asphalt waterproof coiled material, and the components of an environment-friendly elastomer modified asphalt layer are as follows by mass: 45-55 parts of low-smoke asphalt; 4-12 parts of SBS thermoplastic rubber; 1-4 parts of powdered styrene-butadiene rubber; 5-10 parts of natural asphalt master batch; 0-3 parts of a polybutylene elastomer; 5-10 parts of rubber operating oil; 0-2 parts of polyolefin additive; 0-2 parts of amide wax; 20-30 parts of 180-mesh talcum powder. Through the optimization and application of environment-friendly raw materials such as low-smoke asphalt, the low-temperature production process of the modified asphalt is realized, the generation and discharge of atmospheric pollutants such as non-methane total hydrocarbons and particulate matters in the production process of the elastomer modified asphalt waterproof coiled material are effectively reduced, and the pollution problem in the production process of the elastomer modified asphalt waterproof coiled material is thoroughly solved.
The prior elastomer modified asphalt waterproof coiled material also has the following defects: (1) the heat aging quality loss is large in the preparation process; (2) the peel strength and abrasion resistance cannot be improved at the same time; (3) the sound absorption and noise reduction functions are not provided, the ultraviolet resistance is weak, and the aging is easy.
In view of the above situation, the inventor of the present invention has conducted long-term research and summary on the preparation method of the modified asphalt waterproof roll material in practice for many years, and preferably selects an elastomer modified asphalt waterproof roll material and a preparation method thereof.
Disclosure of Invention
The invention provides an elastomer modified asphalt waterproof coiled material and a preparation method thereof, which aim to realize the following purposes:
(1) the elastomer modified asphalt waterproof coiled material provided by the invention has excellent sound absorption and noise reduction effects and ageing resistance, and is particularly suitable for exposed downtown buildings.
(2) The elastomer modified asphalt waterproof coiled material provided by the invention has the advantages of high joint peeling strength and strong abrasion resistance.
(3) The elastomer modified asphalt waterproof coiled material has high soluble substance content and low heat aging quality loss.
In order to solve the technical problems, the following technical scheme is adopted:
the utility model provides an elastomer modified asphalt waterproofing membrane, its characterized in that, elastomer modified asphalt waterproofing membrane, including isolation film layer, modified asphalt layer and jute cloth child base, wherein, elastomer modified asphalt layer, include: matrix asphalt, waste lubricating oil, brominated SBS, modifier and filler.
As a preferable technical scheme of the invention, the modified asphalt layer comprises the following components in parts by weight: 100-140 parts of matrix asphalt, 68-75 parts of waste lubricating oil, 20-35 parts of brominated SBS, 38-55 parts of modifier and 35-60 parts of filler.
As a preferred technical scheme of the invention, the brominated SBS has white appearance color and no plastic sense, the bromine content is 74.5%, the viscosity is 5000-10000cp, the molecular weight is 18000-20000, the thermal weight loss is 1%, 5% is 255%, the thermal weight loss is 10% is 261%, and the thermal weight loss is 50% 332 ℃.
As the preferable technical scheme of the invention, the mass ratio of the light calcium carbonate, the hexacyclic ring stone powder and the rubber powder is 10:1: 17.
As a preferable technical scheme of the invention, the hexacyclic ring stone powder has the diameter of 0-0.4 mu m and the length of less than 0.5 mu m, and Al2O315.80-19.70% of Fe2O30.11-0.58% of SiO2Content of 36.45-37.27%, K2The O content was 1.44%.
As a preferable technical scheme of the invention, the modifier is an antioxidant, paraffin and a flatting agent in a mass ratio of 2:5: 1.
As a preferable technical scheme of the invention, the base asphalt has a penetration degree of 80-100mm, a ductility of not less than 100cm, a softening point of 48.5 ℃ and a flash point of 327 ℃.
The invention also provides a preparation method of the elastomer modified asphalt waterproof coiled material, which is characterized in that,
the preparation method of the modified asphalt waterproof coiled material comprises the following steps: weighing, preparing brominated SBS, mixing and coating by oil immersion.
As a preferred technical scheme of the invention, the preparation of the brominated SBS comprises the steps of 1) adding 0.5g of co-stabilizer into 10g of commercially available SBS, placing the mixture under a magnetic stirrer for stirring, adding 0.2g of calcium carbonate powder, dispersing and grinding until D90 is less than or equal to 0.75um, performing ultrasonic-ultraviolet synergistic treatment for 15min under nitrogen flow, wherein the ultrasonic frequency is 85KHz, the power is 800W, the wavelength of ultraviolet light is 400nm, and the flow rate of the nitrogen flow is 8L/min;
2) treating for 12s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 1.4kV/cm to obtain primary electric field treatment liquid;
3) placing the electric field primary treatment liquid in a closed storage tank, adding 0.2g of calcium carbonate powder, mixing, dispersing and grinding until D90 is less than or equal to 0.75um, stirring for 20min under a magnetic stirrer, then treating for 20s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 2.0kV/cm to obtain electric field secondary treatment liquid, and removing the calcium carbonate powder by ultrafiltration treatment;
4) adding emulsifier sodium dodecyl sulfate, and stirring at 8900rad/min for 20min to obtain SBS miniemulsion;
the obtained SBS miniemulsion is analyzed by gel chromatography, and the weight average molecular weight range is 18000-20000;
5) adding 200g of DCM into the SBS miniemulsion obtained in the step, stirring, transferring into a 1000ml four-mouth bottle, dissolving at normal temperature, rapidly cooling to 11-13 ℃, and dropwise adding Br2Decolorizing and removing bromine, washing, extracting and drying.
As a preferred technical scheme of the invention, the commercially available SBS has a molecular formula of (C)6H5C2H3)m(C4H6) n, wherein m: n =5: 8;
the co-stabilizer is a mixture of styrene and 1, 3-butadiene, and the molar ratio of the styrene to the 1, 3-butadiene is 5: 8.
By adopting the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the elastomer modified asphalt waterproof coiled material provided by the invention has excellent sound absorption and noise reduction effects and ageing resistance, the sound absorption coefficient is 0.40-0.41, and the ageing resistance reaches level 1.
(2) The elastomer modified asphalt waterproof coiled material has the joint peeling strength of 3.1-3.5N/mm and the abrasion resistance of 10227-.
(3) The elastomer modified asphalt waterproof coiled material has soluble content of 2290-.
Detailed Description
Example 1 elastomer-modified asphalt waterproof roll and preparation method thereof
The invention relates to an elastomer modified asphalt waterproof coiled material, which comprises an isolation film layer, an elastomer modified asphalt layer and a jute cloth base,
the elastomer modified asphalt layer comprises the following raw materials: matrix asphalt, waste lubricating oil, brominated SBS, modifier and filler;
the matrix asphalt has penetration degree of 80-100mm, ductility of not less than 100cm, softening point of 48.5 ℃ and flash point of 327 ℃.
The brominated SBS has white appearance color and no plastic sense, the bromine content is 74.5%, the viscosity (250 ℃) is 5000-10000cp, the molecular weight is 18000-20000, the thermal weight loss is 1% 252 ℃, the thermal weight loss is 5% 255 ℃, the thermal weight loss is 10% 261 ℃ and the thermal weight loss is 50% 332 ℃.
The modifier is an antioxidant, paraffin and a flatting agent, and the mass ratio is 2:5: 1;
the filler comprises light calcium carbonate, hexacyclic ring stone powder and rubber powder, and the mass ratio is 10:1: 17; the rubber powder is natural rubber powder and styrene butadiene rubber powder; the hexacyclic ring stone powder has the diameter of 0-0.4 mu m and the length of less than 0.5 mu m, and Al2O315.80-19.70% of Fe2O30.11-0.58% of SiO2Content of 36.45-37.27%, K2The O content was 1.44%.
Specifically, the raw materials comprise, by weight: 100 parts of matrix asphalt, 75 parts of waste lubricating oil, 20 parts of brominated SBS, 55 parts of modifier and 35 parts of filler.
The invention relates to an elastomer modified asphalt waterproof coiled material which comprises an isolation film layer, a modified asphalt layer and a jute cloth base, and specifically comprises a lower isolation film layer, a lower modified asphalt layer, a jute cloth base, an upper modified asphalt layer and an upper isolation film layer from bottom to top in sequence;
the invention discloses a preparation method of an elastomer modified asphalt waterproof coiled material, which comprises the following steps:
(1) weighing
The components are weighed according to the parts by weight in the examples.
(2) Preparation of brominated SBS
1) Adding 10g of commercially available SBS into 0.5g of co-stabilizer, placing the mixture under a magnetic stirrer for stirring, adding 0.2g of calcium carbonate powder, dispersing and grinding the mixture until D90 is less than or equal to 0.75um, performing ultrasonic-ultraviolet synergistic treatment for 15min under nitrogen flow, wherein the ultrasonic frequency is 85KHz, the power is 800W, the wavelength of ultraviolet light is 400nm, and the flow rate of the nitrogen flow is 8L/min;
in this example, the commercially available SBS is of the formula (C)6H5C2H3)m(C4H6) n, wherein m: n =5: 8;
the co-stabilizer is a mixture of styrene and 1, 3-butadiene, and the molar ratio of the styrene to the 1, 3-butadiene is 5: 8;
2) treating for 12s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 1.4kV/cm to obtain primary electric field treatment liquid;
3) placing the electric field primary treatment liquid in a closed storage tank, adding 0.2g of calcium carbonate powder, mixing, dispersing and grinding until D90 is less than or equal to 0.75um, stirring for 20min under a magnetic stirrer, then treating for 20s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 2.0kV/cm to obtain electric field secondary treatment liquid, and removing the calcium carbonate powder by ultrafiltration treatment;
4) adding emulsifier sodium dodecyl sulfate, and stirring at 8900rad/min for 20min to obtain SBS miniemulsion;
the SBS miniemulsion obtained has a weight average molecular weight range of 18000-20000 by gel chromatography analysis.
5) Adding 200g of DCM into the SBS miniemulsion obtained in the step, stirring, transferring into a 1000ml four-mouth bottle, dissolving at normal temperature, rapidly cooling to 11-13 ℃, cooling at the speed of 4 ℃/min, and dropwise adding equimolar Br2And finishing dropping within 1.5 hours, preserving the temperature for 1.5 hours, adding 10% sodium bisulfite solution, finishing the reaction, decoloring, removing bromine, washing, extracting and drying to obtain the product.
(3) Mixing the raw materials
Heating the matrix asphalt to 135 ℃, adding the waste lubricating oil and the brominated SBS, mixing for 50 minutes, adding the modifier, and stirring for 20 minutes.
(4) Oil immersion coating
Adding filler, mixing, cooling to 120 deg.C, stirring for 1 hr, spreading the jute cloth, spreading in oil bath, coating with oil, controlling the thickness of the coating, cooling, coating with isolating film, curling, packaging, and storing.
Example 2-3 elastomer-modified asphalt waterproof roll and preparation method thereof
Examples 2-3 on the basis of the examples, only the elastomer modified asphalt layer is changed by the following weight parts:
example 2: 124 parts of matrix asphalt, 73 parts of waste lubricating oil, 34 parts of brominated SBS, 51 parts of modifier and 40 parts of filler.
Example 3: 140 parts of matrix asphalt, 68 parts of waste lubricating oil, 35 parts of brominated SBS, 38 parts of modifier and 60 parts of filler.
The detection results of the elastomer modified asphalt waterproof coiled material obtained in the embodiments 1 to 3 of the invention according to the detection method specified by the national standard are shown in the following table:
table 1: the result of the detection
Remarking: the average sound absorption coefficient is the average sound absorption coefficient at medium and low frequencies.
From the above data, it can be seen that: the various performances of the elastomer modified asphalt waterproof coiled material of the embodiments 1 to 3 of the invention are greatly improved at the same time:
the elastomer modified asphalt waterproof coiled material has high appearance quality, uniform, fine and smooth surface and no phenomena of holes, edges, cracks and pimples; no odor, no taste and no toxicity; the thickness deviation is small, and the thickness deviation is within the range of +/-0.03 mm.
The elastomer modified asphalt waterproof coiled material provided by the invention has excellent sound absorption and noise reduction effects, strong low-temperature flexibility and ageing resistance, the sound absorption coefficient is 0.40-0.41, and the ageing resistance reaches level 1.
All percentages used herein are weight percentages and all ratios described herein are mass ratios, unless otherwise indicated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An elastomer modified asphalt waterproof coiled material is characterized in that,
elastomer modified asphalt waterproofing membrane, including isolation rete, modified asphalt layer and jute cloth child base, wherein, elastomer modified asphalt layer, include: matrix asphalt, waste lubricating oil, brominated SBS, modifier and filler;
the preparation of the brominated SBS comprises the steps of 1) adding 0.5g of co-stabilizer into 10g of commercially available SBS, placing the mixture under a magnetic stirrer for stirring, adding 0.2g of calcium carbonate powder, dispersing and grinding the mixture until D90 is less than or equal to 0.75um, performing ultrasonic-ultraviolet synergistic treatment for 15min under nitrogen flow, wherein the ultrasonic frequency is 85KHz, the power is 800W, the wavelength of ultraviolet light is 400nm, and the flow rate of the nitrogen flow is 8L/min;
2) treating for 12s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 1.4kV/cm to obtain primary electric field treatment liquid;
3) placing the electric field primary treatment liquid in a closed storage tank, adding 0.2g of calcium carbonate powder, mixing, dispersing and grinding until D90 is less than or equal to 0.75um, stirring for 20min under a magnetic stirrer, then treating for 20s by adopting a pulsed electric field with the frequency of 12Hz and the electric field intensity of 2.0kV/cm to obtain electric field secondary treatment liquid, and removing the calcium carbonate powder by ultrafiltration treatment;
4) adding emulsifier sodium dodecyl sulfate, and stirring at 8900rad/min for 20min to obtain SBS miniemulsion;
the obtained SBS miniemulsion is analyzed by gel chromatography, and the weight average molecular weight range is 18000-20000;
5) adding 200g of DCM into the SBS miniemulsion obtained in the step, stirring, transferring into a 1000ml four-mouth bottle, dissolving at normal temperature, rapidly cooling to 11-13 ℃, and dropwise adding Br2Decolorizing and removing bromine, washing, extracting and drying.
2. The elastomer modified asphalt waterproofing membrane according to claim 1,
the modified asphalt layer comprises the following components in parts by weight: 100-140 parts of matrix asphalt, 68-75 parts of waste lubricating oil, 20-35 parts of brominated SBS, 38-55 parts of modifier and 35-60 parts of filler.
3. The elastomer modified asphalt waterproofing membrane according to claim 1,
the brominated SBS has white appearance color and no plastic sense, the bromine content is 74.5 percent, the viscosity is 5000-.
4. The elastomer modified asphalt waterproofing membrane according to claim 1,
the filler is light calcium carbonate, hexacyclic stone powder and rubber powder, and the mass ratio is 10:1: 17.
5. The elastomer modified asphalt waterproofing membrane according to claim 1,
the hexacyclic ring stone powder has the diameter of 0-0.4 mu m and the length of less than 0.5 mu m, and Al2O315.80-19.70% of Fe2 O3Content (wt.)0.11-0.58% of SiO2Content of 36.45-37.27%, K2The O content was 1.44%.
6. The elastomer modified asphalt waterproofing membrane according to claim 1,
the modifier is an antioxidant, paraffin and a flatting agent, and the mass ratio of the modifier to the flatting agent is 2:5: 1.
7. The elastomer modified asphalt waterproofing membrane according to claim 1,
the matrix asphalt has penetration degree of 80-100mm, ductility of not less than 100cm, softening point of 48.5 ℃ and flash point of 327 ℃.
8. The elastomer modified asphalt waterproofing membrane according to claim 1,
the preparation method of the waterproof roll comprises the following steps: weighing, preparing brominated SBS, mixing and coating by oil immersion.
9. The elastomer modified asphalt waterproofing membrane according to claim 1,
the molecular formula of the commercially available SBS is (C)6H5C2H3)m(C4H6)nWherein m: n =5: 8;
the co-stabilizer is a mixture of styrene and 1, 3-butadiene, and the molar ratio of the styrene to the 1, 3-butadiene is 5: 8.
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| JP4856460B2 (en) * | 2006-03-31 | 2012-01-18 | 昭和シェル石油株式会社 | Asphalt composition |
| CN107474165B (en) * | 2017-08-03 | 2019-05-28 | 山东日兴新材料股份有限公司 | A kind of synthetic method of high-heat stability bromized SBS |
| CN108047731A (en) * | 2017-11-21 | 2018-05-18 | 广西武宣金牌防水材料科技有限公司 | Polymer modified asphalt waterproof roll and its production method |
| CN108407424A (en) * | 2018-02-08 | 2018-08-17 | 寿光市防水行业协会 | A kind of SBS elastomer modified asphalt waterproof rolls and preparation method thereof |
| CN109137554A (en) * | 2018-08-28 | 2019-01-04 | 天津市禹红建筑防水材料有限公司 | A kind of anti-aging elastomer modified asphalt waterproof roll and preparation method |
| CN109180881A (en) * | 2018-09-07 | 2019-01-11 | 山东日兴新材料股份有限公司 | A kind of preparation method of highly effective flame-retardant polystyrene |
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