CN113801629A - Modified asphalt waterproof coiled material sizing material composition, modified asphalt waterproof coiled material sizing material, and preparation method and application thereof - Google Patents
Modified asphalt waterproof coiled material sizing material composition, modified asphalt waterproof coiled material sizing material, and preparation method and application thereof Download PDFInfo
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- CN113801629A CN113801629A CN202111205565.XA CN202111205565A CN113801629A CN 113801629 A CN113801629 A CN 113801629A CN 202111205565 A CN202111205565 A CN 202111205565A CN 113801629 A CN113801629 A CN 113801629A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2495/00—Presence of bitume
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of asphalt waterproof coiled materials, and discloses a modified asphalt waterproof coiled material sizing material composition, a modified asphalt waterproof coiled material sizing material, a preparation method and an application thereof, wherein the composition contains the following components which are stored in a mixing way or are respectively and independently stored: compounding asphalt, rubber operating oil, a plastomer modifier, an elastomer modifier and a filler; the compound asphalt comprises the following components in percentage by weight of 1: 4-9 of asphalt # 10 in combination with asphalt # 50; the flash point of the compound asphalt is more than or equal to 240 ℃, and the content of asphaltene is more than or equal to 23 wt%. The bonding force of the lapping of the waterproof coiled material prepared from the modified asphalt waterproof coiled material sizing material prepared from the composition provided by the invention and a concrete base surface and the lapping of the coiled material and the coiled material is stronger, and meanwhile, the waterproof coiled material also has excellent thermal aging low-temperature performance.
Description
Technical Field
The invention relates to the field of asphalt waterproof coiled materials, in particular to a modified asphalt waterproof coiled material sizing material composition, a modified asphalt waterproof coiled material sizing material, and a preparation method and application thereof.
Background
At present, when a modified asphalt polyester tire waterproof coiled material is prepared, 70# matrix asphalt or 90# matrix asphalt is usually used, and the produced waterproof coiled material has poor low-temperature cracking resistance after aging and poor bonding performance with a construction base surface.
A large amount of air holes are easily generated in the modified asphalt waterproof coiled material produced by the prior art, so that the appearance performance and the water impermeability of the coiled material are influenced, and the quality of the coiled material is increased after the coiled material is soaked in water.
CN102559135A discloses an asphalt self-adhesive, which comprises the following components in percentage by weight: 45-65% of asphalt, 16-25% of rubber oil, 5-15% of SBS, 1-6% of SBR, 1-6% of petroleum resin, 1-7% of EVA and 10-20% of talcum powder. This prior art can increase the combined strength of self-adhesive and polymer sheet layer, has reliable bonding firmness.
CN113025068A discloses modified waterproof asphalt and a preparation method thereof. The modified waterproof asphalt comprises the following components in percentage by weight: 50% -70% of matrix asphalt; 15 to 25 percent of rubber oil; 6 to 15 percent of EVA rubber powder; 5 to 12 percent of SBS rubber; 3 to 8 percent of Portland cement; 0.01 to 2 percent of silane coupling agent. The modified asphalt has excellent bonding strength and waterproof performance.
However, the above prior arts do not study the low temperature cracking resistance of the modified asphalt waterproof roll after aging.
Based on this, there is a need for a new modified asphalt waterproof coiled material.
Disclosure of Invention
The invention aims to overcome the defects of poor low-temperature cracking resistance and bonding property after aging and easy generation of a large number of air holes of the conventional modified asphalt waterproof coiled material.
In order to achieve the above object, a first aspect of the present invention provides a modified asphalt waterproof coil sizing composition, which comprises the following components stored in a mixed manner or independently:
compounding asphalt, rubber operating oil, a plastomer modifier, an elastomer modifier and a filler;
based on the total weight of the composition, the content of the compound asphalt is 50-60 wt%, the content of the rubber operating oil is 10-15 wt%, the content of the plastomer modifier is 5-10 wt%, the content of the elastomer modifier is 5-10 wt%, and the content of the filler is 13-30 wt%;
the compound asphalt comprises the following components in percentage by weight of 1: 4-9 of asphalt # 10 in combination with asphalt # 50; the flash point of the compound asphalt is more than or equal to 240 ℃, and the content of asphaltene is more than or equal to 23.0 wt%.
A second aspect of the present invention provides a process for preparing a modified asphalt waterproofing membrane sizing material, the process comprising: mixing the components of the modified asphalt waterproof coil sizing composition described in the first aspect; the step of mixing the components comprises:
(i) carrying out first mixing on the compound asphalt and the rubber operating oil to obtain a mixture I;
(ii) secondly mixing the mixture I and the component A, and controlling the conditions to obtain a mixture II with the average particle size of 100-300 mu m; the component A contains a plastomer modifier and an elastomer modifier;
(iii) carrying out third mixing on the mixture II and the component B; the component B contains a filler.
A third aspect of the present invention provides a modified asphalt waterproofing membrane sizing material prepared by the method described in the second aspect.
A fourth aspect of the present invention provides a use of the modified asphalt waterproofing membrane sizing material described in the third aspect in waterproofing membranes.
The invention adopts the following components in percentage by weight of 1: 4-9 of 10# asphalt and 50# asphalt; the flash point of the compound asphalt is more than or equal to 240 ℃, the content of the asphaltene is more than or equal to 23 wt%, and the rubber operating oil, the plastic modifier, the elastomer modifier and the filler are added according to a certain weight ratio, so that the composition with good processing performance is provided.
The bonding force of the lapping of the waterproof coiled material prepared by the modified asphalt waterproof coiled material sizing material prepared by the composition disclosed by the invention and a concrete base surface and the lapping of the coiled material and the coiled material is stronger, so that a better waterproof effect is achieved. Meanwhile, the waterproof coiled material obtained by preparation can avoid the generation of a large number of air holes, so that the problem that the coiled material is unqualified due to the increase of the quality of the waterproof coiled material after being soaked in water is effectively solved.
The method for preparing the modified asphalt waterproof coiled material rubber material has the advantages of short modification time and low modification temperature, so that the waterproof coiled material has excellent thermal aging low-temperature performance.
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 particularly advantageous herein.
As described above, the first aspect of the present invention provides a modified asphalt waterproof coil sizing composition, which contains the following components stored in a mixed manner or independently from each other:
compounding asphalt, rubber operating oil, a plastomer modifier, an elastomer modifier and a filler;
based on the total weight of the composition, the content of the compound asphalt is 50-60 wt%, the content of the rubber operating oil is 10-15 wt%, the content of the plastomer modifier is 5-10 wt%, the content of the elastomer modifier is 5-10 wt%, and the content of the filler is 13-30 wt%;
the compound asphalt comprises the following components in percentage by weight of 1: 4-9 of asphalt # 10 in combination with asphalt # 50; the flash point of the compound asphalt is more than or equal to 240 ℃, and the content of asphaltene is more than or equal to 23.0 wt%.
Preferably, the compounded asphalt is obtained by a method comprising the following steps:
(1) performing light component removal treatment on the No. 50 asphalt to obtain light component removed asphalt;
(2) in the presence of oxygen, controlling the dewaxing condition of the light asphalt to obtain dewaxed asphalt with wax content less than or equal to 1.2 wt%;
(3) mixing the dewaxed asphalt with the # 10 asphalt.
The inventor of the invention finds that the compound asphalt prepared by the method can enable the waterproof coiled material to have better adhesive property when being used for the waterproof coiled material.
Preferably, in the step (1), the condition of the light component removal treatment at least satisfies: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 130-280 ℃, and the heating rate is 1-3 ℃/min.
The temperature increase rate indicates the amount of change in temperature per unit time. The time for the light component removal treatment and the first mixing is the total time for the temperature to rise to the set temperature value. The manner of raising the temperature is not particularly limited by the present invention, and those skilled in the art can select the method by combining with the known techniques in the field, and the method of raising the temperature is provided as an example in the following of the present invention, and those skilled in the art should not be construed as limiting the present invention.
Preferably, in step (2), the dewaxing treatment is performed under conditions at least satisfying: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 250-280 ℃, and the time is 2-3 h.
Preferably, in step (3), the mixing conditions at least satisfy: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 170-180 ℃, and the time is 30-60 min.
Preferably, the aromatic hydrocarbon content of the rubber process oil is more than or equal to 60 wt%, and the density at 20 ℃ is 0.970-1.000kg/m3The pour point is 10-25 ℃. The inventionThe inventors have found that in this preferred case, the process time can be significantly reduced and the aging of the compounded asphalt and elastomer modifier can be avoided.
Preferably, the plastomer modifier is selected from at least one of EVA resin, APAO.
Preferably, the VA content in the EVA resin is more than or equal to 35 wt%.
Preferably, the elastomer modifier is selected from at least one of SBS, SIS, SEBS, SEPS and styrene butadiene rubber.
Preferably, the SBS is a granular star SBS with weight average molecular weight > 22 ten thousand.
Preferably, the filler is selected from at least one of talc, heavy calcium carbonate, light calcium carbonate, calcined kaolin.
As previously mentioned, a second aspect of the present invention provides a process for preparing a modified asphalt waterproofing coil stock, the process comprising: mixing the components of the modified asphalt waterproof coil sizing composition described in the first aspect; the step of mixing the components comprises:
(i) carrying out first mixing on the compound asphalt and the rubber operating oil to obtain a mixture I;
(ii) secondly mixing the mixture I and the component A, and controlling the conditions to obtain a mixture II with the average particle size of 100-300 mu m; the component A contains a plastomer modifier and an elastomer modifier;
(iii) carrying out third mixing on the mixture II and the component B; the component B contains a filler.
The inventor of the invention finds that when the sizing material prepared by the method is applied to the waterproof coiled material, the waterproof coiled material has better thermal aging low-temperature performance.
The amount and kind of each component involved in the second aspect of the present invention are the same as the content and kind of the corresponding component described in the first aspect of the present invention, and are not described herein again, and those skilled in the art should not be construed as limiting the present invention.
Preferably, the first mixing condition at least satisfies: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 130-180 ℃, and the heating rate is 1-3 ℃/min.
According to a preferred embodiment, in step (ii), the conditions of the second mixing are at least such that: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the vacuum degree is-0.08 MPa to-0.1 MPa, the temperature is 175-180 ℃ and the time is 2-2.5 h. The inventors have found that this preferred embodiment is effective in preventing thermo-oxidative aging of the components of the size composition.
According to another preferred embodiment, in step (iii), the third mixing condition at least satisfies: stirring is carried out under the conditions that the rotating speed of stirring is 1200-1400rpm, the temperature is 175-180 ℃, and the time is 40-60 min.
As previously mentioned, a third aspect of the present invention provides a modified asphalt waterproofing coil stock prepared by the method described in the second aspect above.
As mentioned above, a fourth aspect of the present invention provides a use of the modified asphalt waterproofing membrane sizing material described in the aforementioned third aspect in a waterproofing membrane.
The present invention will be described in detail below by way of examples. In the following examples, various raw materials used are commercially available ones unless otherwise specified.
10# asphalt: from the Fushan Ganfu Petroleum Fuel asphalt, Inc.
50# asphalt: from the Fushan Ganfu Petroleum Fuel asphalt, Inc.
Rubber process oil:
rubber process oil I: aromatic hydrocarbon content 62 wt%, density at 20 ℃ 0.980kg/m3Pour point 12 ℃, purchased from xiamen hao hai stone oil.
Rubber process oil II: aromatic hydrocarbon content 63 wt%, density at 20 deg.C of 0.985kg/m3Pour point 27 ℃ from Jingmen petrochemicals.
Plastomer modifier: EVA resin: a designation hot melt grade UL05540EH2 with a VA content of 36 wt% was purchased from exxon chemical company.
Elastomer modifier: SBS: designation 3414, weight average molecular weight 25 ten thousand, available from Liangrong chemical company.
Filling:
talc powder: from Yangshan Huameida New materials, Inc.
Heavy calcium carbonate: purchased from Guangdong Riwei Dare mining Co.
Preparation example 1: preparation of Compound Pitch I
(1) Performing light component removal treatment on No. 50 asphalt to obtain light component removed asphalt;
the conditions of the light component removal treatment are as follows: the stirring speed is 1400rpm, the initial temperature is 130 ℃, the heating rate is 2 ℃/min, and the termination temperature is 160 ℃;
(2) in the presence of oxygen, controlling the dewaxing condition of the light asphalt to obtain dewaxed asphalt with wax content of 1.2 wt%;
the dewaxing treatment conditions were: the stirring speed is 1400rpm, the temperature is 270 ℃, and the time is 2.5 h;
(3) mixing the dewaxed asphalt with the No. 10 asphalt to obtain compound asphalt I;
the mixing conditions are as follows: stirring at 1400rpm at 175 deg.C for 50 min;
the dosage weight ratio of 10# asphalt to 50# asphalt in the compound asphalt I is 1: 7, flash point 255 ℃ and asphaltene content 24.5 wt%.
Preparation example 2: preparation of Compound Pitch II
(1) Performing light component removal treatment on No. 50 asphalt to obtain light component removed asphalt;
the conditions of the light component removal treatment are as follows: the stirring speed is 1300rpm, the initial temperature is 130 ℃, the heating rate is 2 ℃/min, and the termination temperature is 240 ℃;
(2) in the presence of oxygen, controlling the dewaxing condition of the light asphalt to obtain dewaxed asphalt with wax content of 0.9 wt%;
the dewaxing treatment conditions were: the stirring speed is 1300rpm, the temperature is 260 ℃, and the time is 2 hours;
(3) mixing the dewaxed asphalt with the No. 10 asphalt to obtain compound asphalt II;
the mixing conditions are as follows: the stirring speed is 1300rpm, the temperature is 175 ℃, and the time is 50 min;
the dosage weight ratio of 10# asphalt to 50# asphalt in the compound asphalt II is 1: 7, flash point 252 ℃, asphaltene content 23.9 wt%.
Preparation example 3: preparation of Compound Pitch III
The present preparation example was carried out using the same procedure as in preparation example 1, except that in the present preparation example:
the dewaxing treatment in the step (2) is carried out under different conditions, specifically, the stirring speed is 1200rpm, the temperature is 240 ℃, and the time is 1.5 h; dewaxed pitch having a wax content of 2.1 wt.% was obtained.
Preparing to obtain compound asphalt III, wherein the dosage weight ratio of 10# asphalt to 50# asphalt in the compound asphalt III is 1: 7, flash point 245 ℃ and asphaltene content 23.5 wt.%.
Preparation example 4: preparation of Compound Pitch IV
The present preparation example was carried out using the same procedure as in preparation example 1, except that in the present preparation example:
the conditions of the light component removal treatment in the step (1) are different, the stirring speed is 1000rpm, the initial temperature is 130 ℃, the heating rate is 5 ℃/min, and the termination temperature is 230 ℃; obtaining the light asphalt.
Preparing to obtain compound asphalt IV, wherein the dosage weight ratio of 10# asphalt to 50# asphalt in the compound asphalt IV is 1: 7, flash point 230 ℃ and asphaltene content 22.5 wt.%.
Preparation example 5: preparation of Compound asphalt V
The present preparation example was carried out using the same procedure as in preparation example 1, except that in the present preparation example:
the using weight ratio of the 10# asphalt to the 50# asphalt is 1: 12, the other conditions were the same as in preparation example 1.
The compound asphalt V is prepared, and the flash point of the compound asphalt V is 246 ℃, and the asphaltene content is 23.2 wt%.
Example 1
This example illustrates the preparation of a modified asphalt waterproofing coil stock composition according to the present invention using the formulation and process parameters set forth in Table 1 and as described below.
The preparation method of the modified asphalt waterproof coiled material sizing material comprises the following steps:
(i) carrying out first mixing on the compound asphalt and the rubber operating oil to obtain a mixture I;
the conditions of the first mixing are as follows: the stirring speed is 1400rpm, the initial temperature is 130 ℃, the heating rate is 2 ℃/min, and the termination temperature is 180 ℃;
(ii) secondly, mixing the mixture I with a plastomer modifier and an elastomer modifier contained in the component A to obtain a mixture II; grinding the mixture II to obtain the mixture II with the average particle size of 200 mu m;
the conditions of the second mixing are as follows: the stirring speed is 1400rpm, the vacuum degree is-0.1 MPa, the temperature is 178 ℃, and the time is 2 hours;
(iii) thirdly mixing the mixture II with a filler contained in the component B to obtain the modified asphalt waterproof coiled material glue J1;
the third mixing conditions are as follows: the stirring speed was 1400rpm, the temperature was 175 ℃ and the time was 50 min.
Example 2
This example was carried out using the same procedure as example 1, except that in this example:
the formula and the process parameters of the adopted modified asphalt waterproof coil sizing material composition are different, and the specific reference is made in table 1.
The modified asphalt waterproof coiled material sizing material J2 is prepared.
Example 3
This example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 1, except that: and replacing the compound asphalt I and the like with the compound asphalt III to prepare the modified asphalt waterproof coiled material rubber material J3, which is specifically shown in Table 1.
Example 4
This example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 1, except that: and replacing the rubber operating oil I and the like with the rubber operating oil II to prepare a modified asphalt waterproof coil rubber material J4, which is specifically shown in Table 1.
Example 5
This example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 1, except that: step (ii) was carried out without vacuum-pumping, and the remaining conditions were the same as in example 1, to prepare modified asphalt waterproof coil material J5, see table 1 for details.
Comparative example 1
This comparative example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 1, except that: and replacing the compound asphalt I and the like with the compound asphalt IV to prepare the modified asphalt waterproof coil rubber DJ1, which is specifically shown in Table 1.
Comparative example 2
This comparative example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 1, except that: and replacing the compound asphalt I and the like with the compound asphalt V to prepare the modified asphalt waterproof coil rubber DJ2, which is specifically shown in Table 1.
Comparative example 3
This comparative example prepared a modified asphalt waterproofing coil stock using a formulation and method similar to example 2, except that: the amount of the EVA resin is 25g, and modified asphalt waterproof coil material DJ3 is prepared, specifically referring to Table 1.
Test example 1
The following performance tests were carried out on the waterproof rolls obtained using the modified asphalt waterproof roll stocks prepared in examples and comparative examples.
1. Low temperature cracking resistance after aging: the test was performed with reference to the GB18242-2008 standard.
2. Adhesive property: the test was carried out with reference to GB/T35467-2017 standard.
TABLE 1
TABLE 1
TABLE 2
The results in table 2 show that the bonding force between the waterproof roll material prepared from the modified asphalt waterproof roll material prepared from the composition provided by the invention and the concrete base surface and the bonding force between the waterproof roll material and the roll material in lap joint are stronger, and meanwhile, the waterproof roll material also has excellent thermal aging low-temperature performance. Moreover, the prepared waterproof coiled material can avoid the generation of a large number of air holes, so that the problem that the coiled material is unqualified due to the increase of the quality of the waterproof coiled material after being soaked in water is effectively solved.
In particular, as can be seen from the results in table 2, the waterproof roll prepared from the modified asphalt waterproof roll sizing material prepared from the composition provided by the invention has good viscosity, particularly higher peel strength with cement mortar, and is suitable for wet-laid waterproof rolls.
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. The modified asphalt waterproof coiled material sizing material composition is characterized by comprising the following components which are stored in a mixing way or are stored independently:
compounding asphalt, rubber operating oil, a plastomer modifier, an elastomer modifier and a filler;
based on the total weight of the composition, the content of the compound asphalt is 50-60 wt%, the content of the rubber operating oil is 10-15 wt%, the content of the plastomer modifier is 5-10 wt%, the content of the elastomer modifier is 5-10 wt%, and the content of the filler is 13-30 wt%;
the compound asphalt comprises the following components in percentage by weight of 1: 4-9 of asphalt # 10 in combination with asphalt # 50; the flash point of the compound asphalt is more than or equal to 240 ℃, and the content of asphaltene is more than or equal to 23.0 wt%.
2. The composition of claim 1, wherein the compounded asphalt is obtained from a process comprising the steps of:
(1) performing light component removal treatment on the No. 50 asphalt to obtain light component removed asphalt;
(2) in the presence of oxygen, controlling the dewaxing condition of the light asphalt to obtain dewaxed asphalt with wax content less than or equal to 1.2 wt%;
(3) mixing the dewaxed asphalt with the # 10 asphalt.
3. The composition of claim 2, wherein in step (1), the condition of the light component removal treatment at least satisfies: stirring is carried out under the conditions that the rotating speed of the stirring is 1300-1500rpm, the temperature is 130-280 ℃, and the heating rate is 1-3 ℃/min; and/or the presence of a gas in the gas,
in the step (2), the dewaxing treatment is performed under conditions at least satisfying: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 250-280 ℃, and the time is 2-3 h.
4. The composition according to claim 2 or 3, wherein in step (3), the mixing conditions at least satisfy: stirring is carried out under the conditions that the rotation speed of the stirring is 1300-1500rpm, the temperature is 170-180 ℃, and the time is 30-60 min.
5. The composition according to any one of claims 1 to 4, wherein the rubber process oil has an aromatic hydrocarbon content of 60 wt.% or more and a density of 0.970 to 1.000kg/m at 20 ℃3The pour point is 10-25 ℃; and/or the presence of a gas in the gas,
the plastomer modifier is selected from at least one of EVA resin and APAO.
6. The composition of any of claims 1-5, wherein the elastomer modifier is selected from at least one of SBS, SIS, SEBS, SEPS, styrene butadiene rubber; and/or the presence of a gas in the gas,
the filler is at least one of talcum powder, heavy calcium carbonate, light calcium carbonate and calcined kaolin.
7. A method for preparing a modified asphalt waterproof coiled material sizing material is characterized by comprising the following steps: mixing the components of the modified asphalt waterproofing coil stock composition of any one of claims 1 to 6; the step of mixing the components comprises:
(i) carrying out first mixing on the compound asphalt and the rubber operating oil to obtain a mixture I;
(ii) secondly mixing the mixture I and the component A, and controlling the conditions to obtain a mixture II with the average particle size of 100-300 mu m; the component A contains a plastomer modifier and an elastomer modifier;
(iii) carrying out third mixing on the mixture II and the component B; the component B contains a filler.
8. The method of claim 7, wherein in step (i), the first mixing condition is at least satisfied: stirring is carried out under the conditions that the rotating speed of the stirring is 1300-1500rpm, the temperature is 130-180 ℃, and the heating rate is 1-3 ℃/min; and/or the presence of a gas in the gas,
in step (ii), the second mixing conditions at least satisfy: stirring is carried out under the conditions that the rotating speed of the stirring is 1300-1500rpm, the vacuum degree is between minus 0.08MPa and minus 0.1MPa, the temperature is 175-180 ℃, and the time is 2-2.5 h; and/or the presence of a gas in the gas,
in step (iii), the third mixing condition at least satisfies: stirring is carried out under the conditions that the rotating speed of stirring is 1200-1400rpm, the temperature is 175-180 ℃, and the time is 40-60 min.
9. A modified asphalt waterproofing coil stock prepared by the method of claim 7 or 8.
10. Use of the modified asphalt waterproofing coil stock of claim 9 in waterproofing coils.
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Denomination of invention: Modified asphalt waterproof roll compound, modified asphalt waterproof roll compound, preparation method and application Effective date of registration: 20230104 Granted publication date: 20220607 Pledgee: Shandong Linyi Rural Commercial Bank Co.,Ltd. Pledgor: DEZHOU KESHUN BUILDING MAT Co.,Ltd. Registration number: Y2023980030153 |