CN113265152B - Waterproof asphalt and waterproof coiled material - Google Patents
Waterproof asphalt and waterproof coiled material Download PDFInfo
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- CN113265152B CN113265152B CN202110534845.9A CN202110534845A CN113265152B CN 113265152 B CN113265152 B CN 113265152B CN 202110534845 A CN202110534845 A CN 202110534845A CN 113265152 B CN113265152 B CN 113265152B
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
- D06N5/003—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch coated with bitumen
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The invention provides waterproof asphalt, which comprises the following components in parts by weight: 40-70 parts of No. 70 asphalt; 40-70 parts of base oil; the No. 70 asphalt is residual oil obtained by distilling the blended crude oil; the base oil comprises: reducing wax oil; reducing wax oil of three lines; coker gas oil; the second-line reduced wax oil and the third-line reduced wax oil are side-line fractions obtained by the mixed crude oil in vacuum distillation; the blended crude oil comprises: crude oil and coker gas oil. The invention provides waterproof asphalt, which adopts a crude oil blending method and a base oil compounding method to be coordinated and matched with each other, overcomes the defects of waterproof asphalt raw materials and base oil in the traditional sense, solves the technical difficulties of unstable performance indexes and conflicting high and low temperature performances of No. W200 waterproof asphalt, and effectively improves the technical problems of low temperature performance, stripping performance, heat resistance and the like of a self-adhesive waterproof coiled material based on No. W200 waterproof asphalt. The invention also provides a waterproof roll.
Description
Technical Field
The invention belongs to the technical field of asphalt, and particularly relates to waterproof asphalt and a waterproof coiled material.
Background
The asphalt-based self-adhesive coiled material takes a modifier, asphalt, softened oil and the like as raw materials, has the advantages of strong cohesiveness, good self-healing property, excellent extensibility, stable high and low temperature performance and the like, and is popularized and applied in the building waterproof industry and rapidly developed. It is also one of the coil products important in the field of waterproof materials so far. Along with the expansion of the service of waterproof enterprises, the demand on the asphalt-based self-adhesive coiled material is increasing. Therefore, the demand of W200 waterproof asphalt as the main raw material of self-adhesive coiled materials is increasing, and the requirement of the market for the stability of the performance of W200 waterproof asphalt is also increasing.
Blending crude oil or petroleum asphalt by adopting base oil is one of the means which are used more at present. However, the types and the addition proportion of the base oil have important influences on the product performance and the production safety of the waterproof W200 asphalt. The common base oil comprises three-line oil, four-line oil, blend oil, soybean oil and the like, the saturation fraction in the base oil is beneficial to improving the low-temperature performance of the W200 waterproof asphalt, but the saturation fraction is more, and the technical indexes of the W200 waterproof asphalt, such as softening point, penetration degree, high-temperature performance and the like, are not good. Therefore, how to obtain a W200 waterproof asphalt product with good low-temperature performance and the technical indexes of high-temperature performance, softening point, penetration degree and the like which are not reduced meets the requirement of the asphalt-based waterproof coiled material is the key point of the current technical breakthrough.
Disclosure of Invention
In view of the above, the present invention aims to provide waterproof asphalt and a waterproof roll, wherein the waterproof asphalt provided by the present invention has good low temperature performance, stable high temperature performance, stable softening point and stable penetration degree, is suitable for the construction of the waterproof roll in summer, and avoids the construction difficulty caused by asphalt flow due to high temperature in summer.
The invention provides waterproof asphalt, which comprises the following components in parts by weight:
40-70 parts of No. 70 asphalt;
40-70 parts of base oil;
the No. 70 asphalt is residual oil obtained by distilling the blended crude oil;
the base oil comprises: reducing wax oil in two lines; reducing wax oil of three lines; coker gas oil;
the second-line reduced wax oil and the third-line reduced wax oil are side line fractions obtained by the mixed crude oil in vacuum distillation;
the blended crude oil comprises:
crude oil and coker gas oil.
Preferably, the weight part of the minus wax oil is 10-30 parts; the weight part of the three-line reducing wax oil is 2-10 parts; the weight portion of the coking waxy oil is 0-10.
Preferably, the reduced wax oil is distillate oil with a distillation range of 325-440 ℃;
the reduced paraffin oil is distillate oil with the distillation range of 395-440 ℃.
Preferably, the mass percentage of saturated components in the second wax reducing oil is 60-80%; the pour point of the second-line wax reducing oil is less than or equal to 15 ℃; the kinematic viscosity of the reduced wax oil at 40 ℃ is 20-60 mPa & s.
Preferably, the mass percentage of the saturated components in the three-line-decreasing wax oil is 50-70%; the pour point of the three-line reducing wax oil is less than or equal to 27 ℃; the kinematic viscosity of the third-line-reduced wax oil at 40 ℃ is 60-130 mPa & s.
Preferably, the weight part of the crude oil is 85-110 parts; the weight portion of the coking waxy oil is 0-20.
Preferably, the crude oil is selected from naphthenic base crude oil and/or intermediate base crude oil;
the coking wax oil is prepared by carrying out prolonged coking thermal cracking on vacuum residue.
The invention provides a waterproof roll, which comprises:
a substrate;
a coating layer disposed on a surface of the substrate;
the coating layer comprises the following components in parts by weight:
preferably, the petroleum resin is C5 petroleum resin.
Preferably, the stone powder is calcium silicate powder.
The invention provides W200 waterproof asphalt for waterproof coiled materials, which adopts a crude oil blending method and a base oil compounding method to be coordinated and matched with each other, overcomes the defects of waterproof asphalt raw materials and base oil in the traditional sense, solves the technical difficulties that the performance indexes of the W200 waterproof asphalt are unstable and the high and low temperature performances are in conflict, and effectively improves the technical problems of low temperature performance, stripping performance, heat resistance and the like of self-adhesive waterproof coiled materials based on the W200 waterproof asphalt. Meanwhile, the production stability of the W200 waterproof asphalt is improved, the raw material requirements of the asphalt-based waterproof coiled material market can be better met, and the production efficiency is improved. In addition, the invention also provides a mode and a method for further research and development of the waterproof asphalt, and also provides a certain reference value for high added value utilization of low added value products of refineries, such as coker gas oil, residue oil and the like.
The W200 waterproof asphalt raw material for the waterproof coiled material provided by the invention can enable the heat resistance of the waterproof coiled material to reach more than 88 ℃, the low-temperature flexibility limit to reach below-26 ℃, the peel strength between the coiled material and the coiled material to reach 1.8N/mm and above, and the peel strength between the coiled material and an aluminum plate to reach 2.5N/mm and above.
Drawings
FIG. 1 is a process flow chart of the preparation of waterproof asphalt and waterproof coiled material according to the embodiment of the invention;
fig. 2 is a schematic view of a mold for manufacturing a waterproof roll according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other examples, which may be modified or appreciated by those of ordinary skill in the art based on the examples given herein, are intended to be within the scope of the present invention. It should be understood that the embodiments of the present invention are only for illustrating the technical effects of the present invention, and are not intended to limit the scope of the present invention. In the examples, the methods used are conventional methods unless otherwise specified.
The invention provides waterproof asphalt, which comprises the following components in parts by weight:
40-70 parts of No. 70 asphalt;
40-70 parts of base oil;
the No. 70 asphalt is residual oil obtained by distilling the blended crude oil;
the base oil comprises: reducing wax oil; reducing wax oil of three lines; coker gas oil;
the second-line reduced wax oil and the third-line reduced wax oil are side line fractions obtained by the mixed crude oil in vacuum distillation;
the blended crude oil comprises:
crude oil and coker gas oil.
In the invention, the weight part of the No. 70 asphalt is preferably 50-60 parts, and more preferably 55 parts; the No. 70 asphalt is residual oil obtained by distilling the blended crude oil; the distillation is preferably atmospheric distillation or vacuum distillation.
In the present invention, the blended crude oil preferably comprises, in parts by weight:
85-110 parts of crude oil;
0-20 parts of coking wax oil.
In the invention, the weight part of the crude oil is preferably 90-105 parts, and more preferably 95-100 parts; the crude oil is preferably selected from naphthenic crude oil and/or intermediate base crude oil.
In the invention, the weight part of the coker gas oil is preferably 5-15 parts, more preferably 8-12 parts, and most preferably 10 parts; the coker gas oil is preferably prepared from vacuum residue through prolonged coking thermal cracking.
In the present invention, the vacuum residue is preferably a bottom oil of crude oil subjected to vacuum distillation.
In the present invention, the process for extended coking thermal cracking preferably comprises:
heating the vacuum residue to over 500 deg.c, transferring to coke tower for deep heating cracking reaction to prolong the thermal cracking period.
In the present invention, the method for preparing the blended crude oil preferably comprises:
and mixing the crude oil and the coker gas oil to obtain blended crude oil.
In the present invention, the preparation method of the No. 70 asphalt preferably comprises:
and (3) distilling the blended crude oil to obtain residual oil.
In the present invention, the No. 70 asphalt preferably comprises:
0 to 15 wt% of asphaltenes;
15-25 wt% of saturates;
35 to 45 wt% of an aromatic component;
20-30 wt% of a gum;
< 3.0 wt% wax.
In the invention, the weight content of the asphaltene is preferably 3-12%, more preferably 5-10%, and most preferably 6-8%; the mass content of the saturated component is preferably 18-22%, and more preferably 20%; the mass content of the aromatic component is preferably 38-42%, and more preferably 40%; the mass content of the colloid is preferably 22-28%, more preferably 24-26%, and most preferably 25%; the mass content of the wax is preferably 0.5-2.5%, and more preferably 1-2%. Most preferably 1.5%.
In the invention, the penetration degree of the No. 70 asphalt is preferably 60-80 dmm, more preferably 65-75 dmm, and most preferably 70 dmm; the softening point of the No. 70 asphalt is preferably not less than 46 ℃, more preferably 46-60 ℃, more preferably 50-55 ℃, and most preferably 52-53 ℃.
In the invention, the base oil comprises the following components in parts by weight:
10-30 parts of minus wax oil;
2-10 parts of a three-line-decreasing wax oil;
0-10 parts of coking wax oil.
In the invention, the weight part of the wax reducing oil is preferably 15-25 parts, more preferably 18-22 parts, and most preferably 20 parts; the second wax reducing oil is a side line fraction obtained by the mixed crude oil in vacuum distillation; the blended crude oil is consistent with the blended crude oil in the technical scheme, and the details are not repeated.
In the present invention, the preparation method of the reduced wax oil preferably comprises:
the mixed crude oil is distilled oil at the side line of 325-440 ℃ distillation range in the vacuum distillation process, more preferably 350-400 ℃, and most preferably 360-380 ℃.
In the invention, the mass percentage of the saturated components in the wax reducing oil is preferably 60-80%, more preferably 65-75%, and most preferably 70%; the pour point of the second-line-reducing wax oil is preferably less than or equal to 15 ℃, and more preferably 13-15 ℃; the kinematic viscosity of the reduced wax oil at 40 ℃ is preferably 20-60 mPa & s, more preferably 30-50 mPa & s, and most preferably 40mPa & s.
In the invention, the alkali three-line wax oil is preferably 3-8 parts by weight, more preferably 4-6 parts by weight, and most preferably 5 parts by weight.
In the invention, the third line reduced wax oil is preferably a side line fraction obtained in the vacuum distillation process of blended crude oil; the blended crude oil is consistent with the blended crude oil in the technical scheme, and the details are not repeated.
In the present invention, the preparation method of the third line-reduced wax oil preferably comprises:
the mixed crude oil is a side distillate in the distillation range of 395-440 ℃ in the vacuum distillation process, more preferably 400-430 ℃, more preferably 410-420 ℃ and most preferably 415 ℃.
In the invention, the mass content of saturates in the three-line-reduced wax oil is preferably 50-70%, more preferably 55-65%, and most preferably 60%; the pour point of the three-line wax reducing oil is preferably less than or equal to 27 ℃, and more preferably 23-26 ℃; the kinematic viscosity of the three-line wax reducing oil at 40 ℃ is preferably 60-130 mPa & s, more preferably 70-120 mPa & s, more preferably 80-110 mPa & s, and most preferably 90-100 mPa & s.
In the invention, the weight part of the coker gas oil is preferably 2-8 parts, more preferably 3-6 parts, and most preferably 4-5 parts. In the present invention, the coker gas oil is the same as the coker gas oil in the above technical scheme, and is not described herein again.
In the present invention, the method for preparing the base oil preferably comprises:
and mixing the second-line wax reducing oil, the third-line wax reducing oil and the coking wax oil to obtain the base oil.
In the invention, the mixing is preferably carried out at room temperature, and the room temperature is preferably 18-26 ℃ of atmospheric environment temperature, and more preferably 20-25 ℃; the room-temperature stirring time is preferably 0.3-0.7 h, more preferably 0.4-0.6 h, and most preferably 0.5 h.
In the invention, the flash point of the base oil is preferably not less than 210 ℃, more preferably more than 220 ℃, more preferably 220-280 ℃, more preferably 230-270 ℃, more preferably 240-260 ℃, and most preferably 250 ℃.
The waterproof asphalt provided by the invention adopts a method of mutually coordinating a crude oil blending method and a base oil blending method, improves the performance index of a W200 waterproof asphalt product in the whole process from crude oil refining to waterproof asphalt blending, and ensures high stability of performance. In the process of crude oil refining production, the coking wax oil is adopted to blend the crude oil, so that the high-temperature performance of the produced asphalt can be effectively improved, and the technical indexes such as softening point and the like are improved. In the base oil compounding process, the second-line wax oil and the third-line wax oil are compounded, and the coking wax oil is added according to a proper proportion, so that the low-temperature performance of the W200 waterproof asphalt can be improved. In addition, the second-line wax reducing oil and the third-line wax reducing oil obtained by the refining of the blended crude oil have high affinity with asphalt and coking wax oil, and are not easy to segregate. The invention can effectively solve the technical difficulties that the performance index of the W200 waterproof asphalt is unstable and the high and low temperature performance conflicts, and the technical problems of the low temperature performance, the stripping performance, the heat resistance and the like of the self-adhesive asphalt-based waterproof coiled material. In addition, the invention greatly improves the production stability of the W200 waterproof asphalt, can better meet the raw material requirement of the asphalt-based waterproof roll market, ensures the stable supply of the raw materials and improves the production efficiency.
The preparation method of the waterproof asphalt provided by the embodiment of the invention has the process flow as shown in figure 1, and comprises the following steps:
mixing No. 70 asphalt with base oil, heating and stirring to obtain the waterproof asphalt.
In the invention, the heating and stirring temperature is preferably 100-140 ℃, more preferably 110-130 ℃, more preferably 115-125 ℃, and most preferably 120 ℃; the heating and stirring time is preferably not less than 20min, and the materials are fully and uniformly mixed.
In the present invention, the preparation method of the base oil is the same as that of the base oil in the above technical scheme, and is not described herein again.
The invention provides a waterproof roll, which comprises:
a substrate;
a coating layer disposed on a surface of the substrate;
the coating layer comprises the following components in parts by weight:
the self-adhesive asphalt-base water-proof coiled material (water-proof coiled material) is made up by using water-proof asphalt as base material, SBS and SBR as modifying agent and using petroleum resin, rubber powder and stone powder as additive and using the above-mentioned materials as surface materials of fibre fabric, polyester felt and base paper as matrix.
In the present invention, the substrate is preferably selected from a fiber fabric, a polyester felt or a base paper.
In the invention, the thickness of the coating layer is preferably 2-4 mm, and more preferably 3 mm.
In the invention, the weight part of the waterproof asphalt is preferably 160-200 parts, more preferably 170-190 parts, and most preferably 180 parts. In the invention, the waterproof asphalt is consistent with the waterproof asphalt in the technical scheme, and the description is omitted.
In the invention, the weight part of the No. 70 asphalt is preferably 130 to 180 parts, more preferably 150 to 170 parts, and most preferably 160 parts. In the present invention, the No. 70 asphalt is the same as the No. 70 asphalt described in the above technical solution, and is not described herein again.
In the present invention, the weight part of the SBS (styrene-butadiene-styrene block copolymer) is preferably 8 to 16 parts, more preferably 10 to 14 parts, and most preferably 12 to 13 parts.
In the present invention, the weight part of the SBR (styrene butadiene rubber) is preferably 12 to 18 parts, more preferably 14 to 16 parts, and most preferably 15 parts.
In the invention, the weight part of the petroleum resin is preferably 8-12 parts, and more preferably 10 parts. In the present invention, the petroleum resin is preferably a C5 petroleum resin.
In the invention, the rubber powder is preferably 50-65 parts by weight, more preferably 55-60 parts by weight and most preferably 56-58 parts by weight. In the invention, the rubber powder refers to a powdery rubber material obtained by crushing and processing waste rubber products. In the present invention, the rubber powder is preferably a mixed powder of rubber and/or waste tires.
In the invention, the weight part of the stone powder is preferably 70-90 parts, more preferably 75-85 parts, and most preferably 80 parts. In the present invention, the stone powder is preferably calcium silicate stone powder.
Test results show that the W200 waterproof asphalt raw material (waterproof asphalt) for the waterproof coiled material provided by the invention can enable the heat resistance of the waterproof coiled material to reach more than 88 ℃, the low-temperature flexibility limit to reach below-26 ℃, the peel strength between the coiled material and the coiled material to reach 1.8N/mm and above, and the peel strength between the coiled material and an aluminum plate to reach 2.5N/mm and above.
The preparation method of the waterproof roll provided by the embodiment of the invention has the process flow as shown in figure 1, and comprises the following steps:
mixing and heating waterproof asphalt, No. 70 asphalt, SBS and SBR to obtain an intermediate material;
mixing the intermediate material with petroleum resin, rubber powder and stone powder, heating and stirring to obtain a coating material;
and coating the coating material on the surface of a matrix to obtain the waterproof roll.
In the invention, the mixing and heating temperature is preferably 130-160 ℃, more preferably 140-150 ℃, and most preferably 145 ℃; the mixing and heating method preferably comprises shearing and stirring, wherein the rotating speed of the shearing and stirring is preferably 3000-5000 rpm, more preferably 3500-4500 rpm, and most preferably 4000 rpm; the time for shearing and stirring is preferably 0.5 to 1 hour, more preferably 0.6 to 0.9 hour, and most preferably 0.7 to 0.8 hour.
In the invention, the heating and stirring temperature is preferably 155-190 ℃, more preferably 160-180 ℃, and most preferably 170 ℃; the heating and stirring time is preferably 1 to 2 hours, more preferably 1.2 to 1.8 hours, more preferably 1.4 to 1.6 hours, and most preferably 1.5 hours. The invention has no special limit on the heating and stirring speed, and the materials are fully dissolved and uniformly mixed.
In the invention, the coating material is preferably poured into a mold and is slowly coated on the surface of the base material at a constant speed through a discharge hole of the mold.
In the embodiment of the invention, the schematic structural diagram of the mold is shown in fig. 2, and the height of the discharge hole of the mold is preferably 1.5-2.5 mm, more preferably 1.8-2.2 mm, and most preferably 2 mm; the width of the die is preferably 250-350 mm, more preferably 280-320 mm, and most preferably 300 mm.
In the invention, the thickness of the coating is preferably 2-4 mm, and more preferably 3 mm.
The invention provides W200 waterproof asphalt (waterproof asphalt) for a waterproof coiled material and a preparation method thereof, which adopt a crude oil blending method and a base oil compounding method to be coordinated and matched with each other, overcome the defects of waterproof asphalt raw materials and base oil in the traditional sense, solve the technical difficulties of unstable performance indexes and conflicting high and low temperature performances of the W200 waterproof asphalt, and effectively improve the technical problems of low temperature performance, stripping performance, heat resistance and the like of a self-adhesive waterproof coiled material based on the W200 waterproof asphalt. Meanwhile, the production stability of the W200 waterproof asphalt is improved, the raw material requirements of the asphalt-based waterproof coiled material market can be better met, and the production efficiency is improved. In addition, the invention also provides a mode and a method for further research and development of the waterproof asphalt, and also provides a certain reference value for high added value utilization of low added value products of refineries, such as coker gas oil, residue oil and the like.
The No. 70 asphalt used in the following examples is residual oil obtained by distilling the blended crude oil, the reduced third-line wax oil is side-line distillate oil of 325-440 ℃ distillation range of the blended crude oil in the vacuum distillation process, the reduced third-line wax oil is side-line distillate oil of 395-440 ℃ distillation range of the blended crude oil, the crude oil is naphthenic base crude oil, and the coked wax oil is vacuum residual oil prepared by prolonged coking thermal cracking; the vacuum residue is the bottom oil of crude oil after vacuum distillation.
Example 1
The waterproof asphalt formula comprises: 53 parts of No. 70 asphalt and 47 parts of base oil;
the base oil formula is as follows: reducing 17 parts of second-line wax oil and 7 parts of third-line wax oil;
the blended crude oil comprises the following components in percentage by weight: 100 parts of crude oil and 10 parts of coker gas oil.
The preparation method of the base oil comprises the following steps: and compounding and mixing 17 parts of second-line reduced wax oil and 7 parts of third-line reduced wax oil, and stirring for 0.5h at room temperature to obtain the base oil.
The preparation method of the waterproof asphalt comprises the following steps: heating No. 70 asphalt to 138 ℃, and compounding, mixing and heating the asphalt and base oil according to the weight ratio of 53: 47, wherein the heating temperature is 140 ℃, and the stirring time is 0.5h, so as to obtain the W200 waterproof asphalt.
The preparation method of the waterproof roll comprises the following steps: mixing and heating 150 parts by weight of waterproof asphalt, 120 parts by weight of No. 70 asphalt, 9 parts by weight of SBS and 17 parts by weight of SBR at the temperature of 130 ℃, opening a shearing machine, controlling the rotating speed to be 4000rpm, and shearing time to be 0.5h to obtain an intermediate material; because the shearing process of the shearing machine generates heat, attention is paid to control the temperature.
Then transferring the intermediate material to a common heating and stirring device, controlling the temperature to be 170 ℃, sequentially adding 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder), and stirring for 2.0 hours to obtain the coating material.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt body with uniform speed and a coating thickness of 3mm, wherein the height of a discharge port of the mould is 2mm, the width of the discharge port of the mould is 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structure of the mould is schematically shown in figure 2.
Example 2
The formula of the waterproof asphalt comprises: 56 parts of No. 70 asphalt and 44 parts of base oil.
The formula of the base oil is as follows: reducing 17 parts of second-line wax oil and 7 parts of third-line wax oil.
The blended crude oil comprises the following components in percentage by weight: 100 parts of crude oil and 5 parts of coker gas oil.
The preparation method of the base oil comprises the following steps: and compounding and mixing 17 parts of second-line wax reducing oil and 7 parts of third-line wax reducing oil, and stirring for 0.5 hour at room temperature to obtain the base oil.
The preparation method of the waterproof asphalt comprises the following steps: heating No. 70 asphalt to 138 ℃, and mixing with base oil according to the weight part ratio of 56: 44, wherein the heating temperature is 140 ℃, and the stirring time is 0.5h, so as to obtain the W200 waterproof asphalt.
The preparation method of the waterproof roll comprises the following steps: mixing and heating 150 parts by weight of waterproof asphalt, 120 parts by weight of No. 70 asphalt, 9 parts by weight of SBS and 17 parts by weight of SBR at the temperature of 130 ℃, opening a shearing machine, controlling the rotating speed to be 4000rpm, and shearing time to be 0.5h to obtain an intermediate material; because the shearing process of the shearing machine generates heat, attention is paid to control the temperature.
Then transferring the intermediate material to a common heating and stirring device, controlling the temperature to be 170 ℃, sequentially adding 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder), and stirring for 2.0 hours to obtain the coating material.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt body with uniform speed and a coating thickness of 3mm, wherein the height of a discharge port of the mould is 2mm, the width of the discharge port of the mould is 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structure of the mould is schematically shown in figure 2.
Example 3
The formula of the waterproof asphalt comprises: 59 parts of No. 70 asphalt and 41 parts of base oil;
the formula of the base oil is as follows: reducing 17 parts of second-line wax oil and 7 parts of third-line wax oil;
the blended crude oil comprises the following components in percentage by weight: 100 parts of crude oil and 5 parts of coker gas oil.
The preparation method of the base oil comprises the following steps: and compounding and mixing 17 parts of second-line reduced wax oil and 7 parts of third-line reduced wax oil, and stirring for 0.5h at room temperature to obtain the base oil.
The preparation method of the waterproof asphalt comprises the following steps: heating No. 70 asphalt to 138 ℃, and mixing with base oil according to the weight ratio of 59: 41, compounding and mixing at the heating temperature of 140 ℃ for 0.5h to obtain the W200 waterproof asphalt.
The preparation method of the waterproof roll comprises the following steps: mixing and heating 150 parts by weight of waterproof asphalt, 120 parts by weight of No. 70 asphalt, 9 parts by weight of SBS and 17 parts by weight of SBR at the temperature of 130 ℃, opening a shearing machine, controlling the rotating speed to be 4000rpm, and shearing time to be 0.5h to obtain an intermediate material; because heat is generated during the shearing process of the shear, attention is paid to controlling the temperature.
Then transferring the intermediate material to a common heating and stirring device, controlling the temperature to be 170 ℃, sequentially adding 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder), and stirring for 2.0 hours to obtain the coating material.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt body with uniform speed and a coating thickness of 3mm, wherein the height of a discharge port of the mould is 2mm, the width of the discharge port of the mould is 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structure of the mould is schematically shown in figure 2.
Comparative example 1
Mixing and heating 200 parts of No. 70 asphalt, 47 parts of minus paraffin oil, 9 parts of SBS and 17 parts of SBR at 130 ℃, opening a shearing machine, controlling the rotating speed at 4000rpm, and shearing for 0.5h to obtain an intermediate material; because heat is generated during the shearing process of the shear, attention is paid to controlling the temperature.
Then transferring the intermediate material to a common heating and stirring device, controlling the temperature to be 170 ℃, sequentially adding 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder), and stirring for 2.0 hours to obtain the coating material.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt matrix at a constant speed with the coating thickness of 3mm and the height of a discharge port of the mould being 2mm and the width being 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structure of the mould is schematically shown in figure 2.
Performance detection
The performance of the waterproof asphalt prepared in the embodiment of the invention is detected, and the detection result is shown in table 1.
Table 1 performance test results of waterproof asphalt prepared in the examples of the present invention
The performance of the waterproof rolls prepared in the examples of the present invention and the comparative examples was measured, and the measurement results are shown in table 2.
Table 2 results of performance test of the waterproof rolls prepared in the examples of the present invention and comparative examples
As can be seen from Table 1, the W200 waterproof asphalt prepared by the method of the invention can meet the technical index requirements of asphalt raw materials for waterproof coiled materials; as can be seen from table 2, compared with comparative example 1, the heat resistance, low temperature flexibility, and peel strength between the coil and between the coil and the aluminum plate of the waterproof rolls prepared in examples 1 to 3 of the present invention are all significantly improved.
Example 4
The formula of the waterproof asphalt comprises: 56 parts of No. 70 asphalt and 44 parts of base oil.
The base oil formula is as follows: 17 parts of reduced third-line wax oil, 7 parts of reduced third-line wax oil and 5 parts of coking wax oil.
The blended crude oil comprises the following components in percentage by weight: 100 parts of crude oil and 10 parts of coker gas oil.
The preparation method of the base oil comprises the following steps: and compounding and mixing 17 parts of second-line wax reducing oil, 7 parts of third-line wax reducing oil and 5 parts of coking wax oil, and stirring for 0.5 hour at room temperature to obtain the base oil.
The preparation method of the waterproof asphalt comprises the following steps: heating No. 70 asphalt to 138 ℃, and mixing with base oil according to the weight part ratio of 56: 44, wherein the heating temperature is 140 ℃, and the stirring time is 0.5h, so as to obtain the W200 waterproof asphalt.
The preparation method of the waterproof roll comprises the following steps: mixing and heating 150 parts by weight of waterproof asphalt, 120 parts by weight of No. 70 asphalt, 9 parts by weight of SBS and 17 parts by weight of SBR at the temperature of 130 ℃, opening a shearing machine, controlling the rotating speed at 4000rpm and the shearing time at 0.5h to obtain an intermediate material; because the shearing process of the shearing machine generates heat, attention is paid to control the temperature.
Then transferring the intermediate material to a common heating and stirring device, controlling the temperature to be 170 ℃, sequentially adding 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder), and stirring for 2.0 hours to obtain the coating material.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt body with uniform speed and a coating thickness of 3mm, wherein the height of a discharge port of the mould is 2mm, the width of the discharge port of the mould is 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structure of the mould is schematically shown in figure 2.
Example 5
The formula of the waterproof asphalt comprises: 56 parts of No. 70 asphalt and 44 parts of base oil.
The formula of the base oil is as follows: 17 parts of reduced third-line wax oil, 7 parts of reduced third-line wax oil and 3 parts of coking wax oil.
The formula of the blended crude oil is as follows: 100 parts of crude oil and 10 parts of coker gas oil.
The preparation method of the base oil comprises the following steps: and compounding and mixing 17 parts of second-line reduced wax oil, 7 parts of third-line reduced wax oil and 3 parts of coking wax oil, and stirring for 0.5h at room temperature to obtain the base oil.
The preparation method of the waterproof asphalt comprises the following steps: heating No. 70 asphalt to 138 ℃, and mixing with base oil according to the weight part ratio of 56: 44, carrying out compound mixing at the heating temperature of 140 ℃ for 0.5h to obtain the W200 waterproof asphalt.
The preparation of the waterproof roll comprises the following steps: mixing and heating 150 parts by weight of waterproof asphalt, 120 parts by weight of No. 70 asphalt, 9 parts by weight of SBS and 17 parts by weight of SBR at the temperature of 130 ℃, opening a shearing machine, controlling the rotating speed to be 4000rpm, and shearing time to be 0.5h to obtain an intermediate material; because the shearing process of the shearing machine generates heat, attention is paid to control the temperature.
Then the intermediate material is transferred to a common heating and stirring device, the temperature is controlled at 170 ℃, 8.6 parts by weight of C5 petroleum resin, 70 parts by weight of rubber powder (powdery rubber material obtained by crushing waste rubber products) and 70 parts by weight of stone powder (calcium silicate powder) are sequentially added, and the stirring time is 2.0h, so that the coating material is obtained.
Pouring the coating material into a mould, slowly coating the surface of the polyester felt body with uniform speed and a coating thickness of 3mm, wherein the height of a discharge port of the mould is 2mm, the width of the discharge port of the mould is 300mm, and covering a silicone oil isolating membrane after cooling to room temperature to obtain the self-adhesive asphalt-based waterproof coiled material; the structural schematic diagram of the mold is shown in fig. 2.
Performance detection
The waterproof asphalt prepared in the example was subjected to performance test, and the test results are shown in table 3.
Table 3 performance test results of waterproof asphalt prepared in the examples of the present invention
The performance of the waterproof roll prepared in the embodiment of the invention is detected, and the detection result is shown in table 4.
Table 4 performance test results of the waterproof roll prepared in the example of the present invention
As can be seen from Table 3, the addition of coker gatch to the base oil formulation improves the performance indexes such as softening point, flash point and the like of the W200 waterproof asphalt. As can be seen from Table 4, the formula improvement of the W200 waterproof asphalt obviously improves the heat resistance and low-temperature flexibility of the waterproof coiled material, and the peeling strength of the coiled material and the aluminum plate.
The waterproof asphalt provided by the invention adopts a method of mutually coordinating a crude oil blending method and a base oil blending method, improves the performance index of a W200 waterproof asphalt product in the whole process from crude oil refining to waterproof asphalt blending, and ensures high stability of performance. In the process of crude oil refining production, the coking wax oil is adopted to blend the crude oil, so that the high-temperature performance of the produced asphalt can be effectively improved, and the technical indexes such as softening point and the like are improved. In the base oil compounding process, the second-line wax oil and the third-line wax oil are compounded, and the coking wax oil is added according to a proper proportion, so that the low-temperature performance of the W200 waterproof asphalt can be improved. In addition, the second-line wax reducing oil and the third-line wax reducing oil obtained by the refining of the blended crude oil have high affinity with asphalt and coking wax oil, and are not easy to segregate. The invention can effectively solve the technical difficulties that the performance index of the W200 waterproof asphalt is unstable and the high and low temperature performance conflicts, and the technical problems of the low temperature performance, the stripping performance, the heat resistance and the like of the self-adhesive asphalt-based waterproof coiled material. In addition, the invention greatly improves the production stability of the W200 waterproof asphalt, can better meet the raw material requirement of the asphalt-based waterproof coiled material market, ensures the stable supply of the raw materials and improves the production efficiency.
The above embodiments are only described to help understanding the method of the present invention and its core idea. The general principles defined in this disclosure may be implemented in other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
While only the preferred embodiments of the present invention have been described, it should be understood that various modifications and adaptations thereof may occur to one skilled in the art without departing from the spirit of the present invention and should be considered as within the scope of the present invention.
Claims (8)
1. The waterproof asphalt comprises the following components in parts by weight:
40-70 parts of No. 70 asphalt;
40-70 parts of base oil;
the No. 70 asphalt is residual oil obtained by distilling the blended crude oil;
the base oil comprises: reducing wax oil in two lines; reducing wax oil of three lines; coker gas oil;
the second-line reduced wax oil and the third-line reduced wax oil are side line fractions obtained by the mixed crude oil in vacuum distillation;
the blended crude oil comprises:
crude oil and coker gas oil;
the weight part of the second wax reducing oil is 10-30 parts; the weight part of the three-line reducing wax oil is 2-10 parts; the weight part of the coking wax oil is 0-10 parts;
the weight part of the crude oil is 85-110 parts; the weight portion of the coking waxy oil is 0-20.
2. The waterproof asphalt according to claim 1, wherein the reduced paraffin oil is a distillate oil with a distillation range of 325-440 ℃;
the reduced paraffin oil is distillate oil with the distillation range of 395-440 ℃.
3. The waterproof asphalt according to claim 1, wherein the mass percent of saturates in the second wax reducing oil is 60-80%; the pour point of the second-line wax reducing oil is less than or equal to 15 ℃; the kinematic viscosity of the second wax reducing oil at 40 ℃ is 20-60 mPa & s.
4. The waterproof asphalt according to claim 1, wherein the weight percentage of saturates in the third-line wax reducing oil is 50-70%; the pour point of the three-line reducing wax oil is less than or equal to 27 ℃; the kinematic viscosity of the three-line wax reducing oil at 40 ℃ is 60-130 mPa & s.
5. The water resistant asphalt of claim 1, the crude oil being selected from naphthenic base crude oil and/or intermediate base crude oil;
the coking wax oil is prepared by carrying out prolonged coking thermal cracking on vacuum residue.
6. A roll of waterproofing material comprising:
a substrate;
a coating layer disposed on a surface of the substrate;
the coating layer comprises the following components in parts by weight:
7. the waterproofing membrane according to claim 6, wherein said petroleum resin is C5 petroleum resin.
8. The waterproofing membrane according to claim 6, wherein said stone powder is calcium silicate powder.
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