CN110628230A - An environment-friendly high-viscosity and high-elasticity surface treatment material and its preparation method - Google Patents

Abstract

The invention provides an environment-friendly high-viscosity and high-elasticity surface treatment material and a preparation method thereof. In terms of parts by mass, its components include: 70-90 parts of petroleum asphalt, 5-15 parts of extracted oil, and 5-18 parts of desulfurized rubber powder , 1-5 parts of SBS, 0.5-3 parts of polymer resin, 0.1-2 parts of stabilizer, the stabilizer is a mixture of sulfur and zinc oxide. The environment-friendly high-viscosity and high-elastic surface treatment material of the present invention, styrene butadiene block copolymer (SBS) and desulfurized rubber powder absorb light components in asphalt, develop and swell after high temperature, and the added polymer resin and desulfurized rubber powder Sulfur, SBS and asphalt have a cross-linking reaction with sulfur and zinc oxide. At high temperature, sulfur captures a hydrogen at the α-position of the above organic matter and undergoes a chemical cross-linking reaction, making asphalt, SBS, desulfurized rubber powder, and polymer The resins form cross-linked polymers. Thus forming a high-viscosity, high-elasticity composite material.

Description

An environment-friendly high-viscosity and high-elasticity surface treatment material and its preparation method

technical field

The invention belongs to the technical field of asphalt, and relates to an environment-friendly high-viscosity and high-elasticity surface treatment material and a preparation method thereof.

Background technique

Asphalt is an organic polymer compound with extremely complex components. In actual road construction, some performance indicators of asphalt are modified and improved. SBS and rubber powder are commonly used asphalt modifiers. SBS and asphalt can form a three-dimensional network structure to improve the high-temperature performance of asphalt; rubber powder particles dissolve and swell in volume under the action of light components in asphalt, thereby The performance of asphalt is improved, but this is only physical dispersion, and no chemical bonding is formed. Therefore, the various detection indexes of the modified asphalt are relatively low. And because the conventional rubber powder modified asphalt contains a large amount of waste rubber powder and other sulfur-containing compounds and low-molecular organic matter, a large amount of organic waste gas, sulfide and other harmful substances are produced during the production and construction process, causing great harm to the environment and production and construction personnel. Big health damage. These common rubber powder modified asphalt cannot meet the performance and environmental protection requirements of surface treatment materials.

Contents of the invention

Aiming at the problems existing in the prior art, the invention provides an environment-friendly high-viscosity and high-elasticity surface treatment material and a preparation method thereof.

The present invention is achieved through the following technical solutions:

An environment-friendly high-viscosity and high-elastic surface treatment material, its components include: 70-90 parts of petroleum asphalt, 5-15 parts of extracted oil, 5-18 parts of desulfurized rubber powder, 1-5 parts of SBS, in terms of parts by mass, 0.5-3 parts of polymer resin, 0.1-2 parts of stabilizer, the stabilizer is a mixture of sulfur and zinc oxide.

Preferably, in terms of parts by mass, 0.03-0.1 part of deodorant is also included.

Further, the deodorant is zirconium hydrogen phosphate.

Preferably, the polymer resin is phenolic resin or urea-formaldehyde resin.

Preferably, the desulfurized rubber powder is granular rubber obtained from recycled waste rubber after desulfurization treatment.

Preferably, the extracted oil is furfural extracted oil.

Preferably, the SBS is a styrene butadiene copolymer.

The preparation method of the environment-friendly high-viscosity and high-elasticity surface treatment material divides petroleum asphalt into two parts, including the following steps:

Step1, add a part of the petroleum pitch to the shearing machine, then add the extracted oil, and heat to 175-185 degrees Celsius to obtain the system 1;

Step2, add SBS particles and polymer resin to system 1 under heat preservation, the shear speed is 2500-3500r/min, and shear for 30-60min to obtain system 2;

Step3, add the remaining petroleum asphalt kept at 175-185 degrees Celsius to system 2, add desulfurized rubber powder at the same time, continue to cut for 30-60min, and obtain system 3;

Step4, add stabilizer or stabilizer and deodorant to system 3, rotate at 2500-3500r/min, cut for 10-30min to get the finished product.

Preferably, the petroleum asphalt added in Step1 is 68%-85% of the total components of petroleum asphalt.

Compared with the prior art, the present invention has the following beneficial technical effects:

The environment-friendly high-viscosity and high-elasticity surface treatment material of the present invention, styrene butadiene block copolymer (SBS) and desulfurized rubber powder absorb asphalt and extract light components of oil species, develop and swell at high temperature, add polymer resin, Several components of desulfurized rubber powder, SBS and asphalt undergo a cross-linking reaction with sulfur and zinc oxide. At high temperature, sulfur captures a hydrogen at the α-position of the above organic matter and undergoes a chemical cross-linking reaction, making asphalt, SBS and desulfurized rubber powder , The polymer resin forms a cross-linked polymer. Thus forming a high-viscosity, high-elasticity composite material. This composite material combines the viscoelastic advantages of SBS and desulfurized rubber powder with the high temperature performance of polymer resins. In addition, the present invention uses desulfurized rubber powder, because desulfurized rubber powder removes sulfur compounds contained in conventional rubber powder, so harmful substances such as sulfides in the obtained disposal materials are greatly reduced, and harmful substances such as sulfides in the production and construction process are reduced. The release improves environmental protection and safety.

Furthermore, the present invention adds a deodorant, which can absorb small molecular organic compounds, reduce the volatilization of small molecular organic compounds under high temperature asphalt, and further improve environmental protection and safety.

Further, the deodorizer of the present invention adopts zirconium hydrogen phosphate, which has large pores in the zirconium hydrogen phosphate molecule, which can not only absorb small molecular organic compounds, but also absorb toxic and harmful gases such as sulfur dioxide and hydrogen sulfide produced in asphalt, thereby preventing to the deodorizing effect.

Detailed ways

The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

An environment-friendly high-viscosity and high-elastic surface treatment material, its main components include: 70-90 parts of petroleum asphalt, 5-15 parts of extracted oil, 5-18 parts of desulfurized rubber powder, and 1-5 parts of SBS , 0.5-3 parts of polymer resin, 0.1-2 parts of stabilizer.

The polymer resin is phenolic resin, urea-formaldehyde resin, etc., but not limited to the above resins, because the resin can improve the high-temperature performance of asphalt due to its excellent high-temperature performance;

The stabilizer is a mixture of sulfur and zinc oxide in a mixing ratio of 2:1;

The desulfurized rubber powder is granular rubber obtained by reclaiming waste rubber after desulfurization treatment;

The deodorizer is zirconium hydrogen phosphate, etc., which have large pores in the molecule, which can absorb small molecular organic compounds and reduce the volatilization of small molecular organic compounds under high temperature asphalt;

The extracted oil is furfural extracted oil;

The SBS is a styrene butadiene copolymer with a block ratio of 3/7.

The preparation method of the surface treatment material comprises the following steps;

Step1, adding 68%-85% of the petroleum pitch and 100% of the extracted oil into the high-speed shearing machine, and heating to 175-185 degrees Celsius to obtain system 1;

Step2, add SBS particles and polymer resin to system 1 according to the proportion under heat preservation, the shear speed is 2500-3500r/min, and shear for 30-60min to obtain system 2;

Step3, add the remaining petroleum asphalt kept at 175-185 degrees Celsius to system 2, and at the same time add the component amount of desulfurized rubber powder, and continue to cut for 30-60min to obtain system 3.

Step4, add component amount of deodorizer and stabilizer to system 3, rotate at 2500-3500r/min, cut for 10-30min to get the finished product.

Example 1

A surface treatment material, the main components of which are: 70 parts of petroleum asphalt, 15 parts of extracted oil, 18 parts of desulfurized rubber powder, 1 part of SBS, 3 parts of phenolic resin, 0.1 part of deodorant, 2 parts of stabilizer Among them, the desulfurized rubber powder is recovered desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is phenolic resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Yueyang Petrochemical 791H; the deodorant is zirconium hydrogen phosphate;

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 70% component amount, the described extraction oil of 100% component amount in high-speed shearing machine, be heated to 175 degrees centigrade;

Step2, under heat preservation, add SBS 791H and polymer resin according to the proportion, the shear speed is 2500r/min, and shear for 30min;

Step3, add the remaining 30% component petroleum asphalt kept at 175 degrees Celsius to the product of Step2, and add the component amount of desulfurized rubber powder at the same time, and cut for 60 minutes;

Step4, to Step3, add deodorizer and stabilizer in the amount of components, rotate at 2500r/min, cut for 30min to get the finished product.

Example 2

A surface treatment material, its main components are: 80 parts of petroleum asphalt, 10 parts of extracted oil, 12 parts of desulfurized rubber powder, 3 parts of SBS, 1.8 parts of phenolic resin, 0.06 parts of deodorant, 1 part of stabilizer Among them, the desulfurized rubber powder is recovered desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is phenolic resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H; and the deodorant is zirconium hydrogen phosphate.

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 70% component quantity, the described extraction oil of 100% component quantity in high-speed shearing machine, be heated to 185 degrees centigrade;

Step2, under heat preservation, add SBS T6302H and polymer resin according to the proportion, the shear speed is 3500r/min, and shear for 45min;

Step3, add the remaining 30% component petroleum asphalt kept at 185 degrees Celsius to the product of Step2, and add the desulfurized rubber powder of the component amount at the same time, and cut for 45 minutes;

Step4, to Step3, add deodorant and stabilizer in the amount of components, rotate at 3500r/min, cut for 20min to get the finished product.

Example 3

A high-viscosity and high-elastic surface treatment material, the main components of which are: 90 parts of petroleum asphalt, 5 parts of extracted oil, 5 parts of desulfurized rubber powder, 5 parts of SBS, 0.5 parts of urea-formaldehyde resin, and 0.03 parts of deodorant , 0.1 part of stabilizer; wherein, the desulfurized rubber powder is recovered desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is phenolic resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H; and the deodorant is zirconium hydrogen phosphate.

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 70% component quantity, the described extraction oil of 100% component quantity in high-speed shearing machine, be heated to 180 degrees centigrade;

Step2, add SBS T6302H and polymer resin according to the proportion under heat preservation, the shearing speed is 3000r/min, and shearing for 60min;

Step3, add the remaining 30% component petroleum asphalt kept at 180 degrees Celsius to the product of Step2, and add the component amount of desulfurized rubber powder at the same time, and cut for 60 minutes;

Step4, to Step3, add deodorant and stabilizer in the amount of components, rotate at 3000r/min, cut for 10min to get the finished product.

Example 4

A high-viscosity and high-elastic surface treatment material, the main components of which are: 90 parts of petroleum asphalt, 5 parts of extracted oil, 5 parts of desulfurized rubber powder, 5 parts of SBS, 0.5 parts of urea-formaldehyde resin, and 0.1 part of stabilizer in parts by weight; Wherein, the desulfurized rubber powder is recycled desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is phenolic resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H;

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 70% component quantity, the described extraction oil of 100% component quantity in high-speed shearing machine, be heated to 180 degrees centigrade;

Step2, add SBS T6302H and polymer resin according to the proportion under heat preservation, the shearing speed is 3000r/min, and shearing for 60min;

Step3, add the remaining 30% component petroleum asphalt kept at 180 degrees Celsius to the product of Step2, and add the component amount of desulfurized rubber powder at the same time, and cut for 60 minutes;

Step4, add component amount stabilizer to Step3, rotate at 3000r/min, cut for 15min to get the finished product.

Example 5

A high-viscosity and high-elastic surface treatment material, the main components of which are, by weight, 86 parts of petroleum asphalt, 6 parts of extracted oil, 8 parts of desulfurized rubber powder, 2 parts of SBS, 1 part of urea-formaldehyde resin, and 0.4 parts of stabilizer; Wherein, the desulfurized rubber powder is recycled desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is urea-formaldehyde resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H;

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 68% component amount, the described extraction oil of 100% component amount in high-speed shearing machine, be heated to 182 degrees centigrade;

Step2, add SBS T6302H and polymer resin according to the proportion under heat preservation, the shear speed is 2800r/min, and shear for 35min;

Step3, add the remaining 32% component petroleum asphalt kept at 182 degrees Celsius to the product of Step2, and add the desulfurized rubber powder of the component amount at the same time, and cut for 35 minutes;

Step4, add component amount stabilizer to Step3, rotate at 2800r/min, cut for 12min to get the finished product.

Example 6

A high-viscosity and high-elastic surface treatment material, the main components of which are: 81 parts of petroleum asphalt, 8 parts of extracted oil, 10 parts of desulfurized rubber powder, 3.5 parts of SBS, 1.5 parts of urea-formaldehyde resin, 0.05 parts of zirconium hydrogen phosphate, 0.8 parts of stabilizer; wherein, the desulfurized rubber powder is recovered desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is phenolic resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H;

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 80% component quantity, the described extraction oil of 100% component quantity in high-speed shearing machine, be heated to 178 degrees centigrade;

Step2, add SBS T6302H and polymer resin according to the proportion under heat preservation, the shearing speed is 3200r/min, and shearing for 60min;

Step3, add the remaining 20% component petroleum asphalt kept at 178 degrees Celsius to the product of Step2, and add the desulfurized rubber powder of the component amount at the same time, and cut for 60 minutes;

Step4, add component amount stabilizer to Step3, rotate at 3200r/min, cut for 15min to get the finished product.

Example 7

A high-viscosity and high-elastic surface treatment material, the main components of which are: 75 parts of petroleum asphalt, 12 parts of extracted oil, 15 parts of desulfurized rubber powder, 4 parts of SBS, 2.5 parts of urea-formaldehyde resin, and 0.15 parts of stabilizer in parts by weight; Wherein, the desulfurized rubber powder is recycled desulfurized rubber powder particles, and the extracted oil is furfural extracted oil. The polymer resin is urea-formaldehyde resin; the stabilizer is a mixture of sulfur and zinc oxide; the SBS is Dushanzi Petrochemical T6302H;

The method for preparing the surface treatment material of this embodiment includes the following steps:

Step1, add the described petroleum asphalt of 85% component quantity, the described extraction oil of 100% component quantity in high-speed shearing machine, be heated to 180 degrees centigrade;

Step2, add SBS T6302H and polymer resin according to the proportion under heat preservation, the shear speed is 3000r/min, and shear for 40min;

Step3, add the remaining 15% component petroleum asphalt kept at 180 degrees Celsius to the product of Step2, and add the component amount of desulfurized rubber powder at the same time, and cut for 40 minutes;

Step4, add component amount stabilizer to Step3, rotate at 3000r/min, cut for 15min to get the finished product.

Comparative example 1

A surface treatment material, its main components are: 90 parts of petroleum asphalt, 5 parts of extracted oil, 5 parts of desulfurized rubber powder, 5 parts of SBS, and 0.1 part of stabilizer; wherein, the desulfurized rubber powder is recycled desulfurized rubber Powder particles, the extracted oil is furfural extracted oil.

Comparative example 2

A surface treatment material, the main components of which are, by weight, 70 parts of petroleum asphalt, 15 parts of extracted oil, 18 parts of desulfurized rubber powder, 1 part of SBS, and 2 parts of stabilizer. Wherein, the desulfurized rubber powder is recycled desulfurized rubber powder particles, and the extracted oil is furfural extracted oil.

In the above implementation examples, the performance indexes of the prepared surface treatment materials are shown in Table 1.

Table 1 Performance indicators of surface treatment materials

From the above test results, it can be seen that the high-viscosity and high-elasticity surface treatment material has high-temperature performance (softening point), low-temperature performance (ductility), resilience performance (elastic recovery), bonding performance (60-degree dynamic viscosity) and other properties. Overall better than the comparative example (without adding polymer resin and deodorant).

The above examples and comparative examples were tested for harmful volatile substances at high temperatures, and compared with conventional rubber powder modified asphalt, the data are shown in Table 2:

Table 2 Test results of harmful volatile substances of surface treatment materials at high temperature

As can be seen from Table 2, the embodiment of the present invention is better than the comparative example in terms of environmental performance.

The invention adopts desulfurized rubber powder, SBS, polymer resin, extracted oil, deodorizer and other additives to modify matrix asphalt, thereby preparing a high-performance surface treatment material. Desulfurized rubber powder and SBS modify asphalt at the same time, desulfurized rubber powder provides sufficient elasticity for asphalt, SBS provides three-dimensional space structure for asphalt, polymer resin provides better strength and high temperature performance for asphalt, and deodorant can effectively Reduce the emission of organic waste gas, sulfur compounds and nitrogen oxides under asphalt high temperature. The performance indicators of the surface treatment material prepared by this method are excellent: softening point≧75°C; elongation at 5°C≧30cm, good low-temperature crack resistance and flexibility; elastic recovery≧85%, high elastic performance provides more Good shear resistance and deformation resistance, mass loss (organic waste gas) ≤ 0.3%, hydrogen sulfide and sulfur dioxide and other irritating gas emissions are significantly reduced, making asphalt more environmentally friendly during mixing and construction, effectively reducing the impact on the environment and personnel health hazard.

The above-mentioned embodiments only express the concentrated implementation of the present invention, and the description thereof is more specific and detailed, but it should not be construed as limiting the patent scope of the present invention. It should be noted that, for those of ordinary skill in the art, on the premise of not departing from the concept of the present invention, some modifications and improvements can also be made, and these all belong to the protection scope of the invention. Therefore, the protection scope of the present invention should be defined as The appended claims shall prevail.

Claims (9)

1. An environment-friendly high-viscosity and high-elasticity surface treatment material is characterized in that, in parts by mass, its components include: 70-90 parts of petroleum pitch, 5-15 parts of oil extraction, 5-18 parts of desulfurized rubber powder, 1-5 parts of SBS, 0.5-3 parts of polymer resin, 0.1-2 parts of stabilizer, the stabilizer is a mixture of sulfur and zinc oxide. 2. The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 1, further comprising 0.03-0.1 part of a deodorant in parts by mass. 3. The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 2, characterized in that the deodorant is zirconium hydrogen phosphate. 4. The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 1, wherein the polymer resin is phenolic resin or urea-formaldehyde resin. 5 . The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 1, characterized in that, the desulfurized rubber powder is granular rubber after desulfurization treatment of recycled waste rubber. 6. The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 1, characterized in that, the extracted oil is furfural extracted oil. 7. The environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 1, wherein the SBS is a styrene butadiene copolymer. 8. The preparation method of the environment-friendly high-viscosity and high-elasticity surface treatment material described in any one of claims 1-7, is characterized in that, petroleum asphalt is divided into two parts, comprises the following steps: Step1, add a part of the petroleum pitch to the shearing machine, then add the extracted oil, and heat to 175-185 degrees Celsius to obtain the system 1; Step2, add SBS particles and polymer resin to system 1 under heat preservation, the shear speed is 2500-3500r/min, and shear for 30-60min to obtain system 2; Step3, add the remaining petroleum asphalt kept at 175-185 degrees Celsius to system 2, add desulfurized rubber powder at the same time, continue to cut for 30-60min, and obtain system 3; Step4, add stabilizer or stabilizer and deodorant to system 3, rotate at 2500-3500r/min, cut for 10-30min to get the finished product. 9. The preparation method of the environment-friendly high-viscosity and high-elasticity surface treatment material according to claim 8, characterized in that the petroleum asphalt added in Step1 is 68%-85% of the total components of petroleum asphalt.