WO2021013011A1 - 一种废旧机油在橡胶改性方面的应用 - Google Patents
一种废旧机油在橡胶改性方面的应用 Download PDFInfo
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- WO2021013011A1 WO2021013011A1 PCT/CN2020/102107 CN2020102107W WO2021013011A1 WO 2021013011 A1 WO2021013011 A1 WO 2021013011A1 CN 2020102107 W CN2020102107 W CN 2020102107W WO 2021013011 A1 WO2021013011 A1 WO 2021013011A1
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- WIPO (PCT)
- Prior art keywords
- rubber powder
- modified
- asphalt
- engine oil
- waste engine
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/005—Processes for mixing polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2419/00—Characterised by the use of rubbers not provided for in groups C08J2407/00 - C08J2417/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- 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
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
Definitions
- the invention belongs to the technical field of road engineering materials, and specifically relates to the application of waste engine oil in rubber powder modification.
- waste rubber tires are also called “black pollution”, and its recycling and disposal have once become a worldwide problem.
- the present invention adopts the following technical solutions:
- the invention proposes an application of waste engine oil in rubber powder modification.
- the present invention proposes an application of waste engine oil in the aspect of modified asphalt with high content of modified rubber powder.
- the present invention also provides a modified asphalt with a high content of modified rubber powder.
- the raw materials include base asphalt, rubber powder, waste engine oil, viscosity reducer and stabilizer.
- the rubber powder is 40 mesh scrap tire rubber powder
- the viscosity reducer is polyethylene wax
- the stabilizer is polyethylene
- the present invention also provides a method for preparing modified asphalt with a high content of modified rubber powder.
- the preparation method uses the modified rubber powder as a modified raw material and includes the following steps:
- Step 2) Premix the base asphalt, modified rubber powder and stabilizer according to the mass ratio
- Step 3) Perform high temperature, high speed shear and viscosity reduction on the premix.
- the step 1) is specifically: step 1.1) taking the rubber powder and placing it in a container, and adding a formula amount of waste engine oil to the container;
- Step 1.2) Stir the waste engine oil and rubber powder and pre-swell: mix the rubber powder and waste engine oil with a good ratio and place them in an environment of 50-70°C for 0.8-1.2h to make the waste engine oil and rubber powder sufficient infiltration;
- the step 2) is specifically:
- Step 2.3) After all the modified rubber powder is added, continue to control the temperature at 175 ⁇ 180°C and keep stirring, and then add the stabilizer of the formula to the mixture;
- Step 2.4 After all stabilizers are added, the temperature of the mixture is controlled at 175 ⁇ 180°C and the stirring is accelerated. The duration of the accelerated stirring is 0.7-1.3h;
- the step 3) is specifically:
- step 2 Heat the mixture obtained in step 2) to 230-240°C, stir at constant temperature for 1.3-1.7h, then add viscosity reducer and continue stirring for 2.3-2.7h to obtain modified asphalt with high content of modified rubber powder.
- the rubber powder is 40 mesh scrap tire rubber powder
- the viscosity reducing agent is polyethylene wax
- the stabilizer is polyethylene
- the present invention uses waste engine oil as a pre-swelling agent for the first time, and adopts microwave heating to prepare modified rubber powder, which accelerates cracking, improves the cracking rate of rubber powder, and has strong compatibility.
- the present invention further increases the compatibility of the rubber powder and the asphalt and the mixing amount of the rubber powder through the modification of the rubber powder, the high-temperature high-speed shearing means and the addition of a viscosity reducer (polyethylene wax).
- the present invention increases the mixing amount of rubber powder by 60% of the asphalt quality while ensuring the basic performance of the asphalt, reduces the amount of asphalt in road engineering, saves engineering costs and effectively solves the problem of waste tire disposal.
- the present invention proposes for the first time and adopts a three-stage preparation process (pre-swelling-stirring-shearing) of modified asphalt with a high content of modified rubber powder, which reduces the energy consumption in the production of modified asphalt, and at the same time It can further improve the compatibility of rubber powder and asphalt.
- the raw materials, waste engine oil and waste tire rubber powder are waste resources, and the recycling of waste resources promotes the sustainable development of transportation.
- Example 12 the base asphalt in the following examples and comparative examples are all SK-90 base asphalt;
- the rubber powder in the following examples and comparative examples are all 40 mesh waste tire rubber powder
- the viscosity reducing agents in the following examples and comparative examples are all polyethylene wax
- the stabilizers in the following examples and comparative examples are all polyethylene.
- the modified rubber powder can be prepared by the following methods:
- Table 1 shows the performance test data of rubber powder modified with different ratios of waste engine oil
- waste engine oil can provide acceleration conditions for the pyrolysis of rubber powder. After adding waste engine oil, heat preservation and development can pre-swell the rubber powder and increase the pyrolysis rate of rubber powder. Microwave heating can accelerate the pyrolysis of rubber powder and improve rubber. Compatibility of powder.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 45 parts of rubber powder, 10 parts of waste engine oil, and 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the above-mentioned mass fraction of raw materials, and the method includes the following steps:
- Step 3 High temperature, high speed shear and viscosity reduction of the premix:
- Step 2 After the end, remove the shearing machine, and continue to increase the temperature, immerse the shearing machine head under 1.5cm of asphalt and at a certain distance from the bottom of the container, and turn on the shearing machine to 3000r when the temperature reaches 230°C /min, the temperature is controlled between 230 ⁇ 240°C, after shearing for 1.5 hours, viscosity reducing agent is added and then shearing for 1.5 hours to prepare high content modified rubber powder modified asphalt.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 45 parts of rubber powder, 10 parts of waste engine oil, and 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment uses the above-mentioned mass fraction of raw materials, and the method includes the following steps:
- Step 2) and step 3) are the same as in Example 1.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 45 parts of rubber powder, 10 parts of waste engine oil, and 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the above-mentioned mass fraction of raw materials, and the method includes the following steps:
- Step 2) and step 3) are the same as in Example 1.
- This example provides a modified asphalt with a high content of modified rubber powder, in parts by weight, made from the following raw materials: 100 parts of base asphalt, 45 parts of rubber powder, 25 parts of waste engine oil, 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the above-mentioned mass fraction of raw materials, and the method includes the following steps:
- Step 2) and step 3) are the same as in Example 1.
- This example provides a modified asphalt with high content of modified rubber powder, in parts by weight, made from the following raw materials: 100 parts of base asphalt, 45 parts of rubber powder, 15 parts of waste engine oil, and 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the above-mentioned mass fraction of raw materials, and the method includes the following steps:
- Step 2) and step 3) are the same as in Example 1.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 50 parts of rubber powder, 15 parts of waste engine oil, and 3 parts of viscosity reducer And 0.5 parts of stabilizer.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the third embodiment.
- This example presents a modified asphalt with a high content of modified rubber powder, in parts by weight, made from the following raw materials: 100 parts of base asphalt, 55 parts of rubber powder, 15 parts of waste engine oil, and 3 parts of viscosity reducer And 1 part of stabilizer.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the second embodiment.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 60 parts of rubber powder, 20 parts of waste engine oil, 4 parts of viscosity reducer And 1 part of stabilizer.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the second embodiment.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made of the following raw materials: 100 parts of base asphalt, 65 parts of rubber powder, 20 parts of waste engine oil, 4 parts of viscosity reducer And 2 parts of stabilizer.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the second embodiment.
- This example presents a modified asphalt with a high content of modified rubber powder, in parts by weight, made from the following raw materials: 100 parts of base asphalt, 65 parts of rubber powder, 10 parts of waste engine oil, 4 parts of viscosity reducer And 1.5 parts of stabilizer.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the second embodiment.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 60 parts of rubber powder, 20 parts of waste engine oil, 4 parts of viscosity reducer And 1.5 parts of stabilizer.
- the asphalt in this embodiment is Karamay 90# road petroleum asphalt.
- the preparation method of the modified asphalt with a high content of modified rubber powder in this embodiment is the same as that in the second embodiment.
- This example provides a modified asphalt with a high content of modified rubber powder, which is based on parts by weight and is made from the following raw materials: 100 parts of base asphalt, 60 parts of rubber powder, 20 parts of waste engine oil, 4 parts of viscosity reducer And 1.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the raw material of the modified asphalt with high content of modified rubber powder.
- the method includes the following steps:
- Step 1) and step 2) are the same as the embodiment 2.
- Step 3 High temperature, high speed shear and viscosity reduction of the premix:
- Step 2) After the end, remove the shearing machine, and continue to increase the temperature, immerse the shearing machine head under 1.5cm of asphalt and at a certain distance from the bottom of the container, and turn on the shearing machine to 3000r when the temperature reaches 230°C /min, control the temperature between 230-240°C, add viscosity reducer (polyethylene wax) after shearing for 1.5 hours and shearing for 2 hours to prepare modified asphalt with high content of modified rubber powder.
- viscosity reducer polyethylene wax
- This example provides a modified asphalt with a high content of modified rubber powder, in parts by weight, made from the following raw materials: 100 parts of base asphalt, 65 parts of rubber powder, 25 parts of waste engine oil, 4 parts of viscosity reducer And 1.5 parts of stabilizer.
- the method for preparing modified asphalt with high content of modified rubber powder in this embodiment adopts the raw material of the modified asphalt with high content of modified rubber powder.
- the method includes the following steps:
- Step 1) and step 2) are the same as in Example 3.
- Step 3 High temperature, high speed shear and viscosity reduction of the premix:
- Step 2 After the end, remove the shearing machine, and continue to increase the temperature, immerse the shearing machine head under 1.5cm of asphalt and at a certain distance from the bottom of the container, and turn on the shearing machine to 3000r when the temperature reaches 230°C /min, the temperature is controlled between 230 ⁇ 240°C, after shearing for 1.5 hours, viscosity reducing agent is added and then shearing for 2.5 hours to prepare high content modified rubber powder modified asphalt.
- Modification of rubber powder can reduce the viscosity of modified asphalt with high content of rubber powder and improve its stability.
- Modification of rubber powder without adding waste engine oil can improve the stability of modified asphalt with high content of rubber powder, but it is worse than modified rubber powder after adding waste engine oil.
- Microwave heating can promote the cracking of rubber powder, increase the amount of rubber powder, and ensure the compatibility of rubber powder and asphalt in the modified asphalt with high content of modified rubber powder.
- waste engine oil can only improve the effect of reducing viscosity.
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Abstract
Description
项目 | 溶胶含量(%) | 密度(kg/m 3) | S‐S含量(%) |
橡胶粉:废旧机油=9:2 | 18.5 | 315.6 | 0.0110 |
橡胶粉:废旧机油=9:5 | 29.8 | 325.4 | 0.0069 |
橡胶粉:废旧机油=13:2 | 12.2 | 310.4 | 0.0150 |
橡胶粉:废旧机油=10:5 | 28.3 | 323.3 | 0.0073 |
橡胶粉:废旧机油=10:3 | 24.3 | 320.3 | 0.0080 |
橡胶粉:废旧机油=10:0 | 8.1 | 302.5 | 0.0180 |
Claims (10)
- 废旧机油在橡胶粉改性方面的应用。
- 废旧机油在高掺量改性橡胶粉改性沥青方面的应用。
- 一种改性橡胶粉,其特征在于:其组分包括橡胶粉和废旧机油,按质量配比为,橡胶粉:废旧机油=9~13:2~5。
- 一种高掺量改性橡胶粉改性沥青,其特征在于:其组分包括基质沥青、橡胶粉、废旧机油、降粘剂和稳定剂。
- 根据权利要求4所述的一种高掺量改性橡胶粉改性沥青,其特征在于:所述高掺量改性橡胶粉改性沥青的各组分按质量配比为,基质沥青:橡胶粉:废旧机油:降粘剂:稳定剂=100:45~65:10~25:3~5:0.5~2。
- 根据权利要求5所述的一种高掺量改性橡胶粉改性沥青,其特征在于,所述高掺量改性橡胶粉改性沥青的各组分按质量配比为,基质沥青:橡胶粉:废旧机油:降粘剂:稳定剂=100:50~60:15~25:3~5:1~2。
- 根据权利要求6所述的一种高掺量改性橡胶粉改性沥青,其特征在于:所述橡胶粉为40目废旧轮胎胶粉,所述降粘剂为聚乙烯蜡;所述稳定剂为聚乙烯。
- 一种高掺量改性橡胶粉改性沥青的制备方法,其特征在于,包括以下步骤:步骤1):按照质量比在橡胶粉中加入废旧机油并进行改性处理,得到改性橡胶粉;步骤2):按照质量比对基质沥青、改性橡胶粉和稳定剂进行预混;步骤3):对预混物进行高温、高速剪切和降黏。
- 根据权利要求8所述的一种高掺量改性橡胶粉改性沥青的制备方法,其特征在于,所述步骤1)具体为:步骤1.1)取橡胶粉置于容器中,向容器中加入配方量的废旧机油;步骤1.2)将废旧机油和橡胶粉搅拌充分后进行预溶胀:将配比好的橡胶粉和废旧机油搅拌均匀后置于50‐70℃环境中持续0.8‐1.2h,使废旧机油和橡胶粉充分浸润;步骤1.3):将充分浸润的混合物用微波改性法进行改性处理,之后取出冷却,得到改性橡胶粉;所述步骤2)具体为:步骤2.1):将100份质量的基质沥青放置于改性容器,将承载着基质沥青的改性容器放入150‐170℃的环境中持续80‐100min,使基质沥青完全软化,软化后继续加热至170‐190℃;之后利用热源将软化后的沥青的温度控制在175~180℃;步骤2.2):将温度控制在175~180℃的基质沥青持续搅拌并加入步骤1)得到的所有改性橡胶粉;步骤2.3):待改性橡胶粉全部加入后,持续将温度控制在175~180℃并保持搅拌,然后向混合物中加入配方量的稳定剂;步骤2.4)待稳定剂全部加入后将混合物的温度控制在175~180℃并加速搅拌,加速搅拌的持续时间为0.7‐1.3h。
- 根据权利要求9所述的一种高掺量改性橡胶粉改性沥青的制备方法, 其特征在于:所述步骤3)具体为:将步骤2)所得的混合物加热升温至230‐240℃,恒温搅拌1.3‐1.7h,之后加入降粘剂并持续搅拌2.3‐2.7h后得到高掺量改性橡胶粉改性沥青。
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CN113122013A (zh) * | 2021-05-25 | 2021-07-16 | 山东交通学院 | 一种掺加废弃机油残留物的岩改沥青及其制备方法 |
CN114685846A (zh) * | 2022-04-14 | 2022-07-01 | 同济大学 | 一种超临界解交联预处理胶粉与胶粉改性沥青及其制备方法 |
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CN110358164A (zh) * | 2019-07-19 | 2019-10-22 | 长安大学 | 一种废旧机油在橡胶改性方面的应用 |
CN114854218A (zh) * | 2022-03-28 | 2022-08-05 | 东南大学 | 一种大掺量橡胶改性沥青及其制备方法与应用 |
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