CN115216160A - Reinforcing agent applied to production of modified asphalt and preparation method thereof - Google Patents

Reinforcing agent applied to production of modified asphalt and preparation method thereof Download PDF

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CN115216160A
CN115216160A CN202210950038.XA CN202210950038A CN115216160A CN 115216160 A CN115216160 A CN 115216160A CN 202210950038 A CN202210950038 A CN 202210950038A CN 115216160 A CN115216160 A CN 115216160A
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陈守明
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Foshan Shunde Xin Road Material Technology Co ltd
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Abstract

The invention provides a reinforcing agent applied to modified asphalt production and a preparation method thereof, relating to the technical field of asphalt ingredients and comprising the following components in percentage by mass: 30-60 parts of waste plastic film, 1-2.5 parts of calcium stearate, 5-9 parts of carbon nano tube, 5-15 parts of clay, 3-12 parts of rubber emulsion, 0.1-0.2 part of flocculating agent, 1-5 parts of ore fiber, 0.5-2 parts of POE (8150 type), and 0.5-2 parts of beta-crystal form nucleating agent; according to the invention, the silane coupling agent and the magnesium salt crystal are used as the stiffening material to improve the rigidity of the asphalt, the mineral fiber is used to improve the hardness of the asphalt, the waste plastic film, the calcium stearate, the POE (8150 type) and the beta-crystal nucleating agent are used to prepare the particles, and after the particles are added into the asphalt, the characteristics of PVC, PE and the like are used, so that the toughness and stability of the asphalt material are improved, and in conclusion, the toughness is improved while the hardness of the asphalt is improved, and the cracking and other conditions are reduced.

Description

Reinforcing agent applied to production of modified asphalt and preparation method thereof
Technical Field
The invention relates to the technical field of asphalt ingredients, in particular to a reinforcing agent applied to production of modified asphalt and a preparation method thereof.
Background
The asphalt material is one of the common materials in road engineering, the modified asphalt improves the road performance of the asphalt material and the asphalt mixture by adding a modifier, along with the development of social economy, the traffic volume is continuously increased, the proportion of heavy-duty vehicles shows a continuously increasing trend, great challenges are brought to the quality of the road surface, and a plurality of newly-built asphalt road surfaces have serious problems of swelling, breaking and the like, which is mainly caused by insufficient high-temperature stability of the road surface material, and the asphalt as the most important component part in the road surface material plays a decisive role in the quality of the road surface, so that an ideal asphalt material can meet the following requirements: has higher strength at high temperature, lower strength at low temperature and good anti-stripping effect in the presence of water, the material is not easy to soften at high temperature in summer and not easy to crack at low temperature;
in order to improve asphalt in a desired direction, in the prior art, for example, the publication No. CN 109810523B discloses "asphalt reinforcing agent and its application in modified heavy traffic asphalt", and specifically discloses: the raw materials comprise functional mineral powder and modified basalt fiber, so that the high-temperature stability and low-temperature cracking resistance of the asphalt can be obviously improved, the modified heavy traffic asphalt can meet the road use performance, and the road service life is prolonged; however, in the above technology, the hardness of the asphalt is mainly increased, the elastic recovery modulus of the asphalt is not improved at all, and the risk of deformation and cracking still exists in extreme weather, so the invention provides a reinforcing agent applied to the production of modified asphalt and a preparation method thereof to solve the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the invention provides a reinforcing agent applied to the production of modified asphalt and a preparation method thereof, and the reinforcing agent applied to the production of modified asphalt and the preparation method thereof can improve the hardness of asphalt, improve the toughness, reduce the cracking and the like.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: the reinforcing agent applied to the production of the modified asphalt comprises the following components in percentage by mass: 30-60 parts of waste plastic film, 1-2.5 parts of calcium stearate, 5-9 parts of carbon nano tube, 5-15 parts of clay, 3-12 parts of rubber emulsion, 0.1-0.2 part of flocculant, 1-5 parts of ore fiber, 0.5-2 parts of POE (8150 type), 0.5-2 parts of beta-crystal form nucleating agent, 5-25 parts of lubricating oil, 0.3-0.5 part of benzophenone, 0.1-0.2 part of silane coupling agent, 2-4 parts of magnesium salt crystal and 25-35 parts of polyethylene resin.
The further improvement lies in that: comprises the following components in percentage by mass: 50 parts of waste plastic film, 2 parts of calcium stearate, 7 parts of carbon nano tube, 8 parts of clay, 8 parts of rubber emulsion, 0.15 part of flocculating agent, 3 parts of ore fiber, 1 part of POE (8150 type), 1 part of beta-crystal nucleating agent, 20 parts of lubricating oil, 0.4 part of benzophenone, 0.15 part of silane coupling agent, 3 parts of magnesium salt crystal and 30 parts of polyethylene resin.
The further improvement lies in that: the clay is a mixture of kaolin, montmorillonite and bentonite, and the waste plastic film comprises a waste film for agricultural land, a packaging film and a plastic bag.
The further improvement is that: the mineral fiber is basalt fiber, and the silane coupling agent is one of H550 and KH 570.
A preparation method of a reinforcing agent applied to production of modified asphalt comprises the following steps:
the method comprises the following steps: cleaning a waste plastic film, removing impurities, air-drying, cutting into film, crushing, putting into a mixer, adding calcium stearate, and mixing to obtain a mixed material;
step two: adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture material, mixing, removing water, feeding into a pulverizer, and uniformly pulverizing into particles;
step three: adding water into clay according to the proportion of 1: 2, stirring and mixing to form a clay water suspension, adding rubber emulsion and a flocculating agent into the suspension, and enabling the clay and the emulsion to be interpenetrated into a blend;
step four: stirring and mixing a silane coupling agent and magnesium salt crystals to obtain a stiffening material, and storing the stiffening material in a sealed environment for later use;
step five: taking out the blend, stirring and mixing the blend, the polyethylene resin and the mineral fiber in a stirrer, then adding lubricating oil, mixing and standing to obtain a base material;
step six: adding the stiffening material, the carbon nano tube and the benzophenone into the base material, homogenizing and mixing in a homogenizer, then extruding and molding the mixture, cooling, cutting and crushing into a granular product.
The further improvement lies in that: in the first step, the membrane fragments are placed into a mixer, calcium stearate is added for mixing, the mixing time is 30-60min and is controlled to be 100-120r/min, and the mixing is controlled at normal temperature.
The further improvement lies in that: and in the second step, adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture, mixing for 20-40min, controlling the rotating speed to be 100-150r/min per minute, then putting the mixture into a centrifuge to separate water, and drying the mixture by hot air to reduce the water content to below 1%.
The further improvement lies in that: in the third step, water and water clay are stirred and mixed at the rotating speed of 2500-3000r/min to form a stable clay water suspension, rubber emulsion is mixed and stirred to ensure that a clay crystal layer and latex particles are mutually interpenetrated and separated, and flocculating agent is added for solidification to obtain a blend.
The further improvement lies in that: and step five, stirring and mixing the blend, the polyethylene resin and the mineral fiber in a stirrer at the mixing temperature of 80-110 ℃ for 3-6h, then adding lubricating oil, stirring at 90 ℃ for 2-4h, and standing for 12h after mixing to obtain the base material.
The further improvement is that: and in the sixth step, the stiffening material, the carbon nano tube and the benzophenone are added into the base material, wherein the stiffening material and the benzophenone are added firstly, the carbon nano tube is added after the homogenization is carried out for 25min, the homogenization is carried out for 15min, the mixture is extruded and molded at the temperature of 110-180 ℃, and the mixture is cut and crushed into particle products after the vacuum cooling.
The beneficial effects of the invention are as follows:
1. according to the invention, the silane coupling agent and the magnesium salt crystal are used as the stiffening material to improve the rigidity of the asphalt, the mineral fiber is used to improve the hardness of the asphalt, the waste plastic film, the calcium stearate, the POE (8150 type) and the beta-crystal nucleating agent are used to prepare the particles, and after the particles are added into the asphalt, the characteristics of PVC, PE and the like are used, so that the toughness and stability of the asphalt material are improved, and in conclusion, the toughness is improved while the hardness of the asphalt is improved, and the cracking and other conditions are reduced.
2. According to the invention, the clay crystal layer and the latex particles are interpenetrated to obtain the blend, so that the tensile strength, the elastic modulus, the thermal deformation temperature, the barrier property and the like can be improved, the elastic recovery modulus of the asphalt can be increased, and a stable colloid is formed in the asphalt under the action of the polyethylene resin and the benzophenone, so that the interface strength is greatly improved.
3. The carbon nano tube is added, so that the tensile strength, impact toughness, aging strength and the like of the asphalt, thermal stability and hardness are improved, and the asphalt is better reinforced.
4. The invention uses the waste plastic film as the filler, is beneficial to treating white pollution, and is environment-friendly and sustainable.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
The embodiment provides a reinforcing agent applied to modified asphalt production, which comprises the following components in percentage by mass: 30 parts of waste plastic film, 1 part of calcium stearate, 5 parts of carbon nano tube, 5 parts of clay, 3 parts of rubber emulsion, 0.1 part of flocculating agent, 1 part of ore fiber, 0.5 part of POE (8150 type), 0.5 part of beta-crystal nucleating agent, 5 parts of lubricating oil, 0.3 part of benzophenone, 0.1 part of silane coupling agent, 2 parts of magnesium salt crystal and 25 parts of polyethylene resin; the clay is a mixture of kaolin, montmorillonite and bentonite, and the waste plastic film comprises a waste film for farmlands, a packaging film and a plastic bag; the mineral fiber is basalt fiber, and the silane coupling agent is H550.
According to the illustration in fig. 1, this example proposes a method for preparing a reinforcing agent for use in modified asphalt production, comprising the following steps:
the method comprises the following steps: cleaning waste plastic films, removing impurities, air-drying, cutting into pieces, placing into a mixer, adding calcium stearate, mixing for 50min at 120r/min at normal temperature to obtain a mixed material;
step two: adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture, mixing for 30min, controlling the rotating speed at 150r/min per minute, then putting the mixture into a centrifuge to separate water, drying the mixture by hot air to reduce the water content to below 1 percent, sending the mixture into a crusher, and uniformly crushing the mixture into particles; the granules are prepared by using waste plastic films, calcium stearate, POE (8150 type) and a beta-crystal nucleating agent, and after the granules are added into asphalt, the characteristics of PVC, PE and the like are utilized, so that the toughness and the stability of the asphalt material are improved;
step three: adding water into clay according to the proportion of 1: 2, stirring and mixing to form a stable clay water suspension, mixing and stirring rubber emulsion to enable a clay crystal layer and latex particles to be mutually interpenetrated and separated, and adding a flocculating agent to cure to obtain a mixture; the clay crystal layer and the latex particles are interpenetrated to obtain a blend, and when the blend is added into asphalt, the polymer long-chain structure and good processability are combined, so that the tensile strength, the elastic modulus, the thermal deformation temperature, the barrier property and the like can be improved, the elastic recovery modulus of the asphalt can be increased, the recovery is facilitated after extreme weather occurs, and the cracking risk is further reduced;
step four: stirring and mixing a silane coupling agent and magnesium salt crystals to obtain a stiffening material, and storing the stiffening material in a sealed environment for later use; the rigidity of the asphalt is improved by using a silane coupling agent and magnesium salt crystals as stiffening materials;
step five: taking out the blend, stirring and mixing the blend, the polyethylene resin and the mineral fiber in a stirrer at the mixing temperature of 100 ℃ for 4 hours, then adding lubricating oil, stirring at the temperature of 90 ℃ for 3 hours, and standing for 12 hours after mixing to obtain a base material; the hardness of the asphalt is improved by using the ore fiber; the colloid is formed in the asphalt under the action of the polyethylene resin, so that the interface strength is greatly improved, and the stability and strength of the colloid are improved by matching with the light stabilization effect provided by the subsequent benzophenone;
step six: adding the stiffening material, the carbon nano tube and the benzophenone into the base material, wherein the stiffening material and the benzophenone are added firstly, the carbon nano tube is added after the homogenization is carried out for 25min, the homogenization is carried out for 15min, the mixture is extruded and molded at the temperature of 170 ℃, and the mixture is cut and crushed into particle products after the vacuum cooling. The carbon nano tube is added, so that the tensile strength, impact toughness, aging strength and the like, thermal stability and hardness of the asphalt can be improved, and the asphalt is better reinforced.
Example two
The embodiment provides a reinforcing agent applied to modified asphalt production, which comprises the following components in percentage by mass: 50 parts of waste plastic film, 2 parts of calcium stearate, 7 parts of carbon nano tube, 8 parts of clay, 8 parts of rubber emulsion, 0.15 part of flocculant, 3 parts of ore fiber, 1 part of POE (8150 type), 1 part of beta-crystal nucleating agent, 20 parts of lubricating oil, 0.4 part of benzophenone, 0.15 part of silane coupling agent, 3 parts of magnesium salt crystal and 30 parts of polyethylene resin; the clay is a mixture of kaolin, montmorillonite and bentonite, and the waste plastic film comprises a waste film for agricultural land, a packaging film and a plastic bag; the mineral fiber is basalt fiber, and the silane coupling agent is H550.
According to the illustration in fig. 1, this example proposes a method for preparing a reinforcing agent for use in modified asphalt production, comprising the following steps:
the method comprises the following steps: cleaning waste plastic films, removing impurities, air-drying, cutting into pieces, placing into a mixer, adding calcium stearate, mixing for 50min at 120r/min at normal temperature to obtain a mixed material;
step two: adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture, mixing for 30min, controlling the rotating speed at 150r/min per minute, then putting the mixture into a centrifuge to separate water, drying the mixture by hot air to reduce the water content to below 1 percent, sending the mixture into a crusher, and uniformly crushing the mixture into particles; the granules are prepared by using waste plastic films, calcium stearate, POE (8150 type) and a beta-crystal nucleating agent, and after the granules are added into asphalt, the characteristics of PVC, PE and the like are utilized, so that the toughness and the stability of the asphalt material are improved;
step three: adding water into clay according to the proportion of 1: 2, stirring and mixing to form a stable clay water suspension, mixing and stirring rubber emulsion to enable a clay crystal layer and latex particles to be mutually interpenetrated and separated, and adding a flocculating agent to cure to obtain a mixture; the clay crystal layer and the latex particles are interpenetrated to obtain a blend, and when the blend is added into asphalt, the polymer long-chain structure and good processability are combined, so that the tensile strength, the elastic modulus, the thermal deformation temperature, the barrier property and the like can be improved, the elastic recovery modulus of the asphalt can be increased, the recovery is facilitated after extreme weather occurs, and the cracking risk is further reduced;
step four: stirring and mixing a silane coupling agent and magnesium salt crystals to obtain a stiffening material, and storing the stiffening material in a sealed environment for later use; the rigidity of the asphalt is improved by using a silane coupling agent and magnesium salt crystals as a stiffening material;
step five: taking out the blend, stirring and mixing the blend, polyethylene resin and mineral fiber in a stirrer at the mixing temperature of 100 ℃ for 4h, then adding lubricating oil, stirring at the temperature of 90 ℃ for 3h, and standing for 12h after mixing to obtain a base material; the hardness of the asphalt is improved by using the ore fiber; the colloid is formed in the asphalt under the action of the polyethylene resin, so that the interface strength is greatly improved, and the stability and strength of the colloid are improved by matching with the light stabilization effect provided by the subsequent benzophenone;
step six: adding the stiffening material, the carbon nano tube and the benzophenone into the base material, wherein the stiffening material and the benzophenone are added firstly, the carbon nano tube is added after the homogenization is carried out for 25min, the homogenization is carried out for 15min, the mixture is extruded and molded at the temperature of 170 ℃, and the mixture is cut and crushed into particle products after the vacuum cooling. The carbon nano tube is added, so that the tensile strength, impact toughness, aging strength and the like of the asphalt, thermal stability and hardness are improved, and the asphalt is better reinforced.
EXAMPLE III
The embodiment provides a reinforcing agent applied to modified asphalt production, which comprises the following components in percentage by mass: 60 parts of waste plastic film, 2.5 parts of calcium stearate, 9 parts of carbon nano tube, 15 parts of clay, 12 parts of rubber emulsion, 0.2 part of flocculating agent, 5 parts of ore fiber, 2 parts of POE (8150 type), 2 parts of beta-crystal nucleating agent, 25 parts of lubricating oil, 0.5 part of benzophenone, 0.2 part of silane coupling agent, 4 parts of magnesium salt crystal and 35 parts of polyethylene resin; the clay is a mixture of kaolin, montmorillonite and bentonite, and the waste plastic film comprises a waste film for agricultural land, a packaging film and a plastic bag; the mineral fiber is basalt fiber, and the silane coupling agent is H550.
As shown in fig. 1, this embodiment proposes a preparation method of a reinforcing agent applied to modified asphalt production, including the following steps:
the method comprises the following steps: cleaning waste plastic films, removing impurities, air-drying, cutting into pieces, placing into a mixer, adding calcium stearate, mixing for 50min at 120r/min at normal temperature to obtain a mixed material;
step two: adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture, mixing for 30min, controlling the rotating speed at 150r/min per minute, then putting the mixture into a centrifuge to separate water, drying the mixture by hot air to reduce the water content to below 1 percent, sending the mixture into a crusher, and uniformly crushing the mixture into particles; the granules are prepared by using waste plastic films, calcium stearate, POE (8150 type) and beta-crystal nucleating agent, and after the granules are added into asphalt, the characteristics of PVC, PE and the like are utilized, so that the toughness and stability of the asphalt material are improved;
step three: adding water into clay according to the proportion of 1: 2, stirring and mixing to form a stable clay water suspension, mixing and stirring rubber emulsion to enable a clay crystal layer and latex particles to be mutually interpenetrated and separated, and adding a flocculating agent to cure to obtain a mixture; the clay crystal layer and the latex particles are interpenetrated to obtain a blend, and when the blend is added into asphalt, the polymer long-chain structure and good processability are combined, so that the tensile strength, the elastic modulus, the thermal deformation temperature, the barrier property and the like can be improved, the elastic recovery modulus of the asphalt can be increased, the recovery is facilitated after extreme weather occurs, and the cracking risk is further reduced;
step four: stirring and mixing a silane coupling agent and magnesium salt crystals to obtain a stiffening material, and storing the stiffening material in a sealed environment for later use; the rigidity of the asphalt is improved by using a silane coupling agent and magnesium salt crystals as stiffening materials;
step five: taking out the blend, stirring and mixing the blend, polyethylene resin and mineral fiber in a stirrer at the mixing temperature of 100 ℃ for 4h, then adding lubricating oil, stirring at the temperature of 90 ℃ for 3h, and standing for 12h after mixing to obtain a base material; the hardness of the asphalt is improved by using the ore fiber; the colloid is formed in the asphalt under the action of the polyethylene resin, so that the interface strength is greatly improved, and the stability and strength of the colloid are improved by matching with the light stabilization effect provided by the subsequent benzophenone;
step six: adding the stiffening material, the carbon nano tube and the benzophenone into the base material, wherein the stiffening material and the benzophenone are added firstly, the carbon nano tube is added after the homogenization is carried out for 25min, the homogenization is carried out for 15min, the mixture is extruded and molded at the temperature of 170 ℃, and the mixture is cut and crushed into particle products after the vacuum cooling. The carbon nano tube is added, so that the tensile strength, impact toughness, aging strength and the like of the asphalt, thermal stability and hardness are improved, and the asphalt is better reinforced.
According to the first embodiment, the second embodiment and the third embodiment, the invention comprises the following components in percentage by mass: 30-60 parts of waste plastic film, 1-2.5 parts of calcium stearate, 5-9 parts of carbon nano tube, 5-15 parts of clay, 3-12 parts of rubber emulsion, 0.1-0.2 part of flocculating agent, 1-5 parts of ore fiber, 0.5-2 parts of POE (8150 type), 0.5-2 parts of beta-crystal form nucleating agent, 5-25 parts of lubricating oil, 0.3-0.5 part of benzophenone, 0.1-0.2 part of silane coupling agent, 2-4 parts of magnesium salt crystal and 25-35 parts of polyethylene resin, wherein the prepared reinforcing agent improves the hardness of asphalt and simultaneously improves the toughness and reduces the conditions of cracking and the like; the elastic recovery modulus of the asphalt is increased, the asphalt can be recovered conveniently after meeting extreme weather, and the risk of cracking is further reduced; and the interface strength is greatly improved.
Verification example:
the product has excellent compatibility with asphalt, stable performance and no precipitation and segregation.
The needle penetration reducing effect is obvious, the needle penetration index PI is improved, and the corrosion to equipment is avoided; the penetration degree can be reduced by 5-8 units by adding the product into matrix asphalt or modified asphalt according to the proportion of 0.5%; if the amount of the compound is 1%, the penetration can be reduced by 8 to 12 units.
The softening point is improved, the influence on ductility is less, the SBS dosage is effectively reduced, and the SBS dosage can be reduced by 0.2-0.5% by adding the product into the modified asphalt in a proportion of 0.5-1.0%.
The PG grade is improved, and the pavement performance of the modified asphalt is enhanced.
The asphalt can be added at any time, has stable quality, can be synchronously added into the asphalt with SBS, and does not increase the labor intensity and the production cost.
When the product is used for blending the heavy traffic asphalt (for example, high-grade asphalt is adjusted to low-grade asphalt), the dosage of the reinforcing agent is calculated according to the proportion by blending the dosage of the heavy traffic asphalt as required, part of the heavy traffic asphalt is heated to 175-185 ℃, the product is added according to the concentration of 10-15% and is stirred for 2-3 hours until the mixture is dissolved and dispersed, and then the mixture is stirred and mixed with the rest heavy traffic asphalt at 135 ℃.
When the product is used for modified asphalt, the product can be synchronously added into the asphalt with SBS without changing the original production process, and can also be added into the modified asphalt finished product according to the requirements, and the effect is also ideal.
Figure BDA0003789167130000101
According to the invention, the silane coupling agent and the magnesium salt crystal are used as the stiffening material to improve the rigidity of the asphalt, the mineral fiber is used to improve the hardness of the asphalt, the waste plastic film, the calcium stearate, the POE (8150 type) and the beta-crystal nucleating agent are used to prepare the particles, and after the particles are added into the asphalt, the characteristics of PVC, PE and the like are used, so that the toughness and stability of the asphalt material are improved, and in conclusion, the toughness is improved while the hardness of the asphalt is improved, and the cracking and other conditions are reduced. The invention obtains the blend by inserting the clay crystal layer and the latex particles, combines the polymer long chain structure and good processability in the asphalt, can improve the tensile strength, the elastic modulus, the thermal deformation temperature, the barrier property and the like, is favorable for increasing the elastic recovery modulus of the asphalt, is convenient to recover in extreme weather, further reduces the risk of cracking, forms stable colloid in the asphalt by matching with the action of the polyethylene resin and the benzophenone, and greatly improves the interface strength. Meanwhile, the carbon nano tube is added, so that the tensile strength, impact toughness, aging strength and the like, thermal stability and hardness of the asphalt are improved, and the asphalt is better reinforced. Finally, the invention uses the waste plastic film as the filler, which is beneficial to controlling white pollution and is environment-friendly and sustainable.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The reinforcing agent applied to production of modified asphalt is characterized by comprising the following components in percentage by mass: 30-60 parts of waste plastic film, 1-2.5 parts of calcium stearate, 5-9 parts of carbon nano tube, 5-15 parts of clay, 3-12 parts of rubber emulsion, 0.1-0.2 part of flocculating agent, 1-5 parts of ore fiber, 0.5-2 parts of POE (8150 type), 0.5-2 parts of beta-crystal form nucleating agent, 5-25 parts of lubricating oil, 0.3-0.5 part of benzophenone, 0.1-0.2 part of silane coupling agent, 2-4 parts of magnesium salt crystal and 25-35 parts of polyethylene resin.
2. The reinforcing agent applied to the production of modified asphalt according to claim 1, characterized in that: comprises the following components in percentage by mass: 50 parts of waste plastic film, 2 parts of calcium stearate, 7 parts of carbon nano tube, 8 parts of clay, 8 parts of rubber emulsion, 0.15 part of flocculating agent, 3 parts of ore fiber, 1 part of POE (8150 type), 1 part of beta-crystal nucleating agent, 20 parts of lubricating oil, 0.4 part of benzophenone, 0.15 part of silane coupling agent, 3 parts of magnesium salt crystal and 30 parts of polyethylene resin.
3. The reinforcing agent applied to the production of the modified asphalt according to claim 1, characterized in that: the clay is a mixture of kaolin, montmorillonite and bentonite, and the waste plastic film comprises a waste film for agricultural land, a packaging film and a plastic bag.
4. The reinforcing agent applied to the production of modified asphalt according to claim 1, characterized in that: the mineral fiber is basalt fiber, and the silane coupling agent is one of H550 and KH 570.
5. The preparation method of the reinforcing agent applied to modified asphalt production is characterized by comprising the following steps:
the method comprises the following steps: cleaning a waste plastic film, removing impurities, air-drying, then cutting into films, crushing into pieces, putting into a mixer, adding calcium stearate, and mixing to obtain a mixed material;
step two: adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture material, mixing, removing water, feeding into a pulverizer, and uniformly pulverizing into particles;
step three: adding water into clay according to the proportion of 1: 2, stirring and mixing to form a clay water suspension, adding rubber emulsion and a flocculating agent into the suspension, and enabling the clay and the emulsion to be interpenetrated into a blend;
step four: stirring and mixing a silane coupling agent and magnesium salt crystals to obtain a stiffening material, and storing the stiffening material in a sealed environment for later use;
step five: taking out the blend, stirring and mixing the blend, the polyethylene resin and the mineral fiber in a stirrer, then adding lubricating oil, mixing and standing to obtain a base material;
step six: adding the stiffening material, the carbon nano tube and the benzophenone into the base material, homogenizing and mixing in a homogenizer, then extruding and molding the mixture, cooling, cutting and crushing into a granular product.
6. The preparation method of the reinforcing agent applied to the production of the modified asphalt according to claim 5, characterized in that: in the first step, the membrane fragments are placed into a mixer, calcium stearate is added for mixing, the mixing time is 30-60min and is controlled to be 100-120r/min, and the mixing is controlled at normal temperature.
7. The preparation method of the reinforcing agent applied to the production of the modified asphalt according to claim 6, characterized in that: and in the second step, adding POE (8150 type) and a beta-crystal form nucleating agent into the mixture, mixing for 20-40min, controlling the rotating speed to be 100-150r/min per minute, then putting the mixture into a centrifuge to separate water, and drying the mixture by hot air to reduce the water content to below 1%.
8. The preparation method of the reinforcing agent applied to the production of the modified asphalt according to claim 7, characterized in that: in the third step, water and water clay are stirred and mixed at the rotating speed of 2500-3000r/min to form a stable clay water suspension, rubber emulsion is mixed and stirred to ensure that a clay crystal layer and latex particles are mutually interpenetrated and separated, and flocculating agent is added for solidification to obtain a blend.
9. The preparation method of the reinforcing agent applied to the production of the modified asphalt according to claim 8, characterized in that: and step five, stirring and mixing the blend, the polyethylene resin and the mineral fiber in a stirrer at the mixing temperature of 80-110 ℃ for 3-6h, then adding lubricating oil, stirring at 90 ℃ for 2-4h, and standing for 12h after mixing to obtain the base material.
10. The preparation method of the reinforcing agent applied to the production of the modified asphalt according to claim 9, characterized in that: and in the sixth step, the stiffening material, the carbon nano tube and the benzophenone are added into the base material, wherein the stiffening material and the benzophenone are added firstly, the carbon nano tube is added after the homogenization is carried out for 25min, the homogenization is carried out for 15min, the mixture is extruded and molded at the temperature of 110-180 ℃, and the mixture is cut and crushed into particle products after the vacuum cooling.
CN202210950038.XA 2022-08-09 2022-08-09 Reinforcing agent applied to production of modified asphalt and preparation method thereof Pending CN115216160A (en)

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Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1256703A (en) * 1998-03-10 2000-06-14 三井化学株式会社 Ethylene copolymer composition and use thereof
CN1821151A (en) * 2005-12-12 2006-08-23 湖北高科交通工程咨询有限公司 Asphalt road surface reinforcing material
CN101045821A (en) * 2007-04-29 2007-10-03 西安理工大学 Compound modified asphalt using package waste polymer and preparation method thereof
CN101979237A (en) * 2010-11-08 2011-02-23 庞澍华 Method for producing rubber-plastic blended product by using rubber powder of waste tires and waste plastic
CN103013143A (en) * 2012-12-13 2013-04-03 肖菁 High-elasticity modulus fiber composite asphalt
CN104830032A (en) * 2015-04-28 2015-08-12 江苏苏博特新材料股份有限公司 Asphalt temperature performance reinforcing agent, production method and applications thereof
JP2017159484A (en) * 2016-03-08 2017-09-14 平岡織染株式会社 Incombustible film material and manufacturing method therefor
US20190118408A1 (en) * 2016-05-24 2019-04-25 Sumitomo Bakelite Co., Ltd. Fiber-containing particulate resin structure, method for producing fiber-containing particulate resin structure, cured fiber-reinforced resin product, and fiber-reinforced resin molded article
CN109810523A (en) * 2019-01-29 2019-05-28 刘建军 Pitch reinforcing agent and its application in modified heavy traffic paving asphalt
CN109824289A (en) * 2019-03-28 2019-05-31 北京华建盛和科技发展有限公司 A kind of bituminous concrete high-modulus modifier and its preparation method and application
EP3553149A1 (en) * 2016-12-12 2019-10-16 Powdertech Co., Ltd. Iron oxide powder for brake friction material
CN110438862A (en) * 2019-08-22 2019-11-12 长安大学 A kind of assembled Plastic Base Asphalt Pavement structure and its construction technology
CN110550886A (en) * 2019-09-21 2019-12-10 扬州市建筑设计研究院有限公司 anti-rutting asphalt mixture and preparation method thereof
KR102108449B1 (en) * 2019-10-29 2020-05-08 권영화 Waterproof agent, waterproof sheet, composite waterproofing method and structure using the same
CN111548605A (en) * 2019-02-11 2020-08-18 天津恒吉生科技有限公司 Toughness enhancer for multiple regeneration of aged SBS (styrene butadiene styrene) modified asphalt and preparation method and application thereof
CN111873582A (en) * 2020-07-17 2020-11-03 新疆可耐金新材料科技有限责任公司 Durable SBS (styrene butadiene styrene) modified asphalt waterproof coiled material and preparation method thereof
CN112430012A (en) * 2020-12-10 2021-03-02 四川炬原玄武岩纤维科技有限公司 Basalt composite fiber and asphalt mixture containing basalt composite fiber

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1256703A (en) * 1998-03-10 2000-06-14 三井化学株式会社 Ethylene copolymer composition and use thereof
CN1821151A (en) * 2005-12-12 2006-08-23 湖北高科交通工程咨询有限公司 Asphalt road surface reinforcing material
CN101045821A (en) * 2007-04-29 2007-10-03 西安理工大学 Compound modified asphalt using package waste polymer and preparation method thereof
CN101979237A (en) * 2010-11-08 2011-02-23 庞澍华 Method for producing rubber-plastic blended product by using rubber powder of waste tires and waste plastic
CN103013143A (en) * 2012-12-13 2013-04-03 肖菁 High-elasticity modulus fiber composite asphalt
CN104830032A (en) * 2015-04-28 2015-08-12 江苏苏博特新材料股份有限公司 Asphalt temperature performance reinforcing agent, production method and applications thereof
JP2017159484A (en) * 2016-03-08 2017-09-14 平岡織染株式会社 Incombustible film material and manufacturing method therefor
US20190118408A1 (en) * 2016-05-24 2019-04-25 Sumitomo Bakelite Co., Ltd. Fiber-containing particulate resin structure, method for producing fiber-containing particulate resin structure, cured fiber-reinforced resin product, and fiber-reinforced resin molded article
EP3553149A1 (en) * 2016-12-12 2019-10-16 Powdertech Co., Ltd. Iron oxide powder for brake friction material
CN109810523A (en) * 2019-01-29 2019-05-28 刘建军 Pitch reinforcing agent and its application in modified heavy traffic paving asphalt
CN111548605A (en) * 2019-02-11 2020-08-18 天津恒吉生科技有限公司 Toughness enhancer for multiple regeneration of aged SBS (styrene butadiene styrene) modified asphalt and preparation method and application thereof
CN109824289A (en) * 2019-03-28 2019-05-31 北京华建盛和科技发展有限公司 A kind of bituminous concrete high-modulus modifier and its preparation method and application
CN110438862A (en) * 2019-08-22 2019-11-12 长安大学 A kind of assembled Plastic Base Asphalt Pavement structure and its construction technology
CN110550886A (en) * 2019-09-21 2019-12-10 扬州市建筑设计研究院有限公司 anti-rutting asphalt mixture and preparation method thereof
KR102108449B1 (en) * 2019-10-29 2020-05-08 권영화 Waterproof agent, waterproof sheet, composite waterproofing method and structure using the same
CN111873582A (en) * 2020-07-17 2020-11-03 新疆可耐金新材料科技有限责任公司 Durable SBS (styrene butadiene styrene) modified asphalt waterproof coiled material and preparation method thereof
CN112430012A (en) * 2020-12-10 2021-03-02 四川炬原玄武岩纤维科技有限公司 Basalt composite fiber and asphalt mixture containing basalt composite fiber

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
YINGHAO MIAO 等: "Influences of Interface Properties on the Performance of Fiber-Reinforced Asphalt Binder", 《POLYMERS》 *
刘尚乐: "《石油沥青及其在建筑中应用》", 中国建筑工业出版社 *

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Application publication date: 20221021