A pedestrian walkway anti-slip asphalt blanket and its preparation method
By combining modified ramie fiber and epoxy resin modified curing agent with anti-slip particles, an anti-slip asphalt material is prepared and coated with a single silicone adhesive film, which solves the problem of insufficient load-bearing capacity and anti-slip properties of traditional asphalt pedestrian walkways, and realizes a high-strength, anti-slip and environmentally friendly asphalt pavement.
Patent Information
- Application Number
- CN202410227973.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2044-02-29
AI Technical Summary
Traditional asphalt pedestrian walkways have poor load-bearing capacity, are prone to road surface cracking, cracking of the anti-slip wear layer, and insufficient anti-slip and water resistance.
Anti-slip asphalt material was prepared by compounding modified ramie fiber and epoxy resin modified curing agent, adding anti-slip particles, and coating the base fabric with a single silicone adhesive film to isolate the PET film from the adhesion of the anti-slip asphalt material.
It improves the mechanical properties and skid resistance of asphalt pavement, enhances the load-bearing capacity of the pavement, improves skid and water resistance, and also has green and environmentally friendly characteristics.
Smart Images

Figure CN118342861B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of road asphalt technology, specifically referring to a pedestrian anti-slip asphalt blanket and its preparation method. Background Technology
[0002] Pedestrian walkways are roads specifically designed for pedestrians, commonly used for activities such as walking, jogging, and cycling. Construction materials for pedestrian walkways typically include cement concrete, brick paving, and asphalt. Asphalt pavement is widely used in pedestrian walkway construction due to its high strength, durability, and excellent tire adhesion. However, with rising living standards and a growing pursuit of healthy lifestyles, pedestrian walkways are increasingly becoming primary venues for outdoor activities. These walkways bear significant weight, placing higher demands on their load-bearing capacity. Furthermore, slippery surfaces during rainy weather require pedestrians to avoid falls, necessitating good anti-slip and water-resistant properties.
[0003] The existing technologies currently have the following main problems: 1. Traditional asphalt pedestrian walkways have poor load-bearing capacity and are prone to road surface cracking; 2. Due to insufficient ductility, resin is prone to cracking of the anti-slip wear layer, so the anti-slip and water-resistant properties of pedestrian walkways need to be strengthened. Summary of the Invention
[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a non-slip asphalt blanket for pedestrian walkways and its preparation method. In order to solve the problem of poor load-bearing capacity and non-slip properties of traditional asphalt pedestrian walkways, the present invention proposes to prepare non-slip asphalt materials by preparing modified ramie fiber and epoxy resin modified curing agent, compounding the two, and adding non-slip particles, which not only improves the mechanical properties of asphalt pavement, but also achieves better non-slip properties. Moreover, the addition of modified ramie fiber is green and environmentally friendly.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention proposes a pedestrian anti-slip asphalt blanket, which includes a base fabric, an anti-slip asphalt material, and a single silicone adhesive film; the single silicone adhesive film is a PET film coated with a layer of silicone oil to isolate the adhesion between the PET film surface and the anti-slip asphalt material.
[0006] Preferably, the anti-slip asphalt material comprises the following components in parts by weight: 30-40 parts of asphalt matrix 90#, 15-20 parts of epoxy resin modified curing agent, 10-15 parts of anti-slip granules, 2-3 parts of pigment, 0.01-0.02 parts of dispersant, and 0.02-0.04 parts of stabilizer; the epoxy resin modified curing agent is prepared by reacting modified petroleum resin with modified tetraethylenepentamine.
[0007] Preferably, the preparation method of the anti-skid asphalt material specifically includes the following steps:
[0008] S1. Dissolve phenol in toluene, add petroleum resin, mix well, and cool to 0℃ to obtain a mixture. Slowly add BF3O(C2H5)2 to the mixture, react at 0-30℃ for 4-5 hours, adjust the pH to 9, wash with water until the solution pH is 7, and distill to obtain phenol-modified petroleum resin.
[0009] S2. Take phenol-modified petroleum resin, add epichlorohydrin, stir to dissolve, introduce nitrogen gas, heat to 75-80℃, add tetrabutylammonium bromide, react for 2-2.5h to obtain mixture 2, slowly add 30% NaOH solution to mixture 2, continue to react for 2-2.5h, pour the reaction solution into a separatory funnel, add toluene and deionized water, shake thoroughly, let stand, separate into layers, release the lower aqueous layer, wash with water until neutral, distill under reduced pressure, cool to obtain modified petroleum resin;
[0010] S3. Take tetraethylenepentamine, heat it to 60℃ in an oil bath for 5-8 minutes, add butyl acrylate dropwise while stirring at 20 r / min, and continue to add the modified petroleum resin prepared in S2. React fully for 5-6 hours to obtain epoxy resin modified curing agent.
[0011] S4. Take ramie, remove impurities, crush it in a crusher at 34000r / min for 20s, pass it through a 0.3mm sieve to obtain ramie fiber, wash it, dry it in an oven at 65℃ for 8-10h, add 10% tannic acid solution, stir for 60-80min, let it stand for 2-3h, stirring once every 30min during this period, and then place it in an oven at 60℃ for 10-12h to obtain modified ramie fiber;
[0012] S5. Take the modified ramie fiber prepared in S2, add the epoxy resin modified curing agent and asphalt matrix 90# prepared in S3, disperse at 500r / min for 15-20min, add the stabilizer, react for 20-25min, transfer to an oven at 170℃ to swell for 2-3h, and obtain the modified asphalt.
[0013] S6. Mix the pigments and dispersants to obtain a mixture. Add the modified asphalt prepared in S5 to the mixture and stir at 160-200℃ and 400-600r / min for 100-120min. Add the anti-skid granules and continue stirring for 100-120s to obtain the anti-skid asphalt material.
[0014] Preferably, in S1, the volume ratio of phenol to toluene is 1:6-7;
[0015] Preferably, in S1, the volume-to-mass ratio of phenol to petroleum resin is 2-5:1;
[0016] Preferably, in S1, the amount of BF3O(C2H5)2 added is 0.6% of the volume of the mixed liquid;
[0017] Preferably, in S2, the phenol-modified petroleum resin has a mass fraction of 5%-6% in epichlorohydrin;
[0018] Preferably, in S2, the amount of tetrabutylammonium bromide added is 1%-1.5% of epichlorohydrin;
[0019] Preferably, in S2, the amount of the 30% NaOH solution added is 8% of the mixture 2;
[0020] Preferably, in S3, the mass ratio of tetraethylenepentamine to butyl acrylate is 3-4:1;
[0021] Preferably, in S3, the mass ratio of tetraethylenepentamine to modified petroleum resin is 1:10-15;
[0022] Preferably, in step S4, the ratio of ramie fiber to tannic acid solution is 1:8-10;
[0023] Preferably, in step S5, the modified ramie fiber is added to the epoxy resin modifier at a concentration of 0.2%-0.3%.
[0024] Preferably, the ramie fiber is bamboo fiber with a fineness of 2-3 mm;
[0025] Preferably, the stabilizer is a sublimed sulfur stabilizer;
[0026] Preferably, the dispersant is calcium oxide and calcium carbonate, and the ratio of calcium oxide to calcium carbonate is 1:2;
[0027] Preferably, the anti-slip granules are ceramic particles and corundum, with a ratio of 2:3; the ceramic particles have a particle size of 1-2 mm, and the corundum has a particle size of 2-3 mm.
[0028] This invention also provides a method for preparing anti-slip asphalt blankets for pedestrian walkways, specifically including the following steps:
[0029] (1) Impregnation: The base fabric is impregnated in the anti-slip asphalt material pool. The walking speed is 10m / min-15m / min, and the temperature is controlled at 120-140℃. The total thickness of the base fabric and the anti-slip asphalt material after impregnation is controlled to 3mm to 4mm.
[0030] (2) Coating: A high-temperature resistant silicone adhesive film is bonded to the lower surface of the tire base fabric behind the anti-skid asphalt material. The silicone adhesive film is required to withstand temperatures above 160°C, and the width of the silicone adhesive film is 3-5 cm wider than the width of the tire base fabric.
[0031] (3) Cooling: The lower surface of the composite obtained in step four is rapidly cooled by spraying circulating water.
[0032] (4) Rolling: The asphalt blanket is rolled up using an adjustable speed roller. The length is generally 5-10m and the width is 1-2m.
[0033] The beneficial effects achieved by this invention are as follows:
[0034] Colored asphalt blankets are mainly used in pedestrian walkways. After the walkway hardens, the high-temperature monosilicone film is peeled off and directly pasted, making construction quick and convenient. It also possesses excellent road performance, high bonding strength, and wear resistance. The anti-slip asphalt material prepared in this invention involves preparing modified ramie fibers and an epoxy resin modifier / curing agent. Tannic acid is used to perform a biomimetic interface treatment on the ramie fibers. The epoxy groups in the epoxy resin modifier / curing agent react chemically with the phenolic hydroxyl groups of tannic acid to form a polymer layer, improving the interfacial bonding strength between the ramie fibers and the modified asphalt. Phenolic hydroxyl groups are introduced into petroleum resin, and epoxy resin is prepared by reacting it with epichlorohydrin. Epoxy resin is then selected... The curing agent tetraethylenepentamine can accelerate the curing speed, but it is prone to premature hardening during stirring, resulting in poor road performance and insufficient impact toughness. The tetraethylenepentamine is modified through addition reaction to reduce the intermolecular forces of grafted and epoxidized molecules on the side chains of the curing agent, thereby increasing toughness. Anti-slip particles are added to supplement the process. The raw materials in the anti-slip layer are mainly ceramic particles and corundum. These raw materials have many pores and a honeycomb structure, which gives them good compressive strength, shock resistance, and sound absorption and noise reduction functions. This not only ensures the strength of the paving bricks but also improves the permeability, thereby improving the mechanical properties of the asphalt pavement and achieving good anti-slip properties. In addition, the addition of modified ramie fiber is green and environmentally friendly. Attached Figure Description
[0035] Figure 1 The figures show the high-temperature rutting depth test results of the anti-skid asphalt materials prepared in the embodiments and comparative examples of the present invention;
[0036] Figure 2 The figures show the test results of the low-temperature crack resistance of the anti-skid asphalt materials prepared in the embodiments and comparative examples of the present invention;
[0037] Figure 3 The figures show the Marshall test results of the anti-skid asphalt materials prepared in the embodiments and comparative examples of the present invention after immersion in water;
[0038] Figure 4 The graph shows the friction coefficient results of the anti-slip asphalt blankets prepared in the embodiments and comparative examples of the present invention.
[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Implementation
[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those familiar to those skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be applied to this invention. The preferred embodiments and materials described herein are for illustrative purposes only and do not limit the scope of this application.
[0042] Unless otherwise specified, the experimental methods used in the following examples are conventional methods; unless otherwise specified, the experimental materials and test strains used in the following examples were purchased from commercial channels.
[0043] Petroleum resin (CAS: 68131-77-1) was purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd.
[0044] Phenol (CAS: 108-95-2) was purchased from Shanghai Maclean Biochemical Technology Co., Ltd.
[0045] BF3O(C2H5)2 (CAS: 109-63-7) was purchased from Shanghai Zhongwei Chemical Co., Ltd.
[0046] Epichlorohydrin (CAS: 106-89-8) was purchased from Shanghai Maclean Biochemical Technology Co., Ltd.
[0047] Tetraethylenepentamine (CAS: 112-57-2) was purchased from Shanghai Maclean Biochemical Technology Co., Ltd.
[0048] Butyl acrylate (CAS: 141-32-2) was purchased from Shanghai Maclean Biochemical Technology Co., Ltd. Example
[0049] A pedestrian walkway anti-slip asphalt blanket includes a base fabric, an anti-slip asphalt material, and a single silicone adhesive film; the single silicone adhesive film is a PET film coated with a layer of silicone oil to isolate the PET film surface from the adhesion of the anti-slip asphalt material.
[0050] The anti-slip asphalt material comprises the following components in parts by weight: 30 parts asphalt matrix 90#, 15 parts epoxy resin modified curing agent, 10 parts anti-slip granules, 2 parts pigment, 0.01 parts dispersant, and 0.02 parts stabilizer; the epoxy resin modified curing agent is prepared by reacting modified petroleum resin with modified tetraethylenepentamine.
[0051] Preferably, the preparation method of the anti-skid asphalt material specifically includes the following steps:
[0052] S1. Dissolve phenol in toluene at a volume ratio of 1:6. Add phenol to C9 stock solution at a volume-to-mass ratio of 2:1. Mix well and cool to 0℃ to obtain a mixture. Slowly add 0.6% (by volume) of BF3O(C2H5)2 to the mixture. React at 0℃ for 4 hours. Adjust the pH to 9. Wash with water until the pH of the solution is 7. Distill to obtain phenol-modified petroleum resin.
[0053] S2. Take phenol-modified petroleum resin and dissolve it in epichlorohydrin at a mass fraction of 5%. Purge with nitrogen and heat to 75°C. Add tetrabutylammonium bromide at an addition amount of 1% of epichlorohydrin. After reacting for 2 hours, obtain mixture 2. Add 30% NaOH solution slowly at an addition amount of 8% of mixture 2. After reacting for 2 hours, pour the reaction solution into a separatory funnel, add toluene and deionized water, shake thoroughly, let stand, separate into layers, release the lower aqueous layer, wash with water until neutral, distill under reduced pressure, and cool to obtain modified petroleum resin.
[0054] S3. Take tetraethylenepentamine, heat it to 60℃ in an oil bath for 5 minutes, add butyl acrylate at a mass ratio of 3:1 (tetraethylenepentamine to butyl acrylate) and stir at 20 r / min, add the modified petroleum resin prepared in S2 at a mass ratio of 1:10 (tetraethylenepentamine to modified petroleum resin), and react fully for 5 hours to obtain epoxy resin modified curing agent.
[0055] S4. Take ramie, remove impurities, crush it in a crusher at 34000r / min for 20s, pass it through a 0.3mm sieve to obtain ramie fiber, wash it with deionized water, dry it in an oven at 65℃ for 8h, add 10% tannic acid solution at a material-to-liquid ratio of ramie fiber to tannic acid solution of 1:8, stir for 60min, let it stand for 2h, stirring once every 30min during this period, and then place it in an oven at 60℃ for 10h to obtain modified ramie fiber;
[0056] S5. Take the modified ramie fiber prepared in S2, add the epoxy resin modified curing agent and asphalt matrix 90# prepared in S3, the modified ramie fiber is added to the epoxy resin modified curing agent at a dosage of 0.2%, dispersed at 500 r / min for 15 min, add sublimation sulfur stabilizer at 0.15% of the mass of the mixture, react for 20 min, transfer to an oven at 170℃ to swell for 2 h, and obtain modified asphalt;
[0057] S6. Mix the pigments and dispersants to obtain a mixture. Add the modified asphalt prepared in S3 to the mixture and stir at 160℃ and 400 rpm for 100 min. Add the anti-skid granules and continue stirring for 100 s to obtain the anti-skid asphalt material.
[0058] The dispersant is calcium oxide and calcium carbonate, with a ratio of 1:2.
[0059] The anti-slip granules are ceramic particles and corundum, with a ratio of 2:3; the ceramic particles have a particle size of 1-2 mm, and the corundum has a particle size of 2-3 mm.
[0060] This invention also provides a method for preparing anti-slip asphalt blankets for pedestrian walkways, specifically including the following steps:
[0061] (1) Impregnation: The base fabric is impregnated in the anti-slip asphalt material pool. The speed is 10m / min and the temperature is controlled at 120℃. The total thickness of the base fabric and the anti-slip asphalt material after impregnation is controlled to 3mm to 4mm.
[0062] (2) Coating: A high-temperature resistant silicone adhesive film is bonded to the lower surface of the tire base fabric behind the anti-skid asphalt material. The silicone adhesive film is required to withstand a high temperature of 160℃ or above, and the width of the silicone adhesive film is 3-5cm larger than the width of the tire base fabric.
[0063] (3) Cooling: The lower surface of the composite obtained in step four is rapidly cooled by spraying circulating water.
[0064] (4) Rolling: The asphalt blanket is rolled up using an adjustable speed roller. The length is generally 5-10m and the width is 1-2m. Example
[0065] A pedestrian walkway anti-slip asphalt blanket includes a base fabric, an anti-slip asphalt material, and a single silicone adhesive film; the single silicone adhesive film is a PET film coated with a layer of silicone oil to isolate the PET film surface from the adhesion of the anti-slip asphalt material.
[0066] The anti-slip asphalt material comprises the following components in parts by weight: 40 parts asphalt matrix 90#, 20 parts epoxy resin modified curing agent, 15 parts anti-slip granules, 3 parts pigment, 0.02 parts dispersant, and 0.04 parts stabilizer; the epoxy resin modified curing agent is prepared by reacting modified petroleum resin with modified tetraethylenepentamine.
[0067] Preferably, the preparation method of the anti-skid asphalt material specifically includes the following steps:
[0068] S1. Dissolve phenol in toluene at a volume ratio of 1:7. Add phenol to C9 stock solution at a volume-to-mass ratio of 5:1. Mix well and cool to 0℃ to obtain a mixture. Slowly add 0.6% (by volume) of BF3O(C2H5)2 to the mixture. React at 30℃ for 5 hours. Adjust the pH to 9. Wash with water until the pH of the solution is 7. Distill to obtain phenol-modified petroleum resin.
[0069] S2. Take phenol-modified petroleum resin and dissolve it in epichlorohydrin at a mass fraction of 6%. Purge with nitrogen and heat to 80°C. Add tetrabutylammonium bromide at an addition amount of 1.5% of epichlorohydrin. After reacting for 2.5 hours, obtain mixture 2. Add 30% NaOH solution slowly at an addition amount of 8% of mixture 2. After reacting for 2 hours, pour the reaction solution into a separatory funnel, add toluene and deionized water, shake thoroughly, let stand, separate into layers, release the lower aqueous layer, wash with water until neutral, distill under reduced pressure, and cool to obtain modified petroleum resin.
[0070] S3. Take tetraethylenepentamine, heat it to 60℃ in an oil bath for 8 minutes, add butyl acrylate at a mass ratio of 4:1 for tetraethylenepentamine to butyl acrylate and stir at 20 r / min, add the modified petroleum resin prepared in S2 at a mass ratio of 1:15 for tetraethylenepentamine to modified petroleum resin, and react fully for 6 hours to obtain epoxy resin modified curing agent.
[0071] S4. Take ramie, remove impurities, crush it in a crusher at 34000r / min for 20s, pass it through a 0.3mm sieve to obtain ramie fiber, wash it with deionized water, dry it in an oven at 65℃ for 10h, add 10% tannic acid solution at a material-to-liquid ratio of ramie fiber to tannic acid solution of 1:10, stir for 80min, let it stand for 3h, stirring once every 30min during this period, and then place it in an oven at 60℃ for 12h to obtain modified ramie fiber;
[0072] S5. Take the modified ramie fiber prepared in S2, add the epoxy resin modified curing agent and asphalt matrix 90# prepared in S3, the modified ramie fiber is added to the epoxy resin modified curing agent at a dosage of 0.3%, dispersed at 500 r / min for 20 min, add sublimed sulfur stabilizer at 0.15% of the mass of the mixture, react for 25 min, transfer to an oven at 170℃ to swell for 3 h, and obtain modified asphalt;
[0073] S6. Mix the pigments and dispersants to obtain a mixture. Add the modified asphalt prepared in S3 to the mixture and stir at 200℃ and 600r / min for 120min. Add the anti-skid granules and continue stirring for 120s to obtain the anti-skid asphalt material.
[0074] The dispersant is calcium oxide and calcium carbonate, with a ratio of 1:2.
[0075] The anti-slip granules are ceramic particles and corundum, with a ratio of 2:3; the ceramic particles have a particle size of 1-2 mm, and the corundum has a particle size of 2-3 mm.
[0076] In addition, the present invention also provides a method for preparing a non-slip asphalt blanket for pedestrian walkways, wherein the preparation method is carried out in accordance with Example 1.
[0077] Comparative Example 1
[0078] This comparative example provides a pedestrian anti-slip asphalt blanket and its preparation method. The only difference between this example and Example 1 is that tetraethylenepentamine is not modified in any of the components, i.e., butyl acrylate is not added. The other components and their contents are the same as in Example 1.
[0079] Comparative Example 2
[0080] This comparative example provides a pedestrian anti-slip asphalt blanket and its preparation method. The only difference between this example and Example 1 is that the C9 petroleum raw material is not modified in any of the components, while the other components and their contents are the same as in Example 1.
[0081] Comparative Example 3
[0082] This comparative example provides a pedestrian anti-slip asphalt blanket and its preparation method. The only difference between this example and Example 1 is that it does not contain modified ramie fiber in any of the components. The other components and their contents are the same as in Example 1.
[0083] Experimental Example
[0084] 1. In accordance with the Chinese standard test method for asphalt and asphalt mixtures for highway engineering (JTGE20-2011), the anti-skid asphalt material was evaluated for high-temperature rutting resistance, low-temperature crack resistance, and water immersion Marshall test. The water immersion Marshall test followed the standard test method T 0709–2011, and the water immersion residual stability index (IRS) of the water immersion Marshall specimen was calculated.
[0085] Figure 1-3 The figures shown are test results of the anti-skid asphalt materials prepared in the embodiments and comparative examples of the present invention for road performance. Figure 1 Example 1 has the smallest rut depth; such as Figure 2 The low-temperature crack resistance is mainly evaluated by two indicators: the maximum tensile strain (B) and the flexural stiffness modulus (SB) at failure. At -10℃, Comparative Example 1 has the highest flexural stiffness modulus (SB) at failure, indicating that its low-temperature crack resistance is the worst. The maximum tensile strain (εB) of the Example 1 is higher than that of Comparative Examples 2 and 3, indicating that its low-temperature crack resistance is the best. Figure 3 The embodiment exhibits the strongest resistance to water damage.
[0086] 2. Anti-slip test
[0087] The asphalt blankets for pedestrian walkways prepared by this invention and comparative examples were tested at fixed points according to the requirements of the "Specifications for Field Testing of Highway Subgrade and Pavement" (JTG3450-2019) to evaluate and analyze the anti-skid performance of the pavement.
[0088] Figure 4 The graph shows the friction coefficient results of the anti-slip asphalt blankets prepared in the embodiments and comparative examples of the present invention. The materials prepared using the method of the present invention have a friction coefficient higher than 0.70. The friction coefficient of comparative example 1 is about 0.52, the friction coefficient of comparative example 2 is about 0.59, and the friction coefficient of comparative example 3 is about 0.50. It can be seen that the materials prepared in the embodiments of the present invention have good anti-slip effect and excellent performance.
[0089] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
[0090] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention. The actual application is not limited to this. In conclusion, if those skilled in the art are inspired by this description and design similar methods and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A slip-resistant asphalt carpet for pedestrian walkways, characterized by: The application relates to a tire base cloth, anti-skid asphalt material and single-silicon adhesive film, and a preparation method of the anti-skid asphalt material. The preparation method of the anti-skid asphalt material specifically comprises the following steps: S1, phenol is dissolved in toluene, petroleum resin is added, the mixture is uniformly mixed, and then the temperature is reduced to 0 DEG C to obtain a mixed solution, BF3O(C2H5)2 is slowly added into the mixed solution, reaction is carried out at 0-30 DEG C for 4-5 h, the pH is adjusted to 9, water washing is carried out until the pH of the solution is 7, and distillation is carried out to obtain phenol-modified petroleum resin; S2, the phenol-modified petroleum resin is taken, epoxy chloropropane is added, stirring and dissolution are carried out, nitrogen is introduced, heating is carried out to 75-80 DEG C, tetrabutylammonium bromide is added, reaction is carried out for 2-2.5 h, then a mixed solution 2 is obtained, 30% NaOH solution is slowly added into the mixed solution 2, continuous reaction is carried out for 2-2.5 h, then the reaction liquid is injected into a separatory funnel, toluene and deionized water are added, full oscillation, standing, layering, discharging of the lower water liquid, water washing until neutral, reduced-pressure distillation, cooling, and then modified petroleum resin is obtained; S3, tetraethylenepentamine is taken, oil bath is carried out for 5-8 min, heating is carried out to 60 DEG C, butyl acrylate is added in drops under the condition of 20 r / min stirring, the modified petroleum resin prepared in S2 is continuously added, full reaction is carried out for 5-6 h, and then an epoxy resin modified curing agent is obtained; S4, ramie is taken, impurities are removed, the ramie is broken by a crusher at 34000 r / min for 20 s, and the ramie fibers are obtained by passing through a 0.3mm screen, the ramie fibers are washed, dried in a 65 DEG C oven for 8-10 h, 10% tannic acid solution is added, stirring is carried out for 60-80 min, standing is carried out for 2-3 h, stirring is carried out every 30 min during the standing, and then the ramie fibers are placed in a 60 DEG C oven for drying for 10-12 h to obtain modified ramie fibers; S5, the modified ramie fibers prepared in S2 are taken, the epoxy resin modified curing agent prepared in S3 and asphalt base 90# are added, 500 r / min dispersion is carried out for 15-20 min, the stabilizing agent is added, reaction is carried out for 20-25 min, and then the mixture is transferred to a 170 DEG C oven for swelling for 2-3 h to obtain modified asphalt; S6, the pigment and the dispersing agent are stirred and mixed to obtain a mixture, the modified asphalt prepared in S5 is added into the mixture, 160-200 DEG C, 400-600 r / min stirring and mixing are carried out for 100-120 min, the anti-skid granules are added, and continuous stirring is carried out for 100-120 s to obtain the anti-skid asphalt material.
2. The method for preparing a pedestrian walkway anti-slip asphalt blanket according to claim 1, characterized in that: The preparation method of the anti-skid asphalt material specifically comprises the following steps: (1) dip dyeing: dip dyeing the base fabric in the pool of anti-skid asphalt material, walking at a speed of 10-15 m / min, controlling the temperature at 120-140℃, controlling the total thickness of the base fabric after dip dyeing the anti-skid asphalt material to 3-4 mm; (2) film coating: bonding the high-temperature-resistant single silicon adhesive film on the lower surface of the base fabric after dip dyeing the anti-skid asphalt material, the single silicon adhesive film being required to be resistant to high temperature above 160℃, the width of the single silicon adhesive film being 3-5 cm wider than that of the base fabric; (3) cooling: spraying the lower surface of the outer surface of the single silicon adhesive film in step (2) with circulating water to rapidly cool it down; (4) winding: winding the asphalt blanket with the adjustable roller to obtain an asphalt blanket with a length of 5-10 m and a width of 1-2 m.
3. A non-slip asphalt carpet for pedestrian walkways according to claim 1, characterized in that: In S1, the volume ratio of the phenol to toluene is 1:6-7; the volume-mass ratio of the phenol to petroleum resin is 2-5:1; and the addition amount of the BF3O(C2H5)2 is 0.6% of the volume of the mixed liquid.
4. A non-slip asphalt carpet for pedestrian walkways according to claim 3, characterized in that: In S2, the mass fraction of the phenol-modified petroleum resin in the epichlorohydrin is 5%-6%; the addition amount of the tetrabutylammonium bromide is 1%-1.5% of the epichlorohydrin; and the addition amount of the 30% NaOH solution is 8% of the mixed liquid 2.
5. A non-slip asphalt carpet for pedestrian walkways according to claim 4, characterized in that: In S3, the mass ratio of the tetraethylenepentamine to butyl acrylate is 3-4:1; and the mass ratio of the tetraethylenepentamine to the modified petroleum resin is 1:10-15.
6. A non-slip asphalt carpet for pedestrian walkways according to claim 5, characterized in that: In S4, the material-liquid ratio of the ramie fiber to the tannic acid solution is 1:8-10; and in S5, the addition amount of the modified ramie fiber in the epoxy resin modified curing agent is 0.2%-0.3%.
7. A non-slip asphalt carpet for pedestrian walkways according to claim 6, characterized in that: The stabilizer is sublimed sulfur stabilizer.
8. A non-slip asphalt carpet for pedestrian walkways according to claim 7, characterized in that: The anti-skid granules are ceramic particles and diamond dust, the particle size of the ceramic particles being 1-2 mm, and the particle size of the diamond dust being 2-3 mm.
Citation Information
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