Novel road asphalt material and preparation method thereof

Abstract

The invention discloses a novel road asphalt material and a preparation method thereof, and the preparation method comprises the following steps: S1, mixing epoxy resin, an ultraviolet light absorber and a hindered amine light stabilizer according to a weight ratio of 1: 1: 1, and uniformly stirring to obtain a standby substance A; s2, mixing methylhexahydrophthalic anhydride, a toughening agent, an accelerant and a silane coupling agent according to a weight ratio of 1: 1: 1, and uniformly stirring to obtain a standby substance B; s3, mixing the standby substance A and the standby substance B according to the weight ratio of 1: 1, and uniformly stirring to obtain a weather-resistant agent; s4, 2-6 parts of a curing agent, 5-10 parts of an adhesive, 3-7 parts of a weather-resistant agent and 3-5 parts of a corrosion-resistant agent are mixed and stirred uniformly, and an asphalt modifier is prepared; and S5, taking 10-15 parts of matrix asphalt, adding the asphalt modifier, and uniformly stirring and mixing to obtain the novel road asphalt material. Compared with matrix asphalt, the modified asphalt prepared by the invention has the advantages that the corrosion resistance and the weather resistance are better, the use scene of the asphalt is expanded, and the practicability of the asphalt is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt modification, and in particular to a new type of road asphalt material and a preparation method thereof. Background Art

[0002] Asphalt is widely used in road paving, pavement repair and maintenance. Compared with cement concrete pavement, asphalt pavement has the advantages of no joints, comfortable driving, low vibration and low noise. However, asphalt pavement needs to be exposed to harsh environments such as high temperature or severe cold for many years after paving. The existing matrix asphalt materials have poor corrosion resistance and weather resistance, resulting in a short service life in harsh environments. Subsequently, staff will need to repave the asphalt pavement, increasing the cost of pavement maintenance. Summary of the invention

[0003] The invention provides a novel road asphalt material, which achieves the purpose of improving the weather resistance and corrosion resistance of base asphalt by adding an asphalt modifier into the base asphalt.

[0004] In order to achieve these purposes and other advantages according to the present invention, a method for preparing a novel road asphalt material is provided, comprising the following steps: The following raw materials are calculated by weight: S1. Mix epoxy resin, ultraviolet absorber and hindered amine light stabilizer in a weight ratio of 1:1:1, stir evenly, and obtain material A; S2, methyl hexahydrophthalic anhydride, toughening agent, accelerator, and silane coupling agent are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; S4, mixing 2-6 parts of curing agent, 5-10 parts of adhesive, 3-7 parts of weathering agent, and 3-5 parts of corrosion resistance agent, stirring evenly, to prepare an asphalt modifier; S5. Take 10-15 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0005] The toughening agent may be a polymer toughening agent, such as polyetheretherketone (PEEK) or polyurethane (PU); a rubber toughening agent, such as styrene-butadiene rubber (SBR) or chloroprene rubber (CR); or a modifier of polypropylene (PP) and polyethylene (PE), such as chlorinated polyethylene, ethylene-vinyl acetate copolymer, etc. The hindered amine light stabilizer can be a commercially available Tinuvin series or Chimassorb series, specifically Tinuvin 123 (bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid) or Chimassorb 2020 (C40 H 77 N9); The silane coupling agent may be KH-570, KH-560, KH-550 or the like.

[0006] Preferably, in the method for preparing the novel road asphalt material, the curing agent is at least one of an amine compound and a platinum compound.

[0007] Preferably, in the method for preparing the novel road asphalt material, the amine compound is at least one of methylamine, ethylenediamine, triethylamine, and tetramethylammonium chloride; and the platinum compound is at least one of potassium chloroplatinate, sodium platinate, and platinum tetrachloride.

[0008] Preferably, in the method for preparing the novel road asphalt material, the ultraviolet absorber is one of benzotriazole, oxybenzone and titanium dioxide.

[0009] Preferably, in the preparation method of the novel road asphalt material, the accelerator is one of a fatty amine accelerator, an acid anhydride accelerator and a polyetheramine accelerator. The fatty amine accelerator is DMP-30, EP-184, triethanolamine, etc., the acid anhydride accelerator is BDMA, CT-152x, DBU, etc.), and the polyetheramine accelerator is EP-184, 399, etc.

[0010] Preferably, in the method for preparing the novel road asphalt material, the method for preparing the adhesive comprises the following steps: The following raw materials are calculated by weight: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3. Add NaOH regulator to the reaction solution to adjust its pH value to 7-8; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The NaOH regulator can be a NaOH standard solution.

[0011] Preferably, in the method for preparing the novel road asphalt material, the method for preparing the corrosion-resistant agent comprises the following steps: The following raw materials are calculated by weight: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3. Cool to 45-50°C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane and 12 parts of isocyanate and mix well to obtain the corrosion inhibitor.

[0012] The present invention also provides a novel road asphalt material, which is prepared by the preparation method of the novel road asphalt material described in any of the above technical solutions.

[0013] The present invention has at least the following beneficial effects: 1. The present invention prepares an asphalt modifier by using an adhesive, a curing agent, a weathering agent and a corrosion resistant agent, and directly adds the asphalt modifier to a base asphalt to prepare a modified asphalt, i.e., a new type of road asphalt material. Compared with the traditional base asphalt, the modified asphalt prepared by the present invention has better corrosion resistance and weather resistance, which expands the application scenarios of asphalt and greatly improves the practicality of asphalt; 2. The preparation method of the present invention has simple and easy steps, is easy to control, has low requirements on equipment, and is easy to industrialize; and no volatile organic compounds are emitted during the preparation process, which is beneficial to environmental protection and the health of production personnel.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with specific embodiments so that those skilled in the art can implement the invention with reference to the description.

[0016] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0017] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Example 1 A method for preparing a novel road asphalt material comprises the following steps: The following raw materials are calculated by weight: Step 1: preparing weathering agent, corrosion resistant agent and adhesive at the same time; The specific preparation steps of the weathering agent include: S1. Mix epoxy resin, benzotriazole and bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid in a weight ratio of 1:1:1, and stir evenly to obtain a standby material A; S2, methyl hexahydrophthalic anhydride, polyetheretherketone, accelerator DMP-30, and silane coupling agent KH-570 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 45 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 1 part of methylamine, 1 part of ethylenediamine, 5 parts of adhesive, 3 parts of weathering agent, and 3 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 10 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0019] Example 2 S1. Mix epoxy resin, oxybenzone and C40H77N9 in a weight ratio of 1:1:1 and stir evenly to obtain a material A; S2, methyl hexahydrophthalic anhydride, polyurethane, accelerator BDMA, silane coupling agent KH-560 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7.5; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 48 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 4 parts of methylamine, 8 parts of adhesive, 5 parts of weathering agent and 4 parts of corrosion resistance agent, stir evenly to prepare an asphalt modifier; Step 3: Take 13 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0020] Example 3 S1. Mix epoxy resin, titanium dioxide, and bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid in a weight ratio of 1:1:1, and stir evenly to obtain a standby material A; S2, methyl hexahydrophthalic anhydride, styrene-butadiene rubber, accelerator EP-184, and silane coupling agent KH-550 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 8; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 50°C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 2 parts of methylamine, 2 parts of ethylenediamine, 2 parts of triethylamine, 10 parts of adhesive, 7 parts of weathering agent, and 5 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 15 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0021] Example 4 S1. Mix epoxy resin, benzotriazole and C40H77N9 in a weight ratio of 1:1:1 and stir evenly to obtain a preparation A; S2, methyl hexahydrophthalic anhydride, chloroprene rubber, triethanolamine, and silane coupling agent KH-570 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 46 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 2 parts of methylamine, 1 part of ethylenediamine, 1 part of triethylamine, 1 part of tetramethylammonium chloride, 6 parts of adhesive, 4 parts of weathering agent, and 3 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 10 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0022] Example 5 S1. Mix epoxy resin, oxybenzone, and bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid in a weight ratio of 1:1:1, and stir evenly to obtain a standby material A; S2, methyl hexahydrophthalic anhydride, chlorinated polyethylene, accelerator CT-152x, and silane coupling agent KH-560 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7.5; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 47 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 3 parts of potassium chloroplatinate, 7 parts of adhesive, 6 parts of weathering agent and 4 parts of corrosion resistance agent, stir evenly to prepare an asphalt modifier; Step 3: Take 12 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0023] Example 6 S1. Mix epoxy resin, titanium dioxide and C40H77N9 in a weight ratio of 1:1:1 and stir evenly to obtain a material A; S2, methyl hexahydrophthalic anhydride, ethylene-vinyl acetate copolymer, accelerator 399, and silane coupling agent KH-550 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 8; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 50°C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 1 part of potassium chloroplatinate, 1 part of sodium platinate, 9 parts of adhesive, 7 parts of weathering agent, and 5 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 14 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0024] Example 7 A method for preparing a novel road asphalt material comprises the following steps: The following raw materials are calculated by weight: Step 1: preparing weathering agent, corrosion resistant agent and adhesive at the same time; The specific preparation steps of the weathering agent include: S1. Mix epoxy resin, benzotriazole and bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid in a weight ratio of 1:1:1, and stir evenly to obtain a standby material A; S2, methyl hexahydrophthalic anhydride, polyetheretherketone, accelerator EP-184, and silane coupling agent KH-570 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 45 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 2 parts of potassium chloroplatinate, 1 part of sodium platinate, 1 part of platinum tetrachloride, 5 parts of adhesive, 3 parts of weathering agent, and 3 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 10 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0025] Example 8 A method for preparing a novel road asphalt material comprises the following steps: The following raw materials are calculated by weight: Step 1: preparing weathering agent, corrosion resistant agent and adhesive at the same time; The specific preparation steps of the weathering agent include: S1. Mix epoxy resin, oxybenzone and C40H77N9 in a weight ratio of 1:1:1 and stir evenly to obtain a material A; S2, methyl hexahydrophthalic anhydride, polyurethane, accelerator DBU, and silane coupling agent KH-560 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 7.5; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 48 ° C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 3 parts of methylamine, 2 parts of potassium chloroplatinate, 8 parts of adhesive, 5 parts of weathering agent, and 4 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 13 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0026] Example 9 A method for preparing a novel road asphalt material comprises the following steps: The following raw materials are calculated by weight: Step 1: preparing weathering agent, corrosion resistant agent and adhesive at the same time; The specific preparation steps of the weathering agent include: S1. Mix epoxy resin, titanium dioxide, and bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacic acid in a weight ratio of 1:1:1, and stir evenly to obtain a standby material A; S2, methyl hexahydrophthalic anhydride, styrene-butadiene rubber, accelerator DMP-30, and silane coupling agent KH-550 are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; The specific preparation steps of the adhesive include: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3, adding NaOH regulator to the reaction solution to adjust its pH value to 8; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours, then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive. The specific preparation steps of the corrosion resistant agent include: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3, cool to 50°C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane, and 12 parts of isocyanate and mix well to obtain a corrosion-resistant agent; Step 2: Mix 2 parts of ethylenediamine, 2 parts of triethylamine, 1 part of sodium platinum, 1 part of platinum tetrachloride, 10 parts of adhesive, 7 parts of weathering agent, and 5 parts of corrosion inhibitor, stir evenly, and prepare an asphalt modifier; Step 3: Take 15 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

[0027] Comparative Example 1 Same as Example 2, except that the asphalt modifier does not contain a curing agent (methylamine), a weathering agent, or a corrosion resistant agent.

[0028] Comparative Example 2 Same as Example 2, except that: the asphalt modifier does not contain adhesive, weathering agent, or corrosion resistant agent.

[0029] Comparative Example 3 Same as Example 2, except that the asphalt modifier does not contain a curing agent (methylamine), an adhesive, or a weathering agent.

[0030] Comparative Example 4 Same as Example 2, except that the asphalt modifier does not contain a curing agent (methylamine), an adhesive, or a corrosion inhibitor.

[0031] Comparative Example 5 Same as Example 2, except that: the asphalt modifier does not contain weathering agent or corrosion resistant agent.

[0032] Comparative Example 6 Same as Example 2, except that: the asphalt modifier does not contain a curing agent (methylamine) or a weathering agent.

[0033] Comparative Example 7 Same as Example 2, except that: the asphalt modifier does not contain a curing agent (methylamine) or a corrosion inhibitor.

[0034] Comparative Example 8 Same as Example 2, except that: the asphalt modifier contains no adhesive or weathering agent.

[0035] Comparative Example 9 Same as Example 2, except that: the asphalt modifier contains no adhesive or corrosion inhibitor.

[0036] Comparative Example 10 Same as Example 2, except that: the asphalt modifier does not contain a curing agent (methylamine) or an adhesive.

[0037] Comparative Example 11 Same as Example 2, except that: there is no weathering agent in the asphalt modifier.

[0038] Comparative Example 12 Same as Example 2, except that: there is no corrosion inhibitor in the asphalt modifier.

[0039] Comparative Example 13 Same as Example 2, except that: no curing agent (methylamine) is included in the asphalt modifier.

[0040] Comparative Example 14 Same as Example 2, except that: there is no adhesive in the asphalt modifier.

[0041] Comparative Example 15 Same as Example 2, except that the adhesive in the asphalt modifier is emulsion styrene-butadiene rubber.

[0042] Comparative Example 16 Same as Example 2, except that the curing agent (methylamine) in the asphalt modifier is replaced by vinyl trimethoxy silane (rubber modifier).

[0043] Comparative Example 17 Same as Example 2, except that the corrosion-resistant agent in the asphalt modifier is polypropylene.

[0044] Comparative Example 18 Same as Example 2, except that the weathering agent in the asphalt modifier is polyurethane.

[0045] Comparative Example 19 The same as Example 2, except that: Steps 2 and 3 are combined, methylamine, adhesive, weathering agent, corrosion inhibitor, and base asphalt are directly mixed and stirred evenly at one time to obtain a new type of road asphalt material.

[0046] Comparative Example 20 Same as Example 2, except that: Step 2, adding a weathering agent to the base asphalt, stirring and mixing evenly, then adding methylamine, an adhesive, and a corrosion inhibitor, stirring and mixing evenly, to obtain a new type of road asphalt material.

[0047] Comparative Example 21 The product is base asphalt.

[0048] The weather resistance and corrosion resistance of the new road asphalt materials prepared in the above embodiments and the asphalt materials prepared in the comparative examples were tested. The specific test method is as follows: the obtained asphalt materials are prepared into a number of 200mm*200mm*50±0.5mm standard test pieces, each standard test piece is taken and placed in a weather resistance test box, and rainwater is evenly sprayed on the test piece through a rain spray device in the test box until the rainwater just completely covers the surface of the test piece, and the test piece is kept for 0.1h, and then the test piece is heated with 120℃ hot air for 1h, and then the test piece is cooled and frozen with -5℃ cold air for 1h, and then the test piece is cooled with a strength of 200w / m 2 The specimens were irradiated with ultraviolet rays for 1 hour, and then left to stand for 20.9 hours for one day. The above experiment was repeated every day. After the experiment was completed for 10 days, the cracks on the surface of each specimen were observed, and the weather resistance of the specimens was evaluated. The evaluation results were recorded in Table 2. At the same time, each standard specimen was taken and placed in a salt spray box. Salt water was evenly sprayed on the specimens so that the salt water just completely covered the surface of the specimens and then left to stand for one day. The above experiment was repeated every day. After the experiment was completed for 10 days, the cracks on the surface of each specimen were observed, and the corrosion resistance of the specimens was evaluated. The evaluation results were recorded in Table 2. The evaluation standards are shown in Table 1. Before and after the weathering test, according to the test methods of "JTJ 0522000 T0604" and "JTJ 0522000 T0605", the penetration and softening point of the new road asphalt materials prepared in the above embodiments and the asphalt materials prepared in the comparative examples were tested, and the test results are recorded in Table 1.

[0049] From the analysis of the test evaluation results in Table 2, by comparing the test evaluation results of Example 2 with those of Comparative Examples 1 to 18 and 21, it can be known that only when the asphalt modifier prepared by mixing the four materials of the adhesive, curing agent, weathering agent and corrosion resist of the present invention is added to the base asphalt, can the weather resistance and corrosion resistance of the base asphalt be significantly improved at the same time; by comparing the test evaluation results of Example 2 with those of Comparative Examples 19 and 20, it can be known that only when the asphalt modifier is prepared by mixing the curing agent, adhesive, weathering agent and corrosion resist through the preparation steps of the present invention, and then mixed with the base asphalt, can the weather resistance and corrosion resistance of the base asphalt be significantly improved at the same time; by analyzing the test results of the penetration and softening point of each product before and after the weather resistance experiment, the new road asphalt material prepared by the present invention has more stable performance and is less affected by the environment; the improvement in the performance of the new road asphalt material of the present invention expands the use scenarios of asphalt and greatly improves the practicability of asphalt.

[0050] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0051] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A method for preparing a novel road asphalt material, characterized in that: The following steps are involved: The following raw materials are calculated by weight: S1. Mix epoxy resin, ultraviolet absorber and hindered amine light stabilizer in a weight ratio of 1:1:1, stir evenly, and obtain material A; S2, methyl hexahydrophthalic anhydride, toughening agent, accelerator, and silane coupling agent are mixed in a weight ratio of 1:1:1, and stirred evenly to obtain a standby material B; S3, mixing the spare material A and the spare material B in a weight ratio of 1:1, stirring evenly, to obtain a weathering agent; S4, mixing 2-6 parts of curing agent, 5-10 parts of adhesive, 3-7 parts of weathering agent, and 3-5 parts of corrosion resistance agent, stirring evenly, to prepare an asphalt modifier; S5. Take 10-15 parts of base asphalt, add asphalt modifier, stir and mix evenly to obtain a new type of road asphalt material.

2. The method for preparing the novel road asphalt material according to claim 1, characterized in that: The curing agent is at least one of an amine compound and a platinum compound.

3. The method for preparing the novel road asphalt material according to claim 2, characterized in that: The amine compound is at least one of methylamine, ethylenediamine, triethylamine and tetramethylammonium chloride; the platinum compound is at least one of potassium chloroplatinate, sodium platinate and platinum tetrachloride.

4. The method for preparing the novel road asphalt material according to claim 1, characterized in that: The ultraviolet absorber is one of benzotriazole, oxybenzone and titanium dioxide.

5. The method for preparing the novel road asphalt material according to claim 1, characterized in that: The accelerator is one of a fatty amine accelerator, an acid anhydride accelerator and a polyether amine accelerator.

6. The method for preparing the novel road asphalt material according to claim 1, characterized in that: The preparation method of the adhesive comprises the following steps: The following raw materials are calculated by weight: A1. Stir and mix 1 part of deionized water, 1 part of glycerol and 1 part of isopropanol, raise the temperature to 50°C, and continue stirring for 5 minutes to obtain a mixed solution; A2, add 1 part of zirconium oxychloride to the mixed solution and stir evenly, then add 1 part of lactic acid, 1 part of triethanolamine, and 1 part of N,N'-methylenebisacrylamide in sequence, stir and mix for 15 minutes to obtain a reaction solution; A3. Add NaOH regulator to the reaction solution to adjust its pH value to 7-8; A4. Heat the reaction solution to 80°C and keep it warm for 4 hours. Then add 1 part of KCl and continue the reaction for 1.5 hours to obtain the adhesive.

7. The method for preparing the novel road asphalt material according to claim 1, characterized in that: The preparation method of the corrosion resistant agent comprises the following steps: The following raw materials are calculated by weight: B1. Add 58 parts of waterborne epoxy resin, 10 parts of acrylic resin, 30 parts of isocyanate and 21 parts of polyisobutylene into a reaction kettle, and stir and mix at 150° C. for 2 hours until the mixture is uniform and has no stratification and a uniform color; B2, cool to 85 ° C, add 10 parts of polyether-modified silicone, 10 parts of polysiloxane, 10 parts of ammonium polyphosphate and 10 parts of castor oil polyglycidyl ether, and continue stirring and mixing for 2 hours; B3. Cool to 45-50°C, add 12 parts of isopropylated triphenyl phosphate, 6 parts of polyurethane and 12 parts of isocyanate and mix well to obtain the corrosion inhibitor.

8. A new type of road asphalt material, characterized in that: The novel road asphalt material is prepared by the preparation method of any one of claims 1 to 7.

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