CN110724482A - Stretch-proofing composite road sealant - Google Patents
Stretch-proofing composite road sealant Download PDFInfo
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- CN110724482A CN110724482A CN201910997661.9A CN201910997661A CN110724482A CN 110724482 A CN110724482 A CN 110724482A CN 201910997661 A CN201910997661 A CN 201910997661A CN 110724482 A CN110724482 A CN 110724482A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses an anti-tensile composite road sealant, and belongs to the technical field of building materials. The invention is provided; pulverizing jute fiber, sieving to obtain refined jute fiber, mixing refined jute fiber, carbomer 941, secondary sedimentation tank sludge, sucrose and water, fermenting, adding dropwise ammonia water to adjust pH, filtering, freezing, pulverizing, sieving, and carbonizing to obtain modified fiber; stirring and mixing the phenolic resin and the diluent, and then adding the curing agent, the modified filler, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate, stirring and mixing to obtain the anti-tensile composite road sealant. The stretch-resistant composite road sealant provided by the invention has excellent mechanical properties.
Description
Technical Field
The invention discloses an anti-tensile composite road sealant, and belongs to the technical field of building materials.
Background
In recent years, with the rapid development of economy, the development of highway construction industry is also a sudden leap, and the road surface in use is affected by loads and external environments, so that early diseases such as ruts, cracks and the like appear to different degrees. The appearance of cracks destroys the continuity, integrity and beauty of the pavement. More importantly, if the cracks are not closed in time, rainwater in summer and snow in winter can infiltrate into the road surface and the roadbed after melting, the cracks can gradually increase under the increasingly large traffic load of the trunk line and the highway, the road surface can be seriously damaged in a large area after the cracks continue to develop, the driving safety is affected, and the maintenance cost is greatly increased.
The crack pouring material usually selected in the prior pavement crack treatment is low-consistency asphalt or emulsified asphalt, the materials can have the phenomena of low-temperature embrittlement, high-temperature flowing and the like when in use, the sealing effect is poor, and the crack pouring of the pavement layer needs to be carried out again due to expansion and shrinkage in less than one year. Therefore, the conventional asphalt crack pouring process for treating pavement cracks is limited in use due to the influence of materials and weather, and the workload and the material cost of pavement maintenance are increased due to the problem. The sealant crack pouring process overcomes the defects of the traditional asphalt material in the aspect of material performance. The sealant crack pouring process is used for replacing the traditional asphalt crack pouring process to treat the cracks of the asphalt pavement, and is a great improvement of the existing pavement crack treatment technology.
Low elastic modulus and high displacement capacity are required for preventing debonding or cracking so as to reduce internal stress; and because the pavement is exposed to wind, sunshine and rain for a long time, and is eroded by snow and rain, the low temperature can reach minus 40 ℃ in winter, and the high temperature can reach 70-80 ℃ in summer, so that the pavement is required to have excellent ultraviolet resistance, weather resistance and high and low temperature resistance to effectively prevent colloid aging and improve the service performance of the pavement. Therefore, the tensile composite road sealant should have the following performance characteristics:
(1) good adhesion;
(2) a low modulus;
(3) high displacement capability;
(4) ultraviolet resistance and weather aging resistance;
(5) high and low temperature resistance;
(6) good workability.
The commonly used road joint grouting materials comprise asphalt, modified asphalt, polysulfide sealant, polyurethane sealant, silicone sealant and the like. Asphalt is used as a road sealing material, has a poor sealing effect, is only suitable for occasions with small seam changes, is gradually replaced by modified asphalt at present, but has low displacement capability and low ultraviolet aging resistance, but is low in price, so that the asphalt is widely used. The traditional road sealant at present has the problem that the mechanical property of the system cannot be further improved, so research is needed.
Disclosure of Invention
The invention mainly solves the technical problems that: aiming at the problem that the mechanical property of the traditional road sealant system can not be further improved, the anti-tensile composite road sealant is provided.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the anti-tensile composite road sealant is prepared from the following raw materials in parts by weight:
30-40 parts of phenolic resin
30-40 parts of diluent
3-5 parts of curing agent
8-10 parts of modified filler
2-3 parts of silane coupling agent
3-5 parts of phospholipid
5-8 parts of modified fiber
2-3 parts of petroleum resin
2-3 parts of isocyanate
The preparation process of the stretch-resistant composite road sealant comprises the following steps: weighing the raw materials according to the composition of the raw materials, stirring and mixing the phenolic resin and the diluent, then adding the curing agent, the modified filler, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate, stirring and mixing to obtain the stretch-resistant composite road sealant.
The phenolic resin is any one of phenolic resin 2123, phenolic resin 2127 or phenolic resin 2130.
The diluent is any one of xylene, ethyl acetate, acetone, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether.
The curing agent is any one of m-phenylenediamine, vinyl triamine or ethylenediamine.
The preparation process of the modified filler comprises the following steps: mixing glass beads and hydrofluoric acid according to a mass ratio of 1: 20-1: 30, soaking, filtering and washing to obtain pretreated glass microspheres, mixing and fermenting 20-30 parts of pretreated glass microspheres, 5-8 parts of wheat starch, 0.02-0.03 part of yeast and 15-20 parts of water according to parts by weight, filtering, drying, carbonizing, crushing and sieving to obtain the modified filler.
The silane coupling agent is any one of a silane coupling agent KH-550, a silane coupling agent KH-560 or a silane coupling agent KH-570.
The phospholipid is any one of soybean phospholipid, milk phospholipid or peanut phospholipid.
The preparation process of the modified fiber comprises the following steps: crushing jute fibers, sieving to obtain refined jute fibers, mixing 20-30 parts of refined jute fibers, 2-3 parts of carbomer 941, 1-2 parts of secondary sedimentation tank sludge, 0.2-0.3 part of cane sugar and 20-30 parts of water according to parts by weight, fermenting, then dropwise adding ammonia water to adjust the pH value to 8.5-8.7, filtering, freezing, crushing, sieving and carbonizing to obtain the modified fibers.
The petroleum resin is any one of C9 petroleum resin or C6 petroleum resin.
The isocyanate is any one of toluene diisocyanate, diphenylmethane diisocyanate or trimethylhexane diisocyanate.
The invention has the beneficial effects that:
(1) the invention adds modified fiber, in the preparation process, firstly, refined jute fiber, carbomer 941, secondary sedimentation tank sludge, cane sugar and water are mixed and fermented, organic matters in the refined jute fiber are decomposed by utilizing enzyme generated by microorganism, so that the interface bonding strength between fibers is reduced, simultaneously, the permeability of the fibers is improved, carbomer in a system can permeate into the fibers, then ammonia water is dripped to ionize carboxyl of carbomer molecular chains in the fibers, the space between the fibers is further widened due to mutual repulsion between the same charges, so that more water can permeate into the fibers, then a large amount of fiber whiskers are formed between the fibers by freezing, then the fibers are split into micro-nano fiber whiskers by ball milling, and simultaneously, the produced micro-nano fiber whiskers have the same charges to mutually repel each other, the generated micro-nano fiber whiskers can be well dispersed in a system, the fiber whisker agglomeration is effectively avoided, the mechanical property of the system is further improved, and then tar is generated in the carbonization process and can improve the interface bonding property between the modified fiber and the matrix resin, so that the mechanical property of the system is further improved;
(2) according to the invention, by adding the modified filler, in the preparation process, firstly, the glass beads are mixed with hydrofluoric acid, the hydrofluoric acid is reacted with silicon dioxide on the surfaces of the glass beads, so that the roughness of the surfaces of the glass beads is improved, then, the pretreated glass beads, wheat starch, yeast and water are mixed and fermented, so that microorganisms are propagated on the surfaces of the glass beads, organic matters are adhered to the surfaces of the system, then, the organic matters on the surfaces of the glass beads are carbonized under a high-temperature condition, and meanwhile, a large amount of tar is generated in the carbonization process, so that the interface bonding strength between the modified filler and matrix resin can be improved by the tar, and the mechanical property of the system is further improved.
Detailed Description
Mixing glass beads and 30-35% by mass of hydrofluoric acid according to a mass ratio of 1: 20-1: 30, placing the mixture in a reaction kettle, soaking the mixture for 40-60 min at the rotating speed of 300-500 r/min to obtain a soaking solution, filtering the soaking solution to obtain No. 1 filter residue, washing the mixture with ammonia water with the mass fraction of 20-30% until the washing solution is neutral to obtain pretreated glass beads, mixing and fermenting 20-30 parts of pretreated glass beads, 5-8 parts of wheat starch, 0.02-0.03 part of yeast and 15-20 parts of water in a No. 1 fermentation kettle at the temperature of 30-35 ℃ and the rotating speed of 100-200 r/min for 3-5 days to obtain a fermentation mixed solution, filtering the fermentation mixed solution to obtain No. 2 filter residue, placing the No. 2 filter residue in a drying oven, drying the filter residue to constant weight at the temperature of 105-110 ℃ to obtain dried No. 2 filter residue, placing the dried No. 2 filter residue in a carbonization furnace, and charging nitrogen into the furnace at the speed of 60-90 mL/min, carbonizing for 2-3 hours at the temperature of 650-750 ℃ to obtain a carbonized material, then placing the carbonized material into a crusher to be crushed, and sieving the crushed carbonized material through a 100-mesh sieve to obtain the modified filler; placing jute fiber in a grinder for grinding, sieving by a sieve of 80 meshes to obtain refined jute fiber, placing 20-30 parts of refined jute fiber, 2-3 parts of carbomer 941, 1-2 parts of secondary sedimentation tank sludge, 0.2-0.3 part of cane sugar and 20-30 parts of water in a No. 2 fermentation kettle according to parts by weight, mixing and fermenting for 3-5 days at the temperature of 30-35 ℃ and the rotating speed of 100-200 r/min, then dropwise adding ammonia water with the mass fraction of 20-30% into the fermentation kettle to adjust the pH to 8.5-8.7 to obtain mixed slurry, filtering the mixed slurry to obtain a filter cake, placing the filter cake in liquid nitrogen for freezing to obtain a frozen block, then placing the frozen block in a ball mill for ball milling and grinding, sieving by a sieve of 330 meshes to obtain ball milling material, then placing the ball milling material in a carbonization furnace, introducing argon into the furnace at the speed of 60-90 mL/min, and under the temperature of 850-950 ℃, carbonizing for 2-3 h to obtain modified fiber; according to the weight parts, 30-40 parts of phenolic resin, 30-40 parts of diluent, 3-5 parts of curing agent, 8-10 parts of modified filler, 2-3 parts of silane coupling agent, 3-5 parts of phospholipid, 5-8 parts of modified fiber, 2-3 parts of petroleum resin and 2-3 parts of isocyanate are sequentially taken, the phenolic resin and the diluent are placed in a mixer, stirred and mixed for 40-60 min under the condition that the rotating speed is 300-500 r/min, then the curing agent, the modified filler, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate are placed in the mixer, and stirred and mixed for 40-60 min under the condition that the rotating speed is 300-500 r/min, so that the stretch-resistant composite road sealant is obtained. The phenolic resin is any one of phenolic resin 2123, phenolic resin 2127 or phenolic resin 2130. The diluent is any one of xylene, ethyl acetate, acetone, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether. The curing agent is any one of m-phenylenediamine, vinyl triamine or ethylenediamine. The silane coupling agent is any one of a silane coupling agent KH-550, a silane coupling agent KH-560 or a silane coupling agent KH-570. The phospholipid is any one of soybean phospholipid, milk phospholipid or peanut phospholipid. The petroleum resin is any one of C9 petroleum resin or C6 petroleum resin. The isocyanate is any one of toluene diisocyanate, diphenylmethane diisocyanate or trimethylhexane diisocyanate.
Mixing glass beads with 35% hydrofluoric acid according to a mass ratio of 1: 30 in a reaction kettle, soaking for 60min at the rotation speed of 500r/min to obtain a soaking solution, filtering the soaking solution to obtain No. 1 filter residue, washing with 30% ammonia water until the washing solution is neutral to obtain pretreated glass beads, placing 30 parts of pretreated glass beads, 8 parts of wheat starch, 0.03 part of yeast and 20 parts of water in a No. 1 fermentation kettle, mixing and fermenting for 5 days at the temperature of 35 ℃ and the rotation speed of 200r/min to obtain a fermentation mixed solution, filtering the fermentation mixed solution to obtain No. 2 filter residue, placing the No. 2 filter residue in a drying oven, drying to constant weight at the temperature of 110 ℃ to obtain dry No. 2 filter residue, placing the dry No. 2 filter residue in a carbonization furnace, charging nitrogen into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 750 ℃, obtaining a carbonized material, then placing the carbonized material in a crusher to be crushed, and sieving the crushed carbonized material by a sieve of 100 meshes to obtain the modified filler; placing 30 parts of refined jute fiber, 3 parts of carbomer 941, 2 parts of secondary sedimentation tank sludge, 0.3 part of sucrose and 30 parts of water in a No. 2 fermentation kettle according to parts by weight, placing the materials in the fermentation kettle at the temperature of 35 ℃ and the rotating speed of 200r/min, performing mixed fermentation for 5 days, then dropwise adding 30% by mass of ammonia water into the fermentation kettle to adjust the pH to 8.7 to obtain mixed slurry, filtering the mixed slurry to obtain a filter cake, placing the filter cake in liquid nitrogen for freezing to obtain a frozen block, placing the frozen block in a ball mill for ball milling and crushing, passing through a 330-mesh sieve to obtain a ball milling material, placing the ball milling material in a carbonization furnace, introducing argon into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 950 ℃ to obtain modified fiber; according to the weight parts, 40 parts of phenolic resin, 40 parts of diluent, 5 parts of curing agent, 10 parts of modified filler, 3 parts of silane coupling agent, 5 parts of phospholipid, 8 parts of modified fiber, 3 parts of petroleum resin and 3 parts of isocyanate are sequentially taken, the phenolic resin and the diluent are placed in a mixer, stirred and mixed for 40-60 min under the condition that the rotating speed is 500r/min, then the curing agent, the modified filler, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate are placed in the mixer, and stirred and mixed for 40-60 min under the condition that the rotating speed is 500r/min, and the stretch-resistant composite road sealant is obtained. The phenolic resin is phenolic resin 2123. The diluent is xylene. The curing agent is m-phenylenediamine. The silane coupling agent is a silane coupling agent KH-550. The phospholipid is soybean phospholipid. The petroleum resin is C9 petroleum resin. The isocyanate is toluene diisocyanate.
Placing 30 parts of refined jute fiber, 3 parts of carbomer 941, 2 parts of secondary sedimentation tank sludge, 0.3 part of sucrose and 30 parts of water in a No. 2 fermentation kettle according to parts by weight, placing the materials in the fermentation kettle at the temperature of 35 ℃ and the rotating speed of 200r/min, performing mixed fermentation for 5 days, then dropwise adding 30% by mass of ammonia water into the fermentation kettle to adjust the pH to 8.7 to obtain mixed slurry, filtering the mixed slurry to obtain a filter cake, placing the filter cake in liquid nitrogen for freezing to obtain a frozen block, placing the frozen block in a ball mill for ball milling and crushing, passing through a 330-mesh sieve to obtain a ball milling material, placing the ball milling material in a carbonization furnace, introducing argon into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 950 ℃ to obtain modified fiber; according to the weight parts, 40 parts of phenolic resin, 40 parts of diluent, 5 parts of curing agent, 3 parts of silane coupling agent, 5 parts of phospholipid, 8 parts of modified fiber, 3 parts of petroleum resin and 3 parts of isocyanate are sequentially taken, the phenolic resin and the diluent are placed in a mixer, stirred and mixed for 40-60 min at the rotating speed of 500r/min, then the curing agent, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate are placed in the mixer, and stirred and mixed for 40-60 min at the rotating speed of 500r/min, so that the stretch-resistant composite road sealant is obtained. The phenolic resin is phenolic resin 2123. The diluent is xylene. The curing agent is m-phenylenediamine. The silane coupling agent is a silane coupling agent KH-550. The phospholipid is soybean phospholipid. The petroleum resin is C9 petroleum resin. The isocyanate is toluene diisocyanate.
Mixing glass beads with 35% hydrofluoric acid according to a mass ratio of 1: 30 in a reaction kettle, soaking for 60min at the rotation speed of 500r/min to obtain a soaking solution, filtering the soaking solution to obtain No. 1 filter residue, washing with 30% ammonia water until the washing solution is neutral to obtain pretreated glass beads, placing 30 parts of pretreated glass beads, 8 parts of wheat starch, 0.03 part of yeast and 20 parts of water in a No. 1 fermentation kettle, mixing and fermenting for 5 days at the temperature of 35 ℃ and the rotation speed of 200r/min to obtain a fermentation mixed solution, filtering the fermentation mixed solution to obtain No. 2 filter residue, placing the No. 2 filter residue in a drying oven, drying to constant weight at the temperature of 110 ℃ to obtain dry No. 2 filter residue, placing the dry No. 2 filter residue in a carbonization furnace, charging nitrogen into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 750 ℃, obtaining a carbonized material, then placing the carbonized material in a crusher to be crushed, and sieving the crushed carbonized material by a sieve of 100 meshes to obtain the modified filler; placing 30 parts of refined jute fiber, 3 parts of carbomer 941, 2 parts of secondary sedimentation tank sludge, 0.3 part of sucrose and 30 parts of water in a No. 2 fermentation kettle according to parts by weight, placing the materials in the fermentation kettle at the temperature of 35 ℃ and the rotating speed of 200r/min, performing mixed fermentation for 5 days, then dropwise adding 30% by mass of ammonia water into the fermentation kettle to adjust the pH to 8.7 to obtain mixed slurry, filtering the mixed slurry to obtain a filter cake, placing the filter cake in liquid nitrogen for freezing to obtain a frozen block, placing the frozen block in a ball mill for ball milling and crushing, passing through a 330-mesh sieve to obtain a ball milling material, placing the ball milling material in a carbonization furnace, introducing argon into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 950 ℃ to obtain modified fiber; according to the weight parts, 40 parts of phenolic resin, 40 parts of diluent, 5 parts of curing agent, 10 parts of modified filler, 3 parts of silane coupling agent, 8 parts of modified fiber, 3 parts of petroleum resin and 3 parts of isocyanate are sequentially taken, the phenolic resin and the diluent are placed in a mixer, stirred and mixed for 40-60 min under the condition that the rotating speed is 500r/min, then the curing agent, the modified filler, the silane coupling agent, the modified fiber, the petroleum resin and the isocyanate are placed in the mixer, and stirred and mixed for 40-60 min under the condition that the rotating speed is 500r/min, and the stretch-resistant composite sealant road is obtained. The phenolic resin is phenolic resin 2123. The diluent is xylene. The curing agent is m-phenylenediamine. The silane coupling agent is a silane coupling agent KH-550. The petroleum resin is C9 petroleum resin. The isocyanate is toluene diisocyanate.
Mixing glass beads with 35% hydrofluoric acid according to a mass ratio of 1: 30 in a reaction kettle, soaking for 60min at the rotation speed of 500r/min to obtain a soaking solution, filtering the soaking solution to obtain No. 1 filter residue, washing with 30% ammonia water until the washing solution is neutral to obtain pretreated glass beads, placing 30 parts of pretreated glass beads, 8 parts of wheat starch, 0.03 part of yeast and 20 parts of water in a No. 1 fermentation kettle, mixing and fermenting for 5 days at the temperature of 35 ℃ and the rotation speed of 200r/min to obtain a fermentation mixed solution, filtering the fermentation mixed solution to obtain No. 2 filter residue, placing the No. 2 filter residue in a drying oven, drying to constant weight at the temperature of 110 ℃ to obtain dry No. 2 filter residue, placing the dry No. 2 filter residue in a carbonization furnace, charging nitrogen into the furnace at the speed of 90mL/min, and carbonizing for 3 hours at the temperature of 750 ℃, obtaining a carbonized material, then placing the carbonized material in a crusher to be crushed, and sieving the crushed carbonized material by a sieve of 100 meshes to obtain the modified filler; according to the weight parts, 40 parts of phenolic resin, 40 parts of diluent, 5 parts of curing agent, 10 parts of modified filler, 3 parts of silane coupling agent, 5 parts of phospholipid, 3 parts of petroleum resin and 3 parts of isocyanate are sequentially taken, the phenolic resin and the diluent are placed in a mixer, stirred and mixed for 40-60 min at the rotating speed of 500r/min, then the curing agent, the modified filler, the silane coupling agent, the phospholipid, the petroleum resin and the isocyanate are placed in the mixer, and stirred and mixed for 40-60 min at the rotating speed of 500r/min, so that the stretch-resistant composite road sealant is obtained. The phenolic resin is phenolic resin 2123. The diluent is xylene. The curing agent is m-phenylenediamine. The silane coupling agent is a silane coupling agent KH-550. The phospholipid is soybean phospholipid. The petroleum resin is C9 petroleum resin. The isocyanate is toluene diisocyanate.
The tensile composite road sealant obtained in the examples 1 to 4 is subjected to performance detection, and the specific detection method is as follows:
compressive strength: according to the GB/T2567 standard, a universal tester is adopted for determination (the test piece is molded and maintained in an environment of 23 +/-2 ℃, and the maintenance is carried out for 7 d);
bending strength: according to the GB50728 standard, a universal tester is adopted for determination (the test piece is molded and maintained in an environment of 23 +/-2 ℃, and the maintenance is carried out for 7 d);
tensile shear strength: according to the GB/T7124 standard, a universal tester is used for determination (test piece forming and maintenance are carried out in an environment of 23 +/-2 ℃, maintenance is carried out for 7d, and a base material is steel).
Specific detection results are shown in table 1:
table 1: performance test meter
| Detecting content | Example 1 | Example 2 | Example 3 | Example 4 |
| Compressive strength/MPa | 40.53 | 37.63 | 35.12 | 35.75 |
| Bending strength/MPa | 6.84 | 5.22 | 5.13 | 5.01 |
| Tensile shear strength/MPa | 116 | 87 | 66 | 73 |
The detection results in the table 1 show that the stretch-resistant composite road sealant obtained by the invention has excellent mechanical properties.
Claims (10)
1. The utility model provides a tensile compound road sealant which characterized in that: the composite material is prepared from the following raw materials in parts by weight:
30-40 parts of phenolic resin
30-40 parts of diluent
3-5 parts of curing agent
8-10 parts of modified filler
2-3 parts of silane coupling agent
3-5 parts of phospholipid
5-8 parts of modified fiber
2-3 parts of petroleum resin
2-3 parts of isocyanate
The preparation process of the stretch-resistant composite road sealant comprises the following steps: weighing the raw materials according to the composition of the raw materials, stirring and mixing the phenolic resin and the diluent, then adding the curing agent, the modified filler, the silane coupling agent, the phospholipid, the modified fiber, the petroleum resin and the isocyanate, stirring and mixing to obtain the stretch-resistant composite road sealant.
2. The stretch resistant composite road sealant as claimed in claim 1, wherein: the phenolic resin is any one of phenolic resin 2123, phenolic resin 2127 or phenolic resin 2130.
3. The stretch resistant composite road sealant as claimed in claim 1, wherein: the diluent is any one of xylene, ethyl acetate, acetone, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether.
4. The stretch resistant composite road sealant as claimed in claim 1, wherein: the curing agent is any one of m-phenylenediamine, vinyl triamine or ethylenediamine.
5. The stretch resistant composite road sealant as claimed in claim 1, wherein: the preparation process of the modified filler comprises the following steps: mixing glass beads and hydrofluoric acid according to a mass ratio of 1: 20-1: 30, soaking, filtering and washing to obtain pretreated glass microspheres, mixing and fermenting 20-30 parts of pretreated glass microspheres, 5-8 parts of wheat starch, 0.02-0.03 part of yeast and 15-20 parts of water according to parts by weight, filtering, drying, carbonizing, crushing and sieving to obtain the modified filler.
6. The stretch resistant composite road sealant as claimed in claim 1, wherein: the silane coupling agent is any one of a silane coupling agent KH-550, a silane coupling agent KH-560 or a silane coupling agent KH-570.
7. The stretch resistant composite road sealant as claimed in claim 1, wherein: the phospholipid is any one of soybean phospholipid, milk phospholipid or peanut phospholipid.
8. The stretch resistant composite road sealant as claimed in claim 1, wherein: the preparation process of the modified fiber comprises the following steps: crushing jute fibers, sieving to obtain refined jute fibers, mixing 20-30 parts of refined jute fibers, 2-3 parts of carbomer 941, 1-2 parts of secondary sedimentation tank sludge, 0.2-0.3 part of cane sugar and 20-30 parts of water according to parts by weight, fermenting, then dropwise adding ammonia water to adjust the pH value to 8.5-8.7, filtering, freezing, crushing, sieving and carbonizing to obtain the modified fibers.
9. The stretch resistant composite road sealant as claimed in claim 1, wherein: the petroleum resin is any one of C9 petroleum resin or C6 petroleum resin.
10. The stretch resistant composite road sealant as claimed in claim 1, wherein: the isocyanate is any one of toluene diisocyanate, diphenylmethane diisocyanate or trimethylhexane diisocyanate.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553513A (en) * | 2006-10-11 | 2009-10-07 | 圣戈班伊索福公司 | Phenolic resin, preparation method, sizing composition for mineral fibres and resulting products |
| CN104357008A (en) * | 2014-11-25 | 2015-02-18 | 李保集 | Road crack sealant and preparation method thereof |
| CN109734387A (en) * | 2019-02-20 | 2019-05-10 | 张文中 | A kind of preparation method of anti-folding bamboo pulp cement plate |
| CN110003832A (en) * | 2019-02-25 | 2019-07-12 | 许水仙 | A kind of compound steel bonding glue of stretch-proof |
| CN110294875A (en) * | 2019-06-12 | 2019-10-01 | 李承忠 | A kind of preparation method of compounded rubber resilient cushion |
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2019
- 2019-10-21 CN CN201910997661.9A patent/CN110724482A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553513A (en) * | 2006-10-11 | 2009-10-07 | 圣戈班伊索福公司 | Phenolic resin, preparation method, sizing composition for mineral fibres and resulting products |
| CN104357008A (en) * | 2014-11-25 | 2015-02-18 | 李保集 | Road crack sealant and preparation method thereof |
| CN109734387A (en) * | 2019-02-20 | 2019-05-10 | 张文中 | A kind of preparation method of anti-folding bamboo pulp cement plate |
| CN110003832A (en) * | 2019-02-25 | 2019-07-12 | 许水仙 | A kind of compound steel bonding glue of stretch-proof |
| CN110294875A (en) * | 2019-06-12 | 2019-10-01 | 李承忠 | A kind of preparation method of compounded rubber resilient cushion |
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