KR20040028877A - The manufacturing process of high functional color paving binder - Google Patents

Abstract

PURPOSE: A method for preparing a high functional binder for color pavement is provided, to allow a binder to be used without the modification of common Ascon plant and to improve the ductility, the strength and the transmittance of a binder. CONSTITUTION: The method comprises the steps of heating 100 parts by weight of a process oil to a temperature of 100-200 deg.C; adding 5-40 parts by weight of a thermoplastic resin to the heated oil and melting it completely; and adding 150-250 parts by weight of a petroleum resin after the thermoplastic resin is molten completely, and heating it to a temperature of 100-200 deg.C to make it be homogeneous. Preferably the thermoplastic resin comprises low molecular weight polyethylene or ethylene vinyl acetate, and amorphous polypropylene; and the petroleum resin is an aliphatic petroleum resin or a copolymeric petroleum resin.

Description

Manufacturing method of high functional color packaging binder {THE MANUFACTURING PROCESS OF HIGH FUNCTIONAL COLOR PAVING BINDER}

The present invention relates to a binder for reforming used in conventional dark brown color asphalt and colored concrete, and in particular, the same as in general ascon construction, which can be easily performed, and relates to a color paving binder having a ductility and strength inherent in a binder. .

In general, colored concrete and colored ascon are mainly used for sidewalks, walks in parks, sports stadiums and bicycle paths for the purpose of aesthetics in Korea. In foreign countries, crosswalks, intersections, points of accidents, It is used for paving roads and tunnels in front of schools, and it is used for road junctions and bus stops to improve the function of roads.

The disadvantages of color concrete used for this purpose are

① Longer construction period due to curing of concrete and elapsed time of epoxy coating

② Complexity of process by new joint construction

③ Increased labor cost due to prolonged construction period and complicated construction process

④ Crack generation due to weak impact resistance

⑤ Discoloration of color due to peculiar whitening phenomenon of concrete

⑥ Difficulties in maintenance after construction are being discussed.

The disadvantages of the dark brown color ascone

① When only pigment is added to general asphalt, it is difficult to pack colorful and colorful colors.

② When using the existing dark brown or dark green binder, it is difficult to maintain the initial color for a long time.

③ It is impossible to install with vivid color as pigment color,

④ The binding strength with aggregate is weak, so it is impossible to pack the color of single fee with high permeability.

⑤ The lack of resistance to plastic deformation is a problem.

The general manufacturing method of the color ascon as described above has been prepared by adding a mixture of aggregates of various sizes and pigments and modifiers that can produce the desired color.

In general, binders used in color ascone are colorless to show various colors, so they are generally colorless binders (binders having similar physical properties to asphalt AP-3 grades. ), Etc. are used.

In addition, aggregate used in the production of color ascon generally has been used by adding the crushed aggregate used in various ratios.

In particular, a modifier is added to reinforce the strength of ascon, and various research results and patents have been provided for reinforcing the strength of ascon using a polymer component as a main shaft.

As the above-mentioned modifiers, Korean Patent Application Publication Nos. 95-3393, 94-702908, 94-7121, 52-105925, 51-63819, 56-63819, and 56-56. 93757, Japanese Patent Application Laid-Open No. 49-98418, US Patent Publication Nos. 3,853,799, US Pat. No. 3,992,341, and the like.

However, although the strength of the asphalt can be reinforced to some extent with the above-mentioned modifier, the color ascone still using the modified polymer prepared by the above method is used for the driveway.

① plastic deformation of the high temperature heater in summer,

② wear caused by driving

③ Cracking at Low Temperature (Low Temperature Crack)

④ In case of long-term use, problems such as crack occurrence (fatigue crack) due to continuous traffic loads are emerging.

The present invention sufficiently improves the physical properties of the binder in order to solve the problems listed above, and solves all the problems and at the same time to produce as used without improving the general ascon plant to minimize the additional cost in the production of the mixture It aims to make color packaging popular.

Another object of the present invention is to be able to shorten the construction, simplify the process, thereby reducing labor costs because it is the same as general ascon construction.

Another object of the present invention is to improve the ductility and strength inherent in the binder, to eliminate the whitening phenomenon by the transparency of the binder and the pigment, and to ensure a vivid color because of the excellent transparency of the binder.

Another object of the present invention is to improve durability by the binder-specific elasticity and the adhesion of the binder to the strong aggregate, to increase the composite shear modulus (coefficient of force to resist all deformation) at high temperatures, phase at high temperatures Improved by reducing the angle (ratio of viscosity and elasticity) to solve the problem of abrasion and peeling due to plastic deformation vehicle running, which is a disadvantage of the color packaging using the modified binder for color packaging. The problem of fatigue cracking that occurs is to increase the phase angle at low temperatures, to increase the number of phases (coefficient of force resisting all deformations), to reduce the creep stiffness, which is an index of the low temperature, and to improve the low temperature cracking. And to improve resistance to fatigue cracking.

The present invention for achieving the above object is a step of heating the temperature to 100 ~ 200 ℃ after injecting the process oil into the tank in a mixing tank capable of heating, cooling and stirring; Adding thermoplastic elastomers, thermoplastic resins, and rubbers to the process oil to which the process is completed, and stirring them until they become a uniform phase; When the homogeneous phase is obtained by the above process, a petroleum resin or the like is added thereto to prepare a transparent or translucent binder for color packaging by heating the temperature to 100 to 200 ° C. while stirring until the materials are uniformly dispersed. do.

1 is a viscosity of the temperature of AP-3

2 is a viscosity of the temperature of the modified binder for the existing color packaging

3 is a viscosity-specific viscosity of the modified binder for color packaging

4 is a composite shearing number and phase angle of the modified binder for color packaging

5 is a view showing the operating principle of the dynamic shear shear rheometer (DSR) for measuring the complex shear modulus, phase angle and dynamic shear stress of the present invention.

The high functional color packaging binder of the present invention is composed of the following composition.

1) Processes

Aromatic Process Oils, Paraffin Process Oils, Naphthain Process Oils

2) Petroleum Resin

Aromatic Hydrocarbon Resin, Aliphatic Hydrocarbon Resin, Copolymerized Petroleum Resin, Hydrogenated Petroleum Resin

3) Thermoplastics

Polystyrene, Low Density Polyethylene, Polypropylene, Low Molecule Polyethylene, Amorphous Polypropylene, Amorphous Polypropylene Copolymer, Ethyl Vinyl acetate copolymer (ethylene-vinyl-acetate), ethylene ethyl acrylate copolymer (Ethylene Ethyl Acrylate)

4) Thermoplastic Elastomer

Styrene Butadiene Block Copolymer, Styrene Isoprene Block Copolymer

5) Amorphous Poly Olefine (APO), Thermoplastic Polyolefin

In the manufacturing method of the present invention, the process oil is introduced into the tank into a mixing tank capable of heating, cooling, and stirring, and the temperature is heated to 100 to 200 ° C., and thermoplastic elastomers, thermoplastic resins, and rubbers are added to form a uniform phase. Stir until, and when it becomes a homogeneous phase, it adds petroleum resin etc. and heats it to 100-200 degreeC, stirring until materials are disperse | distributed uniformly. When the entire binder becomes a uniform phase, the transparent or translucent binder for color packaging of the present invention is completed, which will be described in detail with specific examples.

Example 1

Heating 100 parts of paraffinic oil to 100 to 200 ° C;

Adding 7.5 parts of low-density polyethylene to the oil heated by the above process to completely melt it, and then adding and melting 20 parts of an amorphous polypropylene resin;

When the amorphous polypropylene was completely melted in the above process, 170 parts of aliphatic petroleum resin or copolymerized petroleum resin was added thereto, and the mixture was completely melted while heating to 100 to 200 ° C. to prepare a homogeneous phase.

Example 2

To 100 parts of paraffinic oil heated to 100-200 ° C, 7.5 parts of low molecular weight polyethylene having a molecular weight of 1,000 or more and 10,000 or less is added and melted. Then, 30 parts of amorphous polypropylene resin is added and melted. 170 parts of petroleum resin or copolymerized petroleum resin was added and completely melted while heating to 100 to 200 ° C. to prepare a uniform or transparent transparent binder of the present invention.

Example 3

25 parts of amorphous polyolefin resin is added to 100 parts of paraffinic oil heated to 100 to 200 ° C, followed by melting. 36 parts of amorphous polypropylene resin are melted. When the amorphous polypropylene is completely melted, 200 parts of aliphatic petroleum resin or copolymerized petroleum resin is melted. A transparent or semi-transparent special binder of the present invention was prepared by melting and completely melting while heating to 100 to 200 ° C. to obtain a uniform phase.

Example 4

30 parts of thermoplastic polyolefins are poured into 100 parts of paraffin oil heated to 100-200 degreeC, and are melted. When the thermoplastic polyolefin was completely melted, 160 parts of an aliphatic petroleum resin or copolymerized petroleum resin was added thereto, and then completely melted while heating to 100 to 200 ° C. to prepare a transparent or semitransparent special binder of the present invention.

In order to compare the transparent or semi-transparent special binder of the present invention prepared by the above process with the binder used in the prior art of the color paving modified binder (Comparative Example 1) and road paving asphalt binder (Comparative Examples 2,3) In order to compare the physical properties, high functional color packaging binders and conventional color packaging modified binders were prepared as follows. In addition, two kinds of asphalt binders for road pavement were prepared for comparison of physical properties.

Comparative Example 1

It is prepared by heating to 100 ~ 200 ℃ by blending the conventional color packaging binder 35% by weight naphthenic oil 5% by weight thermoplastic elastomer, 60% by weight aromatic petroleum resin.

Comparative Example 2

Asphalt binder penetration grade 60 ~ 80 (AP-5) for general road paving

Comparative Example 3

Asphalt binder penetration grade 80 ~ 100 (AP-3) used in general pavement

Mechanical properties, mechanical strength, and viscoelastic properties were evaluated for the composition and pavement asphalt binders prepared in Examples and Comparative Examples, respectively, and the evaluation items included the physical properties and toughness of pavement binders such as softening point, penetration, and elongation. The mechanical strength to evaluate adhesion to aggregates such as varnish and tenacity, dynamic shear test on the residue after the raw binder and thin film heating test, and the aging characteristics after the aging test were evaluated. 2 and Table 3 are shown.

Table-2 Evaluation Method

Evaluation item Exam name Test equipment Test Methods Basic Physical Properties Softening point Softening point testing machine KS M 2250 Trespassing Penetration tester KS M 2252 Shinto Elongation tester KS M 2254 Mechanical strength Toughness Toughness Tena City Tester Japanese Packaging Test Manual Tena city Viscoelastic properties Combined shear modulus (Ｇ ^＊ ) Dynamic Shear Rheometer (DSR) AASHTO TP 5 Phase angle (δ) Dynamic shear stress Shear stress after thin film heating test Shear stress after high pressure aging test

AASHTO: American Association of State Highway Transportation Officials.

Figure 5 shows the operating principle of the Dynamic Shear Rheometer (DSR) instrument for testing dynamic shear stresses.

The principle of measuring dynamic shear stress using DSR is as follows.

As shown in Fig. 5, the binder feed is fixed between the rolling plate and the fixed plate, and is fed at a constant frequency. The complex shear modulus (Ｇ ^＊ ), which is a measure of the stiffness of the sample, is obtained by the ratio of the maximum shear stress induced at this time and the maximum shear strain. In general, in the case of viscoelastic material such as asphalt, the stress induced against deformation occurs at a certain time interval. The time interval at this time is called a phase angle (δ), and the shear stress and Along with the shear strain, it is a very important factor to understand the rheological behavior of the binder.

In order for the binder to have a high resistance to plastic deformation, it is preferable that the number of phases in the combination (Ｇ ^＊ ) is large and the phase angle δ is small. The larger the value of Ｇ ^* , the greater the hardness of the asphalt binder, and thus the greater the resistance to plastic deformation. The smaller the δ value, the more elastic the binder becomes.

In the present invention, at 60 ° C. to measure resistance to plastic deformation at high temperatures, at 25 ° C. and 40 ° C. to measure fatigue crack resistance at intermediate temperatures, and at 5 ° C. to measure low temperature crack resistance at low temperatures. The compound shear number and phase angle were measured at.

Table-3 Property Evaluation Results

Test Items Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Softening point, ℃ 73 70 88 76 45 48 43 Penetration rate, 1/10 mm 25 ℃ 65 60 60 50 91 57 96 Elongation, cm 7 ℃ 72 82 More than 140 124 107 22 13 Toughness 25 ℃ 223 182 320 398 204 76 58 Tena city 25 ℃ 216 145 271 293 160 43 27 Complex shear step number (Ｇ ^＊ ), ㎪ 60 ℃ 5.7 6.325 7.7274 9.6 1.0117 2.431 1.92 40 ℃ 74 - 77.8 160 13.1 57.3 6.43 25 ℃ 710 1030 753 1188 250 259 34.3 5 ℃ 17000 28652 16400 27744 431 21,300 2710 Phase angle (δ) 60 ℃ 68.9 40.6 58.8 72.3 77.99 88.18 86.5 40 ℃ 71.5 - 63.3 53.4 77.70 82.71 80 25 ℃ 70.8 64.3 64.2 50.9 77.19 69.83 66 5 ℃ 46.1 42.6 46.31 42.6 41.04 39.18 56.7 Dynamic shear stress (Ｇ ^＊ / sinδ), ㎪ 70 ℃ 3.3 3.36 3.42 5.69 0.582 0.436 0.427 76 ℃ 2.1 2.28 2.34 4.11 0.298 0.235 0.223 Thin film heating post-dynamic shear stress (Ｇ ^＊ / sinδ), ㎪ 70 ℃ 2.73 3.45 - 4.91 0.791 1.55 1.2 76 ℃ - 2.21 3.03 3.24 0.364 0.779 0.610

As shown in Table 3 above, when comparing the physical properties at 60 ° C. showing the plastic deformation resistance at high temperatures, Examples 1 to 4 were comparative examples 1 to 3) (Asphalt binders (AP-3, It can be seen that the composite shear modulus is significantly larger for AP-5).

In addition, it can be seen that the phase angle is smaller than that of the comparative example. It can be seen that at high temperature, the case of the example has a greater elasticity than the case of the comparative example and thus has excellent physical properties.

Comparing the physical properties of 25 ℃ and 40 ℃ to measure the fatigue crack resistance in the intermediate temperature range it can be seen that the embodiment has a larger composite modulus of elasticity than the comparative example, the phase angle is small. Since the composite transfer coefficient shows resistance to all deformations, it can be seen that the resistance to fatigue cracking is high even at an intermediate temperature.

Comparing the physical properties at 5 ° C. to measure the resistance to low temperature cracking in the low temperature region, the composite shear modulus showed similar values to those of Comparative Example 2), and were much larger than Comparative Examples 1 and 3). Has This shows that the example has a low temperature characteristic similar to that of Comparative Example 2) but an excellent low temperature characteristic compared to Comparative Examples 1 and 3).

In addition, the phase angle has a larger value in the embodiment than in the comparative example. It can be seen that the resistance to external deformation is large because it has a larger viscosity than the comparative example even at low temperatures.

Pavement mixture is prepared by using a transparent or translucent binder prepared by the above-mentioned manufacturing method. It is possible to make pavement that is highly resistant to the road, and by installing the color mixture on the pavement, it is differentiated from the general pavement and applied to roads that need to ventilate the driver's surroundings such as school zones, intersections, and bus lanes. It is possible to obtain an effect to prevent the, and to be able to manufacture a high-functional packaging binder used in the natural friendly and easy to maintain color asphalt.

The present invention manufactured by the method as described above sufficiently improves the physical properties of the binder, and is produced by using it as it is without improving the general ascon plant so that color packaging can be popularized by suppressing other additional costs in the production of the mixture as much as possible. In addition, since it is the same as general Ascon construction, it is possible to shorten construction, simplify the process, and thereby reduce labor costs.

In addition, according to the present invention, the ductility and strength inherent in the binder can be improved, and the whitening phenomenon can be eliminated by the transparency of the binder and the pigment, and because the transparency of the binder is excellent, a vivid color can be secured. Durability is improved by the adhesion of the binder to the strong aggregate, the composite shear modulus at high temperature is increased, and the phase angle at high temperature (ratio of viscosity and elasticity) is improved to improve the color by using the modified binder for color packaging. It solves the problem of abrasion and peeling due to plastic deformation of vehicle, which is a disadvantage of packaging, and the problem of fatigue cracking caused by low temperature cracking and long-term use at low temperature increases the phase angle at low temperature, Increasing creep stiffness, which is an index of brittleness at low temperatures, can be reduced to reduce cracking and fatigue cracking at low temperatures. It is possible to improve the resistance.

Claims (9)

Heating 100 parts of the process oil so as to be 100 to 200 ° C; 5 to 40 parts of a thermoplastic resin is added to the oil heated by the above step to completely melt it; When the thermoplastic resin is completely melted in the above step, 150 to 250 parts of petroleum resin is added, and the melt is completely melted while heating to 100 to 200 ° C. The method according to claim 1 The thermoplastic resin is a manufacturing method of a high-functional color packaging binder, characterized in that consisting of low density polyethylene and amorphous polypropylene. The method according to claim 1 The thermoplastic resin is a low-molecular weight polyethylene and amorphous polypropylene having a molecular weight of 1,000 or more than 10,000 or less, a method for producing a high-performance color packaging binder, characterized in that. The method according to claim 1 The thermoplastic resin is a manufacturing method of a high functional color packaging binder, characterized in that consisting of ethylene vinyl acetate and amorphous polypropylene. The method according to claim 1 The petroleum resin manufacturing method of a high-functional color packaging binder, characterized in that consisting of aliphatic petroleum resin or copolymerized petroleum resin. Heating 100 parts of the process oil so as to be 100 to 200 ° C; 5 to 40 parts of an amorphous olefin polymer or a thermoplastic polyolefin and 5 to 40 parts of a thermoplastic resin are completely melted in the oil heated by the above process; The method of producing a high-performance color packaging binder, characterized in that to produce a homogeneous phase by completely melting while heating to 100 ~ 200 ℃ by adding 150-250 parts of petroleum resin in a completely uniform phase in the process. The method according to claim 6 The petroleum resin manufacturing method of a high functional color packaging binder, characterized in that made of aliphatic petroleum resin. The method according to claim 6 The petroleum resin manufacturing method of a high functional color packaging binder, characterized in that consisting of a copolymerized petroleum resin. Heating 100 parts of the process oil so as to be 100 to 200 ° C; 5 to 40 parts of an amorphous olefin and a high molecular weight thermoplastic polyolefin in the oil heated by the above step and completely melted; The method of producing a high-performance color packaging binder, characterized in that to produce a homogeneous phase by completely melting while heating to 100 ~ 200 ℃ by adding 150-250 parts of petroleum resin in a completely uniform phase in the process.