KR100557016B1 - Manufacturing method of water dispersion resin composite binder and paving method of paving material using it - Google Patents

Abstract

The present invention relates to manufacturing a water-dispersible resin composite binder and a method for constructing a road pavement using the same, and more particularly, a water-dispersed polyurethane resin prepared by a condensation polymerization reaction, and a water-dispersed polyacryl prepared by a resin-reinforced polymerization reaction. The present invention relates to a composite binder prepared by mixing a resin and a method for constructing a road pavement using the same.

The water-disperse resin composite binder according to the present invention has high stability and adhesion of the particles, and can be used in various ways according to the composition ratio, and it is environmentally friendly by dispersing without using a solvent and ensuring safety for workers. There is an advantage.

In addition, the pavement for roads using the water-dispersible resin composite binder according to the present invention does not generate a popping phenomenon, and can be used by mixing crushed stone and fine urethane chips, and by mixing pigments and color ceramic aggregates, etc. It can also be used as a color packaging material, and because of its high elasticity, there is an advantage of easily crushing snow in winter.

Water Dispersible Polyurethane Resin, Water Dispersible Polyacrylic Resin, Water Dispersible Resin Composite Binder, Road Paving Materials

Description

MANUFACTURING METHOD OF WATER DISPERSION COMPOSITE BINDER AND PAVING METHOD OF PAVING MATERIAL USING IT}

1 is a view showing a reaction process of the water-dispersed polyurethane resin.

Figure 2 is a graph of the dispersion of the polyurethane resin prepared in accordance with an embodiment of the present invention and analyzed by FT-IR.

3 is a graph showing the effect of the molecular weight of the polyol on the molecular weight of the water-dispersed polyurethane resin.

Figure 4 is a graph showing the effect of the amount of chain extender on the size of the water dispersion polyurethane resin particles.

5 is a graph showing the effect of the neutralizing agent and carboxyl group ratio on the size of the water dispersion polyurethane resin particles.

6 is a schematic view showing the principle that the water dispersion polyurethane resin particles are dispersed in water stably.

7 is a graph showing the effect of the dielectric constant on the size of water-dispersed polyurethane resin particles.

8 is a flow diagram showing the principle of water dispersion of water-dispersible polyacrylic resin particles.

9 is a graph showing the distribution of water-dispersed polyacrylic resin particle size according to the degree of neutralization (%) of polystyrene alpha-methylstyrene acrylic acid.

Figure 10 shows one embodiment of constructing a functional road pavement using a water-dispersible resin composite binder according to the present invention.

Figure 11 shows another embodiment of constructing a functional road pavement using the water-dispersible resin composite binder according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: water dispersion resin composite binder 200: aggregate or color ceramic aggregate mixture

300: thermal compression roller 400: finish coating roller

The present invention relates to manufacturing a water-dispersible resin composite binder and a method for constructing a road pavement using the same, and more particularly, a water-dispersed polyurethane resin prepared by a condensation polymerization reaction, and a water-dispersed polyacryl prepared by a resin-reinforced polymerization reaction. The present invention relates to a composite binder prepared by mixing a resin and a method for constructing a road pavement using the same.

In recent years, various industrial regulations have been strengthened in all industries around the world. In Korea, VOC regulations are regulated through the provisions of Article 28-2, Regulation of Volatile Organic Compounds, Air Quality Preservation Act. Is strengthening. Accordingly, there is an increasing need to reduce the field of VOC use and replace it with clean materials in order to cope with such changes in the global market and to export to developed countries.

Solvent-type polyurethane binders and adhesives, which are widely used to date, have excellent heat resistance, oil resistance, solvent resistance, cold resistance and flexibility, and excellent adhesion to various materials, but toluene, xylene, acetone, and methyl ethyl By using a large amount of solvent, such as ketone, cyclohexane, there was a problem that pollutes the environment and is vulnerable to the safety of the operator. In addition, when the solvent-type polyurethane binder and the adhesive is used for the road paving material, there is a problem that the wave name phenomenon of the paving material occurs due to an organic solvent such as thinner in the summer when the temperature is high, and thus it is not suitable for use as a road paving material.

In particular, as mentioned above, as the regulations on environmental pollution are tightened in all industrial fields, researches for hydrophobic hydrophobic polyurethanes requiring the use of volatile solvents are continued. Japanese Patent Application Laid-Open No. H5-43642 discloses a method of introducing a hydrophilic group into a polyurethane skeleton to make a self-emulsifying resin and then dispersing it in water. Japanese Patent Publication No. 39-5989, Japanese Patent Publication No. 45- Korean Patent No. 10957 discloses a method of forcibly dispersing hydrophobic polyurethane using a large amount of emulsifier, but the polyurethane-based binder or adhesive prepared by this method has a problem in that molecular weight and adhesive strength are inferior to solvent type products. .

In addition, various types of water-soluble resins have been studied and used depending on the purpose of use, such as water-soluble acrylic resins by polymerization, urethane resins, and emulsion resins by emulsion polymerization.However, when used as road paving materials, the evaporation rate of water is significantly slower. The workability is greatly changed according to the external conditions such as the climate and the facility, and there is a problem that the conditions such as temperature and humidity should be optimally set. In the case of the water-dispersed polyurethane adhesive, the elasticity and adhesion are excellent but the stability of the particles is high. Apart from adding emulsifiers to delay the curing, there is a disadvantage in that the cumbersome and economical burden for the multi-step process is added because it requires a process of removing it again.

In addition, a study of mixing a water-dispersed polyurethane and an acrylic resin was also carried out, and the water evaporation rate of the water-dispersed polyurethane was significantly slowed, resulting in a difficulty in working due to a popping phenomenon due to the evaporation rate difference. .

The present invention has been made to solve the above-mentioned problems of the prior art, in the present invention, the stability and adhesion of the particles by mixing the dispersed dispersion of polyacrylic resin excellent in particle stability with the dispersed dispersion of polyurethane resin is less stable This is high, it is possible to vary the use use according to each composition ratio, by dispersing without using a solvent to provide an environment-friendly, safe dispersion of the resin composite manufacturing method that can ensure the safety of the worker.

In addition, in the present invention, no popping phenomenon occurs, and can be used as a packaging material by mixing crushed stone and fine urethane chips, and can be used as a color packaging material by mixing pigments and color ceramic aggregates, and with high elasticity Therefore, to provide a construction method of a functional road pavement using a water-dispersible resin composite having a winter snow ice grinding function.

In order to achieve the above technical problem, a water-dispersible resin composite binder manufacturing method according to the present invention,

Dispersed polyurethane resin produced through a water-dispersible polyurethane resin manufacturing step, a dispersible polyacrylic resin manufacturing step, and the dispersible polyurethane resin manufacturing step and a dispersible polyacryl resin produced through the polyacrylic resin manufacturing step It comprises a water-based resin mixing step of mixing the resin,

The water-dispersible polyurethane resin manufacturing step, after preparing a polyurethane prepolymer, consists of a process of water dispersion and chain extension of the prepared polyurethane prepolymer,

The water-dispersible polyacrylic resin manufacturing step, after the polymerization of the alkali solbulum random copolymer, it is water-dispersed, it consists of a process of grafting a carboxyl group on the surface of the alkali solbulum random copolymer.

The polyurethane prepolymer dissolves a polyester polyol having the same two or more hydroxyl groups, and then stirs it with an aliphatic isocyanate to form a urethane bond. Dimethylpropionic acid is used after dissolving in C _n H _{2n + 1} OH or N-methyl-2-pyrrolidone, such as methanol or ethanol, where n is 4 or less.

After stirring and cooling the polyurethane prepolymer having a hydrophilic group bonded through the above-described process, neutralizing it by adding a tertiary amine such as triethylamine as a neutralizing agent, dispersing it by gradually adding it to water, and then diamine or Dispersed polyurethane resin is produced through the process of chain extension by quantitatively adding chain extenders such as diol.

At this time, by adjusting the size of the particles of the polyurethane dispersed in the water through the carboxyl group and the diisocyanate and dielectric constant (dielectric constant) it can increase the adhesion and elasticity.

On the other hand, the polyester-based polyol has a melting point of 25 ℃ or more and a molecular weight of 600 ~ 2000, the number of hydroxyl groups (OH number) is preferably used more than 38 (mg / KOH / equivalent weight polyol), the aliphatic Isocyanates are preferably used in which two or more isocyanates are bonded directly or indirectly to an aliphatic chain.

Next, the alkali solable random copolymer polymer is added to the inside of the reactor containing water so that nitrogen is not affected by air, and then added by adding a potassium persulfate initiator and stirring with styrene and acryl. It is prepared by adding methyl styrene, acrylic acid compound and benzoic acid, and dispersing it in water with neutralization by adding sodium hydroxide to the alkali soluble random copolymer prepared above, and then adding methacryl to add carboxyl groups to the surface of the particles. A water-soluble polyacrylic resin having a carboxyl group on the surface of the dispersed particles is prepared by grafting onto the surface of the particles while slowly adding a monomer such as methyl methacrylate. At this time, it is preferable to adjust the ionic degree of the residual sodium hydroxide (NaOH) with sodium chloride (NaCl).

On the other hand, the alkali soluble random copolymer (ALkali-soluble random copolymer: ASR) as the molecular weight (Mn) 4,300; Molecular weight (Mw) 8,600; Preference is given to using polystyrenealpha-methylstyreneacrylic acid (poly (styrene / α-methylstyrene / acrylic aicd)) having an acid number 190.

Finally, the water-dispersed resin composite by mixing a water-dispersed polyurethane resin having a solid content of 40% by weight or more and a water-based polyacrylic resin having a solid content of 30-40% by weight in a weight ratio of 0.3 to 1.0. A binder is prepared.

When the weight ratio is 1.0 or more, the physical properties are poor, and when 0.3 or less, the safety is lowered.

On the other hand, the pre-mixed pigments such as titanium oxide or carbon black and sieving pigments, such as barium sulfate, calcium carbonate or magnesium silicate, amino resin-based curing agent, fused silica, and associative thickener, and then the water-dispersed urethane When mixing and stirring the resin and polyacrylic resin, the color binder can be prepared. When mixing the water-dispersed urethane resin and the polyacrylic resin, the rubber and fine urethane chips are added to 30% by weight or less. A functional water-dispersible resin composite binder with a grinding function can be prepared.

Functional road pavement construction method using a water-dispersible resin composite binder of another aspect of the present invention, after applying the water-dispersible resin composite binder prepared in accordance with the above method to a thickness of 1mm ~ 50mm, mixed aggregate or color ceramic aggregate 1mm ~ 70mm thickness is applied on top of it while applying pressure and heat to evaporate the moisture of the binder to achieve a certain surface, and to apply a thin dispersion resin composite binder thinly on the top surface so that the total packaging material thickness does not exceed 100mm. It consists of a process.

At this time, it is natural that a water-dispersible resin composite color binder may be used as the composite binder, or a functional water-dispersible resin composite binder including fine rubber or urethane chips may be used.

In addition, when the composite binder is secondarily applied to the uppermost surface, the water-dispersible resin composite color binder may be intermittently used to display letters, display lines, lanes, and the like on the packaging material.

Hereinafter, the present invention will be described in detail with reference to Examples.

-Residual isocyanate detection

After preparing the water-dispersed polyurethane, the absorption spectrum was examined using FT_IR (Model IFS-66, Brucker) to qualitatively identify the urethane bond.

-Molecular weight and molecular weight distribution

The dried sample was dissolved in tetrahydrofuran (THF) solvent at 0.2%, and then 200 μL was taken with a syringe, and added to gel permeation chromatography (LC-8A, Shumadz, Inc.) equipped with a refractive index detector. The molecular weight and molecular weight distribution were measured. At this time, the column was connected in series by an ultrastyragel column having pore sizes of 103, 104, and 105, and the flow rate of the solvent tetrahydrofuran (TFT) was 2.0 mL / min, and the calibration was PL. It was set as polystyrene.

-Particle size and particle size distribution

Particle size and distribution were analyzed using a particle size analyzer (CHDF from Mattec and Zeta-sizer from BIC).

Example 1. Preparation of Dispersed Polyurethane Resin

After dissolving 0.06mol of polyester polyol (molecular weight 600 ~ 2000g / mol, melting point 35 ~ 40 ℃) with 38 or more hydroxyl groups, make it into liquid phase, and react with 0.09mol of isophorone diisocyanate for 90 minutes at 85 ℃. , 0.03 mol of dimethylol propionic acid was dissolved in 0.00-0.03 mol of 1,4-butadiol, and then added and stirred for 60 minutes to prepare a polyurethane prepolymer.

 Resin Classification Composition ratio (mol) Isophorone diisocyanate 0.09 Polyester polyol 0.06 Dimethylolpropionic acid 0.03 1,4-butadiol 0.00 0.01 0.02 0.03

The prepared polyurethane prepolymer was cooled with rapid stirring, neutralized by gradually adding 0.4 to 1.2 mol of triethylamine at around 55 ° C, and then dispersed in water for 30 to 40 minutes while being gradually added to water to have a solid concentration of 49% by weight. After dissolving, 2.02 g of butylenediamine was dissolved in water to quantitatively prepare a water-dispersed polyurethane resin.

division Composition ratio (g or mol) water 192.2 g Polyurethane prepolymer 185.2 g Triethylamine 0.4mol 0.6mol 0.8mol 1.0mol 1.2mol Butylenediamine 2.02 g

1 is a view showing the synthesis process of the water-dispersible polyurethane resin according to the present invention.

The water-dispersed polyurethane resin is synthesized in two stages. The first stage is to prepare a polyurethane prepolymer, in which a polyester-based polyol having two or more hydroxyl groups and two or more isocyanates are directly or indirectly bonded to an aliphatic chain. It is a process for producing a polyurethane prepolymer composed of a soft part and a hard part having a urethane group by simultaneously reacting an aliphatic isocyanate and a compound having at least one hydroxyl group and a carboxyl group for water dispersion.

The second step is dispersing in water to form small particles by the electrostatic repulsive force between each other, controlling the size of the particles through a neutralizing agent during the dispersing process, and dispersing polyurethane through the chain extension material after the dispersing process. It consists of adjusting the size of the resin particles.

Figure 2 shows a graph prepared by dispersing polyurethane resin according to the present invention and analyzed by FT-IR.

The dispersed polyurethane resins can be seen that the polyurethane is formed from the polyester of NH C = O group, 1527cm ^-1 groups at 1736cm ^-1. In addition, it can be seen that the strong absorption band does not appear in the range of 2280 ~ 2260cm ^-1 does not terminate the isocyanate (NCO) group, which may be a chain extension by the reaction of the terminal NCO group and water to prepare a polyurethane prepolymer. It shows no.

Meanwhile, referring to the table below and FIG. 3, it can be seen that as the molecular weight of the polyester-based polyol is increased to 600, 1000, 1500, and 2000, the diameter of the water-dispersed polyurethane resin particles increases from 28 nm to 47 nm. It can be seen that the molecular weight of the water-dispersed polyurethane resin also increases from 1,500 g / mol to 45,000 g / mol. The use of polyols having a low molecular weight shortens the length of the soft segments of the polymer chain, resulting in good toughness, whereas the use of large molecular weight polyols increases the length of the soft segnemts in the chain. Is soft and flexible, meaning that the elastic force of the water-dispersed polyurethane resin particles increases as the molecular weight of the polyol increases.

Molecular weight of polyols Molar ratio of triethylamine / dimethylolpropionic acid pH Zeta Potential (mV) Particle size (nm) 2000  0.4 7.5 -51.7 47 1500 7.6 -50.1 39 1000 7.5 -52.3 32 600 7.5 -49.2 28

Figure 4 shows a graph showing the effect of the amount of chain extender on the size of the dispersed polyurethane resin particles.

It can be seen that as the amount of the chain extender increases, the water-dispersed polyurethane resin particles increase. As the amount of the chain extender 1,4-butadiol is increased, the length of the entire chain of the water-dispersed polyurethane resin becomes longer. However, it is because the chain extender tends to decrease hydrophilic ionic groups per certain length by combining with hydrophilic ionic groups, hydrophilic groups, or OH groups.

R-COOH + R'-OH = RC = O-OR 'or R-OH + R'-OH = ROR' + H ₂ O

In addition, when the chain extending material is added, the soft segments of the chain increase as much as the chain, thereby increasing the elastic force, which may serve as another variable for increasing the elastic force. In this case, the chain extender may be used diol-based and diamine-based, respectively, or mixed.

Molecular weight of polyols 1,4-butadiol (mole) Molar ratio of triethylamine / dimethylolpropionic acid pH Particle size (nm)  2000 0.00  0.4 7.5 47 0.01 7.6 80 0.02 7.5 147 0.03 7.5 201

5 and the table below shows the effect of the ratio of the neutralizing agent and the carboxyl group on the size of the water dispersion polyurethane resin particles. It can be seen that as the ratio of the neutralizing agent increases, the particle size of the water-dispersed polyurethane resin decreases because the hydrophilic ionic group -COO ^- N (R) ₃ H ⁺ increases by neutralizing the hydrophilic -COOH group through the neutralizing agent. to be.

Molecular weight of polyols Molar ratio of triethylamine / dimethylolpropionic acid  pH % Neutralization of carboxylic acid Particle size (nm) Zeta Potential   2000 0.4 7.5 40 47 -51.7 0.55 8.0 55 40 -53.4 0.70 8.4 70 35 -55.3 0.85 8.7 85 32 -59.5 1.00 9.1 100 29 -63.5 1.20 10.3 120 28 -54.1

6 is a schematic view showing the principle that the dispersion of water-based polyurethane resin particles in accordance with the present invention is stably dispersed in water.

Polyurethane prepolymer is a long chain structure composed of hard and soft parts, which can be stably dispersed by the repulsive force between the hydrophilic ionic groups by bonding a hydrophilic group to the chain structure.

As shown in FIG. 7, the size of the water-dispersed polyurethane resin particles tends to decrease as the dielectric constant increases, which means that the dielectric constant is inversely proportional to the particle size.

Example 2. Preparation of Water Dispersible Polyacrylic Resin

Nitrogen gas was introduced into the reactor while stirring 350 g of water at 70 ° C. to form water and nitrogen gas so that there was no influence of air. Then, 0.5 g of potassium persulfate, an initiator, was added and the acidity was 190. 35 g of polystyrenealpha-methylstyreneacrylic acid (poly (styrene / α-methylstyrene / acrylic aicd)] was added and sodium hydroxide (NaOH) was added to the polystyrene alpha-methylstyrene acrylic acid [poly (styrene / α-methylstyrene / acrylic aicd) )] Is dispersed in water while neutralizing all, and 100 g of methyl methacrylate (methly methacrylate) is gradually added over 30 minutes, and then grafted onto the surface of the dispersed particles to obtain a water-dispersible polyacrylic resin having a carboxyl group on the surface of the dispersed particles. Manufacture. At this time, the sodium ion (NaCl) to adjust the degree of ions of the remaining sodium hydroxide (NaOH).

division Composition ratio (g) water 350 Polystyrene Alpha-Methylstyrene Acrylic Acid 35 Methyl methacrylate 100 Sodium chloride 0.1 0.2 0.3 0.4 Sodium hydroxide 0.1 0.2 0.3 0.4 Potassium perperate 0.5

FIG. 8 illustrates a principle of dispersing the water-dispersible polyacrylic resin prepared by the above method into particles in water, and is not dispersed by a surfactant, but is a carboxylic acid group which is a hydrophilic group or a hydrophilic ionic group like a water-dispersible polyurethane resin. As a result, they have a negative electrode, and the repulsive force of these negative electrodes causes particles to be stably dispersed in water.

9 and the table below is a graph showing the distribution of the water-dispersed polyacryl resin particle size according to the degree of neutralization (%) of polystyrene alpha-methylstyrene acrylic acid.

Amount of methyl methacrylate Amount of polystyrenealpha-methylstyreneacrylic acid % Neutralization of polyester alpha-methylstyreneacrylic acid Dn particle size (nm) Dw particle size (nm)  PDI (Dw / Dn)  2000  35 80 40.6 50.0 1.23 90 40.4 50.9 1.26 100 40.1 59.9 1.49

As a result of adjusting the neutralization degree (%) of polystyrene alpha-methylstyrene acrylic acid by the amount of sodium hydroxide and sodium chloride, it can be seen that the larger the neutralization degree (%) of polystyrene alpha-methylstyrene acrylic acid, the larger the particle size.

Example 3. Composite Binder Preparation

While stirring 100g of the water-dispersible polyurethane resin prepared in Example 1 at 25 ° C., 30g to 100g of the water-dispersible polyacrylic resin prepared in Example 2 was slowly added to prepare a water-dispersible polyurethane-acrylic resin binder. Afterwards, the adhesion was examined. As can be seen in the table below, when 30g of water-dispersed polyacrylic resin is added, it shows the strongest adhesive strength and the adhesion decreases as the dosage is increased.

Amount of Water Dispersed Polyurethane Resin (g) Amount of water-dispersible polyacrylic resin (g) Adhesive force (kgf / 2.0cm)   Example   100 30 10.12 50 9.23 70 8.65 90 8.03 100 7.87 Comparative Example (Bayer 52)  8.70

On the other hand, after dispersing colored pigments such as titanium oxide and carbon black, sieving pigments such as barium sulfate, calcium carbonate and magnesium silicate, amino resin-based curing agent, fused silica and associative thickener and the like, the aqueous resin composite binder When the mixture is added and stirred, a color binder can be prepared.

In addition, when the water-dispersible resin composite binder is mixed, a fine rubber or a urethane chip may be added to prepare a functional water-dispersible resin composite binder having elasticity.

Example 4 Functional Road Pavement Construction Method

10 shows an embodiment of constructing a functional road pavement, the composite binder 100 prepared in Example 3 first applied to a thickness of 40mm first, mixed aggregate or color ceramic having a diameter of 20mm or less thereon Applying aggregate 200 to a thickness of 50mm while applying heat and pressure using a pressure roller 300 immediately to form a certain surface, and then using a coating roller 400 on the top surface of the water-dispersed polyurethane resin and water-dispersed poly The composite binder mixed with acrylic resin is first applied to a thickness of 1 mm and finished.

In the above embodiment, a water-dispersible resin composite color binder may be used, or a functional water-dispersible resin composite binder to which fine rubber or urethane chips are added.

In addition, in the above embodiment, when the composite binder is secondarily applied to the uppermost surface, letters, display lines, lanes, and the like may be displayed on the packaging material by intermittently using the water-dispersible resin composite color binder.

Example 5 Another Construction Method of Functional Road Pavement

11 shows another construction example of a functional road pavement, after mixing and stirring the composite binder 100 prepared in Example 3 and a mixed aggregate or color ceramic aggregate 200 having a diameter of 20 mm or less, While applying to a thickness of 50mm to apply a heat and pressure using a pressure roller 300 immediately to form a certain surface, the construction is simpler than Example 4.

Meanwhile, in the present embodiment, as described above, a water-dispersible levin composite frame color binder may be used, or a functional water-dispersible resin composite binder to which fine rubber or a urethane chip is added may be used.

The above embodiments and drawings are merely for the purpose of describing the contents of the invention in detail, and are not intended to limit the scope of the technical idea of the invention, the present invention described above is a general knowledge in the technical field to which the present invention belongs. It is to be understood that various changes, modifications, and changes can be made without departing from the spirit and scope of the present invention, and are not limited to the embodiments and the accompanying drawings. Together, they should be judged to include equality.

The water-disperse resin composite binder prepared by the above-described water-disperse resin composite binder manufacturing method has high stability and adhesion of the particles, and can be used in various ways depending on the composition ratio, and may not use a solvent. It is possible to secure worker safety.

In addition, the above-described functional road pavement construction method, does not cause popping phenomenon, can be used by mixing the crushed stone and fine urethane chips, it is not only easy to use by mixing the pigment and color ceramic aggregate, it is produced through this The road pavement material has the advantage of easy crushing winter ice due to high elastic force.

Claims (7)

Dissolving a polyester polyol having the same two or more hydroxyl groups, stirring the aliphatic isocyanate to form a urethane bond, and adding a compound containing a carboxyl group and two or more hydroxyl groups to combine a hydrophilic group to prepare a polyurethane prepolymer; , After stirring and cooling the prepared polyurethane prepolymer, it is neutralized with a neutralizing agent such as tertiary amine, and is gradually added to water to disperse water. Then, a chain extender containing a primary or secondary amino group is quantitatively added. Water-dispersed polyurethane manufacturing step consisting of a chain extending process, Nitrogen gas is injected to remove the reaction with air, and potassium phosphate initiator is added to water to stir, and styrene, acrylmethyl styrene, acrylic acid compound and benzoic acid are added to polymerize the alkali solblend copolymer. Process, In order to neutralize by adding sodium hydroxide to the alkali solable random copolymer polymer prepared above, and to disperse in water while grafting onto the particle surface while gradually adding a monomer having the same carboxyl group, such as methyl methacrylate, to control the degree of neutralization. Preparing a water-dispersible polyacrylic resin comprising a process of controlling the size of particles by slowly adding sodium chloride, A water-dispersed polyurethane resin having a solid content of 40 wt% or more produced through the water-dispersed polyurethane resin manufacturing step and a water dispersion of 30 to 40 wt% of a solid content prepared by the water-dispersed polyacrylic resin manufacturing step. A water-dispersible resin composite binder manufacturing method comprising a water-soluble resin mixing step of mixing a polyacrylic resin in a weight ratio of 0.3 to 1.0. The method of claim 1, The polyester polyol used for preparing the polyurethane prepolymer has a melting point of 25 ° C. or higher and a molecular weight of 600 to 2000, and has a hydroxyl number (OH number) of 38 (mg / KOH / equivalent weight polyol) or more. Dispersed resin composite binder manufacturing method. The method of claim 1, Alkyl acid compounds used in the alkali sorbable copolymer copolymer is a polystyrene alpha-methylstyrene / acrylic acid (poly (styrene / α-methylstyrene / acrylic aicd)) having an acidity of 190 or more and a molecular weight of more than 8,000. Dispersed resin composite binder manufacturing method characterized in that. The method of claim 1, The water-disperse resin mixing step, coloring pigments such as titanium oxide or carbon black, sieving pigments such as barium sulfate, calcium carbonate or magnesium silicate, an amino resin-based curing agent, fused silica and an associative thickener, etc. The water-dispersible resin composite binder manufacturing method characterized in that the pre-mixing and then adding the mixture when mixing the water dispersion resin. The method of claim 1, The water-dispersible resin mixing step, the water-dispersible resin composite binder manufacturing method, characterized in that for mixing by further adding an epoxy resin when mixing the water dispersion resin. The method of claim 1, The water-dispersible resin mixing step, a water-dispersible resin composite binder manufacturing method, characterized in that the addition of the fine rubber chip or urethane chip when mixing the water dispersion resin. After applying the water-disperse resin composite binder prepared by the method of any one of claims 1 to 6 in the thickness of 1mm ~ 50mm, and inserting the mixed aggregate or color ceramic aggregate in the thickness of 1 ~ 70mm thereon Water is evaporated to form a certain surface by evaporating the moisture of the binder, and further comprising the step of applying a thin coating of the water-dispersible resin composite binder again on the top surface so that the total packaging material thickness does not exceed 100mm. Functional vehicle packaging material construction method using a resin composite binder.

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