KR100888702B1 - Coating composition for improvement of anti-soiling and processing sheet - Google Patents

Abstract

A surface treatment composition is provided to ensure weather resistance and anti-fouling property, particularly water-tightness by imparting ultraviolet protection function and antistatic property on an ultraviolet protection function and antistatic property on the surface of a substrate like metal, plastic, glass, interior and exterior materials for construction, and tarpaulin. A surface treatment composition comprises a mixture compound 100.0 parts by weight, antistatic agent 0.1-0.2 parts by weight, UV stabilizer 0.1-0.3 parts by weight, surfactant 0.1-0.5 parts by weight, at least one kind of organic solvent 55-60 parts by weight selected from methanol, ethanol, isopropanol, butanol which is low boiling point or high boiling point alcohols, and water 5.0-10 parts by weight as solvent. The mixture compound comprises a thermoplastic polyolefin series elastomer copolymer 70-95 parts by weight, talc or calcium carbonate(CaCO3) 4.5-28 parts by weight as filler, bis sebaceate-based or poly-tetra methyl butyl-amino-based UV Stabilizer 0.3-1.0 parts by weight as a UV stabilizer, phosphite and hydroxylamine-based phenol free processing stabilizer 0.1-0.5 parts by weight as an antioxidant and monoglyceride 0.1-0.5 parts by weight as an antistatic agent.

Description

Coating agent for improvement of anti-soiling and processing sheet

The present invention is provided with a UV protection function and an antistatic property on the surface of the substrate such as metal, plastic, glass, building interior and exterior materials, tarpaulin to enhance weather resistance and antifouling properties;

In particular, the present invention relates to a surface treatment agent composition and a processed sheet using the composition, in which the watertightness of the substrate is enhanced.

The surface treating agent composition is sprayed onto the surface of the substrate in a liquid form and coated, or the composition is bonded to the surface of the substrate in the form of a processed sheet processed in a processing machine,

UV protection and antistatic properties are imparted to the surface of the substrate to enhance weather resistance and antifouling properties;

In particular, it is the invention regarding the surface treating agent composition of the composition which strengthens the watertightness of the said base material, and the processed sheet using the same.

City fumes, dust and clay particles, combustion products, etc., which are suspended in the air, are naturally deposited on various substrates on a clear day, and these deposits or floating dusts are washed by rainwater along the rain and flow through the surface of the substrate. Pollutants are attached to the surface of the rainwater along the path.

Thus, many substrates exposed to the atmosphere over time lose the inherent properties of the surface and face a serious surface contamination problem.

Particularly, in the case of a substrate having frequent water contact such as a trough or a water tank, water is introduced into the joint portion, thereby decreasing the watertightness, and there is a problem in that the substrate is corroded by water contact for a long time.

As a conventional technique for improving this, a separate waterproof sheet is installed on the surface of the substrate, but is used in a configuration in which the watertightness of the substrate is enhanced.

The end portion of the waterproof sheet is installed on the iron plate as the base material is a silicon finish treatment, the silicon is released to the outside during long-term use, the leakage part is generated in the side portion of the side plate of the iron plate where the end of the waterproof sheet is installed Water is introduced into the water-tightness problem and,

The connection parts of the substrate overlap each other or are welded to each other, and the connection parts are corroded by water contact and leaks are generated;

In the prior art for preventing this, after adhering the adhesive tape of the double-sided TAPE structure to the substrate, the waterproof sheet is bonded to the upper portion of the adhesive TAPE, but the structure of the water-tightness of the substrate is reinforced,

In addition, the adhesive strength is lowered due to the peeling phenomenon of the adhesive tape, the waterproof sheet is separated from the substrate to the outside, it is difficult to use,

Workability is reduced by bonding the waterproof sheet to the outside of the substrate,

As a result of bonding the waterproof sheet to the outside of the substrate, there is a problem that aesthetics due to the thickening of the entire substrate is reduced and the cost is increased.

In addition, the surface treatment agent of the prior art coated or applied to the surface of the substrate,

The surface of the substrate by spraying a coating for improving the antifouling and weather resistance, or a composition for applying the antifouling and weather resistance improving paint, the antifouling and weather resistance improving effect, but

As mentioned above, the watertightness of the substrate with frequent contact of water, such as a trough gutter and a water tank, is lowered, and thus, a problem that is difficult to use for the above-mentioned use is occurring.

The surface treating agent composition of the present invention is sprayed and coated on the surface of a substrate such as metal, plastic, glass, interior and exterior materials for construction, tarpaulin, or a processed sheet using the composition is bonded to the surface of the substrate,

UV protection and antistatic properties are imparted to the substrate to enhance weather resistance and antifouling properties;

In particular, the composition which enhances the watertightness of the said base material;

It is an object of the present invention and the technical problem to be achieved by the present invention to provide a surface treating agent composition and a processed sheet using the same.

Weathering and antifouling properties of substrate surfaces such as metals, plastics, glass, architectural interior and exterior materials, tarpaulins are enhanced;

In particular, the watertightness of the substrate is enhanced;

The above-mentioned subject is solved by providing the surface treating agent composition of the composition of this invention, and the processed sheet using the same.

The surface treating agent composition of the present invention is sprayed or coated on the surface of the substrate in liquid form, or the composition is bonded to the surface of the substrate in the form of a processed sheet processed in a processing machine,

UV protection and antistatic properties are imparted to the surface of the substrate to enhance weather resistance and antifouling performance;

In particular, it is a very useful invention with the effect of strengthening the watertightness of a base material.

The present invention is given to the surface of the substrate, such as metal, plastic, glass, building interior and exterior materials, tarpaulin, UV protection and antistatic properties to enhance weather resistance and antifouling properties,

In particular, it relates to a surface treatment agent composition and a processed sheet using the composition having a composition that enhances the watertightness of the substrate;

The surface treating agent composition of the present invention,

As a main raw material, 10-30 weight% of polypropylene (PP) which is a thermoplastic polyolefin resin, and 15-25 weight% of polyethylene (PE) contain 55-65 weight% of rubber,

60 to 80% by weight of a primary thermoplastic polyolefin elastomer resin (TPE resin: Thermo Plastic Elastomer) having a melting flow rate of 0.5 to 0.7, a density of 0.85 to 0.95, and a hardness of 25 to 35 ,

5 to 30% by weight of polypropylene (PP) and 15 to 30% by weight of polyethylene (PE) and 55 to 65% by weight of rubber are used for improving storage properties and workability of the primary thermoplastic polyolefin elastomer resin. ,

Thermoplastic polyolefin-based elastomer air with a melt flow rate of 8.0 to 10, a density of 0.85 to 0.95, and a hardness of 25 to 35 secondary thermoplastic polyolefin elastomer resin of 20 to 40 wt%. 70 to 95 parts by weight of coal And;

As an auxiliary material, 4.5 to 28 parts by weight of talc or calcium carbonate (CaCO 3), which is a filler for filling;

As an additive, the sunscreen Bis sebaceate series or Poly-tetra methyl

0.3 to 1.0 parts by weight of a butyl-Amino UV Stabilizer;

0.1 to 0.5 parts by weight of an phosphite & hydroxylamine-based Phenol free processing Stabilizer as an antioxidant;

0.1 to 0.5 parts by weight of an antistatic agent, Monoglyceride, a mixed composition is composed;

Per 100 parts by weight of the mixed composition,

0.1 to 0.2 parts by weight of an antistatic agent, 0.1 to 0.3 parts by weight of a UV stabilizer, 0.1 to 0.5 parts by weight of a surfactant, 55 to 60 parts by weight of one organic solvent selected from methanol, ethanol, isopropanol and butanol, which are low or high boiling alcohols Wow,

5.0-10 parts by weight of solvent, water; The total composition of the surface treating agent is formed.

The thermoplastic polyolefin elastomer resin (TPE resin),

By providing elastic force, cracks are prevented, and the composition improves water resistance, cold resistance, and abrasion resistance properties.

It is used for the purpose of strengthening the watertight performance of the base material at the time of coating or applying the surface of the base material, and the easy workability of coating or application to the base material;

When using only the primary thermoplastic polyolefin elastomer resin alone, a sticky phenomenon occurs, workability is reduced, storage stability becomes unstable for the purpose of preventing this,

The secondary thermoplastic polyolefin elastomer resin having a melt index of 8.0 to 10 was mixed with the primary thermoplastic polyolefin elastomer resin, and the total melt index of the primary and secondary thermoplastic polyolefin elastomer resins was 1.5 to 4.0. 70 to 95% by weight of the polyolefin elastomer copolymer is used.

Furthermore, in the said composition, with respect to 100 weight part of said mixed compositions as needed,

Antimony oxide which is a flame retardant to which the flame retardant function of the surface treating agent composition of this invention is provided.

5 to 15 parts by weight of a (Sb 2 O 3) or Mg (OH) 2 type Magnesium Hydroxide, one selected from bromine series Ethylene bis-tetrabromophthalim, or one or more types of flame retardants may be added;

For the coloring of the surface treatment agent composition of the present invention, it can be composed of a surface treatment agent composition to which 0.5 to 5.0 parts by weight of black carbon black (Cabon black) or blue cyan blue (blue system) as a colorant is added. ,

In order to further enhance weather resistance and fouling resistance of the surface of the substrate, the surface treatment agent composition may be composed of an external coating surface treatment agent coated or coated on the outside of the composition. The composition of the surface treating agent for

20 to 30% by weight of the fluorine-acrylic resin and one or more selected from solvents such as methyl ethyl ketone (MEK) or dimethyl formamide (DMF) are composed of 70 to 80% by weight of a mixed solvent.

In addition, the surface treatment agent mixed composition of the present invention is configured in the form of a processed sheet processed in a processing machine, the processing sheet may be used for heating, bonding to the surface of the substrate,

The surface of the substrate, which is metal, plastic, glass, building interior and exterior materials, and tarpaulin, is further provided with a plurality of embossed (EMBOSS) surfaces, and the surface treatment agent or surface coating agent for the above-described composition and the surface treatment agent mixed composition are processed. The processed sheet processed in may be configured in a structure that facilitates bonding to the substrate.

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

Example 1 is a metal water tank spray-coated with the surface treatment composition of the present invention,

Example 2 is a metal water tank in which an external coating surface treatment agent is additionally spray coated on the outside of the surface treatment agent composition of Example 1,

Comparative Example 1 is a metal water tank bonded to a conventional waterproof sheet,

Comparative Example 2 is a metal water tank spray-coated with a conventional antifouling agent and a weathering agent for improving weather resistance.

(Example 1)

65% by weight of a primary TPE resin having a melt index of 0.6 by weight of 20% by weight of PP and 20% by weight of PE and 60% by weight of rubber, and 8.0 by weight of 10% by weight of PP and 30% by weight of PE and 60% by weight of rubber. 75 parts by weight of a thermoplastic polyolefin elastomer copolymer composed of 35% by weight of a phosphorus secondary TPE resin And;

23 parts by weight of talc as a filler, 1.0 part by weight of a bis sebaceate-based sunscreen, 0.5 part by weight of an antioxidant Phenol free processing Stabilizer, and 0.5 part by weight of a monoglyceride as an antistatic agent; Into the reactor, mixed for 10 minutes at 160 ℃ to produce a mixed composition;

Per 100 parts by weight of the mixed composition,

10 parts by weight of antimony oxide as a flame retardant, 0.2 parts by weight of antistatic agent, 0.3 parts by weight of UV stabilizer, 0.5 parts by weight of surfactant, 55 parts by weight of methanol as organic solvent and 5.0 parts by weight of water as solvent were mixed and mixed at 160 ° C. for 5 minutes. To prepare a surface treating composition of the present invention;

The surface treatment agent composition was spray-sprayed on the surface of the metal water tank to coat the surface treatment agent having a coating thickness of 0.035 mm on the surface of the water tank.

Example 2

On the outside of the surface treatment agent coating layer coated with the surface treatment agent on the surface of the metal water tank in the same manner as in Example 1,

The surface coating agent composition for external coating composed of 30% by weight of fluorine-acrylic resin and 70% by weight of methyl ethyl ketone (MEK) as a solvent was further coated with a coating film thickness of 0.025 mm.

(Comparative Example 1)

Metallic water tanks to which conventional waterproof sheets are bonded were obtained commercially.

(Comparative Example 2)

On the outside of the waterproof sheet of the metal water tank to which the waterproof sheet of Comparative Example 1 was bonded, the surface treating agent was coated with a thickness of 0.025 mm by spraying a commercially available antifouling agent for improving the weather resistance and weather resistance.

Test method and comparative properties results;

end. Watertightness Test (Crackability, Adhesiveness, Cold Resistance)

Using DGI's XP-2506D DIGITAL PRINTER, the cracking / adhesiveness / cold resistance was measured based on the original wind test method standard “WPS-06-03-101 aptitude test” to evaluate the watertightness performance. The values are listed in Table 1 and Table 2.

1) Crack generation (Crackability): Examples 1 and 2 and Comparative Example 2 after coating the surface treatment agent on the substrate, it was visually confirmed the presence of CRACK of the surface treatment layer in a dry state for 20 minutes, Comparative Example 2 The visual confirmation of the occurrence of CRACK of the waterproof sheet.

2) Adhesiveness: Examples 1 and 2 were coated with the surface treatment agent on the outside of the water tank as the base material, and then adhered and peeled to the surface treatment agent coating layer with a tape in a dry state for 20 minutes. Observed for damage,

Comparative Example 1 was observed whether the outside of the waterproof sheet bonded to the outside of the water tank as the base material, deformation, breakage,

In Comparative Example 2, it was observed whether the outer surface of the surface treatment agent layer coated on the waterproof sheet, deformation, breakage,

It was determined that the peeled area is less than 5% of the tape bonded area, A grade, 5-20% B grade, 20-40% C grade, and other defects.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2    Crack occurrence  Not occurring Not occurring  Occur Not occurring   Adhesive A A Bad C

As described above, in Examples 1 and 2 of the present invention, no crack was generated by the surface treating agent layer coated on the surface of the substrate, and it was found that the adhesiveness was very excellent.

In Comparative Example 1, the waterproof sheet bonded to the substrate was found to have a problem in use due to crack generation and the departure to the outside,

In addition, Comparative Example 2 also was not generated due to the coating of the surface treatment agent layer, it was found that there is a problem in use as the surface treatment agent layer is peeled to the outside.

3) Cold resistance test: In order to measure cold resistance, the test of Examples 1 and 2 and Comparative Examples 1 and 2 were carried out by the domestic KS standard "KS K-0766 cold resistance test method".

division Example 1 Example 2 Comparative Example 1 Comparative Example 2     -20 C    NO CRACK NO CRACK   CRACK    NO CRACK     -25 C    NO CRACK NO CRACK    CRACK    CRACK     -30 C    NO CRACK NO CRACK    CRACK    CRACK

As shown in Table 2, Examples 1 and 2 of the present invention were found to be excellent, and Comparative Examples 1 and 2 of the prior art were found to be poor because the crack is generated in the product.

As described above, as a result of judging watertightness by combining crackability / adhesiveness / cold resistance, Examples 1 and 2 of the present invention exhibited significantly better cracking / adhesiveness / cold resistance than Comparative Examples 1 and 2, thereby enhancing watertight performance. Proved to be

In Comparative Examples 1 and 2, cracking / adhesiveness / cold resistance were lowered, and it was found that there was a problem in use.

I. Weather resistance test

According to the original wind test method standard "WPS-06-03-102 weather resistance test method" to measure the deterioration of the product, after stabilizing the specimen in ATLAS UVCON TEST for 100 to 500 hours, the specimen is removed from the tester and the color phenomenon By using a colorimeter of the DATACOLOR SPECTRAFLASH SF600, a machine for measuring the dichroic phenomenon with the beginning.

ΔE is a color difference value, and the larger this value is, the larger the dichroic phenomenon with the first. The physical property results are shown in Table 3.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 100 HRS ΔE = 0.67 ΔE = 0.73 ΔE = 1.20 ΔE = 1.40 200 HRS ΔE = 1.08 ΔE = 1.22 ΔE = 1.58 ΔE = 1.78 300 HRS ΔE = 1.23 ΔE = 1.78 ΔE = 2.20 ΔE = 2.78 500 HRS ΔE = 1.89 ΔE = 2.10 ΔE = 3.20 ΔE = 3.98

As shown in Table 3, Examples 1 and 2 of the present invention were found to be all good, and the products of Comparative Examples 1 and 2 were found to be inferior in use over time.

Therefore, Examples 1 and 2 of the present invention were found to be the best.

All. Pollution resistance

The water tanks of Examples 1 and 2 and Comparative Examples 1 and 2 were installed on a rooftop in a 60 ° incline to the southeast, and the brightness (L * value) after 6 months was measured, and the difference from the initial brightness.

(-ΔL *) was determined as follows as an indicator of antifouling adhesion, and the results are shown in Table 4.

When -ΔL * is 0 to 3, A is 3 to 5, B is 5 to 8, C is 8 to 10, D is 10, and E is determined.

hemp. Workability: The workability was determined by bonding the surface treatment agent coating or waterproof sheet to the water tank described above, and the results are shown in Table 4.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2  Pollution resistance    1.2 / A 0.8 / A 24 / E    12 / E Workability Great Great Lowering Lowering

As shown in Table 4, Examples 1 and 2 of the present invention were found to be excellent in the adhesion to fouling A grade, Comparative Example 1 was found to be serious staining on the surface of the substrate, Comparative Example 2 also It has been found that staining occurs on the surface of the substrate.

In addition, Examples 1 and 2 are spray coating to improve the workability by being provided with a surface treatment layer on the outside of the substrate,

In Comparative Examples 1 and 2, it was found that workability is reduced by separately bonding the waterproof sheet to the outside of the water tank as the base material or by coating the surface treatment agent layer on the outside of the bonded waterproof sheet.

Claims (5)

In order to enhance the watertightness, weather resistance and antifouling property of the substrate made of metal or synthetic resin material, the surface treatment agent composition coated on the surface of the substrate is used. 10 to 30% by weight of polypropylene (PP), a thermoplastic polyolefin resin, and 15 to 25% by weight of polyethylene (PE), containing 55 to 65% by weight of rubber, 60 to 80% by weight of a primary thermoplastic polyolefin elastomer resin (TPE resin: Thermo Plastic Elastomer) having a melting flow rate of 0.5 to 0.7, a density of 0.85 to 0.95, and a hardness of 25 to 35 , 5 to 30% by weight of polypropylene (PP) and 15 to 30% by weight of polyethylene (PE) and 55 to 65% by weight of rubber are used for improving storage properties and workability of the primary thermoplastic polyolefin elastomer resin. , Thermoplastic polyolefin-based elastomer air with a melt flow rate of 8.0 to 10, a density of 0.85 to 0.95, and a hardness of 25 to 35 secondary thermoplastic polyolefin elastomer resin of 20 to 40 wt%. 70 to 95 parts by weight of coal; 4.5 to 28 parts by weight of talc or calcium carbonate (CaCO 3), which is a filler for filling; As an additive, the sunscreen Bis sebaceate series or Poly-tetra methyl 0.3 to 1.0 parts by weight of a butyl-Amino UV Stabilizer; 0.1 to 0.5 parts by weight of an phosphite & hydroxylamine-based Phenol free processing Stabilizer as an antioxidant; 0.1 to 0.5 parts by weight of an antistatic agent, Monoglyceride, a mixed composition is composed; Per 100 parts by weight of the mixed composition, 0.1 to 0.2 parts by weight of an antistatic agent, 0.1 to 0.3 parts by weight of a UV stabilizer, 0.1 to 0.5 parts by weight of a surfactant, 55 to 60 parts by weight of one organic solvent selected from methanol, ethanol, isopropanol and butanol, which are low or high boiling alcohols Wow, 5.0-10 parts by weight of solvent, water; Surface treatment composition characterized in that the composition. delete The method of claim 1, wherein based on 100 parts by weight of the mixed composition, Flame retardant is 5 to 15 parts by weight of antimony oxide (Sb2O3) or Mg (OH) 2 series of Magnesium Hydroxide, bromine-based Ethylene bis-tetrabromophthalim, or one or more types of flame retardants are added. Surface treatment agent composition. The method of claim 1, wherein based on 100 parts by weight of the mixed composition, Surface treatment agent composition characterized in that 0.5 to 5.0 parts by weight of carbon black of the black system (Cabon black) or blue system (Cyan blue) as a colorant is added. The processed sheet using a surface treating agent composition according to claim 1, wherein the mixed composition is heated and bonded to the surface of the substrate in the form of a processed sheet processed by a processing machine.