KR101453367B1 - Production method of non plasticizer polypropylene modified compound resin coated industrial fabrics - Google Patents

Abstract

The present invention relates to a production method of industrial fabric products coated with a non-plasticizer polypropylene modified compound composition. More particularly, a production method of industrial fabric products coated with a polypropylene modified compound composition comprising a step of first coating or dipping a liquid type aqueous polyolefin dispersion resin on both sides of a polypropylene fabric; and a step of second coating a polypropylene modified compound composition on both sides of the polypropylene fabric coated or dipped firstly. The polypropylene modified compound composition comprises 20 to 150 parts by weight of a polypropylene-based modified elastomer, 0.1 to 50 parts by weight of a polystyrene-based modified elastomer, 0.1 to 30 parts by weight of an inorganic filler, 0.1 to 1.0 parts by weight of an antioxidant, 0.1 to 2.0 parts by weight of a UV absorber, 0.1 to 3.0 parts by weight of a process lubricant, and 0.1 to 15 parts by weight of a coloring agent with respect to 100 parts by weight of a polypropylene resin. The industrial fabric products produced according to the present invention is non-toxic and economic and has excellent processability, durability, weather resistance and weight lightening.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for producing an industrial fiber product coated with a non-plasticizer polypropylene modified compound composition,

The present invention relates to a process for the manufacture of industrial textile products coated with a non-plasticizer polypropylene modified compound composition.

Recently, European Union, US and Commonwealth countries have been tightening regulations on the use of polyvinyl chloride (PVC). As a result, countries around the world have tried to develop various resins replacing polyvinyl chloride, No resins have been developed that are comparable to polyvinyl chloride in terms of processability and economy.

Polymer coating Industrial textile products are generally manufactured by coating polyvinyl chloride resin or thermoplastic polyurethane (TPU) resin on polyester fabric, but industrial textile products manufactured by coating polyvinyl chloride resin on polyester fabric There is a serious problem that dioxin and toxic gas are generated when incineration of waste is incinerated due to the high recycling cost due to difficulty in separating polyvinyl chloride resin and polyester fabric as a coating material when used after disposal. The regulation of harmful substances of environmental hormones due to the phthalate plasticizer is strengthened.

In addition, industrial textile products manufactured by coating TPU resin on polyester fabric can not be applied to calendering method or sol coating method used for polyvinyl chloride in processability, and can be produced only by extrusion T-Dies method The TPU resin, which is a coating material, is poor in economical efficiency. Also, since it is difficult to separate the TPU resin and the polyester fabric as the coating material, the recycling cost is high and the incineration is discarded. There is a serious problem of generating hydrogen cyanide and toxic gas. In addition, industrial textile products manufactured by coating polyvinyl chloride resin or TPU resin on a polyester fabric are troublesome to be subjected to a lamination process using an adhesive.

Korean Patent Publication No. 2010-0076091 (Jul. 2010)

It is an object of the present invention to provide a process for producing an industrial textile product in which a polypropylene fabric is coated with a polypropylene modifying compound composition in place of polyvinyl chloride (PVC) resin or polyurethane (TPU) resin.

In order to achieve the above object, the present invention provides a method for producing a polypropylene fabric, comprising the steps of: first coating or dipping a liquid type polyolefin dispersion resin on both sides of a polypropylene fabric; Wherein the polypropylene modified compound composition comprises 20 to 150 parts by weight of a polypropylene modified elastomer, 20 to 100 parts by weight of a polystyrene type modified elastomer, 0.1 to 50 parts by weight of an inorganic filler 0.1 By weight of an antioxidant, 0.1 to 1.0 part by weight of an antioxidant, 0.1 to 2.0 parts by weight of a UV absorber, 0.1 to 3.0 parts by weight of a working lubricant and 0.1 to 15 parts by weight of a colorant. And a manufacturing method thereof.

First, the present invention can be applied to both the calendering method and the extrusion T-dies method by using the polypropylene modified coating compound composition in the production of the fiber product for the polymer coating industry, thereby exhibiting an excellent processability.

Secondly, the present invention uses a water-based polyolefin dispersion resin which does not contain toxic gases such as dioxins and hydrogen cyanide when incinerated and does not contain an organic solvent for adhesion, so that a volatile organic compound (VOC) And the polypropylene fabric and coating material used for the core are the same material and can be recycled to 100%. The phthalate plasticizer, which is an environmental hormone regulating substance harmful to the human body, is not used at all, .

Third, the present invention exhibits excellent physical properties in terms of durability and weather resistance as compared with conventional polyvinyl chloride industrial textile products obtained by coating polyvinyl chloride on polyester fibers.

Fourth, since the present invention does not use a phthalate plasticizer which is an environmental hormone regulating substance, it can be used in a large container for transporting liquid food such as a drinking water tank (for example, a milk tank), a salt flooring mat, Polymer coated with various kinds of materials such as fabrics. It has excellent effect of preventing pollution caused by migration of pigments in the construction of industrial textile products.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows an extrusion resin compound manufacturing system for producing a pelletized polypropylene modified compound composition,
Figure 2 shows a transfer mesh for the manufacture of textile products for the polymer coating industry,
Figure 3 shows a calender dipping process for the manufacture of textile products for the polymer coating industry,
Figure 4 shows an extrusion T-Dies direct coating method for the manufacture of textile products for the polymer coating industry.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art. But does not mean that the technical idea and scope of the present invention are limited.

The polypropylene fabric used as the core according to the present invention is characterized in that the monofilament strength produced by the melt spinning method is in the range of 6.7 to 6.7 twist multiplier (TM) using polypropylene monofilaments of 6.2 gf / d to 8.0 gf / 20 weft yarns having a weaving density of 15 to 40 per 1 inch of warp and 15 to 40 per 1 inch of weft using a polypropylene multifilament yarn of 400 to 1,500 denier.

If the monofilament strength of the polypropylene monofilament used to weave the polypropylene fabric is less than 6.2 gf / d, the tensile strength and tear strength of the industrial textile product coated with the non-plasticizing polypropylene modified compound composition to be embodied in the present invention And the product value is lowered. If it exceeds 8.0 gf / d, it may cause a problem that it is not produced for general use.

The polypropylene multifilament yarn used to weave the polypropylene fabric must use a twist yarn of not more than TM 20, because the water-based polyolefin dispersion resin that is coated first must be partially melted and penetrated between the fibers, However, in the case of non-spinning, since the water-based polyolefin dispersed resin or the polypropylene modified compound composition is not well penetrated, the adhesion of the industrial fiber product coated with the non-plasticizer polypropylene modified compound composition to be realized in the present invention is deteriorated . The degree of twisting is preferably not more than 20, but if it is more than 20, there is a problem that the coating amount of the polypropylene modified compound resin, which is coated with the second surface of the woven fabric, has to be increased.

The polypropylene multifilament yarn used for weaving the polypropylene fabric should have a fineness of 400 to 1,500 denier. When the yarn size is less than 400 denier, the fineness of the fineness is low. Therefore, the polypropylene multifilament yarn of the industrial textile product coated with the non- Tensile strength and tear strength are low, which is unsuitable for use in polymer coating industrial textile products. Exceeding 1,500 deniers degrades the surface smoothness of fabrics and results in poor appearance of industrial textile products coated with a non-plasticizing polypropylene modified compound composition. Especially, in the polymer coating industrial textile products, 1,000 denier multifilament yarns are used in many cases, and this is a standard product, which is economical because of its physical properties and low cost.

The weaving density when weaving the polypropylene fabric is a plain weave fabric having a weaving density of 15 to 40 weft per inch and 15 to 40 weft per inch of weft, since the weft density of weft and warp is less than 15 per inch There is a problem in that the physical properties such as tensile strength and tearing strength of the industrial textile products coated with the plasticizer-free modified polypropylene composition are lowered, and when it exceeds 40 per 1 inch, there is a problem that the industrial polypropylene- The weft density of the fabric for industrial textile products coated with the plasticizer-free modified polypropylene composition to be embodied in the present invention is 15 to 40 per 1 slope, 15 to 40 per 1 inch of weft, Plain weave fabrics with a weaving density of 40 are most preferred.

The water-based polyolefin dispersion resin used in the present invention is an acid-modified olefin resin such as ethylene polymer, propylene polymer, ethylene propylene copolymer and propylene ethylene butene polymer-modified olefin resin, 0.5 to 5.0 parts by weight of an incrementing agent is added to 100 parts by weight of the resin, and the viscosity is adjusted to 500 cps to 3,000 cps at room temperature.

The water-based polyolefin-dispersed resin can be applied to both sides of a polypropylene fabric by either a coating method or a dipping method. There are two coating methods depending on the coating process equipment, that is, a mesh roll method and a knife method. The method is divided into Transfer Mesh Roll method and Air Mesh Roll method.

In this case, the viscosity of the aqueous polyolefin dispersion resin used in the transfer mesh roll method used in the coating method should be 800 cps to 1,000 cps at room temperature. If the viscosity is less than 800 cps in the coating process, the aqueous polyolefin dispersion resin coated on both sides of the polypropylene fabric, The penetration is so great that the softness of the industrial fiber product deteriorates and the flow of the coating resin is high, causing a phenomenon of flowing down to the surface of the polypropylene fabric, which causes defects. In addition, when it is higher than 1,000 cps, the amount of the resin penetrating between the fibers is too small to lower the adhesive strength and the coating load is increased, so that it is difficult to uniformly coat and the coating amount increases. On the other hand, in the case of Knife coating method, it is preferable that the coating viscosity is 2,000 cps to 3,000 cps at room temperature. However, not only the two-side coating can be performed at the same time through one step but also the water-based polyolefin dispersion resin is difficult to increase, Which adversely affects the physical properties of the waterborne polyolefin-dispersed resin, and the stability of maintaining the viscosity is lowered, which is not preferable.

The dipping method is preferably such that the viscosity of the aqueous polyolefin dispersion resin is from 500 cps to 800 cps at room temperature, and this method is particularly suitable when the industrial textile product to be embodied in the present invention is made of a woven fabric such as a boat, air mattress, water tank, The water-based polyolefin dispersed resin functions as a water-repellent function even if the water-repellent treatment is not performed separately.

The polypropylene modified compound composition according to the present invention comprises 20 to 150 parts by weight of a polypropylene-modified elastomer, 20 to 100 parts by weight of a polystyrene-modified elastomer, 0.1 to 30 parts by weight of an inorganic filler, 0.1 to 1.0 part by weight of a UV absorber, 0.1 to 2.0 parts by weight of a UV absorber, 0.1 to 3.0 parts by weight of a working lubricant and 0.1 to 15 parts by weight of a colorant, wherein the polypropylene modified compound composition is secondarily coated on both sides of the polypropylene fabric, Products can be manufactured.

The polypropylene resin may be selected from general homo polypropylene (General Homo PP), high crystal polypropylene copolymer (HCCP Homo PP), high crystal block polypropylene copolymer (HCCP Block Copolymer PP), random copolypropylene ) And butyl tertiary polypropylene terpolymer (tert-PP), and the polypropylene type resin has a melt index (MI) (230 DEG C / 2.16 Kg, ASTM D1238) (230 占 폚 / 2.16 Kg, ASTM D1238) of 7 g / 10 min to 30 g / 10 min by using a resin having a density of 1.0 g / 10 min to 5.0 g / 10 min. According to the present invention, since both the calendering method and the extrusion T-dies method can be applied, an industrial fiber product having excellent workability can be manufactured.

The polypropylene resin has a flexural modulus (ASTM D790, kg / cm2) of 6,500 to 11,000 kg / cm2, a melting point (ASTM D3418, , And the elongation percentage (ASTM D638,%) is preferably 500% or less.

The industrial textile product coated with modified polypropylene is manufactured by the calendering method when the coating thickness of the polypropylene modified compound composition exceeds 0.2 mm on one side. If the melt index is 3 or more, the flowability is too high Modified Polypropylene Coating As the sagging phenomenon occurs in the production of sheets for industrial textile products, it is difficult to apply the calendering process. In the extrusion T-Dies method, the coating thickness of the polypropylene modified compound composition is 0.05 mm to 1.0 mm , The melt flow index of 20 or less results in a poor load on the extruder, a large load on the extruder, and a heavy thickness variation between the center and both sides of the industrial fiber product coated with the modified polypropylene due to the heavy Neck In. It may be difficult to produce in a wide range. In order to overcome this problem, both side cutting widths must be widened, which leads to a disadvantage that the loss increases. If the melt index is more than 30, it is difficult to apply the extrusion T-Dies method because it is necessary to increase the extrusion speed because the flowability is so fast that it is difficult to produce a product having a minimum coating thickness of 0.1 mm or more on a one- And the interfacial bonding speed between the fabrics is too fast, so that the adhesive strength may be lowered.

The flexural modulus of elasticity is closely related to flexibility. If less than 6,500 kg / ㎠, the restoring force against external stress is lowered. If it exceeds 11,000 kg / ㎠, the softness of the modified polypropylene coated industrial textile product deteriorates, It is necessary to use a large amount of resin which gives flexibility when determining a coating compound composition. This may increase the unit cost of the compound composition, deteriorate the physical properties of the composition and deteriorate the adhesive strength.

When the melting point is lower than 130 캜, the thermal stability of industrial textile products such as polypropylene tarpaulin is lowered. When the temperature exceeds 160 캜, a problem arises that a high processing temperature is required in the production of a sheet of a polypropylene modified compound composition .

In the case of the softening point, when the temperature is lower than 110 ° C, the perviousness of the heat-resistant synthetic fiber product coated with the modified polypropylene deteriorates. In the case of the embossed tarpaulin, the emboss pattern sharpness deteriorates. Since it requires a high processing temperature, it may cause a lot of load on the machine.

When the elongation percentage exceeds 500%, thermal shrinkage easily occurs, so that the thermal dimensional stability of the modified polypropylene-coated industrial textile product may be deteriorated.

The properties of such a polypropylene resin affect the thermal stability and flexural strength of the final product, and the extrusion process can be applied when manufacturing a compound composition for producing industrial textile products coated with modified polypropylene.

The polypropylene-based modified elastomer resin may be a polypropylene-ethylene copolymer plastomer (m-PEPP), a polypropylene-octene copolymer plastomer (m-POPP), a polypropylene-hexene- -PHPP), a polypropylene butene copolymer plastomer (m-PBPP), and a polyolefin block copolymer. Such a polypropylene-based modified elastomer may contain an industrial fiber product such as polypropylene tarpaulin It enhances the elasticity and cold resistance of the coating layer compound composition in the constituting layers and is excellent in compatibility with polypropylene resin.

When the polypropylene-based modified elastomer resin is produced by the calendering method, a resin having an MI (Melt Index) (230 DEG C / 2.16 Kg, ASTM D1238, g / 10 min) (ASTM D2240, Shore A) is from 60 to 80, and when it is manufactured by the Dies method, a resin having an MI (Melt Index) (230 DEG C / 2.16 Kg, ASTM D1238, g / , And the total crystallinity is 20% or less.

If the hardness is less than 60, the tensile strength and tear strength of the composite composition deteriorate. If the hardness exceeds 80, the softness of the compound composition is lowered, and the final product, the polypropylene modified compound coating industrial textile product, becomes stiff. If the total crystallinity exceeds 20, the elasticity and the cold resistance are adversely affected, and the adhesion between the polyester fabric used as the core and the compound composition may be deteriorated.

The polystyrene type modified elastomer may be at least one selected from the group consisting of polystyrene butadiene copolymer (SBS), polystyrene isoprene copolymer (SIS), polystyrene ethylene butadiene block copolymer (SEBS), polystyrene ethylene propylene block copolymer (SEPS), hydrogenated polystyrene ethylene butadiene elastomer ), Which improves the tensile properties, tearing resistance, flexibility and flexural strength of industrial textile products coated with the compound composition.

The polystyrene-modified elastomer is a high-elasticity elastomer having a tensile strength exceeding 3,000 kgf / cm ² and a breaking point elongation of 800% to 1,500%. When the elastomer is contained in an amount exceeding 100 parts by weight, The dimensional stability of the fiber product is reduced, and the behavior of the rubber is similar to that of the rubber, which makes secondary processing difficult and causes cost increase.

The inorganic filler is at least one selected from the group consisting of calcium carbonate, talc, clay, magnesite, aluminum hydroxide, and magnesium hydroxide. When the amount is more than 30 parts by weight, choke marks are more likely to occur and the specific gravity is increased, which may hinder lightness, which is characteristic of polypropylene-modified compound coating industrial textile products.

The antioxidant may be at least one selected from the group consisting of 1,1,1-tris (2-methyl-4-hydroxy-5-tertiary-butylphenyl) butane, 1,3,5- (3'5'-di-tertiary-butyl-4-hydroxyphenyl) propynate], bis [3 , 3'-bis- (4'-hydroxy-3'-tertiary-butylphenyl) butylic acid] glycol ester, 1,3,5-tris (3 ', 5'- 4'hydroxybenzyl) -SEC-triazine-2,4,6-trione, 3,5-di-tertiary-butyl-4-hydroxyhydrocinnamate octadecyl, tris (2,4- (2,4-di-tert-butylphenyl) phosphate, cyclene neopentanetetraylbis (2,4-di-tert-butylphenyl) phosphate and 1,2- Hydrosinemole) hydrazine, which antioxidants are selected from the group consisting of a coating of a polypropylene modified compound coating industrial textile product To serve to prevent aging, even if it exceeds 1.0 parts by weight does not effect an increase it is not necessary to use more than 1.0 parts by weight.

The UV absorber may be selected from the group consisting of benzophenone, phenyl silicate, bis (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 2- (3'-5'-di-tertiary- 2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-tert-butylphenyl-2-hydroxyphenyl) benzotriazole, 2- (2'- ) Benzotriazole, 2- (3'-tertiary-butyl-2'-hydroxy-5'-methylphenyl) -5-chlorobenzotriazole and a hindered amine-based ultraviolet stabilizer The polypropylene compound composition for fiber coating is stabilized by blocking the change of physical properties from ultraviolet rays to prevent discoloration and aging, thereby improving weather resistance and light resistance.

The working lubricant comprises at least one selected from the group consisting of zinc stearate, oleamide, erucamide, stearamide, behenamide, fatty acid amine and fluorine resin. When the amount exceeds 3.0 parts by weight, The coating layer adhesion of the compound coating industrial textile product may be reduced.

Because these processing lubricants lower the coefficient of friction between the extruder cylinders and the screw and compound composition, they provide smooth extrusion during the extrusion process and prevent the remnants of the composition from remaining in the cylinder and screw, It is possible to reduce the rate of surface defects of the coating layer of the modified textile-coated industrial textile product. In addition, when the polypropylene-modified compound sheet is produced by using the calender process, it serves as a processing aid for imparting releasability from the calendar.

To prepare the polypropylene modified compound coating industrial fiber product, the polypropylene modified compound composition was first kneaded using a kneader or a blender as shown in FIG. 1, and the first kneaded composition was extruded into an extruder The extrusion conditions are as follows.

Hopper temperature: room temperature

Cylinder temperature: 140 캜 to 170 캜

Die temperature: 180 DEG C to 210 DEG C

Single screw type extruder: L / D = 36/1 or more

Twin screw type extruder: L / D = 26/1 or more

The composition extruded under the extrusion conditions is subjected to a water-cooling process, cut into pellets, and subjected to an oil-water separation process, followed by drying and storage.

In the case of primary coating of a polypropylene fabric using an aqueous polyolefin dispersion resin, there are a transfer mesh roll method and a dipping method. As shown in FIG. 2, the transfer mesh roll method is a method in which a liquid polyolefin dispersion resin in a liquid state is dried on a polypropylene fabric and coated on both sides with 100 g / m 2 to 120 g / m 2 on a weight basis, The dried hot air is passed through a drying chamber and dried to remove moisture completely. At this time, the hot-air drying chamber must be fixed by clips on both sides of the fabric in order to prevent thermal deformation of the fabric. If moisture is not completely removed, it will adversely affect adhesion. As shown in FIG. 3, the dipping method is a step of squeezing a water-based polyolefin dispersion resin dipped through a mangling process and taking a necessary amount of the resin, thereby determining an amount of the mangle taken as a pressure. This method is also applied to both sides of 100 g / m 2 to 120 g / m 2 on a weight basis after drying, and then passed through a hot air drying chamber maintained at a temperature of 120 ° C to 150 ° C to dry completely to remove moisture. The water-based polyolefin dispersion resin was coated on both sides of the polypropylene fabric by Transfer Mesh Roll or Dipping method, and then laminated through an embossing roll while passing between an IR heating chamber (180 ± 5 ° C.) and an IR heating drum (190 ± 5 ° C.) Modified polypropylene coated industrial textile products are manufactured. Embossed lamination rolls consist of steel cooling rolls and silicone or rubber cooling rolls and also perform embossing. The working pressure is preferably 5 kgf / cm 2 or more, and the larger the diameter of the roll, the more favorable the adhesion.

The coating of the polypropylene modified compound composition is possible by the calendering method and the extruding T-Dies method. 2, the pelletized polypropylene modified compound composition is mixed and melted at 150 to 170 DEG C for about 10 minutes with a kneader and then heated to 180 DEG C to 5 DEG C for 5 minutes in a two- Mix the compound after removing the foreign substance through the strainer process (190 ± 5 ℃) and heat it up to 200 ± 5 ℃ through 2 rolls and put it into the calender. The calenders used are 4 roll calenders and 1 and 2 rolls are 210 The sheet was worked to a required thickness at 180 ° C to 200 ° C for the third roll and 160 ° C to 170 ° C for the fourth roll at a temperature of from 230 ° C to 230 ° C to allow the sheet to pass through the emboss roll and the cooling roll to obtain a polypropylene modified compound composition The temperature of the first roll and the second roll of the calender is determined according to the shape of the bank formed by the compound composition, but the shape of the bank is formed in a regular half-moon shape of forward and backward symmetry. Adjusted to reduce the out (Plate-out) phenomenon - that the plate of the seat to be produced is.

4, a pellet-type polypropylene modified compound composition is fed into an extruder through an extruder hopper to adjust the cylinder temperature of the extruder to 180 to 200 DEG C and the adapter temperature to 250 to 260 DEG C Lt; RTI ID = 0.0 > 280 C < / RTI > to < RTI ID = 0.0 > 310 C < / RTI > All of the lamination rolls are in the form of cooling rolls and serve as a polishing function on the coated surface to serve as smoothness and surface embossing of the coated surface. Lamination pressure bonding is preferably 3.5 Kgf / cm < 2 >

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the following examples. However, the following examples are intended to illustrate the contents of the present invention, but the scope of the present invention is not limited to the following examples. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

Example 1 Preparation of Polypropylene Modified Compound Composition

, 130 parts by weight of a polyethylene propylene copolymer plastomer (Action V-6102), 20 parts by weight of a polystyrene-butadiene copolymer (Kumho Petrochemical KTR602), 100 parts by weight of calcium carbonate , 0.4 part by weight of pentaerythritol tetrakis (3- (3,5-di-t-butyl-4-hydroxyphenylpropionate) (Ciba I # 1010) D # 944), 1.0 part by weight of stearamide and 10 parts by weight of a colorant were prepared.

Example 2 Production of Polypropylene Modified Compound Composition

100 parts by weight of polypropylene ethylene copolymerized plastomer (Mitui DF640), 50 parts by weight of polystyrene ethylene propylene block copolymer (Kuraray SEPS), 13 parts by weight of calcium carbonate (Omiya M5), 100 parts by weight of polypropylene 0.5 part by weight of pentaerythritol tetrakis (3- (3,5-di-t-butyl-4-hydroxyphenylpropionate), 0.75 part by weight of hindered amine, 0.75 part by weight of zinc stearate and 10 parts by weight of a colorant To prepare a polypropylene modified compound composition.

Example 3 Production of Polypropylene Modified Compound Composition

100 parts by weight of polypropylene (Lotte Petrochemical, L270A), 130 parts by weight of polypropylene ethylene copolymerized plastomer (Dow V4200), 20 parts by weight of polystyrene ethylene propylene block copolymer (Kuraray SEPS), 13 parts by weight of calcium carbonate (Omiya M5) 0.5 part by weight of pentaerythritol tetrakis (3- (3,5-di-tert-butyl-4-hydroxyphenylpropionate), 0.75 part by weight of hindered amine, 2 parts by weight of fatty acid amine, And 10 parts by weight of a colorant were prepared.

Example 4 Preparation of Polypropylene Modified Compound Composition

150 parts by weight of polypropylene ethylene copolymerized plastomer (Dow V4200), 15 parts by weight of calcium carbonate (Omiya M5), 100 parts by weight of pentaerythritol tetrakis (3- (3 , 0.5 part by weight of 5-di-tert-butyl-4-hydroxyphenylpropinate), 0.75 part by weight of hindered amine, 2 parts by weight of fatty acid amine, 0.5 part by weight of a fluororesin and 10 parts by weight of a colorant A compound composition was prepared.

Example 5 Production of Polypropylene Modified Compound Composition

120 parts by weight of a polyolefin bloc polymer (Dow I 9807), 30 parts by weight of a polystyrene ethylene propylene block copolymer (Kuraray SEPS), 15 parts by weight of calcium carbonate (Omiya M5), 100 parts by weight of a polypropylene (Lotte Petrochemical L670M) 0.5 part by weight of pentaerythritol tetrakis (3- (3,5-di-tert-butyl-4-hydroxyphenylpropionate), 0.75 part by weight of hindered amine, 2 parts by weight of fatty acid amine, And 10 parts by weight of a colorant were prepared.

Example 6 Production of Polypropylene Modified Compound Composition

150 parts by weight of polypropylene ethylene copolymerized plastomer (Dow V4200), 15 parts by weight of calcium carbonate (Omiya M5), 100 parts by weight of pentaerythritol tetrakis (3- (3 , 0.5 part by weight of 5-di-tert-butyl-4-hydroxyphenylpropinate), 0.75 part by weight of hindered amine, 2 parts by weight of fatty acid amine, 0.5 part by weight of a fluororesin and 10 parts by weight of a colorant A compound composition was prepared.

EXPERIMENTAL EXAMPLE 1 Measurement of Physical Properties of Polypropylene Modified Compound Composition

The physical properties of the polypropylene modified compound compositions prepared in Examples 1 to 6 were measured as follows, and the results are shown in Table 1 below.

Example 1
Example 2 Example 3 Example 4 Example 5 Example 6 Melt Index
(Melt Index, 230 DEG C / 2.16 kg,
ASTM D1238, g / min) 5.6 4.3 25 26 21 26 Hardness
(ASTM D, Shore A) 90 95 95 93 90 93 importance
0.92 0.91 0.91 0.91 0.91 0.91 Melting point
(ASTM D2117, 占 폚) 115 108 118 108 130 108 Softening point
(ASTM D1525, 占 폚) 95 90 94 102 115 102 The tensile strength
(ASTM D638, kg / cm2) 190 182 160 220 160 220 Elongation
(ASTM D638,%) 700 700 680 710 950 710 Flexural modulus
(ASTM D790, kg / cm2) 3,800 3,000 4,100 4,000 3,400 4,000 Light resistance
(UV, grade) 4 4 4 4 4 4 Abrasion resistance
(Taber 1.5 kg, g / 500 times) 12 11 11 12 12 12

Example 7 Production of Polypropylene Coated Industrial Textile Product

(Acrysol RM820) was added to 100 parts by weight of an aqueous polypropylene ethylene butene polymer (DOW 9105) on both sides of the polypropylene fabric, and the viscosity was 1,000 cps at room temperature After coating the prepared water dispersion resin, the polypropylene compound composition of Example 1 was coated by a calendar method or an extrusion method to prepare a polypropylene coated industrial textile product. The specific production conditions are shown in Table 3 below. At this time, for comparison, a PVC coated product was also manufactured.

Inspection items unit Polypropylene fabric Polyester fabric Remarks Fabric width mm 2,400 2,400 - Fabric weight g / m ² 175 178 - Fabric thickness mm 0.45 0.31 - Fabric density Number of inches / inch 20 * 20 P 20 * 20 P - Fabric fineness d 1,000 1,000 Textile shrinkage %  2 * 1  2 * 1 Warp * weft, 100 ℃ * 15min

Item unit Polypropylene 1 Polypropylene 2 PVC Fabric weight g / m ² 175 175 178 Fabric thickness mm 0.31 0.31 0.31 Primary coating weight g / m ² 100
(Water-based polyolefin) - 120 (Sol adhesive) Second coating weight g / m ² 280
(Modified polypropylene compound) 280
(Modified polypropylene compound) 372
(PVC compound) Second coating thickness
(Front * rear) mm 0.15 * 0.15 0.15 * 0.15 0.15 * 0.15 Product Total weight g / m ² 555 455 670 Product thickness mm 0.6 ± 0.01 0.6 ± 0.01 0.6 ± 0.01

Example 8 Production of Polypropylene Coated Industrial Textile Product

Except that 2.0 parts by weight of an increasing agent was added to 100 parts by weight of an aqueous polypropylene ethylene butene polymer and a water dispersion resin having a viscosity of 2,500 cps at room temperature was used and the polypropylene compound composition of Example 2 was used. . ≪ / RTI >

Example 9 Production of Polypropylene Coated Industrial Textile Product

Was prepared in the same manner as in Example 7, except that the polypropylene compound composition of Example 3 was used.

Example 10 Production of Polypropylene Coated Industrial Textile Product

Was prepared in the same manner as in Example 8, except that the polypropylene compound composition of Example 4 was used.

Example 11 Production of Polypropylene Coated Industrial Textile Product

The procedure of Example 6 was repeated except that the polypropylene compound composition of Example 5 was used.

Example 12 Production of Polypropylene Coated Industrial Textile Product

Was prepared in the same manner as in Example 6, except that the polypropylene compound composition of Example 6 was used.

<Experimental Example 2> Measurement of physical properties of polypropylene-coated industrial textile products

The physical properties of the polypropylene-coated industrial textile products prepared in Examples 7 to 11 were measured as follows, and the results are shown in Table 4 below.

Properties
Test method
unit
result Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 PVC Total weight - g / ㎡ 553 556 555 552 450 453 670 thickness - mm 0.61 0.61 0.61 0.61 0.61 0.61 0.6 The tensile strength
(cutstrip method) KS K 0521 kgf /
5cm 260 * 235 260 * 235 270 * 240 265 * 235 265 * 235 265 * 235 270 * 240 Cutting strength
(singletongue method) KS K 0536 kgf 15 * 15 15 * 15 18 * 18 18 * 18 18 * 18 18 * 18 20 * 15 HF Adhesion
(High frequency) KS K 0521 kgf /
5cm 12 * 12 11 * 11 10 * 10 10 * 10 10 * 10 10 * 10 7 Abrasion resistance
(Taber 1.5 kg, 500 times) - g 12 11 11 12 12 12 12 Flex Cracking 15,000 cycles - No Crack No Crack No Crack No Crack No Crack No Crack No Crack

※ Tensile strength, cutting strength is warp * Weft.

Therefore, the modified polypropylene compound coating industrial textile product using the fabric woven with the polypropylene multifilament yarn according to the present invention can be used for the production of a polymer-coated industrial textile product, Sufficient physical properties were realized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that such detail is solved by the person skilled in the art without departing from the scope of the invention. will be. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (11)

A step of first coating or dipping a liquid type polyolefin dispersion resin of liquid type on both sides of a polypropylene fabric; And secondarily coating a polypropylene modified compound composition on both sides of the primary coated or dipped polypropylene fabric,
Wherein the polypropylene modified compound composition comprises 20 to 150 parts by weight of a polypropylene modified elastomer, 0.1 to 50 parts by weight of a polystyrene modified elastomer, 0.1 to 30 parts by weight of an inorganic filler, 0.1 to 1.0 parts by weight of an antioxidant, 0.1 to 2.0 parts by weight of a UV absorber, 0.1 to 3.0 parts by weight of a working lubricant and 0.1 to 15 parts by weight of a colorant.
The method according to claim 1,
Wherein said polypropylene fabric is made by weaving polypropylene flexible multifilaments of 400 denier to 1,500 denier in plain weave with a weaving density of 15 to 40 inclusions per inch and wefts of 15 to 40 per inch. &Lt; / RTI &gt;
The method of claim 2,
Wherein said polypropylene fabric is a polypropylene denatured coating industrial textile product characterized in that a yarn strength produced by a melt spinning method is co-twisted to less than TM 20 using polypropylene monofilaments of from 6.2 gf / d to 8.0 gf / d Gt;
The method according to claim 1,
The aqueous polyolefin dispersion resin is prepared by adding 0.5 to 5.0 parts by weight of an increasing agent to 100 parts by weight of a resin obtained by hydrating an acid modified olefin resin, and adjusting the viscosity to 500 cps to 3,000 cps at room temperature. The olefin resin is an ethylene polymer, Wherein the polypropylene denatured coating is one selected from the group consisting of polymer, ethylene propylene copolymer and propylene ethylene butene polymer.
The method according to claim 1,
The polypropylene resin may be selected from general homo polypropylene (General Homo PP), high crystal polypropylene copolymer (HCCP Homo PP), high crystal block polypropylene copolymer (HCCP Block Copolymer PP), random copolypropylene ) And butyl tertiary polypropylene terpolymer (tert-PP). &Lt; RTI ID = 0.0 &gt; 11. &lt; / RTI &gt;
The method according to claim 1,
The polypropylene-based modified elastomer is preferably a polypropylene-ethylene copolymer plastomer (m-PEPP), a polypropylene octene copolymer plastomer (m-POPP), a polypropylene hexene copolymer plastomer (m- Plastomer (m-PBPP), and polyolefin block copolymer. &Lt; Desc / Clms Page number 20 &gt;
The method according to claim 1,
The polystyrene type modified elastomer may be at least one selected from the group consisting of polystyrene butadiene copolymer (SBS), polystyrene isoprene copolymer (SIS), polystyrene ethylene butadiene block copolymer (SEBS), polystyrene ethylene propylene block copolymer (SEPS), hydrogenated polystyrene ethylene butadiene elastomer ). &Lt; / RTI &gt; The method of claim 1,
The method according to claim 1,
Wherein the inorganic filler is one selected from the group consisting of calcium carbonate, talc, clay, magnesite, aluminum hydroxide, magnesium hydroxide, and the like.
The method according to claim 1,
The antioxidant may be at least one selected from the group consisting of 1,1,1-tris (2-methyl-4-hydroxy-5-tertiary-butylphenyl) butane, 1,3,5- (3'5'-di-tertiary-butyl-4-hydroxyphenyl) propynate], bis [3 , 3'-bis- (4'-hydroxy-3'-tertiary-butylphenyl) butylic acid] glycol ester, 1,3,5-tris (3 ', 5'- 4'hydroxybenzyl) -SEC-triazine-2,4,6-trione, 3,5-di-tertiary-butyl-4-hydroxyhydrocinnamate octadecyl, tris (2,4- (2,4-di-tert-butylphenyl) phosphate, cyclene neopentanetetraylbis (2,4-di-tert-butylphenyl) phosphate and 1,2- Hydrosinemole) hydrazine. &Lt; RTI ID = 0.0 &gt; 11. &lt; / RTI &gt;
The method according to claim 1,
The UV absorber may be selected from the group consisting of benzophenone, phenyl silicate, bis (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 2- (3'-5'-di-tertiary- 2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-tert-butylphenyl-2-hydroxyphenyl) benzotriazole, 2- (2'- ) Benzotriazole, 2- (3'-tertiary-butyl-2'-hydroxy-5'-methylphenyl) -5-chlorobenzotriazole and a hindered amine type ultraviolet stabilizer &Lt; / RTI &gt; modified polypropylene modified coating.
The method according to claim 1,
Wherein the working lubricant is at least one selected from the group consisting of zinc stearate, oleamide, erucamide, stearamide, behenamide, fatty acid amine and fluororesin.

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