KR101621355B1 - Polymer Composition for Immersion And Lining Materials Having the Same for Repairing Sewer Tubes - Google Patents

Abstract

The present invention relates to a polymer composition for impregnation, which comprises 1-50 wt% of a filler and 50-99 wt% of a polymer binder, wherein the polymer binder comprises 40-98 wt% of unsaturated polyester, 1-15 wt% of polymethyl methacrylate, 0.1-15 wt% of polyethylene, 0.1-15 wt% of bisphenol, 0.1-10 wt% of acryl-urethane, 0.01-10 wt% of a shrinking inhibitor and 0.01-10 wt% of a reaction initiator, and a method for producing a lining material impregnated withe the polymer composition. The polymer composition for impregnation and the lining material impregnated therewith show excellent water resistance, chemical resistance, acid resistance, durability, salt resistance and strength, and has excellent adhesive force and water pressure resistance, and thus can be used for reinforcing concrete structures, such as underground waterproof structures, to which water pressure is applied.

Description

TECHNICAL FIELD [0001] The present invention relates to a polymer composition for impregnation, and a lining material for sewerage repair and reinforcement including the polymer composition.

The present invention relates to a polymer composition for impregnation and a lining material for sewerage maintenance reinforcement including the polymer composition. More particularly, the polymer composition for impregnation includes an inorganic filler and a polymer binder, and the lining material containing the polymer composition is excellent in water resistance, chemical resistance, , Flame retardancy, and strength, so that various damage sites such as cracks, partial breakages, joints and the like can be quickly and completely repaired and reinforced, and a lining material for sewer repair and reinforcement including the same .

Generally, defects such as concrete hume pipes, vinyl chloride pipes made of synthetic resin, ducts buried underground, cracks, breakage or detachment due to deterioration of the pipe itself, subsidence of the ground, Lt; / RTI > When such defects occur in the sewer pipe, wastewater flowing through the sewer pipe flows out to the ground through the defective portion. Spilled wastewater pollutes soil and groundwater.

As a method for repairing sewage pipes buried in the ground, there are an excavation type repair method for largely excavating and repairing the ground and a non-digging type maintenance method for repairing through a manhole without excavating the ground. Among these, the non-drilling repair method is classified into the grouting index method or the lining reinforcement method depending on the characteristics of the damaged portion of the sewer pipe and the surrounding conditions.

The grouting index method is a method of spraying a predetermined liquid repair material from a repair device to a damaged area and then hardening the material to repair the damage to the local sewage line. It is a method to avoid.

The lining reinforcing method is a method of reinforcing the lining of the sewage pipe when the damage is severe and the reinforcing function is required. For example, if the damaged part of the sewage pipe is widely distributed or the damaged part is formed around the entire inner diameter of the sewage pipe, It is a method to reinforce the damaged area over a wide range at a time by lining. However, in the grouting index method, the liquid repair material escapes to the damaged portion of the sewer pipe and is mixed and absorbed in the soil around the sewer pipe, and the waterproofing index function is effective over time. However, There is a problem in that the reinforcing function of lining on the base plate is uncertain.

In the lining reinforcement method, the maintenance material is covered with the repair material, and the waste water is introduced into the sewage pipe and moved. During the movement, the repair material is separated and damaged, and the repair material is covered by the repair device for each damaged portion of the sewer pipe. It takes a lot of time.

In addition, the lining reinforcing method is effective in reinforcing the lining of the sidewalls in the sewer pipe from the viewpoint of function, but there is a problem that leakage of wastewater from the damaged area of the sewer pipe and an exponential function for blocking inflow of unknown water are uncertain.

The problem to be solved by the present invention is to provide a waterproof resin composition which is excellent in properties such as water resistance, chemical resistance, acid resistance, durability, salt resistance and strength, and has excellent adhesive force so that cracks, partial breakage, The present invention also provides a polymer composition for impregnation that prevents the coating material from being peeled or removed due to movement in a pipeline, and a method of manufacturing a lining material for sewer repair and reinforcement using the polymer composition.

The impregnating polymer composition provided according to one aspect of the present invention comprises 1 to 50 wt% of a filler and 50 to 99 wt% of a polymer binder, wherein the polymer binder comprises 40 to 98 wt% of an unsaturated polyester, 1 to 15% by weight of polyolefin, 0.1 to 15% by weight of polyethylene, 0.1 to 15% by weight of bisphenol, 0.1 to 10% by weight of acryl-urethane, 0.01 to 10% by weight of shrinkage reducing agent and 0.01 to 10% .

Wherein the filler is selected from the group consisting of 10 to 90 wt% heavy calcium carbonate, 1 to 20 wt% magnesium oxide, 1 to 20 wt% blast furnace slag, 0.1 to 20 wt% aluminum hydroxide, 0.1 to 10 wt% By weight and zinc oxide in an amount of 0.01 to 10% by weight.

The polymer binder may further include 0.01 to 10% by weight of a pigment.

In addition, the polymer binder may further contain 0.01 to 10% by weight of chlorinated paraffin.

In addition, the polymer binder may further include 0.01 to 10% by weight of polycarbonate.

In addition, the polymer binder may further include 0.01 to 10% by weight of an accelerator.

In addition, the polymer binder may further include 0.01 to 10% by weight of a crosslinking agent.

In addition, the polymer binder may further include 0.01 to 10% by weight of a coupling agent.

Meanwhile, the lining material containing the impregnation polymer composition provided according to another aspect of the present invention is a lining material prepared by impregnating the above-mentioned impregnation polymer composition into a base material made of fibers or nonwoven fabric. As the fiber or nonwoven fabric, it is preferable to use a mixture of glass fiber, polyethylene fiber and nylon fiber at a weight ratio of 1: 0.01 to 0.3: 0.01 to 0.3.

According to the present invention, excellent properties such as water resistance, chemical resistance, acid resistance, durability, salt resistance and strength, and excellent adhesive force enable complete and quick repair and reinforcement of damaged parts such as cracks, partial breakage, And it is also possible to prevent the covering material from being peeled off or removed due to movement in the pipeline.

In the case of using the lining material impregnated with the impregnation polymer composition of the present invention, it exhibits an excellent effect of water blocking effect, neutralization by chloride or carbon dioxide, water resistance, weather resistance and freeze-thaw resistance.

Hereinafter, preferred embodiments according to the present invention will be described in detail. However, it should be understood that the following embodiments are provided so that those skilled in the art will be able to fully understand the present invention, and that various modifications may be made without departing from the scope of the present invention. It is not.

The impregnating polymer composition according to a preferred embodiment of the present invention comprises a filler and a polymer binder.

The impregnating polymer composition may comprise 1 to 50 wt% of a filler and 50 to 99 wt% of a polymer binder.

Wherein the filler comprises 10 to 90% by weight of heavy calcium carbonate, 1 to 20% by weight of magnesium oxide, 1 to 20% by weight of blast furnace slag, 0.1 to 20% by weight of aluminum hydroxide, 0.1 to 10% by weight of titanium oxide, % And zinc oxide in an amount of 0.01 to 10% by weight.

Wherein the polymeric binder comprises from 40 to 98% by weight of unsaturated polyester, from 1 to 15% by weight of polymethylmethacrylate, from 0.1 to 15% by weight of polyethylene, from 0.1 to 15% by weight of bisphenol, from 0.1 to 10% 0.01 to 10% by weight, and 0.01 to 10% by weight of a reaction initiator.

The heavy calcium carbonate is used for enhancing the thickening effect and improving the filling property. The heavy calcium carbonate is preferably contained in an amount of 10 to 90% by weight based on the filler.

The magnesium oxide (MgO) is used as an inorganic flame retardant. The magnesium oxide has a formula MgO and a compounding amount of 40.3. The magnesium oxide is also called goto (industrial grade), the industrial product is called magnesia, and the medicine is called magnesia woaster. The magnesium oxide has a melting point of about 2826 ° C, a boiling point of about 3600 ° C, a specific gravity of 3.65, a cubic crystal system solubility of 0.62mg / 100g, and a refractive index of 1.7364. Magnesium oxide is obtained by heating metallic magnesium in air, and industrially, magnesium carbonate (magnesite), magnesium hydroxide carbonate, magnesium hydroxide and the like are calcined. Magnesium oxide is a white crystalline solid, chemically relatively inert. Magnesium oxide is only slightly soluble in water, but it dissolves in dilute acid. Magnesium oxide slowly absorbs water and carbon dioxide gas in the air and becomes magnesium hydroxide carbonate. Magnesium oxide is very reflective (visible) and near-ultraviolet (reflectivity) and is used as a reflector or white standard in optics. Magnesium oxide is industrially used as a raw material for magnesia cement, steelmaking furnace material and refractory brick tile.

The magnesium oxide is preferably contained in an amount of 1 to 20% by weight based on the weight of the filler. When the content of the magnesium oxide exceeds 20% by weight, the flame retardancy is improved but the workability and strength may be deteriorated. Workability and strength are increased but the flame retarding effect may be weak.

The blast furnace slag powder is used for improving latent hydraulic characteristics, long-term strength development and durability. When the weight ratio of the blast furnace slag powder is increased, the early strength is lowered, but the long-term strength development and durability are increased. The blast furnace slag powder is preferably contained in an amount of 1 to 20% by weight based on the filler.

The aluminum hydroxide is used for improving flame retardancy and durability. The aluminum hydroxide is preferably contained in an amount of 0.1 to 20 wt% with respect to the filler. When the aluminum hydroxide content is more than 20 wt%, the flame retardancy and durability are improved, but the cost is not competitive and the aluminum hydroxide content If it is less than 0.1% by weight, the effect of improving the flame retardancy and durability may be weak.

The above-mentioned titanium oxide is used for eliminating gloss of an acid-resistant / alkali-resistant paint, a white pigment having high hiding power, artificial dogs, staple fiber and chemical fiber and is harmless, It is used for packing paper of food. It is also used in soap, printing, printing ink, artificial leather, etc. in addition to polishing of metal products, raw materials for organic titanium compounds, enamel and ceramic glazes, titanium capacitors and dental materials. Titanium oxide (II), titanium oxide (III), titanium oxide (IV) and titanium peroxide are known as titanium oxide. In the present invention, titanium oxide (IV) is preferably used. Since titanium oxide has excellent light reflectivity in the infrared region, it exerts an excellent effect in suppressing the temperature rise of the road surface. It is preferable that the titanium oxide is contained in an amount of 0.1 to 10 wt% with respect to the filler. If the content of the titanium oxide exceeds 10 wt%, the effect of improving the temperature rise suppression and the antifouling property is improved, If the content of the titanium oxide is less than 0.1% by weight, the effect of suppressing the temperature rise may be small.

The zeolite is used as a hygroscopic agent to absorb moisture of the polymer resin during fast curing and to prevent foaming. The zeolite is collectively referred to as minerals which are aluminum silicate hydrates of alkali and alkaline earth metals. The color is colorless transparent or white translucent. Zeolite is also called zeolite, and it has many kinds, but it has commonality in the points of high water content, crystal properties, and acidity. The hardness of the zeolite does not exceed 6 and the specific gravity is about 2.2. Zeolites generally dissolve in hydrochloric acid and often form glues, but a few species are not soluble in hydrochloric acid. The main types of zeolite are antimatter, ophthalmic, chabazite, soda ash, heulandite, stilbite, rhomontite and enesite. These zeolites are produced in the cavities and bases of basic igneous rocks such as basalt and whistle tuff, and sometimes as secondary minerals in granite and gneiss. In addition, zeolite may be produced in gold ore or other veins. The zeolite can be adsorbed by other zeolites, because the zeolite is loosely bound to each atom in a crystal structure, and the water filling the space is released as a high heat, the skeleton remains. Using this property, zeolite is used as an adsorbent, and it is also used as a molecular sieve (molecular sieve) for separating fine particles of different sizes.

If the content of the zeolite exceeds 10% by weight, the workability may be deteriorated. If the content of the zeolite is less than 0.01% by weight, the zeolite may have a moisture absorption effect It can be weak.

The zinc oxide is used for antiseptic and antimicrobial functions. The zinc oxide is preferably contained in an amount of 0.01 to 10 wt% with respect to the filler. When the content of zinc oxide is less than 0.01% by weight, the anticorrosion and antimicrobial effect may be insignificant. When the content of zinc oxide is more than 10% by weight, And the manufacturing cost is increased, which is not economical.

The unsaturated polyester is used to improve strength and durability. The unsaturated polyester is preferably contained in an amount of 40 to 98% by weight based on the polymer binder. If the content of the unsaturated polyester exceeds 98% by weight, the strength and durability are improved but the brittleness tends to occur. If the content of the unsaturated polyester is less than 10% by weight, the effect of improving the strength and durability may be weak.

The polymethylmethacrylate is used for improvement in water hardenability, viscosity improvement and durability. The polymethyl methacrylate is preferably contained in an amount of 1 to 15% by weight based on the polymer binder. If the content of the polymethylmethacrylate exceeds 15% by weight, the underwater curability and durability are improved but the separation of the materials tends to occur. If the content of the polymethylmethacrylate is less than 1% by weight, improvement in water hardenability, viscosity and durability The effect may be weak.

The polyethylene is used for improving strength, durability and weatherability. The polyethylene is preferably contained in an amount of 0.1 to 15% by weight based on the polymer binder. If the content of the polyethylene exceeds 15% by weight, the weatherability is improved but the price competitiveness may deteriorate. If the content of the polyethylene is less than 0.1% by weight, the effect of improving the strength, durability and weatherability may be insignificant.

The bisphenol is used to improve adhesion strength, durability, and particularly water resistance. The bisphenol is preferably contained in an amount of 0.1 to 15% by weight based on the polymer binder. If the bisphenol content exceeds 15% by weight, the adhesive strength and durability are improved but the viscosity is increased and it is difficult to impregnate. If the bisphenol content is less than 0.1% by weight, the adhesive strength and durability improvement effect may be weak.

The acryl-urethane uses a hard segment using glycol and amines, a soft segment using polymeric glycol, and a polyisocyanate as main ingredients. The polyurethane synthesis can be carried out by any one of a one-shot method of reacting a polyurethane glycol and a chain extender with an admixture of a polyisocyanate at one time and a prepolymer method of reacting the polyisocyanate in an excess amount and then extending the prepolymer again . The acryl-urethane is excellent in tensile strength, excellent in chemical resistance and abrasion resistance and can be used as an elastomer, a flexible foam, a rigistic foam, a plastic, a paint, an adhesive, It is widely used in almost all fields of polymer materials. The acryl-urethane is preferably contained in an amount of 0.1 to 10 wt% with respect to the polymer binder, and when the content of the acryl-urethane is more than 10 wt%, the ductility tends to become strong and deformation due to the load tends to occur. If the amount is less than 10% by weight, the effect of improving tensile strength, chemical resistance and wear resistance may be insignificant.

The shrinkage reducing agent causes a large shrinkage of 7 to 10% when the thermosetting resin is cured. In order to reduce the amount of shrinkage, polystyrene was dissolved in a styrene monomer and used as a shrinkage reducing agent. The shrinkage reducing agent is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder. If the content of the shrinkage reducing agent exceeds 10% by weight, the effect of improving the shrinkage reduction is insufficient and the workability is lowered. If the content of the shrinkage reducing agent is less than 0.01% by weight, the shrinkage reducing effect decreases.

The reaction initiator is used to control the reaction rate of the polymer binder. The reaction initiator is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder. The reaction initiator may be at least one peroxide selected from the group consisting of benzoyl peroxide, acetyl peroxide, dilauryl peroxide, di-tert-butyl peroxide, cumyl hydroperoxide, hydrogen peroxide and potassium persulfate . When the content of the reaction initiator is more than 10% by weight, the reaction rate is high and the workability is deteriorated. When the content of the reaction initiator is less than 0.01% by weight, the reaction rate is decreased and the performance is not exhibited.

The polymeric binder may further comprise a pigment. The pigment may be an azo compound (AZO compound) which is an organic pigment that reflects infrared rays. The azo compound is a generic name of a compound having an azo group -N = N-. The azo compound has a binding angle close to 120 아 in the nitrogen of the azo group, and it is possible to form a cis form and a trans-form geometric isomer. Most of the azo compound exists in a stable trans-form, and azobenzene is a typical azo compound in the trans form. These azo compounds can be used to produce the color desired by the consumer. The pigment is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder. If the content of the pigment is less than 0.01% by weight, the effect of infrared reflection and color development may be insignificant. If the content of the pigment exceeds 10% by weight, the price competitiveness may be deteriorated.

Further, the polymer binder may further include chlorinated paraffin. The chlorinated paraffin is used for improving flame retardancy. The chlorinated paraffin is preferably contained in an amount of 0.01 to 15% by weight based on the polymer binder. When the content of the chlorinated paraffin exceeds 15% by weight, the flame retardant effect is obvious but the workability may be deteriorated. If the content is less than 0.01% by weight, the flame retardant effect may be insignificant.

In addition, the polymeric binder may further comprise a polycarbonate. The polycarbonate is used to improve strength and durability. If the content of the polycarbonate exceeds 15% by weight, the performance may be improved but the price competitiveness may be deteriorated, and the content of the polycarbonate resin If it is less than 0.01% by weight, the effect of improving the strength and durability may be weak.

In addition, the polymeric binder may further comprise an accelerator. The accelerator is used to activate the reaction initiator to promote the curing reaction of the polymer binder. As the accelerator, it is preferable to use N-dimethyltoluidine. The accelerator is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder.

In addition, the polymeric binder may further include a crosslinking agent. The cross-linking agent is used to form a network structure by the cross-linking function between the linear polymer. As the crosslinking agent, it is preferable to use trimethylolpropane trimethacrylate or trimethylolpropane triacrylate. The crosslinking agent is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder.

In addition, the polymer binder may further include a coupling agent. The coupling agent is used to form a dense structure by connecting a hydrolyzing unit reacting with the filler and a functional group reacting with the polymer binder. As the coupling agent, it is preferable to use vinylmethyldimethoxysilane. The coupling agent is preferably contained in an amount of 0.01 to 10% by weight based on the polymer binder.

The polymer composition for impregnation according to a preferred embodiment of the present invention may be prepared by adding 1 to 50% by weight of the filler to 50 to 98% by weight of the polymer binder and mixing for a predetermined time (for example, 30 seconds to 3 minutes) have.

The lining material according to a preferred embodiment of the present invention can be prepared by impregnating the base material made of fibers or nonwoven fabric with the polymer composition for impregnation.

As the fiber or nonwoven fabric, it is preferable to use a mixture of glass fiber, polyethylene fiber and nylon fiber at a weight ratio of 1: 0.01 to 0.3: 0.01 to 0.3.

Hereinafter, embodiments according to the present invention will be specifically shown, and the present invention is not limited to the following embodiments.

≪ Example 1 >

5% by weight of the filler and 95% by weight of the polymer binder were mixed in a forced mixer for 2 minutes to prepare a polymer composition for impregnation.

The filler was prepared by mixing 80 parts by weight of heavy calcium carbonate, 5 parts by weight of magnesium oxide, 5 parts by weight of blast furnace slag, 5 parts by weight of aluminum hydroxide, 4 parts by weight of titanium oxide, 3 parts by weight of zeolite and 3 parts by weight of zinc oxide Respectively.

At this time, the polymer binder contained 91 wt% of unsaturated polyester, 2 wt% of polymethyl methacrylate, 1 wt% of polyethylene, 1 wt% of bisphenol, 1 wt% of acryl-urethane, 1 wt% of shrinkage reducing agent, 0.5% by weight of chlorinated paraffin, 0.5% by weight of polycarbonate, 0.5% by weight of a crosslinking agent, 0.5% by weight of an accelerator, 0.3% by weight of a coupling agent and 0.2% by weight of a white pigment. The shrinkage reducing agent used was one in which polystyrene was dissolved in styrene monomer. As the crosslinking agent, trimethylolpropane trimethacrylate was used. N-dimethyltoluidine was used as the accelerator. The coupling agent used was vinylmethyldimethoxysilane.

≪ Example 2 >

5% by weight of the filler and 95% by weight of the polymer binder were mixed in a forced mixer for 2 minutes to prepare a polymer composition for impregnation.

The filler was prepared by mixing 80 parts by weight of heavy calcium carbonate, 5 parts by weight of magnesium oxide, 5 parts by weight of blast furnace slag, 5 parts by weight of aluminum hydroxide, 4 parts by weight of titanium oxide, 3 parts by weight of zeolite and 3 parts by weight of zinc oxide Respectively.

The polymer binder was composed of 86% by weight of unsaturated polyester, 3% by weight of polymethylmethacrylate, 2% by weight of polyethylene, 2% by weight of bisphenol, 2% by weight of acryl-urethane, 2% by weight of shrinkage reducing agent, 0.5% by weight of chlorinated paraffin, 0.5% by weight of polycarbonate, 0.5% by weight of a crosslinking agent, 0.5% by weight of an accelerator, 0.3% by weight of a coupling agent and 0.2% by weight of a white pigment. The shrinkage reducing agent used was one in which polystyrene was dissolved in styrene monomer. As the crosslinking agent, trimethylolpropane trimethacrylate was used. N-dimethyltoluidine was used as the accelerator. The coupling agent used was vinylmethyldimethoxysilane.

≪ Example 3 >

5% by weight of the filler and 95% by weight of the polymer binder were mixed in a forced mixer for 2 minutes to prepare a polymer composition for impregnation.

The filler was prepared by mixing 80 parts by weight of heavy calcium carbonate, 5 parts by weight of magnesium oxide, 5 parts by weight of blast furnace slag, 5 parts by weight of aluminum hydroxide, 4 parts by weight of titanium oxide, 3 parts by weight of zeolite and 3 parts by weight of zinc oxide Respectively.

At this time, the polymer binder contained 81 wt% of unsaturated polyester, 4 wt% of polymethyl methacrylate, 3 wt% of polyethylene, 3 wt% of bisphenol, 3 wt% of acryl-urethane, 3 wt% of shrinkage reducing agent, 0.5% by weight of chlorinated paraffin, 0.5% by weight of polycarbonate, 0.5% by weight of a crosslinking agent, 0.5% by weight of an accelerator, 0.3% by weight of a coupling agent and 0.2% by weight of a white pigment. The shrinkage reducing agent used was one in which polystyrene was dissolved in styrene monomer. As the crosslinking agent, trimethylolpropane trimethacrylate was used. N-dimethyltoluidine was used as the accelerator. The coupling agent used was vinylmethyldimethoxysilane.

<Example 4>

The impregnation polymer composition prepared in Example 1 was impregnated into a mesh of glass fiber, polyethylene fiber and nylon fiber at a weight ratio of 1: 0.1: 0.1 to prepare a lining material.

&Lt; Example 5 >

The impregnation polymer composition prepared in Example 2 was impregnated into a mesh of glass fiber, polyethylene fiber and nylon fiber at a weight ratio of 1: 0.1: 0.1 to prepare a lining material.

&Lt; Example 6 >

The impregnating polymer composition prepared in Example 3 was impregnated with a glass fiber, polyethylene fiber and nylon fiber in a weight ratio of 1: 0.1: 0.1 to prepare a lining material.

The comparative examples which can be compared with the embodiments of the present invention are shown in order to more easily grasp the characteristics of the first to sixth embodiments. It should be noted that Comparative Example 1 and Comparative Example 2, which will be described later, are presented for the sake of simple comparison with the characteristics of the embodiments, and are not prior art of the present invention.

&Lt; Comparative Example 1 &

5% by weight of heavy calcium carbonate and 95% by weight of unsaturated polyester were mixed in a forced mixer for 2 minutes to prepare a composition.

&Lt; Comparative Example 2 &

The composition prepared according to Comparative Example 1 was impregnated in a glass fiber mesh to prepare a lining material.

The present invention will be described in more detail with reference to the following experimental examples, which are not intended to limit the present invention.

&Lt; Test Example 1 >

The impregnation polymer composition prepared according to Examples 1 to 3, the lining material prepared according to Examples 4 to 6, the composition prepared according to Comparative Example 1, and the lining prepared according to Comparative Example 2 In order to compare the mechanical properties of ash, the tensile strength test was carried out by KS M 3015 and the compressive strength, flexural strength and bond strength test were carried out by KS M 3734. For the lining material, tensile strength, The elastic modulus and elongation were measured and the results are shown in Table 1 below.

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2
burglar
(kgf / cm2) Seal 365 377 385 - - - 320 - compression 910 950 998 - - - 850 - warp 430 450 460 - - - 410 - Attach 22 23 23 - - - 21 -

Tensile performance Tensile (kgf / cm2) - - - 770 780 802 - 750 Tensile modulus of elasticity (占 10 ⁵ kgf / cm 2) - - - 3.5 3.8 4.0 - 3.0 Elongation (%) - - - 2.5 4 5.6 - 2

As shown in Table 1, the impregnating polymer composition prepared according to Examples 1 to 3 exhibited higher tensile strength, elongation and tensile adhesion performance than the composition prepared according to Comparative Example 1, The lining material prepared according to Example 6 showed higher tensile strength, elongation and tensile elastic modulus than the lining material prepared according to Comparative Example 2. [

&Lt; Test Example 2 &

The impregnation polymer composition prepared according to Examples 1 to 3, the lining material prepared according to Examples 4 to 6, the composition prepared according to Comparative Example 1, and the lining prepared according to Comparative Example 2 In order to compare the absorption rate of ash, the measurement results of the absorption rate according to the method specified in KS M 3305 are shown in Table 2 below.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Absorption Rate (%) 0.75 0.85 0.92 0.95 1.0 1.02 1.1 1.18

As shown in Table 2, the impregnation polymer composition prepared according to Examples 1 to 3 exhibited a lower water absorption than the composition prepared according to Comparative Example 1, and the impregnation polymer compositions prepared according to Examples 4 to 6 The lining material showed better water resistance than the lining material prepared in accordance with Comparative Example 2.

&Lt; Test Example 3 >

The impregnation polymer composition prepared according to Examples 1 to 3, the lining material prepared according to Examples 4 to 6, the composition prepared according to Comparative Example 1, and the lining prepared according to Comparative Example 2 In order to compare abrasion resistance of ashes, abrasion resistance test according to ASTM D 4060-10 was carried out, and the results are shown in Table 3 below.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Abrasion resistance (mg) 22 24 25.5 26 28 29.5 30 40

As shown in Table 3, the impregnation polymer composition prepared according to Examples 1 to 3 was superior in wear resistance to the composition prepared according to Comparative Example 1. It can be seen that the lining material produced according to Examples 4 to 6 is superior to the lining material prepared according to Comparative Example 2 in abrasion resistance.

<Test Example 4>

The impregnation polymer composition prepared according to Examples 1 to 3, the lining material prepared according to Examples 4 to 6, the composition prepared according to Comparative Example 1, and the lining prepared according to Comparative Example 2 In order to compare the chemical resistance of the ash, an aqueous solution of 2% hydrochloric acid, 5% sulfuric acid and 45% sodium hydroxide was immersed in the test solution for 28 days in accordance with the Japanese Industrial Standards [original test method for chemical resistance test by solution immersion in concrete] The measurement results of the chemical resistance test are shown in Table 4 below.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Weight change rate
(%) Hydrochloric acid -0.3 -0.3 -0.4 -0.2 -0.2 -0.3 -0.8 -0.6 Sulfuric acid 0 -0.1 -0.2 0 0.05 0.05 -0.5 -0.3 Sodium hydroxide 0.9 0.8 0.65 0.92 0.95 0.95 0 0.2

As shown in Table 4, the polymer composition for impregnation prepared according to Examples 1 to 3 exhibited less weight change ratio to chemical resistance than the composition prepared according to Comparative Example 1, and showed high resistance to chemical resistance .

It was confirmed that the lining materials prepared according to Examples 4 to 6 exhibited less weight change ratio to the chemical resistance than the lining materials prepared according to Comparative Example 2 and were highly resistant to chemical resistance.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, This is possible.

Claims (10)

As the impregnation polymer composition,
1 to 50% by weight of a filler and 50 to 99% by weight of a polymer binder,
Wherein the polymeric binder comprises from 40 to 98% by weight of unsaturated polyester, from 1 to 15% by weight of polymethylmethacrylate, from 0.1 to 15% by weight of polyethylene, from 0.1 to 15% by weight of bisphenol, from 0.1 to 10% 0.01 to 10% by weight, and 0.01 to 10% by weight of a reaction initiator
&Lt; / RTI &gt;
The method according to claim 1,
Wherein the filler comprises:
Wherein the magnesium oxide is contained in an amount of 10 to 90 wt%, the magnesium oxide is 1 to 20 wt%, the blast furnace slag fine powder is 1 to 20 wt%, the aluminum hydroxide is 0.1 to 20 wt%, the titanium oxide is 0.1 to 10 wt%, the zeolite is 0.01 to 10 wt% And 0.01 to 10% by weight of zinc.
The method according to claim 1,
Wherein the polymeric binder further comprises 0.01 to 10% by weight of pigment.
The method according to claim 1,
Wherein the polymeric binder further comprises 0.01 to 10% by weight of chlorinated paraffin.
The method according to claim 1,
Wherein the polymeric binder further comprises from 0.01 to 10% by weight of polycarbonate.
The method according to claim 1,
Wherein the polymeric binder further comprises 0.01 to 10% by weight of an accelerator.
The method according to claim 1,
Wherein the polymeric binder further comprises from 0.01 to 10% by weight of a crosslinking agent.
The method according to claim 1,
Wherein the polymeric binder further comprises 0.01 to 10% by weight of a coupling agent.
A lining material for sewerage maintenance and reinforcement comprising the impregnating polymer composition according to any one of claims 1 to 8,
Characterized in that the impregnating polymer composition is impregnated in a base material made of fibers or nonwoven fabric.
10. The method of claim 9,
Wherein the fibers or the nonwoven fabric are mixed with glass fibers, polyethylene fibers and nylon fibers in a weight ratio of 1: 0.01 to 0.3: 0.01 to 0.3.