KR100969655B1 - Antimicrobial pvc waterworks pipe with three layer - Google Patents

Antimicrobial pvc waterworks pipe with three layer Download PDF

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KR100969655B1
KR100969655B1 KR1020100015976A KR20100015976A KR100969655B1 KR 100969655 B1 KR100969655 B1 KR 100969655B1 KR 1020100015976 A KR1020100015976 A KR 1020100015976A KR 20100015976 A KR20100015976 A KR 20100015976A KR 100969655 B1 KR100969655 B1 KR 100969655B1
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weight
parts
layer
antimicrobial
pvc
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KR1020100015976A
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Korean (ko)
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박헌홍
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(주)홍일산업
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Abstract

PURPOSE: A PVC pipe of an antimicrobial triple structure is provided to improve impact resistance and strength against impact, and to stably and sanitarily supply drinking water using a water pipe with antimicrobial ability. CONSTITUTION: A PVC pipe of an antimicrobial triple structure is composed of an external layer(1), a central layer(2), and an internal layer(3). The external layer and the internal layer are composed of composite heat stabilizer 2~6 weight%, Methyl Methacrylate-Butadiene-Styrene impact modifier 3~8 weight%, zeolite 1~3 weight%, vermiculite 1~8 weight%, phosphate compound 0.1~2 weight%, lubricant 0.2~3 weight%, and TiO2 0.5~2 weight%. The central layer is composed of composite heat stabilizer 2~6 weight%, Methyl Methacrylate-Butadiene-Styrene impact modifier 0~2 weight%, CaCO3 0.1~5 weight%, lubricant 0.2~3 weight%, and TiO2 0.5~2 weight%.

Description

항균성 3층 구조의 ＰＶＣ 상수관{ANTIMICROBIAL PVC WATERWORKS PIPE WITH THREE LAYER}PVC water pipe with antibacterial 3-layer structure {ANTIMICROBIAL PVC WATERWORKS PIPE WITH THREE LAYER}

본 발명은 식수를 공급하는 항균성 PVC(Poly VinylChloride) 상수관에 관한 것으로서, 보다 구체적으로는 식수를 안정적이고 위생적으로 공급하기 위하여 상수관에 항균성을 부여한 항균성 3층 구조를 갖는 PVC 상수관에 관한 것이다.The present invention relates to an antimicrobial PVC (Poly VinylChloride) water supply pipe for supplying drinking water, and more particularly, to a PVC water supply pipe having an antimicrobial three-layer structure that gives antimicrobial properties to a water supply pipe for stable and hygienic supply of drinking water. .

일반적으로 식수를 공급하는 수도관은 주철관 또는 아연관 등의 금속관을 사용하고 있으며, 이러한 금속관은 오랜 기간 사용할 경우 관의 내벽에 발생하는 녹으로 인하여 내벽이 부식되고 녹은 식수에 혼입되어 식수를 오염시킴으로써 식수를 위생적으로 공급하는데 많을 문제점을 발생시키고 있을 뿐 아니라 금속관은 설치작업 및 운반 시에 과중한 무게로 인하여 작업성이 나쁘다.Generally, water pipes supplying drinking water use metal pipes such as cast iron pipes or zinc pipes, and these metal pipes are rusted on the inner wall of the pipe when used for a long time. In addition to causing a lot of problems in the hygienic supply of metal pipes due to the heavy weight during installation and transport work is poor workability.

상기와 같은 문제점은 금속관보다 강도면에서 약한 합성수지제 수도관의 내충격성을 개선한 올레핀계의 고밀도 폴리에틸렌(HDPE) 및 폴리염화비닐(PVC)수지로 제조된 수도관으로 대체하여 사용함으로써 해결할 수 있으나, 합성수지제 수도관 역시 물을 저속으로 흘리거나 장기 체류하는 경우에는 대장균과 같은 유해 미생물의 번식으로 인하여 악취를 발생시켜 불쾌감을 주거나 심한 경우 설사, 장염, 식중독을 일으킬 수 있으므로 합성수지제로 수도관을 제작할 때 항균성을 부여하는 기술들이 개발되어 있다.The above problems can be solved by replacing the water pipes made of olefin-based high density polyethylene (HDPE) and polyvinyl chloride (PVC) resins with improved impact resistance of synthetic resin water pipes, which are weaker in strength than metal pipes. Water pipes also give an antimicrobial effect when manufacturing water pipes with synthetic resins, because water can flow at low speed or stay for long periods of time, which can cause odor due to propagation of harmful microorganisms such as Escherichia coli and can cause discomfort or severe diarrhea, enteritis, and food poisoning. Techniques have been developed.

그리고 합성수지제에 항균성을 부여하는 기술로는 폴리에틸렌에 아연을 활성성분으로 하는 무기계 항균제를 조합하는 항균성 폴리올레핀이 알려져 있고, 삼인산칼슘, 하이드록시 아파타이트, 인산수소칼슘 및 항균성 은화합물 등을 배합한 합성수지 등이 알려져 있다.In addition, antimicrobial polyolefins are known that combine an inorganic antimicrobial agent containing zinc with polyethylene as an active ingredient, and synthetic resins containing calcium triphosphate, hydroxyapatite, calcium hydrogen phosphate, and antimicrobial silver compounds. This is known.

또한, 국내 등록특허공보 등록번호 10-0890796호에는 항균성 이온성분을 함유하는 제올라이트를 배합한 항균성 수지조성물을 개시하고 있으며, 국내 등록특허공보 등록번호 10-0384929호에는 Fe2 +를 주성분으로 하는 무기계 항균제 및 항곰팡이제를 배합한 합성수지로 수지관을 제작하는 기술을 개시하고 있다.In addition, Korean Patent Application Registration No. 10-0890796 discloses a discloses a resin composition containing the antibacterial zeolite containing the antibacterial ions, Korean Patent Application Registration No. 10-0384929 discloses an inorganic composed mainly of Fe 2 + Disclosed is a technique for producing a resin tube made of a synthetic resin containing an antimicrobial agent and an antifungal agent.

본 발명은 상기한 금속제 수도관이 지니고 있는 문제점을 해결하기 위하여 항균성을 갖는 3층 구조를 갖는 항균성 PVC 수도관(Poly Vinyl Chloride Waterworks Pipe)을 제공하는 것으로서 더 구체적으로는 PVC관의 내충격성 등 물성을 개선하면서 식수를 안정적이고, 위생적으로 공급하기 위하여 3층 구조를 갖는 항균성 PVC 수도관(Poly Vinyl Chloride Waterworks Pipe)을 제공하는 것에 목적이 있다.The present invention provides an antimicrobial PVC water pipe (Poly Vinyl Chloride Waterworks Pipe) having a three-layer structure having antimicrobial properties in order to solve the problems of the metal water pipes, and more specifically, to improve physical properties such as impact resistance of PVC pipes. In order to supply drinking water stably and hygienically, an object of the present invention is to provide an antimicrobial PVC (Poly Vinyl Chloride Waterworks Pipe) having a three-layer structure.

본 발명이 목적하고 있는 과제를 해결하기 위하여 채용하고 있는 수단으로, 본 발명은 3층 구조를 갖는 PVC 수도관으로 구성되며, 외부층(1) 및 내부층(3)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 3~8중량부, 제올라이트 1~3중량부, 질석 1~8중량부, 인산염계 화합물 0.1~2중량부, 활제 0.2~3중량부, TiO2 0.5~2중량부로 조성되고, 중심층(2)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 0~2중량부, CaCO3 0.1 ~ 5중량부, 활제 0.2~3중량부, TiO2 0.5~2중량부로 조성된다.Means employed in order to solve the object of the present invention, the present invention is composed of a PVC water pipe having a three-layer structure, the material of the outer layer (1) and the inner layer (3) 100 parts by weight of PVC , 2 to 6 parts by weight of a composite thermal stabilizer, 3 to 8 parts by weight of an MBS impact modifier, 1 to 3 parts by weight of zeolite, 1 to 8 parts by weight of vermiculite, 0.1 to 2 parts by weight of a phosphate compound, 0.2 to 3 parts by weight of lubricant, TiO 2 is composed of 0.5 to 2 parts by weight, the material of the core layer 2 is 100 parts by weight of PVC, 2 to 6 parts by weight of composite thermal stabilizer, 0 to 2 parts by weight of MBS impact modifier, 0.1 to 5 parts by weight of CaCO 3 , 0.2 to 3 parts by weight of lubricant, and 0.5 to 2 parts by weight of TiO 2 .

본 발명에 따른 외부층(1) 및 내부층(3), 중심층(2)으로 선택하는 PVC(Poly Vinyl Chloride)는 일반적으로 관 내지 수도관 성형용으로 사용되는 중합도 800~1200의 PVC면 적당하고 특별히 제한하지 않으며, 또 첨가제로서 충격보강제로는 MBS계(Methylmetacrylate Butadiene Stylene), 아크릴계, 부타디엔계 등을 사용하며 MBS계가 특히 바람직하고, 중심층(2)에는 충격보강제를 배합하지 않거나 외부층(1) 및 내부층(3)보다 적게 배합하여 인장강도 및 장기 내수압 측면을 더 중요시하였으며, 복합열안정제로는 스테아린산 아연, 스테아린산 칼슘 및 메틸틴머켑타이드(Methyltin Mercaptide) 중에서 1종 또는 2종을 혼합 사용하는 것이 바람직하고, 활제로는 산화폴리에틸렌(Oxidized Polyethylene) 또는 파라핀왁스를 단독 또는 혼합 사용하는 것이 바람직하다. 또 필요할 경우, 대전방지제로 음이온계, 양이온계 등을 사용할 수 있으며, 폴리염화비닐의 성질상 수돗물의 흐름으로 인하여 정전기가 발명될 수 있으므로 내부층(3)에 주로 배합하여 사용할 수 있다.PVC (Poly Vinyl Chloride) selected as the outer layer (1), the inner layer (3), the center layer (2) according to the present invention is generally suitable for PVC having a polymerization degree of 800 to 1200 used for pipe or water pipe forming. There is no particular limitation, and as an additive, an impact modifier is used, such as MBS (Methylmetacrylate Butadiene Stylene), acrylic, butadiene, and MBS is particularly preferable, and the center layer (2) does not contain an impact modifier or an outer layer (1). ) And the inner layer (3) is less compounded, the tensile strength and the long-term water pressure is more important, and as a composite heat stabilizer, one or two of zinc stearate, calcium stearate and methyltin meraptide As the lubricant, it is preferable to use Oxidized Polyethylene or Paraffin Wax alone or in combination. In addition, if necessary, an anionic, cationic, or the like may be used as an antistatic agent, and since the static electricity may be invented due to the flow of tap water due to the nature of polyvinyl chloride, it may be mainly used in the inner layer (3).

그리고 본 발명에서 선택하고 있는 제올라이트, 질석 및 인산염계화합물은 항균작용을 하는 성분으로, 본 발명의 3층 구조의 수도관에서 외부층(1)과 내부층(3)에는 동일하게 배합되며, 제올라이트는 항균효과의 향상 및 층간의 결합력을 향상시키는 성분이고, 질석은 원적외선 방출 효과 및 항균성을 부여하는 동시에 충진제(Filler) 역할을 하며, 1~100㎛의 입도분포와 평균입경이 20㎛인 것이 분산성이 좋으며, 인산염계화합물은 항균성을 갖는 성분으로 제1인산염, 제2인산염, 헥사메타인산염 및 테트라피로인산칼륨(Mono-Phosphate, Di-Phosphate, Hexa meta-Phosphate 및 Tetra-Potassium Pyrophosphate) 중에서 선택한 하나 이상을 배합하여 향균성을 일층 증가시킨다.In addition, the zeolite, vermiculite and phosphate-based compound selected in the present invention are antibacterial components, and the same mixture is applied to the outer layer 1 and the inner layer 3 in the water pipe of the three-layer structure of the present invention. It is an ingredient that improves the antibacterial effect and improves the cohesion between layers. Vermiculite acts as a filler while providing far infrared ray emission effect and antibacterial property. The phosphate-based compound is an antimicrobial component selected from monophosphate, diphosphate, hexametaphosphate and potassium tetrapyrophosphate (Mono-Phosphate, Di-Phosphate, Hexa meta-Phosphate and Tetra-Potassium Pyrophosphate). By combining the above, the antibacterial properties are further increased.

또한 PVC 성형체를 제조할 때 일반적으로 첨가되는 열안정제, 자외선 안정제, 가공성 개선제 등의 첨가제도 필요시 첨가할 수 있으며 특별히 제한하는 것은 아니며 이 분야의 숙련자이면 적절한 첨가제 및 가공조제를 선택할 수 있으므로 구체적인 기재는 생략한다.In addition, additives such as heat stabilizers, UV stabilizers, and processability improving agents, which are generally added when manufacturing a PVC molded body, may be added, if necessary, and are not particularly limited. Those skilled in the art may select appropriate additives and processing aids. Is omitted.

그리고 본 발명에 따르는 3층 구조를 갖는 항균성 PVC 수도관은 3중 구조로 성형할 수 있는 공압출성형기를 이용하여 압출 성형하며, 3중 구조에서 중심층 배합물은 측면압출기(Side 압출기)로부터 3중 구조의 성형금형의 중심층으로 유입되고, 내,외층 배합물은 주압출기(Main 압출기)로부터 3중 구조의 성형금형의 내,외층으로 유입되어 3층 구조의 관으로 압출되며, 각 층간의 두께비율은 1:1:1~1:2:1의 비율로 성형하는 것이 바람직하다.And the antimicrobial PVC water pipe having a three-layer structure according to the present invention is extruded using a coextrusion molding machine that can be molded into a three-layer structure, in the three-layer structure, the core layer compound is a triple structure from the side extruder (Side extruder) The inner layer and the outer layer compound are introduced into the inner and outer layers of the three-layer molding mold from the main extruder and extruded into the tube of the three-layer structure, and the thickness ratio between the layers is It is preferable to mold at a ratio of 1: 1: 1 to 1: 2: 1.

본 발명에 따른 3층 구조를 갖는 항균성 PVC 수도관은 3층 구조에서 각각의 층마다 배합성분을 달리하여 금속관을 합성수지(폴리염화바닐수지)로 대체함으로써 발생할 수 있는 장기내수압, 충격강도 등의 물성에 따른 문제점을 개선하고 이와 더불어 각 층의 기능에 적합하도록 항균성을 부여한 수도관에 의해 식수를 안정적이고 위생적으로 공급할 수 있는 효과를 달성한다.The antimicrobial PVC water pipe having a three-layer structure according to the present invention is characterized by long-term water pressure, impact strength, etc., which may be caused by replacing the metal tube with a synthetic resin (poly vanyl chloride resin) by varying the compounding ingredients for each layer in the three-layer structure. In order to improve the problem according to this and to provide a stable and hygienic supply of drinking water by water pipes that have given antimicrobial properties to suit the function of each layer.

도 1은 본 발명에 따른 3층 구조를 갖는 항균성 PVC 수도관의 사시도.1 is a perspective view of an antimicrobial PVC water pipe having a three-layer structure according to the present invention.

본 발명은 도 1에 도시된 바와 같이 외부층(1), 중심층(2) 및 내부층(3)으로 이루어진 3층 구조를 갖는 항균성 PVC 수도관으로서 각 층간의 원료성분 및 최적의 조성비율은 다음과 같다.The present invention is an antimicrobial PVC water pipe having a three-layer structure consisting of an outer layer (1), a center layer (2) and an inner layer (3) as shown in FIG. Same as

본 발명에서 3층 구조를 갖는 PVC 수도관으로 구성되며, 외부층(1) 및 내부층(3)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 3~8중량부, 제올라이트 1~3중량부, 질석 1 ~ 8중량부, 인산염계 화합물 0.1~2 중량부, 활제 0.2~3중량부, TiO2 0.5~2 중량부로 조성되고, 중심층(2)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 0~2중량부, CaCO3 0.1 ~ 5중량부, 활제 0.2~3중량부, TiO2 0.5~2 중량부로 조성된다.In the present invention is composed of a PVC water pipe having a three-layer structure, the material of the outer layer (1) and the inner layer (3) 100 parts by weight of PVC, 2 to 6 parts by weight of the composite thermal stabilizer, MBS-based impact modifiers 3-8 Part by weight, 1 to 3 parts by weight of zeolite, 1 to 8 parts by weight of vermiculite, 0.1 to 2 parts by weight of a phosphate compound, 0.2 to 3 parts by weight of lubricant, 0.5 to 2 parts by weight of TiO 2 , and the material of the core layer 2 The furnace is composed of 100 parts by weight of PVC, 2 to 6 parts by weight of composite thermal stabilizer, 0 to 2 parts by weight of MBS-based impact modifier, 0.1 to 5 parts by weight of CaCO 3 , 0.2 to 3 parts by weight of lubricant, and 0.5 to 2 parts by weight of TiO 2 . .

그리고, 본 발명의 다층압출 성형기는 파이프의 각 층간의 두께 조절을 위해 터피도(torped)는 끝(tip)부분의 교체가 자유로우며, 맨드릴(mandrel)은 상하좌우 방향으로 이동이 가능한 것이어야 한다.In addition, the multilayer extrusion molding machine of the present invention is free to replace the tip of the torped tip to control the thickness of each layer of the pipe, and the mandrel should be movable up, down, left and right. .

<실시예1>Example 1

본 발명의 실시예1은 하기 [표1]의 배합에 따라 3중 원형구조로 성형할 수 있는 다층공압출 성형기를 이용하여 3층 구조를 갖는 PVC 수도관을 제작하였다.Example 1 of the present invention produced a PVC water pipe having a three-layer structure by using a multi-layer coextrusion molding machine that can be molded into a triple circular structure according to the combination of the following [Table 1].

Figure 112010011635809-pat00001
Figure 112010011635809-pat00001

<실시예2>Example 2

실시예1에서 제작된 본 발명의 3층 구조를 갖는 항균성 PVC 수도관에 따른 품질에 대한 그 측정값을 [표2]에 나타내었다.The measured value for the quality according to the antimicrobial PVC water pipe having a three-layer structure of the present invention produced in Example 1 is shown in [Table 2].

Figure 112010011635809-pat00002
Figure 112010011635809-pat00002

<실시예3>Example 3

실시예2의 3층 구조의 PVC 상수관의 항균성 특성은 당 기술분야에서 널리 사용되고 있는 쉐이크 플라스크(Shake Flask) 방법에 의해 실시하였다.The antimicrobial properties of the three-layered PVC water pipe of Example 2 were carried out by a shake flask method widely used in the art.

상기 쉐이크 플라스크 방법은 Buffer 완충액에 일정량의 희석균액을 첨가한 후, 일정시간 동안 진탕배양하고, 초기 균수와 일정시간 후의 균수 차이를 계산한 결과를 사용하여 항균효과를 판정하는 방법이다.The shake flask method is a method of determining the antimicrobial effect by using a result of adding a predetermined amount of diluted bacteria solution to the buffer buffer, shaking culture for a predetermined time, and calculating the difference between the initial number of bacteria and the number of bacteria after a certain time.

본 실시예의 항균성 검사를 위한 세균으로서, 대장균(Esherichia coli) 및 황색포도상균(Staphylococcus aureus)을 37℃에서 24시간 진탕 배양하여 각각의 생균수를 측정하고 그 결과를 [표3]에 나타내었다.As a bacterium for the antimicrobial test of this embodiment, Escherichia coli and Staphylococcus aureus were shaken and cultured at 37 ° C. for 24 hours to measure the number of viable cells, and the results are shown in [Table 3].

Figure 112010011635809-pat00003
Figure 112010011635809-pat00003

※감소율(%) = (초기 세균수 - 24시간 후 세균수)/(초기 세균수) X 100※ Reduction rate (%) = (initial number of bacteria-number of bacteria after 24 hours) / (initial number of bacteria) X 100

[표2] 및 [표3]의 결과에 나타난 바와 같이, 본 발명의 3층 구조를 갖는 항균성 PVC 수도관은 수도관에 적합한 물성을 가지면서 항균성을 나타내고 있으므로 금속관을 합성수지(폴리염화바닐수지)로 대체함으로써 발생할 수 있는 물성에 따르는 문제점을 개선하면서 식수를 안정적이고 위생적으로 공급할 수 있다.As shown in the results of [Table 2] and [Table 3], the antimicrobial PVC water pipe having the three-layer structure of the present invention exhibits antimicrobial properties while having suitable physical properties for the water pipe, so that the metal pipe is replaced with a synthetic resin (polyvinyl chloride). This can provide a stable and hygienic supply of drinking water while improving the problems caused by the physical properties.

1 : 외부층 2 : 중심층 3: 내부층1: outer layer 2: center layer 3: inner layer

Claims (5)

외부층(1), 중심층(2) 및 내부층(3)의 3층 구조를 갖는 항균성 PVC 수도관(Poly Vinyl Chloride Waterworks Pipe)에 있어서,
외부층(1) 및 내부층(3)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 3~8중량부, 제올라이트 1~3중량부, 질석 1 ~ 8중량부, 인산염계 화합물 0.1~2 중량부, 활제 0.2~3중량부, TiO2 0.5~2 중량부로 조성되고,
중심층(2)의 재질로는 PVC 100중량부, 복합열안정제 2~6중량부, MBS계 충격보강제 0~2중량부, CaCO3 0.1 ~ 5중량부, 활제 0.2~3중량부, TiO2 0.5~2 중량부로 조성되는 것을 특징으로 하는 항균성 PVC 수도관.
In the antibacterial PVC water pipe (Poly Vinyl Chloride Waterworks Pipe) having a three-layer structure of the outer layer (1), the center layer (2) and the inner layer (3),
The material of the outer layer 1 and the inner layer 3 is 100 parts by weight of PVC, 2 to 6 parts by weight of a composite heat stabilizer, 3 to 8 parts by weight of MBS-based impact modifier, 1 to 3 parts by weight of zeolite, vermiculite 1 to 8 parts by weight of a phosphate-based compound 0.1 to 2 parts by weight of the lubricant composition is 0.2 to 3 parts by weight, 0.5 to 2 wt parts of TiO 2,
The material of the core layer 2 is 100 parts by weight of PVC, 2 to 6 parts by weight of composite thermal stabilizer, 0 to 2 parts by weight of MBS impact modifier, 0.1 to 5 parts by weight of CaCO 3 , 0.2 to 3 parts by weight of lubricant, TiO 2 Antimicrobial PVC water pipe, characterized in that the composition is 0.5 to 2 parts by weight.
청구항 1에 있어서, 인산염계 화합물은 제1인산염, 제2인산염, 헥사 메타인산염(Hexa meta-Phosphate) 및 테트라 피로인산칼륨(Tetra-Potassium Pyrophosphate) 중에서 하나 이상을 선택하는 것을 특징으로 하는 항균성 PVC 수도관.
The antimicrobial PVC water pipe according to claim 1, wherein the phosphate compound is selected from at least one of monophosphate, diphosphate, hexa metaphosphate, and tetra-potasium pyrophosphate. .
청구항 2에 있어서, 외부층(1):중심층(2):내부층(3)의 두께 비율이 1:1:1 내지 1:2:1인 것을 특징으로 하는 항균성 PVC 수도관.
The antimicrobial PVC water pipe according to claim 2, wherein the thickness ratio of the outer layer (1): the center layer (2): the inner layer (3) is 1: 1: 1 to 1: 2: 1.
청구항 3에 있어서, 복합열안정제로 스테아린산 아연, 스테아린산 칼슘, 및 메틸틴머켑타이드(Methyltin Mercaptide) 중에서 선택된 1종 또는 2종을 혼합 사용하는 것을 특징으로 하는 항균성 PVC 수도관.
The antimicrobial PVC water pipe according to claim 3, wherein one or two selected from zinc stearate, calcium stearate, and methyltin meraptide are mixed.
청구항 1 내지 청구항 4 중 어느 하나의 항에 있어서, 중심층(2)에 MBS계 충격보강제를 배합하지 않는 것을 특징으로 하는 항균성 PVC 수도관.The antimicrobial PVC water pipe according to any one of claims 1 to 4, wherein an MBS-based impact modifier is not added to the center layer (2).
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