KR20010001811A - High-Strength PVC Pipe with Gypsum - Google Patents

High-Strength PVC Pipe with Gypsum Download PDF

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Publication number
KR20010001811A
KR20010001811A KR1019990021265A KR19990021265A KR20010001811A KR 20010001811 A KR20010001811 A KR 20010001811A KR 1019990021265 A KR1019990021265 A KR 1019990021265A KR 19990021265 A KR19990021265 A KR 19990021265A KR 20010001811 A KR20010001811 A KR 20010001811A
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South Korea
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pvc pipe
gypsum
pvc
present
strength pvc
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KR1019990021265A
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Korean (ko)
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김명열
김윤식
하동수
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김명열
김윤식
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Priority to KR1019990021265A priority Critical patent/KR20010001811A/en
Publication of KR20010001811A publication Critical patent/KR20010001811A/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

PURPOSE: A method for producing a high strength PVC pipe is provided to be harmless by extruding a mixture mixing plaster powder and additional complex with a present PVC pipe resin. CONSTITUTION: To produce a high strength PVC pipe, plaster powder containing TP-WS-P, CaO and so on is added to a present PVC pipe resin instead of a MBS which is an expensive impact reinforcement. Then, the mixture is extruded to be a new PVC pipe with excellent physical and mechanical property. Therefore, a producing cost is reduced and an environmental problem is removed by using the plaster powder which is industrial waste.

Description

석고분진을 함유한 고강도 피브이씨 파이프 제조{High-Strength PVC Pipe with Gypsum}High-Strength PVC Pipe with Gypsum

본 발명은 폐기물을 이용한 PVC파이프에 관한 것으로서, 기존의 PVC수지에 석고분진과 기타 복합체를 혼합하여 인체에 무해하고 고강도의 PVC파이프 제조에 관한 것이다.The present invention relates to a PVC pipe using waste, and is related to the manufacture of PVC pipe of harmless and high strength by mixing gypsum dust and other composites with existing PVC resin.

일반적으로 PVC파이프 제조에서 PVC는 열과 광에 의해서 불안정하고 쉽게 분해되므로 안정제나 기타 첨가제의 사용이 필요하다. 그리고 PVC의 이론적인 융점은 220℃이나 그보다 훨씬 낮은 온도인 10O℃에서부터 열분해(유리전이거동)를 시작하며 자외선에 의해서 노화(degradation)를 일으키는 단점을 가지고 있고 또 비교적 연화점(softening point)이 낮아서 80℃부근에서는 기계적인 강도가 급격히 떨어진다. 그러나 내화학성이 우수하고 불꽃이 제거되면 바로 불이 꺼지는 난연성도 가지고 있다. 특히 다른 고분자물질들과도 상당히 잘 섞이므로 그 가공범위가 매우 넓다.In general, in the manufacture of PVC pipes, PVC is unstable and easily decomposed by heat and light, and therefore, stabilizers or other additives are required. The theoretical melting point of PVC starts from pyrolysis (glass transition behavior) at 10O ℃, which is 220 ℃ or even lower, and causes gradation by UV rays, and has a relatively softening point. In the vicinity of ℃, the mechanical strength drops sharply. However, it has excellent chemical resistance and flame retardancy that extinguishes fire as soon as the flame is removed. In particular, it is mixed very well with other polymer materials, so its processing range is very wide.

또한 일반적으로 수돗물은 정수장으로부터 파이프를 통하여 각 가정에 공급되며, 이와 같은 파이프는 통상적으로 주철과 PVC로 이루어진다.In addition, tap water is generally supplied to each household through pipes from water purification plants, and such pipes are usually made of cast iron and PVC.

그러나, 주철제 파이프는 부식이 잘 되어 내부에 녹뿐만 아니라 슬러지들이 엉켜 있기 때문에 통수율이 떨어진다. 또한 주철제 파이프가 녹이 슬면 큰 변동하중이나 충격이 가해질 경우 쉽게 파손되어 수돗물이 누설됨으로써 수자원의 낭비를 초래하고 또한 오래 사용하지 못하고 빈번하게 도로를 파헤쳐 교체해야 함으로써 관리비용이 많이 든다. 그리고, 정수장에서 잘 정수되어 깨끗한 수돗물을 공급한다고 하지만 주철제 파이프의 내부의 녹 및 슬러지가 떨어져 나와 수돗물에 섞여 가정에 공급됨으로써 수돗물을 사용할 수 없는 지경에 이르기도 한다. 또한, 수돗물에 대장균이 서식하지 못하도록 염소를 첨가하여 살균처리한 다음 수돗물을 공급하고 있으나 염소는 인체 해롭기 때문에 바람직하지 못하고, 더욱이 주철관의 내부의 스케일이나 슬러지에는 다량의 대장군이 서식하기 때문에 인체에 더욱 악영항을 끼친다. 반면, KS제품의 PVC파이프는 녹슬지 않고 반영구적인 장점을 가지고 있으나 강도에서 주철제 파이프에 떨어진다.However, the cast iron pipe is corroded well so that not only the rust inside, but also sludge is entangled, so the water flow rate decreases. In addition, if the cast iron pipe is rusted, it can be easily broken when large fluctuating load or impact is applied, causing water resources to be wasted due to the leakage of tap water, and it also requires a lot of maintenance costs because it has to be dug and replaced frequently. In addition, it is well purified at the water purification plant to supply clean tap water, but the rust and sludge inside the cast iron pipes are separated and mixed with the tap water to be supplied to the home, where tap water cannot be used. In addition, chlorine is added and sterilized so that E. coli is not inhabited in the tap water, but the tap water is supplied. More adverse effects. On the other hand, PVC pipes of KS products do not rust and have semi-permanent advantages, but fall on cast iron pipes in strength.

이러한 점들 때문에 최근 합성수지제로 된 이중파이프가 많이 제안되고 있지만, 이러한 합성수지제 이중파이프의 대부분은 내부파이프의 외부에 외부파이프가 나선형으로 감긴 구조를 가지고 부식이 잘 되지 않는다는 장점은 가지고 있지만, 한국특허공고 제86-1356호에 개시된 열가소성 플라스틱으로 되는 2중 파이프의 제조장치와 같이 복잡한 성형장치에 의하여 복잡한 성형과정을 거쳐야 하기 때문에 제조원가가 많이 들어 값이 비싸고, 여전히 염소를 제거할 수 없을 뿐만 아니라 내부의 슬러지에 다량의 대장균이 서식하기 때문에 수돗물을 인체에 유익한 상태로 공급할 수 없다는 문제점을 가지고 있다.Due to these points, a large number of double pipes made of synthetic resins have recently been proposed. However, most of the double pipes made of synthetic resins have a structure in which the outer pipes are spirally wound on the outside of the inner pipes and are not easily corroded. Since the molding process is complicated by a complex molding apparatus such as the manufacturing apparatus of a double pipe of thermoplastic plastic disclosed in No. 86-1356, the manufacturing cost is high and it is expensive, and it is still impossible to remove chlorine, Since large amounts of Escherichia coli live in the sludge, tap water cannot be supplied in a beneficial state to the human body.

본 출원인들은 고강도 PVC파이프를 개발하고자 연구를 계속하여 오던 중, 산업 폐기물인 석고분진이 TP-, WS-P, CaO등을 함유하고 있다는 점에 착안하여 기존의 충격 보강제인 MBS대신에 석고분진을 사용하므로서 인체에 무해한 고강도의 PVC파이프를 개발하게되었다.Applicants have been working to develop high-strength PVC pipes, while gypsum dust, industrial waste, contains TP-, WS-P, and CaO. By using it, we have developed a high-strength PVC pipe that is harmless to humans.

본 발명은 TP-, WS-P, CaO등을 함유하고있는 석고 분진을 이용하여 인체에 무해하고 고강도의 PVC파이프제조에 관한 것으로 현재 사용되는 KS제품의 PVC파이프보다 우수한 물리적, 기계적 성질을 얻는 것을 목적으로 한다.The present invention relates to the manufacture of PVC pipe of harmless and high strength using gypsum dust containing TP-, WS-P, CaO, etc., to obtain better physical and mechanical properties than PVC pipes of KS products. The purpose.

또한, 본 발명의 다른 목적은 폐기물의 사용으로 생산단가의 절감 및 환경 문제 해결에 기여하는 것이다.In addition, another object of the present invention is to contribute to the reduction of production cost and environmental problems by the use of waste.

상기 목적을 달성하기 위하여, 본 발명에서는 남해화학의 부산물인 석고와 기타 복합체, 무기물을 혼합하여 PVC파이프를 제조한다.In order to achieve the above object, in the present invention, PVC pipe is prepared by mixing gypsum and other composites and inorganic materials which are by-products of Namhae Chemical.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

본 발명은 폐기물을 이용하여 인체에 무해하고 고강도의 PVC파이프 제조에 관한 것이다.The present invention relates to the production of high-strength PVC pipe harmless to the human body using waste.

본 발명에 사용된 폐기물은 남해화학에서 생산되는 분진으로 그 생산량과 소비량 및 석고성분의 조성은 [표 1] , [표 2] 에 주어졌다.Waste used in the present invention is dust produced by Namhae Chemical, and its production, consumption and composition of gypsum components are given in [Table 1] and [Table 2].

본 발명에서는 PVC수지에 첨가되는 고가의 충격보강제인 MBS대신에 TP-, WS-P, CaO 등을 함유하고 있는 남해화학에서 대량 발생하는 산업부산물인 분진을 사용하므로서 현재 사용되는 KS제품의 파이프보다 우수한 물리적, 기계적 성질을 얻고자 석고분진의 량에 따라 다음과 같은 방법으로 수행하였다.In the present invention, instead of MBS which is an expensive impact modifier added to PVC resin, it uses dust, which is a large amount of industrial by-products produced in Namhae Chemical, which contains TP-, WS-P, CaO, etc. In order to obtain excellent physical and mechanical properties, according to the amount of gypsum dust was carried out in the following way.

남해화학에서 얻어지는 분진은 입자의 크기가 대체로 40-200mesh로 분진의 발생 지역에 따라 성분의 차이가 있어 이에 대해서 복합재료를 제조한다.The dust obtained from Namhae Chemical has a particle size of 40-200mesh, and there is a difference in composition depending on the dust generation area.

상기한 바와 같이 이루어진 본 발명에 따른 PVC파이프는 현재사용중인 KS제품의 PVC파이프보다 우수한 물리적, 기계적 성질을 얻을 수 있다.PVC pipe according to the present invention made as described above can obtain physical and mechanical properties superior to the PVC pipe of the current KS products.

상기한 바와 같이 구성된 본 발명에 따른 PVC파이프는 다음과 같은 효과를 가져온다.PVC pipe according to the present invention configured as described above has the following effects.

첫째, 남해화학에서 대량으로 발생하는 산업부산물인 분진은 막대한 비용을 들여 해안에 매립 또는 폐기되고 있는데 이들 분진에는 10종의 원소가 포함되어 있어 이의 활용은 오염방지 뿐만 아니라 폐기물의 재활용으로도 이용되며First, dust, a large industrial by-product of Namhae Chemical, is landfilled or disposed of on the shore at an enormous cost. These dusts contain 10 kinds of elements, which can be used not only to prevent pollution but also to recycle waste.

둘째, 기존의 PVC에 사용되는 고가의 안정제와 충격보강제인 MBS대신 산업부산물의 재활용으로 인장강도와 물성을 높여서 중소기업이나 벤쳐기업에 경쟁효과와 창업에 도움을 준다.Second, by increasing the tensile strength and physical properties by recycling industrial by-products instead of MBS, which is an expensive stabilizer and impact modifier used for PVC, it helps the SMEs and venture companies to compete and start up.

Claims (1)

석고 분진을 함유한 고강도 PVC파이프.High strength PVC pipe with gypsum dust.
KR1019990021265A 1999-06-08 1999-06-08 High-Strength PVC Pipe with Gypsum KR20010001811A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100523828B1 (en) * 2002-11-12 2005-10-24 정한석 Three Layer polyethylene drain pipe and the manufacturing process
KR101298664B1 (en) * 2011-04-20 2013-08-21 주식회사 명성화학 High strength poly(vinylchloride) resin comprising gypsum and pipe made from the same
CN103554770A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Low-temperature resistant high-toughness PVC (polyvinyl chloride) pipe
CN103554757A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Heat-resistant and impact-resistant pipe
KR101365743B1 (en) * 2012-07-26 2014-02-20 (주)피피아이평화 P.V.C. pipe having anti-freezing and soundproofing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100523828B1 (en) * 2002-11-12 2005-10-24 정한석 Three Layer polyethylene drain pipe and the manufacturing process
KR101298664B1 (en) * 2011-04-20 2013-08-21 주식회사 명성화학 High strength poly(vinylchloride) resin comprising gypsum and pipe made from the same
KR101365743B1 (en) * 2012-07-26 2014-02-20 (주)피피아이평화 P.V.C. pipe having anti-freezing and soundproofing
CN103554770A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Low-temperature resistant high-toughness PVC (polyvinyl chloride) pipe
CN103554757A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Heat-resistant and impact-resistant pipe

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