• Title/Summary/Keyword: PET재활용

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A Study on the Dynamic Properties of Cement Mortar with Recycled PET Fiber (폐PET섬유를 혼입한 시멘트모르터의 역학적 특성에 관한 연구)

  • 김영근;김상철;김명훈
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2002.11a
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    • pp.77-86
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    • 2002
  • In this study we intended to investigate properties of cement mortar with recycled PET fiber, PE fiber, and PP fiber such as slump flow, compressive strength, tensile strength, and flexural strength. As results of experiment, several properties of specimen with recycled PET fiber were little low comparing those of specimen with PE fiber and PP fiber. But if we see from point of economy and recycle of industrial wastes, it has enough reason to be used. Compressive strength of specimen with recycled PET fiber at 56 days was about 10% higher, but tensile strength and flexural strength were lower than that of no-fiber.

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A Study on the Dynamic Properties of Cement Mortar with Recycled PET Fiber (폐PET섬유를 혼입한 시멘트모르터의 역학적 특성에 관한 연구)

  • Kim, Young-geun;Kim, Sang-cheol;Kim, Myung-hoon
    • Journal of the Korea Institute of Building Construction
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    • v.2 no.4
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    • pp.113-122
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    • 2002
  • In this study we intended to investigate properties of cement mortar with recycled PET fiber, PE fiber. and PP fiber such as slump flow, compressive strength, tensile strength, and flexural strength. At results of experiment. several properties of specimen with recycled PET fiber were little low comparing those of specimen with PE fiber and PP fiber. But if we see from point of economy and recycle of industrial wastes, it has enough reason to be used. Compressive strength of specimen with recycled PET fiber at 55 days was about 10% higher. but tensile strength and flexural strength were lower than that of no-fiber.

Stress-Strain Properties of recycled-PET Polymer Concrete (PET 재활용 폴리머 콘크리트의 응력-변형률 특성)

  • Jo, Byung-Wan;Park, Jong-Hwa;Park, Seung-Kook
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.05a
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    • pp.316-319
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    • 2004
  • Resins using recycled PET offer the possibility of a lower source cost of materials for making useful polymer concrete products. The purposed of this paper is to propose the model for the stress-strain relation of recycled-PET polymer concrete at monotonic uniaxial compression and is to investigate for the stress-strain behavior characteristics of recycled-PET polymer concrete with different variables(strength, resin contents, curing conditions, addition of silane and ages). The maximum stress and strain of recycled-PET polymer concrete was found to increase with an increase in resin content, however, it decreased beyond a particular level of resin content. A ascending and descending branch of stress-strain curve represented more sharply at high temperature curing more than normal temperature curing. In addition, results show that the proposed model accurately predicts the stress-strain relation of recycled-PET polymer concrete.

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Characteristics of Sulfuric acid corrosion of Recycled PET Polymer Concrete with Different Filler (충전재 변화에 따른 PET 재활용 폴리머 콘크리트의 황산 부식에 관한 특성)

  • Jo Byung Wan;Gu Ja Kap;Park Jong Hwa;Park Seung Kook
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.11a
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    • pp.719-722
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    • 2004
  • Resins using recycled PET offer the possibility of a lower source cost of materials for making useful polymer concrete products. The purposed of this paper is to form a part of reducing the damage of sulfuric acid, through investigating recycled PET polymer concrete, . immersed at sulfuric acid solution for 84 days. Recycled PET PC is excellent chemical resistance, resulting in the role of unsaturated polyester resin which consists of polymer chain structure accomplishes bond of aggregates and filler strongly. Also, Recycled PET PC, used fly-ash as filler, is stronger resistance of sulfuric acid corrosion than $CaCO_3$, because it is composed of $SiO_2$ and very strong glassy crystal structure. Therefore, Recycled PET PC, used fly-ash as filler, is available under corrosion circumstances like sewer pipe or waste disposal plant.

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The Experimental study on setting shrinkage of polymer concrete with recycled PET (재활용 PET를 이용한 폴리머 콘크리트의 경화수축에 관한 실험적 연구)

  • 조병완;태기호;윤영한;박재욱
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.816-821
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    • 2003
  • This paper deals with a reduction in the setting shrikage of polymer concrete using bentonite as shrinkage reducing agent. This study with polymer concrete using unsaturated polyester(UP) based on recycled PET waste was performed to verify the effect of various shrinkage reducing agent contents and the types of filler which are fly ash and $CaCo_3$. Setting stress induced by setting shrinkage was investigated in temrs of mechanical and chemical combination.

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Development of Synthetic Sizing Agent Using Recycling Polyethylene Terephthalate and its Sizing Efficiency (Part 2) - Sizing efficiency of modified PET - (재활용 PET를 활용한 합성 사이즈제 개발 및 종이의 내수성 부여에 관한 연구 (제2보) - 개질 PET의 내수특성 평가 -)

  • Park, Jae-Seok;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.42 no.2
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    • pp.95-101
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    • 2010
  • For the development of higher-sizing performance of paper, a sizing agent using recycled PET was synthesised. Polyester resin was extracted from wasted PET by subcritical hydrolysis and finally modified to synthetic sizing agent by mixing water-disperse PET with triphenyl phosphite(TPP). The modified PET was considered as an internal sizing agent in different wet-end papermaking conditions. The optimum condition in sizing efficiency was obtained in initial pH of 6.5 in case of rosin+alum system, and 7.5 in case of rosin+alum+PET system, respectively, and in addition amount of PET 3%. The sizing efficiency was also closely related according to the fiber properties of wet-end slurry, such as virgin fibres from UKP and recycled fibres from KOCC. The application of modified PET was good in strength improvement of paper, specially in tensile strength.

The Characterization of Recycle PE/PET/TPE Blend with Compatibilizers (폐 PE/PET/TPE Blends 제조와 상용화에 따른 특성 분석)

  • Kim, Dong-Hyun;Hwang, In-Sung;Kim, Jeong-Hun
    • Journal of Digital Convergence
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    • v.10 no.10
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    • pp.423-430
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    • 2012
  • This study focused on the characterization of recycle PE/PET/TPE blend with compatibilizers. The heat resistance and impact strength of a weak point on PET/HDPE blend has been improved. TPE added polyester-based recycle heat-resistant properties to $150^{\circ}C$ showed more than $50^{\circ}C$ higher than HDPE added. Elastomer applied is a significant increase in the impact strength, and then it is possible to apply for safety materials in industries requiring heat-resistance and elasticity. Also using PET blend compatibilizer improves the strength of the polyolefin resin. The mechanical properties of recycle HDPE and PET blend has been greatly improved, and the reduction in the size of the dispersed phase by the addition of compatibilizers on morphology characteristics were observed uniformity becomes.