Polypropylene과 Polyethylene으로 구성된 기공성 고분자 소재의 여과특성

안병길; 오경근; 최웅수; 권오관

Clean Technology, Vol.4, No.2, 32-40, December, 1998

Export Citation

Polypropylene과 Polyethylene으로 구성된 기공성 고분자 소재의 여과특성

Filtration Characteristics of Polymeric Porous Materials Composed of Polypropylene and Polyethylene

안병길, 오경근, 최웅수, 권오관

초록

Polypropylene(PP)과 polyethylene(PE) 분체를 혼합하여 공기정화용 여과재로 사용하기 위한 기공성 고분자 소재를 압출 소결법으로 제조하였다. PP와 PE로 구성된 기공성 고분자 소재는 녹는점이 낮은 PE가 용융되어 PP를 결합시킨 구조임을 주사전자현미경(scanning electron microscope) 분석으로 관찰할 수 있었으며, 고분자 소재의 압출 소결시 압출기 다이 헤드의 온도, 압출 속도, PE의 용융지수 및 첨가량 변화 등에 따른 기공성 고분자 소재의 기계적 물성과 여과특성 변화를 시험하였다. 일정한 압출기 헤드 다이 온도와 압출 속도하에서 압출 소결법으로 제조된 기공성 고분자 소재의 여과효율이 PE의 첨가량과는 비례 관계를 나타내었으나 PE의 용융지수에는 반비례 관계를 나타냄을 관찰할 수 있었다. 압출 소결법으로 제조된 기공성 고분자 소재의 여과특성을 시험한 결과, PP와 PE로 구성된 기공성 고분자 소재가 공기정화용 여과재로 적용될 수 있음을 확인할 수 있었다.

The polymeric porous materials which consist of polypropylene(PP) and polyethylene(PE) powder were prepared to apply to the air purification systems by extrusion sintering method. SEM analysis showed that a composite polymeric porous structure made up of PP and PE was obtained, where PE was melted and adhered to PP because the melting temperature of PE was lower than that of PP. The filtration characteristics and mechanical properties of polymeric porous materials were investigated by varying the head die temperature of the extruder, extrusion velocity, and the melt index and quantity of PE. The filtration efficiency was proportional to the quantity of PE but inversely proportional to the melt index of PE. The polymeric porous materials composed of PP and PE, which was made by extrusion sintering method, was found to be suitable for the filter element of the air purification system.

Keywords:extrusion sintering method;polymeric porous materials;filtration characteristics;filtration efficiency(+)

[References]

Herding K, Walter C, German Patent, 3413213, B01D (1984)
Pinchuk Ls, Goldade VA, Gromyko YV, "Magnetic Fibrous Polymer Material for Ultrafine Filtration of Liquids," 6th World Filtration Congress, Nagoya, Japan, pp. 940 (1993)
Gorodestskaya RK, Gracheva LI, "Use of Elastic Polyurethane Foam as a Filtering and Sorbing Material," Chemical Industry, No. 11, (653), pp. 13 ~ 18 (Rus.) (1991)
Koslow EE, U.S. Patent, 5,331,037, C08K (1994)
Dickenson C, "Filter and Filtration Handbook," Elsevier Science Publishers LTD, pp. 50 (1992)
Lee KS, Ahn BG, Choi US, Yoon HG, Moon TJ, Polym.(Korea), 21(6), 1022 (1997)
Orr C, "Filtration Principles and Practices," Marcel Dekker, Inc., pp. 3 (1977)

[1] Herding K, Walter C, German Patent, 3413213, B01D (1984)

[2] Pinchuk Ls, Goldade VA, Gromyko YV, "Magnetic Fibrous Polymer Material for Ultrafine Filtration of Liquids," 6th World Filtration Congress, Nagoya, Japan, pp. 940 (1993)

[3] Gorodestskaya RK, Gracheva LI, "Use of Elastic Polyurethane Foam as a Filtering and Sorbing Material," Chemical Industry, No. 11, (653), pp. 13 ~ 18 (Rus.) (1991)

[4] Koslow EE, U.S. Patent, 5,331,037, C08K (1994)

[5] Dickenson C, "Filter and Filtration Handbook," Elsevier Science Publishers LTD, pp. 50 (1992)

[6] Lee KS, Ahn BG, Choi US, Yoon HG, Moon TJ, Polym.(Korea), 21(6), 1022 (1997)

[7] Orr C, "Filtration Principles and Practices," Marcel Dekker, Inc., pp. 3 (1977)