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양준호(Juneho Yang),유태욱(Taewook Yoo),이동준(Dongjun Lee),석종민(Jongmin Seok),나성택(Seongtaek Na) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The new recycled rubber material, in this study, was developed with recycling waste EPDM & FPM rubber. The crushing process in the specific shredder under high temperature could make the waste rubber pulverized and semidevulcanized. By the following continuous devulcanization process in twin screw extruder, these pulverized rubber particles were almost devulcanized and more fine powder with the size of 50~150㎛ were acquired. The performances of these two processes were from the frictional shear stress and also optimized individually by DFSS(Design For Six Sigma). This rubber powder would be a major component in making a new recycled rubber compound. As a result of the measurement of mechanical properties and durability performances of molded products, this compound could meet material specification and be confirmed to have no trouble in compression mold test for manufacturing those products.
폐 라디에이터 엔드 탱크를 이용한 팬-슈라우드용 친환경 리컴파운드재료 개발
양준호(Juneho Yang),권문식(Moonsik Kwon),임태원(Taewon Lim),홍존희(Johnhee Hong),심휘섭(Hwuiseob Shim),정순안(Sunan Jeong) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The new eco-friendly recompound material, in this study, was developed with recycling waste radiator end tank based on polyamide resin. The cleaning process for the removal of various contaminations in the waste radiator end tank and compounding process for the preparation of the resin for the injection of fan-shroud were optimized individually by Robust Design. As a result of the measurement of mechanical properties, this recompound material could meet material specification for radiator fan-shroud. Moreover, the durability and mold properties of fan-shroud molded product were confirmed by injection molding test and several environment resistance tests.
이동준(Dongjun Lee),양준호(Juneho Yang),유태욱(Taewook Yoo),김갑진(Kapjin Kim),이종순(Jongsoon Lee) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
To increase the molecular weight of the degraded nylon 6,6 by ethylene glycol, new chain extender was proposed, which can react with either the free amine group or the free hydroxyl group of degraded nylon 6,6. As a result of the application of new chain extender by 3 wt%, this paper classifies the molecular weight of degraded nylon 6.6 increased over 90% compared to virgin nylon 6,6.