• 한국산학기술학회논문지
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• 제14권2호
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• pp.943-948
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• 2013

본 연구에서는 콘크리트의 내구수명 개선을 위한 친환경 수지인 UM수지 화합물을 혼합한 시멘트 모르타르의 특성을 연구하였다. 친환경수지인 UM수지를 일반 시멘트 모르타르와 일정비율로 혼합하였다. UM수지를 혼합한 폴리머 시멘트 모르타르에 대하여 압축강도, 쪼갬인장강도, 휨강도, 흡수율 및 내약품성 실험을 수행하였다. 재료실험결과 친환경 수지인 UM수지를 함유한 시멘트 모르타르는 압축강도와 쪼갬인장강도는 감소하는 반면 휨강도와 흡수율 및 내약품성에서는 성능이 개선되었다. 친환경 UM수지 폴리머 시멘트 모르타르는 콘크리트 내구성 보강성능이 우수하였다.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2008년도 제38차 학술발표대회
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• pp.95-97
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• 2008

In this study eco-friendly wax remover for printing table of flat screen was investigated. Seven organic solvents, diethylene glycol monomethyl ester, triethylene glycol monomethyl ester, triethylene glycol monobutyl ester, tripropylene glycol monomethyl ester, dimethyl sulfoxide(DMSO), trichloro ethylene(TCE), tolune, were used as resin wax remover. The resin wax solubility with solvents was investigated. DMSO was found to be the most suitable eco-friendly resin wax remover.

• 한국인쇄학회지
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• 제29권1호
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• pp.45-59
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• 2011

According as gradually increasing the demand for Eco-friendly products it has been progressed fairly development at a field of printing and printing inks. The Inks are used by soy oil beginning of ink industry for preventing environment. Now it is possible to make Eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents for preventing environment. But There is some problems if using vegetable ester to inks. Vegetable ester has high solubility, it causes misting and low viscosity of the Inks. So resin is required high performance. Thus, in this paper, I studied about the properties variation of the Varnish and inks According to using the phenolic modified rosin ester and Soy oil Methyl esters. The compared in order of average molecular weight by the GPC method, rheological properties were found by rotational rheometer, and emulsion behavior were compared by high speed emulsification tester.

• 콘크리트학회논문집
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• 제25권3호
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• pp.313-320
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• 2013

이 연구에서는 환경을 고려한 고성능 보수 보강재료 개발을 위하여 섬유를 보강한 폴리머 시멘트 모르타르의 특성을 연구하였다. 친환경 수지인 UM 수지를 일반 시멘트 모르타르와 일정 비율로 혼합하였다. 강도 증진의 영향을 확인하기 위해서 PVA 섬유, 강섬유 그리고 PVA섬유와 강섬유를 일정한 비율로 혼합한 하이브리드 섬유를 일정한 비율로 첨가하였다. 강도특성을 파악하기 위하여 섬유를 보강한 폴리머 시멘트 모르타르에 대하여 압축강도, 쪼갬 인장강도, 휨강도 실험을 수행하였다. 내구성을 파악하기 위하여 폴리머 시멘트 모르타르에 대하여 흡수율 실험, 내약품성 실험을 수행하였다. 실험 결과 UM 수지 폴리머 시멘트 모르타르는 내구성능이 개선되었고, 이러한 폴리머 시멘트 모르타르에 섬유를 보강하면 콘크리트 및 모르타르의 취약점인 인장강도와 휨강도가 증가하였다. 향후 외부 노출된 콘크리트 구조물의 내구성 향상을 위한 보수보강재료로 사용성을 확인하였다.

• 접착 및 계면
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• 제11권4호
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• pp.168-173
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• 2010

할로겐 함유 난연 화합물은 인체에 무해하고 유해가스 발생이 없는 환경 친화적인 소재로 대체되어가고 있다. 반도체 소자의 밀봉용 소재로 사용되는 에폭시 수지 조성물도 친환경적인 소재로 만들기 위해서, 에폭시 수지의 자소화에 관해 많은 연구가 이루어지고 있다. 본 연구에서도 신규 에폭시 수지(E3)를 사용하여 할로겐계 화합물을 전혀 함유하지 않는 자소성 에폭시 수지 조성물을 제조하였다. 새로 만들어진 에폭시 수지 조성물(EMC-1)은 UL 난연 V0를 갖고 5 wt% 분해 온도가 $451.9^{\circ}C$로, 할로겐계 난연제나 삼산화안티몬 등을 첨가하지 않고도 난연성이 우수하고 열분해성, 내열성 등이 우수하게 나타나 친환경 소재로 적용할 수 있다.

• 한국인쇄학회지
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• 제30권1호
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• pp.1-19
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• 2012

According as gradually increasing the demand for eco-friendly at the printing process, it has been progressed fairly development. Especially, the inks are used by soy oil beginning of ink industry for preventing environment, it is possible to make eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents at all for preventing environment. These eco-friendly inks have a benefits they are able to use the renewable resource. But basically vegetable oils have that reduce the VOC(Volatile Organic Compound) and high viscosity, high solubility properties. So if the vegetable oils use in the ink, set off problem occur on the paper because of slow drying time. In case of vegetable ester, it has similar the molecular weight and kinetic viscosity with hydrocarbon solvent, it is able to control the power of dilution about the resin. So, it has benefit that solve the problem of the existing eco-friendly inks. In this study, different types of ester were made by six types of vegetable oils and used ester in the varnishes and inks properties are comparison with hydrocarbon solvent based ink. By considering the intrinsic properties of vegetable oil, ester used to analyze the changes in ink properties, using ester varnish is applied to study the rheology characteristics and emulsification with inks.

• Bulletin of the Korean Chemical Society
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• 제33권10호
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• pp.3413-3416
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• 2012

Phenol-free resin was synthesized and its printing ink properties were investigated. The phenol-free resin was produced by esterification of poly phthalate and Diels-Alder adduct of rosin anhydride. Compared to rosin modified phenolic resin, eco-friendly phenol-free resin showed better vehicle properties in terms of gloss, yellowing, runability, and storage stability. The results suggest the utility of phenol-free resin instead of conventional rosin modified phenolic resin.

• 한국응용과학기술학회지
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• 제34권4호
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• pp.851-856
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• 2017

스테인레스 스틸에 대한 도료수지의 기계적 특성은 SEM, FT-IR, 인장특성, 그리고 [NCO]/[OH]의 mole %, 입도분석에 의해 측정하였다. 친환경적인 도료에 관한 관심이 고조됨에 따라 스테인레스 스틸 등의 금속에 코팅하는 무용제 도료를 합성하였다. 폴리올, MDI, 충진제, 실리콘 계면활성제, 촉매 등이 함유된 기존 도료수지보다 식물성 오일이 함유된 폴리올, MDI, 충진제, 실리콘 계면활성제, 촉매로 이루어진 합성 도료 수지의 코팅이 내구력과 강도가 양호하였다. 견고한 도료 수지의 기계적 특성은 식물성 오일이 함유된 폴리올로 합성된 폴리우레탄 코팅의 접촉각이 더 컸으며, [NCO]/[OH]의 mole%가 증가함에 따라 강도가 증가하였다. 결론적으로 식물성 오일이 함유된 친환경 도료가 스테인레스 스틸 같은 금속물질의 부식방지용 코팅에 좋은 물질이다.

• 한국도로학회논문집
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• 제19권6호
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• pp.57-66
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• 2017

PURPOSES : This study develops eco-friendly asphalt reinforcement materials applicable to bridge deck pavement. The main purpose is to ensure highly reliable quality applicable to structures and the possibility of practical application. The main target of the study is to develop materials that are environmentally friendly and capable of improving performance. METHODS : The application of double-reinforcement fiber improves the performance of the road pavement. 1. We use recycled film for application of sheet-typed reinforcement. 2. We use preprocessing fibers to reinforce the properties of composite pavement materials. RESULTS : The developed products may produce materials that fit the purpose of achieving stability and environmental friendliness. Sheet-typed reinforcements use more than 50% recycled resin. The most important type of damage to the asphalt layer is deflection (plastic deformation). These products have a very high deflection resistance of not less than 6,000 cycles/mm. In addition, all performance is excellent. Thus, it will be easier to access the field in the future. CONCLUSIONS : Fiber-reinforced asphalt pavement showed excellent performance. Sheet-typed reinforcements containing 50% recycling resin produced good performance in terms of functionality as well as environmental friendliness. Thus, enhancing the field applicability will enhance the usability of the reinforcements.

• 한국환경복원기술학회지
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• 제13권4호
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• pp.42-51
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• 2010

The purpose of this study is to analyze the characteristics of environment-friendliness of Root Barrier materials based on comprehensive experiments on harmfulness of Root Barrier materials and fish toxicity of Oryzias latipes mortality to verify eco-toxicity of each method of construction and Root Barrier material, which are to be applied by taking eco-toxicity into account when building ecological flows in upper areas on natural and artificial grounds. As a result, the following conclusions have been reached in this study: 1. In regard of the harmfulness analyzed, each material showed a different result of analytical value in each lab tank. Compared to lab tank, pH (la), DO (lb), T-N (VI) and T-coli (la) were in the same grade, but COD, SS, T-P and F-coli were less than that of control, respectively increased or decreased by material were analyzed. 2. In the experiment of fish toxicity, Barrier sheet was found to have 66.7% of fish mortality, indicating strong fish toxicity. Synthetic rubber system root barrier sheet (20.0%) was analyzed to have medium fish toxicity, while Synthetic resin system root barrier-waterproof sheet (3.3%), Synthetic rubber system membrane root barrier sheet (3.3%) and Synthetic resin system root barrier sheet (0.0%) showed relatively lower mortality and fish toxicity. To sum up such results as found in the experiment mentioned so far, the values of harmfulness and root penetration resistance analyzed were different in each lab tank, but there was absolutely little correlation with the mortality gained from the experiment on fish toxicity. In the experiment of fish toxicity, environment-friendly root barrier materials were analyzed, and it was found that Synthetic resin system root barrier sheet, Synthetic resin system root barrier waterproof sheet and Synthetic rubber system membrane root barrier sheet are highly environment-friendly. In contrast, Synthetic rubber system root barrier sheet was found to have medium-level environment-friendliness. Also, Barrier sheet was analyzed to have low environment-friendliness.