• 제목/요약/키워드: inorganic binder

검색결과 159건 처리시간 0.025초

종이도공용 고광택 유기안료의 적용에 관한 연구(제1보) -유기안료의 종류가 도공지 품질에 미치는 영향- (Studies on the application of high-gloss plastic pigment for paper coating (I) - Effect of the type of plastic pigment on the quality of coated paper -)

  • 박규재;정경모;황석우;이용규
    • 한국펄프종이공학회:학술대회논문집
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    • 한국펄프종이공학회 1999년도 춘계학술발표논문집
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    • pp.1-6
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    • 1999
  • A study was made to determine the effect of plastic pigment on the coating structure and printability of coated paper. Three basic plastic pigments were investigated such as solid-bead type of plastic pigment, binder type of plastic pigment and hollow type of plastic pigment. In the systems investigated, it was observed that particle shape and structure of plastic pigment had influenced on the rheology of coating color, the state of packing, and the properties of coated paper. The materials investigated were restricted to plastic pigments commonly uesd in paper coating formualtion. Inorganic pigments used in this research were kaolin clay which is platelets and calcium carbonate which is rhombic. Three kinds of plastic pigments were blended in the color made up with two inorganic pigments, respectively. The combination of pigments were carried out (1) to determined the effect of paticle structure of plastic pigment on the state of dispersion of coating color, (2) to observe the effect of temperature of calender on the property of coated paper prepared with plastic pigment. The data indicated that binder and hollow type of plastic pigment had the best results on improving the properties of coated paper such as paper gloss, opacity and air permeability ect. and solid-bead type of plastic pigment in the next place.

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One-step liquid-phase fabrication of adhesive and protective inorganic layer for carbon nanotube field emitters

  • Jeong, Hae-Deuk;Kim, Ho-Young;Jeong, Hee-Jin;Jeong, Seung-Yol;Han, Joong-Tark;Lee, Geon-Woong
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2010년도 춘계학술대회 논문집
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    • pp.43-43
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    • 2010
  • we have investigated the field emission characteristics of the CNT/TEOS hybrid thin films fabricated by a spray method. It is found that the CNT/TEOS hybrid emitters show high current density, low turn on field, and long-term emission stability compared to the CNT emitters. These efficient field emission characteristics of the CNT/TEOS hybrid emitters are attributed to the TEOS sol, acting as a protection layer of nanotube emitter by surrounding the nanotube tip as well as a binder material to enhance the adhesion of nanotube emitters to the substrate. Therefore, the CNT/TEOS hybrid emitters could be utilized as an alternative for the efficient and reliable field emitters.

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경량기포콘크리트(ALC) 패널을 건축물 외장 커튼월에 적용을 위한 도료의 기초적 연구 (Applications and Analysis of Exterior Paints for the Curtain Wall Panel System based on the Autoclaved Lightweight Concrete(ALC))

  • 이용수;라현주
    • 한국디지털건축인테리어학회논문집
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    • 제12권3호
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    • pp.59-66
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    • 2012
  • Autoclaved Lightweight Concrete(ALC) features such as a high performance insulation, the fire resistance, the advantage of easy handing construction, and lightweight panels applied the curtain wall system. ALC materials are certified as non-toxic environmental and eco-friendly productions. But ALC external panels mixed with blast furnace slag pounder and silica fume have to be coated with a stucco compound or plaster because of resisting the ambient environment. This study is that mixing tests to evaluate a performance analysis of exterior paints to be make-up pigments(organic or inorganic) coated with panel surface. Testing compared by KS F 2476; flow test, KS F 2426; compression strength test, KS F 2762; bond strength test. In results, the case of the inorganic binder, ratio of alumina cement : anhydrite is 90:10 to 80:20 at the highest level of intensity. In the case of the organic binder, adhesive strength rating at surface of ALC, the pullout strength is below 0.5 $N/mm^2$ but the normal concrete is over 2.0$N/mm^2$. A contents ratio of EVA resin is more than 3% and then bond strength is effectively.

황토 마감재의 배합비에 따른 압축강도 특성과 사용성 평가 (Usability and Strength Characteristics of Loess(Hwangtoh) Finishing Material by Different Ratios of Ingredients)

  • 리신호;윤성수;서교;송창섭;한충수
    • 농촌계획
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    • 제11권3호
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    • pp.53-57
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    • 2005
  • Up to recently building are constructed focusing on the convenience of residential condition. However, environmental-friendly materials is required for construction as people are spending more time inside buildings and causes of many problems like sick-building syndrome are known due to the noxious gases and polluted air originated from construction materials. Although loess(hwangtoh) is an environmental-friendly material, it has limitations in compressive strength far a construction material. The purpose of this study is to suggest the optimal ratio of loess(hwangtoh) mortar by tests of compressive strength comparing with standard strength of floor finishing mortar and evaluate the usability of loess(hwangtoh) mortar for floor finishing material through an impact test, a cracking test and a abrasion test. Based on the results of this study, 86% of loess(hwangtoh) and 14% of inorganic binder is suggested for the optimal mixture ratio of loess(hwangtoh) mortar. Moreover, the characteristics of loess(hwangtoh) is suitable for floor finishing material in impact, crack, abrasion.

전자선을 이용한 PVDF-HFP/Silylated Al2O3가 코팅된 리튬 이차 전지용 폴리에틸렌 분리막의 전기화학적 특성 연구 (Electrochemical Study on PVDF-HFP/Silylated Al2O3-coated PE Separators using the Electron Beam Irradiation for Lithium Secondary Battery)

  • 손준용;신준화;노영창
    • 방사선산업학회지
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    • 제4권4호
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    • pp.359-364
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    • 2010
  • PVDF-HFP (binder)/silylated alumina (inorganic particle)-coated PE (polyethylene) separators were with various compositions of binder and inorganic particle were prepared by a dip-coating process with humidity control (R.H. 25% and 50%) using electron beam irradiation. The morphology of the coated PVDF-$HFP/Al_2O_3$ layer with various compositions of PVDF-HFP and $Al_2O_3$, and humidity condition was found to be an important factor in determining ionic conductivity of the prepared separators. The PVDF-$HFP/Al_2O_3$ (5/5)-coated PE separator prepared at R.H. 50% followed by electron beam irradiation at 200 kGy was applied for lithium-ion polymer battery and the cell test results showed improved high-rate discharge performance and better cyclic stability compared to the cells with the bare PE and the PVDF-HFP-coated PE separators.

클링커 바인더 기반 무기계 혼합재를 활용한 시멘트 모르타르의 치유성능 평가 (Self-healing Performance Evaluation of Cement Mortar with Inorganic Additives Based on Clinker Binder)

  • 서정일;최윤석;박병선;이광명
    • 한국건설순환자원학회논문집
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    • 제10권4호
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    • pp.561-568
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    • 2022
  • 본 연구에서는 무기계 재료인 클링커 바인더, Calcium sulfoaluminate(CSA), 그리고 sodium sulfate(Na2SO4)가 포함된 시멘트 모르타르의 물리적 특성 및 자기치유성능을 평가하였다. 압축강도 및 휨강도 측정을 통해 시멘트 모르타르의 물리적 강도를 알아보고, 정수위 투수시험 및 기체확산시험을 통해 치유성능을 평가하였다. 또한 광학현미경과 주사전자현미경을 통해 균열부 내 침전된 치유생성물을 시각적으로 관찰하였다. 그 결과, 클링커 바인더 기반 무기계 혼합재의 혼입은 시멘트 모르타르의 초기 및 28일 재령 강도를 약 20 % 증진시켰다. 치유성능 평가방법에 따라 치유율의 편차가 존재하고 과소평과 되는 경향을 나타냈으나, 무기계 혼합재의 시멘트 모르타르 혼입 시 0.3 mm 균열 내부에서 CaCO3가 주요 치유생성물로 침전되어 치유성능을 향상시켰다.

바인더 첨가에 따른 $Al_{18}B_4O_{33}/AC4CH$의 파괴인성에 관한 연구 (A Study on Fracture Toughness Properties of $Al_{18}B_4O_{33}/AC4CH$ by Binder Additives)

  • 신동인;정재욱;박원조;허선철;김형진
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2003년도 춘계학술대회
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    • pp.61-66
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    • 2003
  • In this paper, the effect of binder additive on the fracture toughness was metal matrix composite produced by squeeze casting method. In this study using the matrix is AC4CH and reinforcement used Aluminum borate whisker. Each MMC was produced by add inanimate binder ($SiO_2,\;Al2O_3,\;TiO_2$) to whiskers for increase the binding together of whiskers. Fracture toughness test were carry out in accordance with the ASTM E-399 standard test method, W=25mm, b=12.5mm CT(half size) specimen. However Base metal AC4CH was not meet the qualification of $P_m/P_Q<1.1$, so that test were performed $J_{IC}$ test. $K_{J_{IC}}$ value was measuring by $J_{IC}$ value change into $K_{IC}$. $J_{IC}$ test was carry out in accordance with the ASTM 1820.

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