• Title/Summary/Keyword: binder stiffness

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Effect of Binder's Concentration and Fiber Type on Mechanical Properties of Fragrant Fabrics (마이크로캡슐을 이용한 방향가공시 바인더 농도 및 섬유 종류에 따른 물성)

  • 김혜림;송화순
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.7
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    • pp.1029-1036
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    • 2004
  • The fragrant fabrics were prepared by treatment with eucalyptus microcapsules. 100% cotton fabric, 100% polyester fabric and 100% wool fabric were used as test specimens. Using pad-dry-cure method, microcapsules were attached on each specimen by acrylic binder under conditions of varying concentration. Surface property, stiffness, and air permeability of fragrant fabrics were evaluated. As increasing concentration of binder, add-on yield was increased. Add-on yield was decreased with increasing laundering cycle, especially in polyester fabric. As the concentration of binder was increased, the properties of stiffness and air permeability were decreased. Also it fumed out that pad-dry-cure method was not suitable to polyester fabric.

Optimization of Self-crosslinking Comonomer Composition of Polymer Binder for DTP Pigment Ink (DTP 안료 잉크용 고분자 바인더의 Self-crosslinking 공단량체 조성 최적화 연구)

  • Han, Minwoo;Kwon, Woong;Park, Seongmin;Jeong, Euigyung
    • Textile Coloration and Finishing
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    • v.32 no.1
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    • pp.19-26
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    • 2020
  • The previous study reported that the quaternary copolymer of MMA, BA, MAA, and NEA was expected to be a good monomer composition for a binder polymer with good rubbing fastness for digital textile printing(DTP) pigment ink. However, the rubbing fastness of the dyed fabric with the quaternary copolymer binder containing pigment ink is not enough to be commercially used. Therefore, this study aims to optimize MMA:BA:MAA:NEA composition for improved rubbing fastness. And the binder polymer with various MMA:BA:MAA:NEA compositions were synthesized using miniemulsion polymerization. The particle size, viscosity, molecular weight, and Tg of the synthesized binder were evaluated. And the color strength and rubbing fastness of the black pigment ink dyed cotton fabrics with the prepared binders were also evaluated. Then, the stiffness of undyed and dyed cotton fabrics were evaluated to investigate the changes in touch as the binder structure changes.

Application Technology of Environmental-friendly Starch-based Biobinder and Synthesized Binder in order to Substitute SB Latex for Paper Coating (1) - Application of Substitute Binder for Pre-coating Layer - (SB latex 대체용 친환경 전분계 바이오바인더 및 합성바인더의 적용 기술 개발 (제1보) - 대체용 바인더의 Pre-coating 적용 -)

  • Lee, Yong Kyu;Kim, Sun-Goo;Won, Jong Myoung;Kim, Young-Hun
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.5
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    • pp.134-140
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    • 2015
  • This study was carried out to evaluate whether EVAc, acryl latex and biobinder could substitute the part of SB latex for pre-coating color formula or not. Different coating colors prepared through the substitution of 30% SB latex with EVAc, acryl latex, and biobinder were applied for pre-coating layer. 100% SB latex is used as a binder for top coating color. The optical properties, gloss, roughness, stiffness, dry- and wet-pick strength were measured. There were no significant differences in the brightness, whiteness, opacity, roughness, ink set-off and gloss of paper coated with 5 different coating colors. However the stiffness, dry- and wet-pick strength were somewhat lower than those of conventional coating color which 100% SB latex was used as a binder. Although the part of SB latex could be substituted with EVAc, acryl latex and biobinder without sacrificing the qualities of coated paper. Further researches on the improvement of stiffness, dry- and wet-pick strength, and the optimization of rheology of coating color in order to improve the qualities of coated paper are strongly recommended.

Effect of Particle Sizes of Polymer Binders for Pigment Inks on Touch of Fabrics (안료 잉크용 바인더의 입자 크기가 직물의 태에 미치는 영향)

  • Park, Seongmin;Han, Minwoo;Jeong, Euigyung
    • Textile Coloration and Finishing
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    • v.32 no.4
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    • pp.226-231
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    • 2020
  • This study investigated effect of particle sizes of polymer binders for digital textile printing(DTP) pigment inks on touch of fabrics. The polymer binders were synthesized via miniemulsion polymerization of methyl methacrylate(MMA), butyl acrylate(BA), N-ethylolacrylamide(NEA) and methacrylic acid(MAA). The prepared binders were applied to black pigment inks and those black pigment inks were used to dye cotton fabrics. Then, color strength, rubbing fastness, stiffness, surface and bending properties of the dyed fabrics were investigated. Depending on the particle size of the polymer binder used, color strength, friction fastness, stiffness, surface and bending properties change. Generally, the larger the particle size of the polymer binder, the softer properties.

Evaluation of the Asph81t Mixture Performance with Waste Materials

  • Lee, Kwan-Ho;Lovell, C
    • Geotechnical Engineering
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    • v.12 no.3
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    • pp.17-34
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    • 1996
  • The objective of this paper is to evaluate the asphalt mixture performance with pyrolyzed carbon black(CBP) and air -cooled iron blast furnace slag. Marshall mix design was performed to determine the optimum binder content, The optimum binder content ranged from 6.3 percent to 7.75 percent. Dynamic creep testing was carried out using mixtures at the optimum binder content. Based on the test results, the use of pyrolyzed carbon black and slag in the asphalt pavement showed a positive result, such as the increase of Marshall stability, the decrease of the strain rate and the decrease in the mix stiffness rate at high temperature(5$0^{\circ}C$) and 137.9 kPa confinement. Within the limits of this research. it was concluded that pyrolyzed carbon black as an additive and slag as a coarse aggregate could be used to produce an asphalt paving mixture that has good stability, stiffness, and rutting resistance.

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Characteristics of Dynamic Shear Modulus Mastercurve of Aged or Unaged Asphalt Binders (동전단 마스터곡선을 이용한 아스팔트 바인더의 노화 특성 평가)

  • Yun, Tae Young;Ham, Sang Min;Yoo, Pyeong Jun
    • International Journal of Highway Engineering
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    • v.15 no.1
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    • pp.87-94
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    • 2013
  • PURPOSES: To characterize the aging effect on asphalt binder, dynamic shear modulus mastercurve of two typical asphalt binders are developed. METHODS: To develop dynamic shear modulus mastercurve, dynamic shear modulus at high temperature and creep stiffness at low temperature are measured by temperature sweep test and bending beam rheometer test, respectively. RESULTS: It is observed that the aging effect on asphalt binder can be clearly observed from dynamic shear modulus mastercurve and the mastercurve can be utilized to predict behavior of asphalt binder at wide range of temperature. CONCLUSIONS: It is confirmed that SBS 5% modified binder has more desirable mechanical property at low and high temperature as a pavement material comparing to PG64-22 binder and the mastercurve is an effective tool to evaluate the property of asphalt binder.

Manufacturing of Multi-Layer Coated Paper with Eco-Friendly Bio-Binder for Cost Saving (1) - Application for Pre-Coating Layer - (친환경 원가 절감형 바이오바인더를 이용한 다층 도공지 제조(제1보) - Pre-coating층에 대한 적용 -)

  • An, Guk Heon;Choi, Ki Soon;Won, Jong Myoung;Lee, Yong Kyu
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.46 no.6
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    • pp.63-70
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    • 2014
  • Part of SB latex in pre-coating color was substituted with newly developed starch-based bio-binder in order to investigate the effect of starch-based bio-binder in pre-coating color on the properties of coating color and coated paper. Smoothness and gloss of coated paper were decreased with the increase of bio-binder substitution ratio. Brightness and whiteness did not show the significant changes, but stiffness was improved with bio-binder. Ink set-off, dry-pick and wet pick were decreased with the increase of bio-binder substitution ratio. In general, when all SB latex is substituted with bio-binder, ink set-off, dry- and wet-pick were deteriorated. However, it was found that if the bio-binder substitution ratio is controlled below 50%, similar qualities with coated paper manufactured by the use of SB latex binder can be obtained.

Binder-free Tungsten Carbide Fabricated by Pulsed Electric Current Sintering

  • Shimojima, K.;Hosokawa, H.;Nakajima, T.;Mizukami, M.;Yamamoto, Y.
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09a
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    • pp.621-622
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    • 2006
  • In this paper, we show some experimental results of binder-free WC sintered by Pulsed Electric Current Sintering (PECS) also known as Field Assisted Sintering Technology (FAST). These binder-free WC have extremely hardness and stiffness. However, these mechanical properties are dependent on the sintering condition, e.g., maximum temperature, applied pressure, etc. We show some relationship between mechanical properties and sintering condition to improve to sinter the binder-free WC.

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Correlation Analysis of Binder Stiffness with Deformation Strength and Dynamic Creep Property of Asphalt Mixtures for Evaluation of Kim Test Applicability (바인더 Stiffness와 혼합물의 변형강도 및 동적크리프 특성과의 상관성 분석을 통한 김테스트 적용성 고찰)

  • Kim, Kwang-Woo;Doh, Young-Soo;Cho, Mun-Jin
    • International Journal of Highway Engineering
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    • v.7 no.4 s.26
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    • pp.91-102
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    • 2005
  • This study dealt with correlation analysis of binder stiffness with deformation strength and dynamic creep property of asphalt mixtures for evaluation of applicability of deformation strength $(S_D)$. Two aggregates, with maximum size of 13mm and eight binders were used to produce 16 different mixtures. The stiffness of binder $(G^*/sin\delta)$ was measured using DSR at $64^{\circ}C$. Final deformation(FD) and dynamic stability(DS) were measured by dynamic creep (DC) test, and SD was measured by Kim test for each mixture. Results of correlation analysis between $G^*/sin\delta$, and $S_D$, m and DS showed that correlation with binder stiffness and deformation strength was the highest $(R^2>0.88)$. There was good correlation between DS, FD with $S_D$. The results indicated that rut-resistance property of mixture is better reflected in $S_D$ test than FD or DS of dynamic creep test. Therefore, it is concluded that $S_D$ can be possibly used for evaluation of rut resistance of asphalt concretes with a good reliability if the procedure is standardized.

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Laboratory Performance Evaluation of Recycled Asphalt Binders with Differing Rejuvenators (재생 첨가제를 활용한 재활용 아스팔트 바인더의 실내 공용성 평가)

  • Kim, Yeong Min;Im, Jeong Hyuk;Hwang, Sung Do;Jeong, Kyu Dong;Rhee, Suk Keun
    • International Journal of Highway Engineering
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    • v.17 no.6
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    • pp.55-63
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    • 2015
  • PURPOSES : The objective of this study is to investigate the properties of recycled asphalt binders with five different rejuvenators, in order to evaluate the applicability of the recycled asphalt binders compared with the original asphalt binder. METHODS : In order to simulate recycled asphalt binders, fresh asphalt binders are aged by various Superpave aging procedures, such as the rolling thin-film oven (RTFO) and the pressure aging vessel (PAV). Then, selected rejuvenators are added to the aged asphalt binders in the amount of 5%, 10%, and 15%. The asphalt binder properties are evaluated by the dynamic shear rheometer (DSR), the rotational viscometer (RV), and the bending beam rheometer (BBR). In this study, AP-5 (penetration grade 60-80, PG 64-16) asphalt binder is used. A total of five types of rejuvenators are employed. RESULTS AND CONCLUSIONS : When considering aged asphalt without a new asphalt binder, it seems that the percentage of rejuvenator used in Korea is a bit too low, and that it fails to possess the characteristics of the original binder. From the current practice of evaluating the properties of recycled binder based on penetration ratio only, the amount of rejuvenator required is similar for the long-term-aged binder, but is excessive for the longest-term aged binder, causing deterioration of workability and stiffness of the recycled binder.