간행물

한국고무학회> Elastomers and composites

Elastomers and composites update

  • : 한국고무학회
  • : 공학분야  >  화학공학
  • : KCI등재
  • :
  • : 연속간행물
  • : 계간
  • : 2092-9676
  • : 2288-7725
  • : 고무학회지(~1997)→엘라스토머(1998~)→Elastomers and Composites(2009~)

수록정보
수록범위 : 1권1호(1966)~52권3호(2017) |수록논문 수 : 1,518
Elastomers and composites
52권3호(2017년 09월) 수록논문
최근 권호 논문
| | | |

KCI등재

1Evaluation on Fatigue Characteristics of Tire Sidewall Rubber according to Aging Temperature

저자 : ( Namgyu Jun ) , ( Byungwoo Moon ) , ( Yongseok Kim ) , ( Jae-mean Koo ) , ( Cha

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 167-172 (6 pages)

다운로드

(기관인증 필요)

초록보기

Ultra-high performance (UHP) tires, for which demand has recently surged, are subject to severe strain conditions due to the low aspect ratio of their sidewalls. It is important to ensure sidewall material durability, since a sudden tire sidewall breakage during vehicle operation is likely to cause a major accident. In the automotive application of rubber parts, cracking is defined as a failure because when cracks occur, the mechanical properties of rubber change. According to Mars(8), Andre(11) et al., strain and strain energy density (SED) are mainly used as a failure parameters and the SED is generally used as a fatigue damage parameter. In this study, the fatigue life curves of sidewall rubber of tires were determined by using the SED as fatigue damage parameter while the effect of aging on fatigue life was evaluated after obtaining the SED-Nf curves according to aging condition.

KCI등재

2Synthesis and Properties of Side Chain Liquid Crystalline Polymers with Siloxane Flexible Chain

저자 : ( Jong-ryul Park ) , ( Moon-soo Bang ) , ( Jae-kon Choi )

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 173-179 (7 pages)

다운로드

(기관인증 필요)

초록보기

Side-chain liquid crystalline polymers having polysiloxane skeletons were synthesized by a thiol-ene reaction, using two kinds of mesogenic groups: a cholesteryl group for induction into a cholesteric liquid crystal phase and a triazomesogenic group for imparting light-sensitivity. All the synthesized polymers were crystalline, except the one with a single cholesteryl group. Crystallinity, glass transition temperature, and melt transition temperature increased with increasing content of the azomesogenic group. The polymer (P-C10A0) with a single cholesteryl group has a cholesteric phase, the one (P-C0A10) with a single azomesogenic group has a smectic phase, and those with both types of mesogenic groups showed both smectic and cholesteric phases. The temperature ranges of the two liquid crystalline phases in the co-polymers were independent of the contents of the two types of mesogenic groups. The rate of photoisomerization of the light-sensitive azobenzene group in the polymer decreased with increasing azobenzene content due to steric hindrance between the azomesogenic groups.

KCI등재

3A Study on the Role of -SO3 - Ions in the Dehydration Limit of Poly(styrene-co-styrenesulfonic acid) Membrane

저자 : ( Kwang-hwan Ko ) , ( Joon-seop Kim ) , ( Chang Hoon Lee )

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 180-186 (7 pages)

다운로드

(기관인증 필요)

초록보기

In this work, the effect of low-temperature dehydration of a poly(styrene-co-styrenesulfonic acid) (PSSA) membrane was investigated by differential scanning calorimetry, fourier transform infrared spectroscopy (FT-IR), electron magnetic resonancespectroscopy (EMR), and 1H- and 13C solid-state nuclear magnetic resonance spectroscopy. These analyses were performed at room temperature for powdered PSSA specimens with and without dehydration and the following key observations were made. First, FT-IR analysis showed that low-temperature dehydration not only transformed the [SO3 - ···H+] ionic pair in the non-hydrated PSSA to an SO3H group, but also induced the formation of -C=C- double bonds in the dehydrated PSSA. Second, the -SO3 · radical was unambiguously identified by EMR spectroscopy. Third, H-abstraction was detected by 1H magic-angle spinning spectroscopy. Finally, an unexpected color shift from white for the non-hydrated PSSA to a yellowish brown for the dehydrated sample was observed. In order to explain these experimental results, it was proposed that the formation of the intermediate hydrogen (H˙) or hydroxyl radical (HO˙) species was initiated by the dehydration process. The sespecies attacked the SO3H group and the tertiary proton at the α-carbon, resulting in the formation of -SO˙ radicals and -C=C- double bonds, which correlated with the color shift in the dehydrated PSSA sample. The semechanisms are useful for understanding the simultaneous loss of an aromatic ring and -SO- groups in the PSSA fuel cell membrane.

KCI등재

4Effect of Co-agent on Cure, Mechanical Properties of NBR Compounds in Peroxide System

저자 : ( Eun Ho Seo ) , ( Gi Hong Kim ) , ( Do Young Kim ) , ( Dong Won Lee ) , ( Kwan

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 187-193 (7 pages)

다운로드

(기관인증 필요)

초록보기

In this study, the effect of the cure, mechanical properties, and oil resistance of NBR (acrylonitrile-butadiene rubber)/ peroxide compounds were investigated for various co-agents. NBR compounds were characterized using a swelling test, a rheometer (MDR), and a compression set test. Mechanical properties were tested with original compounds, heated in air and exposed to the ASTM No.1, IRM 903 oil. NBR compounds were prepared using peroxide as the crosslinking agent. Trimethylolpropane trimethacrylate (TMPTMA), triallyl isocyanurate (TAIC), and 1,2-polybutadiene (HVPBD) were used as co-agents. The NBR compounds containing TMPTMA and HVPBD lowered the scorch time, while the addition of TAIC did not significantly change the scorch time. NBR compounds containing TMPTMA increased the crosslinking density, while the addition of TAIC and HVPBD lowered the crosslinking density. Moreover, the addition of TMPTMA improved the oil resistance of the NBR compound.

KCI등재

5Characteristics with Casting Molding of Functional EPDM Through Grafting Polymerization

저자 : ( Yoo Mi Yoon ) , ( Donghyun Kim ) , ( Jeong Hoe Kim ) , ( Minseub Kim ) , ( Won

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 194-200 (7 pages)

다운로드

(기관인증 필요)

초록보기

After the grafting of methacrylic acid (MA) to ethylene propylene diene monomer (EPDM), a new peak at 1704 cm-1 corresponding to the carboxylic acid group was observed in the infrared (IR) spectrum. This characteristic MA molecule peak grew larger as the MA contents were increased. After casting films were prepared from pure EPDM and MAgrafted EPDM, differential scanning calorimeter (DSC) measurements were made the pure EPDM exhibited a melting point of approximately 45℃ while that of the MA-grafted EPDM was 135~140℃. As the graft ratio of MA increased, the absorbed heat capacity increased at temperatures near 135~140℃, indicating that an increased amount of MA reacted. Furthermore, owing to the addition of crystalline MA, it is expected that strength of the elastomer will improve as the graft ratio increases, as a result of the increased number of hard segments.

KCI등재

6Antibacterial Activity and Mechanical Properties of Poly(Lactic-Acid) Composites Containing Zeolite-type Inorganic Bacteriocide

저자 : ( Yuri Park ) , ( Tae-hee Park ) , ( Rami Lee ) , ( Jong-sung Baek ) , ( Kwang-h

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 201-210 (10 pages)

다운로드

(기관인증 필요)

초록보기

We studied the antibacterial effect and mechanical properties of PLA composites with in organic porous zeolite-type bacteriocides. The specimens were prepared by an intermeshing co-rotating twin screw extruder using different contents of inorganic bacteriocide. The degree of dispersion of the in organic bacteriocide in the PLA composite was confirmed by FE-SEM. The contents of Ag and Zn in the composite were also investigated by energy dispersive spectroscopy at different concentrations of the inorganic bacteriocide. The antibacterial effects were analyzed by turbidity analysis, shaking culture, and drop-test. The mechanical properties, such as the tensile and flexural properties, impact strength, and physical properties, were also investigated. As the content of inorganic bacteriocide increased, the antibacterial activity was increased, especially against Staphylococcus aureus. Mechanical properties, namely, tensile strength, elongation, flexural strength, and impact strength, tended to decrease with an increase in inorganic bacteriocide content, but the tensile and flexural modulus increased.

KCI등재

7A Study of Characteristics Variation of Thermally Expandable Microspheres in Post-polymerization Treatment by Various Initiators

저자 : ( Hae Na You ) , ( Ji Hoo Kim ) , ( Myeong Woo Kim ) , ( Keon Il Kim ) , ( Hyun

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 211-215 (5 pages)

다운로드

(기관인증 필요)

초록보기

Thermally expandable microspheres were used as post-treatment initiators of potassium persulfate, sodium bisulfite, and sodium sulfide in order to improve the foaming ability and whiteness when foaming a mixture of thermally expandable microsphers and poly(vinyl chloride). Potassium persulfate showed no significant influence on the foaming behavior, foam expansion, whiteness, and yellowing, whereas in the case of using sodium bisulfite. In particular, sodium bisulfite demonstrated the best efficiency with 2 wt% treatment. The thermally expandable microspheres prepared herein can provide excellent foamability and whiteness, and are expected to be applicable in various fields such as general coating and wallpaper.

KCI등재

8Cooling and Deformation Analysis of a Layered Road in a FDM Type 3D Printing Through Thermal-structural Coupled Simulation

저자 : ( S. L. Kim ) , ( M. -y. Lyu )

발행기관 : 한국고무학회 간행물 : Elastomers and composites 52권 3호 발행 연도 : 2017 페이지 : pp. 216-223 (8 pages)

다운로드

(기관인증 필요)

초록보기

The additive manufacturing technology, also called 3D printing, is growing fast. There are several methods for 3D printing. Fused deposition modeling (FDM) type 3D printing is the most popular method because it is simple and inexpensive. Moreover, it can be used for printing various thermoplastic materials. However, it contains the cooling of layered road and causes thermal shrinkage. Thermal shrinkage should be controlled to obtain high-quality products. In this study, temperature distribution and cooling behavior of a layered road with cooling are studied through computer simulation. The thermal shrinkage of the layered road was simulated using the calculated temperature distribution with time. Shape variation of the layered road was predicted as cooling proceeded. Stress between the bed and the layered road was also predicted.This stress was considered as the detaching stress of the layered road from the bed. The simulations were performed for various thermal conductivities and temperatures of the layered road, bed temperature, and chamber temperature of a 3D printer. The simulation results provide detailed information about the layered road for FDM type 3D printing under operational con-ditions.

1
권호별 보기
가장 많이 인용된 논문

(자료제공: 네이버학술정보)

가장 많이 인용된 논문
| | | |
1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

다운로드

2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

다운로드

가장 많이 참고한 논문

(자료제공: 네이버학술정보)

가장 많이 참고한 논문

다운로드

2미국의 비트코인 규제

(2006)홍길동41회 피인용

다운로드

해당 간행물 관심 구독기관

부산대학교 전북대학교 충남대학교 국회도서관 전남대학교
 66
 24
 21
 18
 17
  • 1 부산대학교 (66건)
  • 2 전북대학교 (24건)
  • 3 충남대학교 (21건)
  • 4 국회도서관 (18건)
  • 5 전남대학교 (17건)
  • 6 성균관대학교 (11건)
  • 7 경희대학교 (11건)
  • 8 충북대학교 (9건)
  • 9 한국산업기술대학교 (9건)
  • 10 연세대학교 (8건)

내가 찾은 최근 검색어

최근 열람 자료

맞춤 논문

보관함

내 보관함
공유한 보관함

1:1문의

닫기