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Transoctylene rubber(TOR)의 첨가가 NR/isotactic PP 블렌드의 물성에 미치는 영향

Title
Transoctylene rubber(TOR)의 첨가가 NR/isotactic PP 블렌드의 물성에 미치는 영향
Other Titles
Effect of Transoctylene Rubber ( TOR ) on the Properties of Natural Rubber / isotactic Polypropylene Blends
Author
장영욱
Keywords
thermoplastic elastomers; NR/PP blends; trans-polyoctylene rubber (TOR); mechanical properties; dynamic properties; thermal stability
Issue Date
2001-09
Publisher
한국고무학회
Citation
Elastomers and composites, v. 36, no. 3, page. 188-194
Abstract
고무상으로 천연고무와 TOR을 플라스틱상으로는 isotactic 폴리프로필렌을 고무:플라스틱이 70:30이 되도록 내부혼합기에서 용융혼합하고, 동적가황시킴으로써 열가소성탄성체를 제조하였으며, 고무상의 TOR 함량에 따른 기계적물성, 동적점탄성물성 및 열적특성의 변화에 관하여 UTM, DMA, TGA 등을 이용하여 조사하였다. 고무상에 TOR이 첨가됨으로써 모듈러스, 인장강도 및 신율등의 인장물성의 증가, 영구압축줄음률의 감소, 경도의 증가를 가져왔으며, 또한, 옹적특성 및 열적안정성도 함께 향상시킬 수 있음을 알았다. 이와같은 물성의 증가는 TOR이 천연고무에 첨가됨으로써 고무상의 가교밀도를 증가시키고, 고무상의 용융점도를 낮춤으로써 고무와 iPP간의 혼화성을 증대시키기 때문이라고 판단되었다. Thermoplastic elastomers based on dynamically vulcanized NR/TOR/PP (rubber/PP=70/30) blends were prepared in a Haake banbury mixer. Effect of TOR content on the mechanical, dynamic mechanical and thermal stability of the rubber/plastic blends was characterized by UTM, DMTA, and TGA. On the addition of traps-polyoctylene rubber(TOR) to the rubber phase, there was a decrease in compression set and increase in tensile properties, hardness and dynamic properties as well as thermal stability of the elastomeric blends. Improvements in the properties were believed to be due to an increase in crosslink density of the rubber phase and increase in homogeneity of the blends.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=1811443https://repository.hanyang.ac.kr/handle/20.500.11754/160127
ISSN
2092-9676; 2288-7725
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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