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 년도별 목차보기 |
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| 발행년도/권호 |
2007 년 / 권호: V.19,no.5,Oct |
| 논문제목1(원어) |
Effects of Protective Colloids on the Formation of Polyurea Microcapsules |
| 논문제목2(타언어) |
Effects of Protective Colloids on the Formation of Polyurea Microcapsules |
| 저자(원어) |
Eungmin Lee1, Heain Kim and Soomin Park |
| 저자(타언어) |
Eungmin Lee1, Heain Kim and Soomin Park |
| 소속(원어) |
Daewoo International/ISM,Pusan National University |
| 소속(타언어) |
Daewoo International/ISM,Pusan National University |
| 시작/끝
페이지 |
30 ~ 36 총페이지 : 7 |
| 언어(원어) |
English |
| 초록 |
Cypermethrin-containing polyurea microcapsules were prepared by interfacial polymerization using
aromatic 2,4-toluene diisocyanate(TDI) and Ethylene diamine(EDA) as wall forming materials. The effects of the
protective colloids of polyvinylalcohol(PVA) and gelatin were investigated through experimentation. The mean
size of the polyurea microcapsules was smaller and the surface morphology of the PVA was much smoother than
gelatin. In addition the release behavior was much more controlled and better sustained. As the concentration of
protective colloid increased, the wall membrane of the polyurea microcapsules became more stable, the thermal
stability of the wall membrane increased, the mean particle size became smaller, and the particle distribution was
more uniform. The release behavior of the core material changed according to the concentration. As the gelatin
concentration was increased, a more controlled and sustained release behavior was observed. However, in the
case of PVA, the increase of PVA concentration lead to a more rapid release rate. |
| 키워드 |
microcapsule, polyurea, PVA, gelatin, release behavior |
| 학회지 |
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| Reference |
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2007_v19n5_30 |
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