| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터) |
| 권호 | 22권 2호, p.1443 |
| 발표분야 | 고분자 |
| 제목 | Suspension polymerization of thermally expandable microspheres using low-temperature initiators |
| 초록 | Thermally expandable microspheres with core-shell structure have a lot of industrial application. The microspheres which have the typical diameter of 5 – 50 µm can be expanded to microballoons with 50 - 100 times larger volume. In this study, thermally expandable microspheres are synthesized with acrylonitrile(AN) and methyl methacrylate(MMA) . N-octane is used the blowing agent. Suspension polymerization of AN and MMA in water are stabilized by PVP. BDDMA is used as crosslinker. AIBN, V-70, V-65 V-59 are used as the initiator. When the V-70 is used, the microspheres are made at low temperature. V-70 initiator which has low decomposition temperature is the most suitable to prepare the stable microcapsules with particle size of 20-30 µm. The stable capsules without destruction of particles could be obtained. When the initiator amount is 1.5 wt.% and the pressure is 3 bar , the particle size is 30.16 μm and the encapsulation of n-octane is 40 %. The particles expand at 156 °C. Acknowledgments This work was supported by a grant (1415140208/10045051) Korea Ministry of Trade, Industry and Energy (MOTIE), Republic of Korea (2015) |
| 저자 | 소재일1, 임미정1, 천영걸1, 하진욱2, 심상은1 |
| 소속 | 1인하대, 2자동차 부품 (연) |
| 키워드 | 고분자합성 |
| 원문파일 | 초록 보기 |
