Deformation mechanism of polystyrene toughened with sub-micrometer monodisperse rubber particles
文献类型：期刊论文
| 作者 | Gao GH ; Zhang JS ; Yang HD ; Zhou C ; Zhang HX |
| 刊名 | polymer international
 |
| 出版日期 | 2006 |
| 卷号 | 55期号:11页码:1215-1221 |
| 关键词 | HIGH-IMPACT POLYSTYRENE ELASTOMER-MODIFIED EPOXIES FRACTURE MECHANISMS CREEP MECHANISMS HIPS/PPO BLENDS CAVITATION SIZE PLASTICS POLYMERS BEHAVIOR |
| ISSN号 | 0959-8103 |
| 通讯作者 | zhang hx |
| 中文摘要 | core-shell polybutadiene-graft-polystyrene (pb-g-ps) rubber particles with different ratios of polybutadiene to polystyrene were prepared by emulsion polymerization through grafting styrene onto polybutadiene latex. the weight ratio of polybutadiene to polystyrene ranged from 50/50 to 90/10. these core-shell rubber particles were then blended with polystyrene to prepare ps/pb-g-ps blends with a constant rubber content of 20 wt%. pb-g-ps particles with a lower pb/ps ratio (<= 570/30) form a homogeneous dispersion in the polystyrene matrix, and the izod notched impact strength of these blends is higher than that of commercial high-impact polystyrene (hips). it is generally accepted that polystyrene can only be toughened effectively by 1-3 mu m rubber particles through a toughening mechanism of multiple crazings. however, the experimental results show that polystyrene can actually be toughened by monodisperse sub-micrometer rubber particles. scanning electron micrographs of the fracture surface and stress-whitening zone of blends with a pb/ps ratio of 70/30 in pb-g-ps copolymer reveal a novel toughening mechanism of modified polystyrene, which may be shear yielding of the matrix, promoted by cavitation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241203400002 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16639]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao GH,Zhang JS,Yang HD,et al. Deformation mechanism of polystyrene toughened with sub-micrometer monodisperse rubber particles[J]. polymer international,2006,55(11):1215-1221. |
| APA | Gao GH,Zhang JS,Yang HD,Zhou C,&Zhang HX.(2006).Deformation mechanism of polystyrene toughened with sub-micrometer monodisperse rubber particles.polymer international,55(11),1215-1221. |
| MLA | Gao GH,et al."Deformation mechanism of polystyrene toughened with sub-micrometer monodisperse rubber particles".polymer international 55.11(2006):1215-1221. |
入库方式： OAI收割
来源：长春应用化学研究所
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