Effects of shell thickness of polystyrene-encapsulated mg(oh)(2) on flammability and rheological properties of high-impact polystyrene composites
文献类型：期刊论文
| 作者 | Chang, Suqin; Xie, Tingxiu; Yang, Guisheng |
| 刊名 | Polymer international
 |
| 出版日期 | 2007-09-01 |
| 卷号 | 56期号:9页码:1135-1141 |
| 关键词 | High-impact polystyrene Magnesium hydroxide Morphology Flammability Rheological proper-ties Cone calorimetry |
| ISSN号 | 0959-8103 |
| DOI | 10.1002/pi.2249 |
| 通讯作者 | Chang, suqin(csqdlut@163.com) |
| 英文摘要 | Polystyrene (ps)-encapsulated magnesium hydroxide (mg(oh)(2)) particles with various shell thicknesses were successfully prepared using a method of in situ polymerization of styrene in a high-speed mixer. high-impact polystyrene (hips)/mg(oh)(2) composites were prepared by melt blending. they were characterized using cone calorimetry, horizontal burning rate, rheology and scanning electron microscopy in order to investigate the effects of the shell thickness of the ps-encapsulated mg(oh)(2) on the flame retardancy and rheological properties of the resulting composites. rheological tests showed that the composites containing encapsulated mg(oh)(2) had a stronger solid-like response at low frequency than that of the sample containing untreated mg(oh)(2). however, with ps/mg(oh)(2) ratio increasing up to 6.0 wt% and above, the dynamic viscosity, loss modulus and storage modulus of hips/mg(oh)(2) composites decreased. the optimum ps/mg(oh)(2) ratio, 4.5 wt%, was determined using a new 'crossover point' rheological method. the combustion tests showed that compared to the composites containing untreated mg(oh)(2), the fire retardancy of the composites containing ps-encapsulated mg(oh)(2) was improved significantly. also, there appeared to be a critical ps/mg(oh)(2) ratio, namely 6.0 wt%, for optimum flame-retarding properties. however with the continuous increase of ps/mg(oh)(2) ratio, the fire resistance of the composites declined somewhat, which can be explained by acceleration of combustion of the composites due to the introduction of free ps chains of low molecular weight on the surface of mg(oh)(2). (c) 2007 society of chemical industry. |
| WOS关键词 | IN-SITU POLYMERIZATION ; MAGNESIUM-HYDROXIDE ; FLAME-RETARDANT ; MECHANICAL-PROPERTIES ; INTERFACIAL MODIFICATION ; POLYPROPYLENE ; POLYETHYLENE ; MORPHOLOGY ; PARTICLES ; BEHAVIOR |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000248495700008 |
| 出版者 | JOHN WILEY & SONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380817 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chang, Suqin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Shanghai Genius Adv Mat Co Ltd, R&D Ctr, Shanghai 201109, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Suqin,Xie, Tingxiu,Yang, Guisheng. Effects of shell thickness of polystyrene-encapsulated mg(oh)(2) on flammability and rheological properties of high-impact polystyrene composites[J]. Polymer international,2007,56(9):1135-1141. |
| APA | Chang, Suqin,Xie, Tingxiu,&Yang, Guisheng.(2007).Effects of shell thickness of polystyrene-encapsulated mg(oh)(2) on flammability and rheological properties of high-impact polystyrene composites.Polymer international,56(9),1135-1141. |
| MLA | Chang, Suqin,et al."Effects of shell thickness of polystyrene-encapsulated mg(oh)(2) on flammability and rheological properties of high-impact polystyrene composites".Polymer international 56.9(2007):1135-1141. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。