EFFECT OF THERMAL HISTORY ON THE MELTING BEHAVIOR OF NYLON 1212
文献类型:期刊论文
作者 | Zhang Chenggui1; Sun Chunhong1; Zhang Xiaojing1; Han, Charles C.2; Zhao Qingxiang3 |
刊名 | ACTA POLYMERICA SINICA
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出版日期 | 2009-11-20 |
期号 | 11页码:1126-1131 |
关键词 | Nylon 1212 Crystallization Annealing Melting |
ISSN号 | 1000-3304 |
英文摘要 | The effect of thermal history on the melting behavior of nylon 1212 has been studied by differential scanning calorimetry (DSC). Two or three melting peaks were observed on DSC curves at different thermal history. The mechanism of melting peaks of nylon 1212 was analyzed according to the theory of polymer crystallization. Lower temperature melting peaks (P(I)) in DSC curves were mainly attributed to melting of minicrystal or lamellar crystal which developed from nylon 1212 annealed for 120 min at different temperatures. The peak temperature of these peaks is low, and their area is small. The main melting peak (P(II)) is the melting of perfect crystals which are formed in a recrystallization process of the polymer after P(I) and P(II). The value of main peak temperature is much higher and the area is much larger. The melting peak (P(II)) might be developed from melting of crystals which formed during quenched process of nylon 1212. The position of melting peak changed slightly with different heating rate, which indicates that these crystals have similar form. Increasing crystallization time is favorable for perfect crystals formation. The sample annealed at two different temperatures exhibits two additional melting peaks. Temperatures of these additional melting peaks are higher than annealing temperatures. Moreover, the position and area of additional peak reduced with the annealing temperature decreasing. The equilibrium melting temperature of nylon 1212 was determined as 202.8 degrees C by Hoffman's method according to results of isothermal crystallization. |
语种 | 英语 |
WOS记录号 | WOS:000272677700009 |
出版者 | SCIENCE PRESS |
源URL | [http://ir.iccas.ac.cn/handle/121111/67937] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Zhang Chenggui |
作者单位 | 1.Zhengzhou Univ Light Ind, Coll Mat & Chem Engn, Key Lab Surface & Interface Sci Henan Prov, Zhengzhou 450002, Peoples R China 2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing 100190, Peoples R China 3.Zhengzhou Univ, Coll Mat Engn, Zhengzhou 450002, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang Chenggui,Sun Chunhong,Zhang Xiaojing,et al. EFFECT OF THERMAL HISTORY ON THE MELTING BEHAVIOR OF NYLON 1212[J]. ACTA POLYMERICA SINICA,2009(11):1126-1131. |
APA | Zhang Chenggui,Sun Chunhong,Zhang Xiaojing,Han, Charles C.,&Zhao Qingxiang.(2009).EFFECT OF THERMAL HISTORY ON THE MELTING BEHAVIOR OF NYLON 1212.ACTA POLYMERICA SINICA(11),1126-1131. |
MLA | Zhang Chenggui,et al."EFFECT OF THERMAL HISTORY ON THE MELTING BEHAVIOR OF NYLON 1212".ACTA POLYMERICA SINICA .11(2009):1126-1131. |
入库方式: OAI收割
来源:化学研究所
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