采用乙基纤维素对聚乙二醇(PEG)粒子进行表面修饰,通过对修饰后PEG粒子和未修饰PEG粒子进行差示扫描量热(DSC)测试,研究PEG材料尺寸对非等温结晶过程的影响.结果发现:表面修饰PEG粒子在球晶生长碰到皮材时结晶结束,而未修饰PEG粒子在球晶生长一段时间后相互碰撞挤压直到填满所有空隙后结晶才结束;表面修饰后结晶半时间和结晶最快时间变短;表面修饰PEG粒子和未修饰PEG粒子在尺寸小于400μm时,表面修饰PEG粒子的结晶峰峰位向高温移动.
参考文献
| [1] | Chuah H;Chang B .Crystal orientation function of poly (trimethylene terephthalate) by wide-angle x-ray diffraction[J].Polymer Bulletin,2001,46:307-313. |
| [2] | Wu J.;Samon JM.;Pangelinan AB.;Chuah HH.;Schultz JM. .In situ study of structure development in poly(trimethylene terephthalate) fibers during stretching by simultaneous synchrotron small- and wide-angle X-ray scattering[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(16):7141-7151. |
| [3] | ZHANG Zhiying.THEORETICAL ANALYSIS OF KINETICS OF NONISOTHERMAL CRYSTALLIZATION OF POLYMERS[J].高分子科学（英文版）,1994(03):256-265. |
| [4] | 陈国康,顾利霞.聚对苯二甲酸丙二醇酯树脂的结晶特性和结晶动力学[J].高分子材料科学与工程,2001(01):141-145. |
| [5] | 张志英;杜莹华 .研究高聚物结晶动力学的等速升温DSC方法[J].合成纤维工业,1990,13(02):41-44. |
| [6] | A. Mahendrasingam;C. Martin;W. Fuller;D. J. Blundell;R. J. Oldman;J. L. Harvie;D. H. MacKerron;C. Riekel;P. Engstrom .Effect of draw ratio and temperature on the strain-induced crystallization of poly (ethylene terephthalate) at fast draw rates[J].Polymer: The International Journal for the Science and Technology of Polymers,1999(20):5553-5565. |
| [7] | 张志英;康文华;张春玲.高聚物的非等温结晶动力学-从不同速率的升温或降温DSC曲线解析结晶动力学参数[J].高分子学报,1992(04):500-503. |
| [8] | Zhang H;Mitchell B .A method for determining crystallization parameters from one nonisothermal calorimetric experiment[J].Material Research Society,2000,4:1000-1007. |
| [9] | 张志英,朱兆付.Avrami结晶动力学理论在非等温条件下的应用[J].高分子材料科学与工程,1994(06):80-84. |
| [10] | Hui Sun,Zhi-ying Zhang,Shi-zhen Wu,Bin Yu,Chang-fa Xiao.INFLUENCE OF SAMPLE THICKNESS ON ISOTHERMAL CRYSTALLIZATION KINETICS OF POLYMERS IN A CONFINED VOLUME[J].高分子科学（英文版）,2005(06):657-663. |
| [11] | Zhu P;Ma D .Double cold crystallization peaks of poly(ethylene terephthalate)-1.Samples isothermally crystallization at low tempetrarure[J].European Polymer Journal,1997,33(10-12):1817-1818. |
| [12] | Zhu Pingping;Ma Dezhu .Study on the double cold crystallization peaks of poly(ethylene terephthalate) (PET): 2. Samples isothermally crystallized at high temperature[J].European Polymer Journal,1999(4):739-742. |
| [13] | Z.Zhang;M.Ren;J.Zhao;S.Wu;H.Sun .Kinetics of non-isothermal cold crystallization of uniaxially oriented poly(ethylene terephthalate)[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(8):2547-2551. |
| [14] | Zhiying Zhang;Shizhen Wu;Minqio Ren;Changfa Xiao .Model of cold crystallization of uniaxially oriented poly(ethylene terephthalate)fibers[J].Polymer: The International Journal for the Science and Technology of Polymers,2004(13):4361-4365. |
| [15] | Mahendrasingam A.;Martin C.;Fuller W.;MacKerron DH. Harvie JL.;Oldman RJ.;Riekel C.;Blundell DJ. .Influence of temperature and chain orientation on the crystallization of poly(ethylene terephthalate) during fast drawing[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(21):7803-7814. |
| [16] | 梁治齐.微胶囊技术及其应用[M].北京:中国轻工业出版社,1999:99-100. |
| [17] | 张志英.测定高聚物结晶动力学参数的非等温理论和方法[J].高分子通报,1994(03):167-173. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%