Login In
Citation:
Hong-mei Yang, Zhi-gang Liu, Yong-zhu Yang, Qiang Zheng. RHEOLOGIC STUDIES ON CHEMICAL CROSS-LINKING KINETICS FOR LDPE[J]. Chinese Journal of Polymer Science,
;2012, 30(3): 378-386.
doi:
10.1007/s10118-012-1137-z
-
Crosslinking reaction of LDPE resin in the presence of dicumyl peroxide (DCP) was studied by isothermal rheological measurements at different temperatures and non-isothermal differential scanning calorimetry (DSC) technique with different heating rates. The kinetic parameters of crosslinking reaction were calculated by both rheological and DSC measurements. The results reveal that with the increase of DCP contents, the apparent activation energy, Ea, ranges from about 140 kJ/mol to 170 kJ/mol and the order of crosslinking reaction, n, approaches unity. The influence of measurement frequency, , on crosslinking reaction was also investigated. It can be found that n does not change with the increase of , and Ea decreases slightly with the increase of .
-
Keywords:
- Crosslinking kinetic
-
-
-
[1]
-
[1]
-
-
-
[1]
Yifei Zhang , Yuncong Xue , Laiwei Gao , Rui Liao , Feng Wang , Fei Wang . Merging non-covalent and covalent crosslinking: En route to single chain nanoparticles. Chinese Chemical Letters, 2024, 35(6): 109217-. doi: 10.1016/j.cclet.2023.109217
-
[2]
Dan-Ying Xing , Xiao-Dan Zhao , Chuan-Shu He , Bo Lai . Kinetic study and DFT calculation on the tetracycline abatement by peracetic acid. Chinese Chemical Letters, 2024, 35(9): 109436-. doi: 10.1016/j.cclet.2023.109436
-
[3]
Ruilong Geng , Lingzi Peng , Chang Guo . Dynamic kinetic stereodivergent transformations of propargylic ammonium salts via dual nickel and copper catalysis. Chinese Chemical Letters, 2024, 35(8): 109433-. doi: 10.1016/j.cclet.2023.109433
-
[4]
Ling Tang , Yan Wan , Yangming Lin . Lowering the kinetic barrier via enhancing electrophilicity of surface oxygen to boost acidic oxygen evolution reaction. Chinese Journal of Structural Chemistry, 2024, 43(11): 100345-100345. doi: 10.1016/j.cjsc.2024.100345
-
[5]
Yongheng Ren , Yang Chen , Hongwei Chen , Lu Zhang , Jiangfeng Yang , Qi Shi , Lin-Bing Sun , Jinping Li , Libo Li . Electrostatically driven kinetic Inverse CO2/C2H2 separation in LTA-type zeolites. Chinese Journal of Structural Chemistry, 2024, 43(10): 100394-100394. doi: 10.1016/j.cjsc.2024.100394
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(578)
- HTML views(1)
DownLoad: