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Ahmad H, Rodrigue D. Crosslinked polyethylene: A review on the crosslinking techniques, manufacturing methods, applications, and recycling. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hibal Ahmad
- Department of Chemical Engineering Université Laval Quebec City Quebec Canada
| | - Denis Rodrigue
- Department of Chemical Engineering Université Laval Quebec City Quebec Canada
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Chacha JS, Ofoedu CE, Xiao K. Essential
Oil‐Based
Active
Polymer‐Based
Packaging System: A Review on its Effect on the Antimicrobial, Antioxidant, and Sensory Properties of Beef and Chicken Meat. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James S. Chacha
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
- Department of Food Science and Agroprocessing School of Engineering and Technology Sokoine University of Agriculture, P.O. Box 3006, Chuo Kikuu Morogoro Tanzania
| | - Chigozie E. Ofoedu
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
- Department of Food Science and Technology, School of Engineering and Engineering Technology Federal University of Technology Imo State Owerri Nigeria
| | - Kaijun Xiao
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
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Physical Foaming and Crosslinking of Polyethylene with Modified Talcum. Polymers (Basel) 2019; 11:polym11091472. [PMID: 31505872 PMCID: PMC6780386 DOI: 10.3390/polym11091472] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was the investigation of the use of modified talcum for supporting crosslinking and as novel nucleating agent for physical foaming of polyethylene. For the modification of the talcum, a thermal initiator was linked to the talcum surface. During the extrusion process, the initiator decomposes, and gas and radicals are formed. The gas generates the nucleation of cells and the radicals support the crosslinking process between the polymer chains. The modification of the talcum was performed in three steps: The first step was the grafting of alkoxysilanes onto the talcum surface. The second step was the chlorination of the thermal initiator for an easier linkage, and the last step was the linking between the initiator and the silanes grafted onto the talcum surface. For this study, two investigations were carried out. One investigation was the analysis of the crosslinking effect with the modified talcum. For this purpose, polyethylene plates were compression molded and the viscoelastic properties were measured with a parallel plate rheometer. The use of the modified talcum led to a higher crosslinking density. The second investigation was the physical foaming experiment in an extrusion process with nitrogen as blowing agent using both a pure and the modified talcum as nucleating agents. The foamed samples were characterized in terms of density, cell size and cell density, and compared with each other. The blend with the modified nucleating agent indicated a foam structure with a smaller mean cell size and a lower density compared to the use of the pristine nucleating agent.
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Wang H, Li L, Guan J, Jiang H, Shen R, Ding X, Li J, Li Y. Investigation on Molecular Structures of Electron-Beam-Irradiated Low-Density Polyethylene by Rheology Measurements. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hengti Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Road, Hangzhou 310036, People’s Republic of China
| | - Linfan Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jipeng Guan
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Road, Hangzhou 310036, People’s Republic of China
| | - Haiqing Jiang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Rongfang Shen
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiaojun Ding
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jingye Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Road, Jiading District, Shanghai 201800, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yongjin Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, No. 16 Xuelin Road, Hangzhou 310036, People’s Republic of China
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