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Gai K, Ren X, Chen J, Zhou X, Wan Q, Wang Q, Li Y. Construction of Helically Oriented Syndiotactic Polypropylene/Isotactic Polypropylene Composites for Medical Interventional Tubes via Rotation Extrusion. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kuo Gai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Xiangfeng Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Xiling Zhou
- National Engineering Research Center of Novel Equipment for Polymer Processing; Key Laboratory of Polymer Processing Engineering, Ministry of Education; Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing; Department of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou510641, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
| | - Yijun Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, West China Hospital of Stomatology, Sichuan University, Chengdu610041, China
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Hong R, Jiang YX, Leng J, Liu MJ, Shen KZ, Fu Q, Zhang J. Synergic Enhancement of High-density Polyethylene through Ultrahigh Molecular Weight Polyethylene and Multi-flow Vibration Injection Molding: A Facile Fabrication with Potential Industrial Prospects. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2545-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Xie Z, Gao N, Du Z, Yang H, Shen K, Fu Q, Gao X. Role of Melt Plasticizing Temperature in Morphology and Properties of PE100 Pipes Prepared by a Rotational Shear System. ACS OMEGA 2020; 5:12660-12671. [PMID: 32548449 PMCID: PMC7288367 DOI: 10.1021/acsomega.9b04138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
To increase the maximum internal pressure that a polyethylene (PE) pipe can withstand, a novel rotational shear system (RSS) was constructed in this study to fabricate PE pipes with enhanced hoop strength by applying hoop shear on the pipes using a rotational mandrel. The microstructure and morphology with the influences of melt plasticizing temperature on PE pipes processing under rotational shear were investigated indirectly using small-angle X-ray scattering and wide-angle X-ray diffraction (SAXS/WAXD) measurements. In the SAXS patterns, equatorial streaks and meridional scattering peaks were clearly observed in all three samples prepared at different melt plasticizing temperatures, 215, 235, and 255 °C. Their presence indicated that shish-kebab crystals form in rotational shear. Compared to those at the low melt temperature, the increase in the melt temperature enhanced the amount and the dimensions of shish formed. However, the shish also relaxed faster at the high melt temperature. This behavior was attributed to the enhancement of the molecular chain's athletic ability. The hoop tensile strength and the heat resistance of the pipes peaked at the melt plasticizing temperature of 235 °C, 75.2 MPa, 102.4 °C, up 1 MPa, 0.2 °C (compared to the 215 °C) and 7.8 MPa, 3.2 °C (compared to the 255 °C). The axial strength increased with an increase of melt plasticizing temperature. However, the increase of melt plasticizing temperature worsens the inherent good tensile toughness of PE100 pipes as the axial elongation at break decreases.
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Affiliation(s)
- Zexiang Xie
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ning Gao
- Chengdu Technological University, Chengdu 610023, China
| | - Zuchen Du
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hao Yang
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kaizhi Shen
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Qiang Fu
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xueqin Gao
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
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