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Tunable β-crystals formation from transcrystallinity to cylindrites at PP/PE interface via using melt penetration engineering. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Huang Y, Chen L, Zheng S, Wu X, Liu L, Ke K, Liu Z, Yang W, Yang M. A new insight into multi-tier structure tailoring: Synchronous utilization of particle migration and incompatible interface separation under shear flow. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ma SJ, Wang SW, Zhang Q, Li Q. Improved Layer Mechanical Properties of Micro Injection Molded PP. INT POLYM PROC 2017. [DOI: 10.3139/217.3349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The results have been achieved by adjusting the structure to improve the performance of micro injection molded isotactic polypropylene products. Annealing was adopted to optimize the performance of isotactic polypropylene micro injection molded gears. It was found that the annealing temperature shows greater influence on the crystalline structure of the micro injection molded gears than annealing time. The layer mechanical properties were greatly improved after annealing, about 1.7-fold for modulus and 1.9-fold for hardness of the micro injection molded gears relative to the unannealed sample. This is due to the fact the state of molecular chain aggregation tends to be consistent after high temperature annealing in the micro injection molded isotactic polypropylene gear sample.
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Affiliation(s)
- S. J. Ma
- National Center for International Joint Research of Micro-Nano Molding Technology , School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou , PRC
| | - S. W. Wang
- National Center for International Joint Research of Micro-Nano Molding Technology , School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou , PRC
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials , Southwest University of Science and Technology, Mianyang , PRC
| | - Q. Zhang
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials , Southwest University of Science and Technology, Mianyang , PRC
| | - Q. Li
- National Center for International Joint Research of Micro-Nano Molding Technology , School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou , PRC
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