Molecular dynamics simulation with coarse-grained model of polyvinyl alcohol was used to investigate the structure of semicrystalline polymer through melt-cooling process. The relationship between microstructure and macroscopic mechanical behavior was then investigated to reveal the microscopic mechanism of semicrystalline polymer during uniaxial tension. The stress-strain behavior comprised elastic stage, yield stage, strain softening stage and strain hardening stage. Several important structural evolution...
【基金】
中央高校基本科研业务费(CDJZR12 24 8801);
重庆大学机械传动国家重点实验室科研业务费(SKLMT-ZZKT-2012 MS 18)资助项目
【更新日期】
2016-04-13
【分类号】
O631.1
【正文快照】
more difficult than crystal slipping,in other words,the disentanglement of PVA molecules need more energy.The stressin this stage increased which mainly led to the mechanical behavior of strain hardening.In conclusion,the coordinatedmicrostructure evoluti
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