Effect of annealing on the viscoelastic and viscoplastic responses of low-density polyethylene
文献类型：期刊论文
| 作者 | Drozdov AD ; Yuan Q |
| 刊名 | journal of polymer science part b-polymer physics
 |
| 出版日期 | 2003 |
| 卷号 | 41期号:14页码:1638-1655 |
| 关键词 | MOLECULAR-WEIGHT POLYETHYLENE X-RAY-SCATTERING STRAIN-RATE DEPENDENCE ISOTACTIC POLYPROPYLENE CREEP-BEHAVIOR MECHANICAL-PROPERTIES SMALL-ANGLE SEMICRYSTALLINE POLYMERS MORPHOLOGICAL-CHANGES RELAXATION BEHAVIOR |
| ISSN号 | 0887-6266 |
| 通讯作者 | drozdov ad |
| 中文摘要 | two series of tensile tests with constant crosshead speeds (ranging from 5 to 200 mm/min) and tensile relaxation tests (at strains from 0.03 to 0.09) were performed on low-density polyethylene in the subyield region of deformations at room temperature. mechanical tests were carried out on nonannealed specimens and on samples annealed for 24 h at the temperatures t = 50, 60, 70, 80, and 100 degreesc. constitutive equations were derived for the time-dependent response of semicrystalline polymers at isothermal deformations with small strains. a polymer is treated as an equivalent heterogeneous network of chains bridged by temporary junctions (entanglements, physical crosslinks, and lamellar blocks). the network is thought of as an ensemble of mesoregions linked with each other. the viscoelastic behavior of a polymer is modeled as a thermally induced rearrangement of strands (separation of active strands from temporary junctions and merging of dangling strands with the network). the viscoplastic response reflects sliding of junctions in the network with respect to their reference positions driven by macrostrains. stress-strain relations involve five material constants that were found by fitting the observations. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183812400005 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://202.98.16.49/handle/322003/15333]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Drozdov AD,Yuan Q. Effect of annealing on the viscoelastic and viscoplastic responses of low-density polyethylene[J]. journal of polymer science part b-polymer physics,2003,41(14):1638-1655. |
| APA | Drozdov AD,&Yuan Q.(2003).Effect of annealing on the viscoelastic and viscoplastic responses of low-density polyethylene.journal of polymer science part b-polymer physics,41(14),1638-1655. |
| MLA | Drozdov AD,et al."Effect of annealing on the viscoelastic and viscoplastic responses of low-density polyethylene".journal of polymer science part b-polymer physics 41.14(2003):1638-1655. |
入库方式： OAI收割
来源：长春应用化学研究所
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