Calculation of polymer melt relaxation time spectrum
[1]Hao Rujiang,CHEN Jingbo,Shen Changyu,et al.Calculation of polymer melt relaxation time spectrum[J].Journal of Zhengzhou University (Engineering Science),2001,22(04):90-92.[doi:10.3969/j.issn.1671-6833.2001.04.025]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
22
Number of periods:
2001年04期
Page number:
90-92
Column:
Public date:
1900-01-01
- Title:
- Calculation of polymer melt relaxation time spectrum
- CLC:
- -
- Abstract:
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The relaxation time spectrum is an important parameter to describe the viscoelastic nature of the polymer melt, which cannot be obtained directly by experiments. Based on the storage modulus and energy dissipation modulus of polymer melt, a calculation method for obtaining melt relaxation time spectrum by least squares linear regression is given. The effectiveness of the algorithm is tested by an example, the influence of relaxation time and relaxation mode selection on the calculation results is analyzed, and corresponding improvement measures are proposed.
- References:
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Last Update:
1900-01-01
