Paper Title:
Influence of Operation Procedures on Vicat Softening Temperature of Thermoplastic Materials
  Abstract

Vicat softening temperature (VST) is one of the most important parameters to evaluate heat resistance of thermoplastic materials. However, the initial test temperature is difficult to control, which may reduce the testing efficiency and the precision of VST. Moreover, according to the procedure of GB/T 1633-2000, the specimen should be placed horizontally under the indenting tip of unloaded rod for 5min. After that, add a sufficient weight to the weight-carrying plate, and then set the penetration indicator to zero to start the experiment. However, the waiting period between adding the extra mass and starting the test may be different during the real operation. Such longer or shorter waiting periods can also influence the tested VST. In this paper, ultra-high molecular weight polyethylene (UHMWPE) was used to discuss the influence of initial temperature and waiting period on its final VST. The results show that, in order to satisfy the practices of standard GB/T 1633-2000, the initial temperature and the waiting period should not exceed 40°C and 25min, respectively.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Waste Engineering and Management
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
1820-1824
DOI
10.4028/www.scientific.net/AMR.291-294.1820
Citation
H. B. Li, Q. Li, M. L. Yan, "Influence of Operation Procedures on Vicat Softening Temperature of Thermoplastic Materials", Advanced Materials Research, Vols. 291-294, pp. 1820-1824, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Guo Ma, Yun Sheng Zhang
Abstract:The hydration heat evolution process is studied on the pure cement paste, the cement- fly ash binary system and the cement- silica fume...
4001
Authors: Zhi Gang Qi, Jun Dong, Dan Hu
Chapter 4: Road and Bridge Engineering
Abstract:Under the coupling action of bending and torsion are there such complex mechanical characteristics in a small radius ramp curved bridge with...
1618
Authors: Xiao Jing Tan, Bin Wu
Chapter 13: Advanced Structural Experimental Techniques and Sensing Techniques
Abstract:Pseudo-dynamic testing using force- mixed control strategy is presented for structures with large stiffness. In this proposed method, the...
1133
Authors: Marek Zozulák, Marián Vertaľ, Dušan Katunský
Chapter 3: Hygrothermal Performance of Building Materials and Constructions
Abstract:In building simulations initial conditions express the actual hygrothermal state of building envelope. For the temperature field simulations...
273