Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Thesis.pdf (1.9 MB)

ETD Abstract Container

Abstract Header

Polystyrene Glasses Under Compression: Ductile and Brittle Responses.

Lu, Yue
http://rave.ohiolink.edu/etdc/view?acc_num=akron1523271245493476

Abstract Details

2018, Master of Science, University of Akron, Polymer Science.
dAs one type of glass, polymer glasses behave the same as regular small-molecule glasses in many ways, a significant difference between polymer glasses and others is polymer glasses can undergo yielding leads to ductile flow instead of brittle fracture when under deformation. For most polymer glasses the failure behavior could switch from brittle to ductile by varying the test temperature, rate, and molecular weight. Incorporation of small-molecular additives into polymer glasses would speed up segmental relaxation, normally the effect of this should be to make the polymers more ductile. Under extension, the ductile PS can turn brittle at 70 °C upon addition of 4% triphenyl phosphate (TPP, as plasticizer) at the lower drawing speed, such antiplasticization effect can be well anticipated from our recent molecular model. This work studied the various compression mechanical responses of Polystyrene of different molecular weights, their binary mixtures and PS plasticized by a few weight percent of triphenyl phosphate (TPP) to learn more about the behavior of polymer glasses under compression deformation. Compression rate, molecular composition and temperature were the controlling parameters in the experiment.
Shiqing Wang, Dr. (Advisor)
Mesfin Tsige, Dr. (Committee Member)
Polymers

Recommended Citations

Citations

  • Lu, Y. (2018). Polystyrene Glasses Under Compression: Ductile and Brittle Responses. [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1523271245493476

    APA Style (7th edition)

  • Lu, Yue. Polystyrene Glasses Under Compression: Ductile and Brittle Responses. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1523271245493476.

    MLA Style (8th edition)

  • Lu, Yue. "Polystyrene Glasses Under Compression: Ductile and Brittle Responses." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1523271245493476

    Chicago Manual of Style (17th edition)

akron1523271245493476
838
© , all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.