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Tearing of Black-filled (N330) Natural Rubber Vulcanizates

Hong, Yang
http://rave.ohiolink.edu/etdc/view?acc_num=akron1428194782

Abstract Details

2015, Master of Science, University of Akron, Polymer Science.
Normal (uncut) tensile strength is weakly dependent on the concentration of carbon black N330. Strain at break has decreases as the concentration of N330 increases. 100% modulus increases as the concentration of N330 increases. With less than 15 phr of N330, NR vulcanizates were weaker than the gum, and tensile strength decreased as the amount of N330 increased. All gum specimens, NC3 and NC6 show single lateral cracking. With 15 phr-17 phr of N330, a fraction of specimens had larger strength than the gum, and multiple cracks occurred before rupture. With 18 phr-40 phr of N330, NR vulcanizates were stronger than the gum. Tensile strength increased as the amount of N330 increased. All specimens show multiple cracks prior to rupture. N330 sulfur-cured vulcanizates form a coherent gel when the carbon black concentration is higher than 16 phr. The overall reinforcement is in the range of 17phr-18phr. Compared to the similar vulcanizates filled with carbon black N660, N330-filled vulcanizates have a lower onset concentration for reinforcement, bound rubber formation, and they have larger 100% modulus and tensile strength for both uncut and edge-cut specimens.
Gary Hamed, Dr. (Advisor)
Darrell Reneker, Dr. (Committee Member)
142 p.
Polymers

Recommended Citations

Citations

  • Hong, Y. (2015). Tearing of Black-filled (N330) Natural Rubber Vulcanizates [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428194782

    APA Style (7th edition)

  • Hong, Yang. Tearing of Black-filled (N330) Natural Rubber Vulcanizates. 2015. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1428194782.

    MLA Style (8th edition)

  • Hong, Yang. "Tearing of Black-filled (N330) Natural Rubber Vulcanizates." Master's thesis, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1428194782

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.