High strength and high modulus poly(vinyl alcohol) by the gel ageing method

1995 ◽  
Vol 30 (20) ◽  
pp. 5110-5120 ◽  
Author(s):  
Tetsuya Tanigami ◽  
Yuichi Nakashima ◽  
Kazuhiro Murase ◽  
Hiroyuki Suzuki ◽  
Kazuo Yamaura ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
High Strength ◽  
Poly Vinyl Alcohol ◽  
High Modulus

High modulus poly (vinyl alcohol) fibers by zone drawing

1986 ◽  
Vol 1 (6) ◽  
pp. 861-869 ◽  
Author(s):  
Paul D. Garrett ◽  
David T. Grubb
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
High Modulus

Fiber Orientation Control by Stretching in Cellulose Nanofiber Green Composites

2017 ◽  
Vol 754 ◽  
pp. 135-138
Author(s):  
Hitoshi Takagi ◽  
Antonio Norio Nakagaito ◽  
Yuya Sakaguchi
Keyword(s):  
Fiber Orientation ◽  
Vinyl Alcohol ◽  
Glass Fibers ◽  
Cellulose Nanofibers ◽  
Polymeric Composite ◽  
High Strength ◽  
Sample Surface ◽  
Cellulose Nanofiber ◽  
Poly Vinyl Alcohol ◽  
Nanofiber Alignment

The presence of nanoscale cellulosic fiber; namely cellulose nanofiber, increases year by year because the mechanical and physical properties are believed to be comparable to those of common glass fibers. On the other hand, most of the reported strength data for the cellulose nanofiber-reinforced polymeric composite materials was not as high as expected. In order to obtain high-strength cellulose nanofiber-reinforced polymer composites, we tried to optimize the fiber orientation of cellulose nanofibers in poly (vinyl alcohol)-based polymer matrix by using a repeated mechanical stretching treatment. The fiber orientation of cellulose nanofibers in the poly (vinyl alcohol) matrix can be modified by changing the total amount of stretching strain applied during the multiple stretching treatments. The degree of fiber alignment was directly evaluated by observing the cellulose nanofibers on the sample surface with a digital microscope. The efficacy of proposed nanofiber alignment control has been explored experimentally and theoretically. The tensile strength and modulus of the cellulosic nanocomposites after applying the multiple stretching treatments increased by approximately 80% and 40% respectively, as compared with those of the untreated nanocomposites.

Novel high-strength thromboresistant poly(vinyl alcohol)-based hydrogel for vascular access applications

2020 ◽  
Vol 31 (5) ◽  
pp. 601-621 ◽  
Author(s):  
Matthew M. Mannarino ◽  
Michael Bassett ◽  
Daniel T. Donahue ◽  
James F. Biggins
Keyword(s):  
Vascular Access ◽  
Vinyl Alcohol ◽  
High Strength ◽  
Poly Vinyl Alcohol

Preparation of high modulus poly(vinyl alcohol) by drawing

1990 ◽  
Vol 40 (56) ◽  
pp. 905-916 ◽  
Author(s):  
Kazuo Yamaura ◽  
Tetsuya Tanigami ◽  
Naoki Hayashi ◽  
Ken-Ichi Kosuda ◽  
Shigeyasu Okuda ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
High Modulus

Fast gelling and non-swellable photopolymerized poly (vinyl alcohol) hydrogels with high strength

2020 ◽  
Vol 134 ◽  
pp. 109854 ◽  
Author(s):  
Shangzhi Li ◽  
Ding Zhou ◽  
Minjie Pei ◽  
Yingshan Zhou ◽  
Weilin Xu ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
High Strength ◽  
Poly Vinyl Alcohol
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