The ultra-drawing behaviour of ultra-high-molecular-weight polyethylene: comparison of the gel-like spherulite pressing method and the gel-casting method

Toshihiko Ohta; Akihiko Takada; Tomoko Yamamura; Akiyoshi Kawaguchi; Syozo Murakami

doi:10.1016/0032-3861(95)95294-B

The ultra-drawing behaviour of ultra-high-molecular-weight polyethylene: comparison of the gel-like spherulite pressing method and the gel-casting method

Toshihiko Ohta, Akihiko Takada, Tomoko Yamamura, Akiyoshi Kawaguchi, Syozo Murakami

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Ultra-drawing behaviour has been studied by comparison of the gel-like spherulite pressing method and the gel-casting method using two kinds of specimens prepared from 2.0 wt% solution of ultra-high-molecular-weight polyethylene. The only major difference between the specimens is the cooling rate of solution. The influence of chain entanglement density in an undrawn specimen on the increase in strength and modulus with ultra-drawing has been discussed. The higher chain entanglement density of the undrawn specimen is the reason for the slopes of strength and modulus versus draw ratio being steeper in the gel-casting method. However, it was found that the differences in the above slopes between the two methods could not be explained by the changes in crystalline orientation and crystalline size with ultra-drawing.

Original language	English
Pages (from-to)	2181-2187
Number of pages	7
Journal	polymer
Volume	36
Issue number	11
DOIs	https://doi.org/10.1016/0032-3861(95)95294-B
Publication status	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(95)95294-B

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title = "The ultra-drawing behaviour of ultra-high-molecular-weight polyethylene: comparison of the gel-like spherulite pressing method and the gel-casting method",

abstract = "Ultra-drawing behaviour has been studied by comparison of the gel-like spherulite pressing method and the gel-casting method using two kinds of specimens prepared from 2.0 wt% solution of ultra-high-molecular-weight polyethylene. The only major difference between the specimens is the cooling rate of solution. The influence of chain entanglement density in an undrawn specimen on the increase in strength and modulus with ultra-drawing has been discussed. The higher chain entanglement density of the undrawn specimen is the reason for the slopes of strength and modulus versus draw ratio being steeper in the gel-casting method. However, it was found that the differences in the above slopes between the two methods could not be explained by the changes in crystalline orientation and crystalline size with ultra-drawing.",

author = "Toshihiko Ohta and Akihiko Takada and Tomoko Yamamura and Akiyoshi Kawaguchi and Syozo Murakami",

year = "1995",

doi = "10.1016/0032-3861(95)95294-B",

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T2 - comparison of the gel-like spherulite pressing method and the gel-casting method

AU - Ohta, Toshihiko

AU - Takada, Akihiko

AU - Yamamura, Tomoko

AU - Kawaguchi, Akiyoshi

AU - Murakami, Syozo

PY - 1995

Y1 - 1995

N2 - Ultra-drawing behaviour has been studied by comparison of the gel-like spherulite pressing method and the gel-casting method using two kinds of specimens prepared from 2.0 wt% solution of ultra-high-molecular-weight polyethylene. The only major difference between the specimens is the cooling rate of solution. The influence of chain entanglement density in an undrawn specimen on the increase in strength and modulus with ultra-drawing has been discussed. The higher chain entanglement density of the undrawn specimen is the reason for the slopes of strength and modulus versus draw ratio being steeper in the gel-casting method. However, it was found that the differences in the above slopes between the two methods could not be explained by the changes in crystalline orientation and crystalline size with ultra-drawing.

AB - Ultra-drawing behaviour has been studied by comparison of the gel-like spherulite pressing method and the gel-casting method using two kinds of specimens prepared from 2.0 wt% solution of ultra-high-molecular-weight polyethylene. The only major difference between the specimens is the cooling rate of solution. The influence of chain entanglement density in an undrawn specimen on the increase in strength and modulus with ultra-drawing has been discussed. The higher chain entanglement density of the undrawn specimen is the reason for the slopes of strength and modulus versus draw ratio being steeper in the gel-casting method. However, it was found that the differences in the above slopes between the two methods could not be explained by the changes in crystalline orientation and crystalline size with ultra-drawing.

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The ultra-drawing behaviour of ultra-high-molecular-weight polyethylene: comparison of the gel-like spherulite pressing method and the gel-casting method

Abstract

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