The Effect of the Cross-Link Density on the Strain Energy Density Function of the Reinforcement Rubber.

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  • 架橋密度が補強ゴムのひずみエネルギー密度関数へ与える効果
  • カキョウ ミツド ガ ホキョウ ゴム ノ ヒズミ エネルギー ミツド カンスウ エ アタエル コウカ

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Abstract

Kawabata et al observed that, in pure rubbers, the degree of cross-link density effects both the first and second term of the strain energy function (W function), as given by<br>W(I1, I2)=1/2νkT(I1-3)+ν1.5β(I1, I2)<br>where ν is the cross-link density. For reinforced rubbers, the W function was found to given by<br>W(I1, I2)=1/2νkT(I1-3)+ν1.5β(I1, I2)+γ(I1, φ, ν)<br>where γ is a function representing the effect of reinforcement, and is dependent on both ν and the volume fraction of carbon-black, φ. In this paper, we investigate the effect of cross-link density on the γ function. It is shown that the γ function for the SBR/carbon-black system is<br>γ(I1, φ, ν)=A1(φν)1.5•(I1-3)+A2φν2.5•Exp{1.35(I1-3)}<br>where A1 and A2 are constants.

Journal

  • NIPPON GOMU KYOKAISHI

    NIPPON GOMU KYOKAISHI 73 (11), 606-611, 2000

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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