Polymerization under different gravity conditions

被引：19

作者：

Briskman, V

Kostarev, K

Levtov, V

Lyubimova, T

Mashinsky, A

Nechitailo, G

Romanov, V

机构：

[1] Inst. of Continuous Media Mechanics, UB RAS, Perm

[2] SPA Kompozit, Kaliningrad, Moscow Region

[3] Institute of Biomedical Problems, Moscow

[4] SPA Energia, Moscow

来源：

ACTA ASTRONAUTICA | 1996年 / 39卷 / 05期

关键词：

D O I：

10.1016/S0094-5765(96)00068-9

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The paper reviews research into the influence of body forces on polymerization at three qualitatively different gravity levels: microgravity, terrestrial and high gravity conditoins. In orbital conditions the photopolymerization of polyacrylamide gel (PAG) was found to be developing as a frontal process in stagnant liquid. Terrestrial experiments and mathematical modelling have demonstrated the existence of convective flows and their strong influence both on structuration and on the final PAG structure. Experiments in centrifugal field and numerical calculations performed for high gravity conditions revealed that the gel matrix properties are graded along the body force direction. (C) 1997 Elsevier Science Ltd.

引用

页码：395 / 402

页数：8

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