Time-resolved simultaneous SAXS/WAXS of the drawing of polyethylene at the daresbury SRS

被引：20

作者：

Hughes, DJ ^{[1
]}

Mahendrasingam, A ^{[1
]}

Heeley, EL ^{[1
]}

Oatway, WB ^{[1
]}

Martin, C ^{[1
]}

TownsAndrews, E ^{[1
]}

Fuller, W ^{[1
]}

机构：

[1] DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1996年 / 3卷

关键词：

SAXS; WAXS; X-ray fibre diffraction; polyethylene; time-resolved studies;

D O I：

10.1107/S0909049596000192

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A system has been developed which represents a significant advance in the quality and extent of small- and wide-angle X-ray scattering data (SAXS and WAXS) that can be recorded simultaneously with strain data during the drawing and annealing of polymer materials. WAXS data are recorded using a Photonic Science charge-coupled-device area detector and SAXS data using a gas-filled multiwire area detector. Strain data, for the region of the specimen from which the SAXS/WAXS data are collected, are calculated from an accurately synchronized continuously recorded video image of the specimen. The system allows X-ray and video image data to be collected as a series of frames with essentially no 'dead-time' between frames. The data are fully two-dimensional and can be collected for a wide range of d spacings. The use of this system to investigate the stress-induced orientation and phase changes during the drawing of a range of grades of commercially available polyethylene is described.

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收藏

页码：84 / 90

页数：7

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