Effect of heating-cooling cycle on the opto-structural properties of low-density polyethylene fibres using two-beam interference microscopy

H.M. El-Dessouky; K.M. Yassien; C.A. Lawrence

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Effect of heating-cooling cycle on the opto-structural properties of low-density polyethylene fibres using two-beam interference microscopy

机译：双光束干涉显微镜观察冷热循环对低密度聚乙烯纤维光学结构性能的影响

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A hot stage attached with a two-beam interference (Pluta) microscope was used to apply a heating-cooling cycle (HCC) on low-density polyethylene fibres (LDPE). The variation of the refractive indices (n~(||) and n~(┻) with the temperature was carried out during the heating and cooling of the LDPE fibres. The activation energy (E_a) and thermooptic coefficient (dn/dT) were calculated for the investigated LDPE fibres. The spectral dispersion curves, percent crystallinity and orientation function were determined for the treated LDPE fibres. It was found that the HCC for LDPE fibre implies: a reversible behaviour of both optical and structural properties against temperature and an improvement in the fibre crystallinity.

机译：使用装有两光束干涉（Pluta）显微镜的热台，对低密度聚乙烯纤维（LDPE）进行加热-冷却循环（HCC）。在LDPE纤维的加热和冷却过程中，折射率（n〜（||）和n〜（┻））随温度变化，其活化能（E_a）和热光系数（dn / dT）为计算了所研究的LDPE纤维的光谱色散曲线，结晶度百分比和取向函数，发现LDPE纤维的HCC意味着：光学和结构性质对温度的可逆行为以及改进在纤维的结晶度。

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来源
《The Journal of the Textile Institute》 |2010年第9期|P.812-822|共11页
作者
H.M. El-Dessouky; K.M. Yassien; C.A. Lawrence;
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作者单位

Fibres Research Lab, School of Design, University of Leeds, Leeds LS2 9JT, UK Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt;

rnPhysics Department, Faculty of Science, South Valley University, Aswan, Egypt;

rnPhysics Department, Faculty of Science, Mansoura University, Mansoura, Egypt;

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正文语种 eng
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interferometry; dispersion; crystallinity; thermooptic coefficient; polyethylene fibre;

机译：干涉测量分散;结晶度热光系数聚乙烯纤维;

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Effect of heating-cooling cycle on the opto-structural properties of low-density polyethylene fibres using two-beam interference microscopy

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