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首页> 外文期刊>Rubber Chemistry and Technology >CHARACTERISTICS OF STRAIN-INDUCED CRYSTALLIZATION IN NATURAL RUBBER DURING FATIGUE TESTING: IN SITU WIDE-ANGLE X-RAY DIFFRACTION MEASUREMENTS USING SYNCHROTRON RADIATION
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CHARACTERISTICS OF STRAIN-INDUCED CRYSTALLIZATION IN NATURAL RUBBER DURING FATIGUE TESTING: IN SITU WIDE-ANGLE X-RAY DIFFRACTION MEASUREMENTS USING SYNCHROTRON RADIATION

机译：疲劳试验过程中天然橡胶应变诱发的结晶特性：使用同步辐射进行原位宽角X射线衍射测量

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Strain-induced crystallization of carbon black-filled natural rubber is investigated by wide-angle X-ray diffraction (WAXD) during in situ fatigue tests using synchrotron radiation. Thanks to an original experimental method, we measure the evolution with the number of cycles of: (i) the index of crystallinity, both (ii) size and (iii) orientation of the crystallites, and finally (iv) the lattice parameters. It is shown that when the minimum stretch ratio of the fatigue test is lower than the onset of melting of the crystallites, then the index of crystallinity and the size of the crystallites decrease, whereas they increase when the minimum stretch ratio is higher than the onset of melting. For all the fatigue tests, the misorientation of the crystallites slightly decreases and the lattice parameters remain constant with the number of cycles.
机译：在使用同步加速器辐射的原位疲劳测试过程中，通过广角X射线衍射（WAXD）研究了炭黑填充天然橡胶的应变诱导结晶。得益于原始的实验方法，我们用以下循环次数来测量演化：（i）结晶度指数，（ii）晶粒尺寸和（iii）晶粒取向以及最后（iv）晶格参数。结果表明，当疲劳试验的最小拉伸比低于微晶熔化开始时，则结晶度指数和微晶尺寸减小，而当最小拉伸比高于开始时，它们增加。融化。对于所有疲劳测试，微晶的失取向都略有减少，晶格参数随循环次数保持恒定。

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