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首页> 外文期刊>Journal of industrial and engineering chemistry >The effect of gamma irradiation on mechanical, thermal and morphological properties of glass fiber reinforced polyethylene waste/ reclaim rubber composites
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The effect of gamma irradiation on mechanical, thermal and morphological properties of glass fiber reinforced polyethylene waste/ reclaim rubber composites

机译：γ辐照对玻璃纤维增​​强聚乙烯废料/再生橡胶复合材料的机械，热学和形态学性能的影响

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摘要

Composites of waste polyethylene (WPE), collected from municipal solid waste/recycled waste rubber powder (RWRP) reactive compatibilizing agent, maleic anhydride (MA) and glass fiber (GF) up to 20 wt%, prepared by melting and irradiated with gamma-rays up to 150 kGy have been studied. Tensile strength (T_s), elongation at break (E_b), elastic modulus, hardness, thermal and morphological parameters of the irradiated composites were investigated. The examined mechanical properties have been found to improve largely with filler content. Interesting E_b behavior has been detected for the irradiated composites loaded up to ~10 wt% GF and has been basically discussed in view of matrix crystallinity and morphology. TGA thermograms of unirradiated composites revealed enhanced thermal stability than that reported for the blend whereas comparatively slight improvement has been demonstrated by irradiation. Whereby insignificant alteration in T_m values was observed by loading or irradiation, yet ΔH_m maximum of 3.41 J/g, indicated for the 5 wt% GF irradiated composite with an integral dose of 75 kGy, emphasizes the influence of the relatively moderate load and dose levels on matrix stability. The phenomenon has been confirmed by the respective SEM micrographs.
机译：从城市固体废物/再生废橡胶粉（RWRP）反应性增容剂，马来酸酐（MA）和玻璃纤维（GF）中收集的废聚乙烯（WPE）的复合材料，其含量最高为20 wt％，通过熔融和用γ-射线辐照已经研究了高达150 kGy的射线。研究了辐照复合材料的拉伸强度（T_s），断裂伸长率（E_b），弹性模量，硬度，热学和形貌参数。已经发现，所检查的机械性能随着填料含量而大大改善。对于载有〜10 wt％GF的辐照复合材料，已经检测到有趣的E_b行为，并且已经针对基质的结晶度和形态进行了基本讨论。与共混物相比，未辐照复合材料的TGA热分析图显示出更高的热稳定性，而辐照则显示出相对轻微的改善。因此，通过加载或辐照观察到T_m值无明显变化，但对于总剂量为75 kGy的5 wt％GF辐照复合材料，ΔH_m最大值为3.41 J / g，强调了相对中等的载荷和剂量水平的影响关于基质稳定性。该现象已通过相应的SEM显微照片证实。

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