Characterization and optimization of mechanical properties of bamboo/nanoclay/polyvinyl alcohol/styrene nanocomposites using response surface methodology,Journal of Vinyl and Additive Technology

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Characterization and optimization of mechanical properties of bamboo/nanoclay/polyvinyl alcohol/styrene nanocomposites using response surface methodology
Journal of Vinyl and Additive Technology ( IF 3.8 ) Pub Date : 2020-08-13 , DOI: 10.1002/vnl.21792
Muhammad Adamu _{1,

2} , Md Rezaur Rahman ₁ , Muhammad Khusairy Bin Bakri ₁ , Fahmi Asyadi Bin Md Yusof ₃ , Afrasyab Khan ₄

Affiliation

This study demonstrates the effects of impregnation of polyvinyl alcohol (PVA), styrene, and nanoclay on the compositional, mechanical, morphological, and thermal properties of bamboo and its nanocomposites (NCs). Design Expert software was used to optimize the materials and modulus of elasticity as well as the modulus of rupture of the composites. Models were obtained with R2 of 0.9999 and 0.998 for the modulus of elasticity (MOE) and the modulus of rupture (MOR), respectively. The MOE and MOR were found to increase significantly after the formation of NC that indicated improvement of mechanical properties of the bamboo NCs. The polymerization of PVA‐co‐styrene and dispersion of nanoclay were confirmed by the compositional analysis. The X‐ray diffraction analysis showed that the degree of crystallinity was slightly improved upon impregnation with PVA‐co‐styrene, while reduction in the hydroxyl groups was observed using the Fourier transform infrared. The scanning electron microscopy observation showed tightly filled cell cavities of the bamboo matrix. The thermal stability of the formed NCs were found to be slightly less stable than the raw bamboo (RB) with the differential scanning calorimetry showing low glass transition temperature and the thermogravimetric analysis showed lower decomposition temperatures for the NCs compared to RB as a result of plastic property of the styrene.

中文翻译：

响应面法表征和优化竹/纳米粘土/聚乙烯醇/苯乙烯纳米复合材料的力学性能

这项研究证明了聚乙烯醇（PVA），苯乙烯和纳米粘土的浸渍对竹及其纳米复合材料（NCs）的组成，机械，形态和热性能的影响。设计专家软件用于优化材料和弹性模量以及复合材料的断裂模量。获得的模型的弹性模量（MOE）和断裂模量（MOR）的R2分别为0.9999和0.998。发现NC形成后MOE和MOR显着增加，这表明竹NC的机械性能得到改善。PVA- co的聚合组成分析证实了苯乙烯和纳米粘土的分散性。X射线衍射分析表明，结晶度在与PVA-浸渍略有改善共-苯乙烯，而用的是傅立叶变换红外观察到减少在羟基。扫描电子显微镜观察显示竹基质的细胞腔紧密填充。发现形成的NCs的热稳定性比生竹（RB）稍差，差示扫描量热法显示玻璃化转变温度低，而热重分析显示，与塑料相比，NCs的分解温度比RB低。苯乙烯的性质。

更新日期：2020-08-13

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