Characterization of Lignocellulosic Fibers Reinforced with Poly(vinyl alcohol)

Q2 Agricultural and Biological Sciences Applied Environmental Biotechnology Pub Date : 2021-05-11 DOI:10.26789/AEB.2021.01.002

M. Anand, R. Ravishankar, K. Vasist, Madhu H N

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Abstract

The demands for materials made of plastics are rapidly increasing, especially in food packaging application. Recently, attention has been drawn to the use of bio-reinforced composites in packaging, automotive, medical and construction applications due to increased concern for environmental sustainability. Poly(vinyl alcohol) (PVA) films reinforced with crystals (unbleached) prepared by solution casting method possessed significantly improved properties compared to film reinforced with cellulose (bleached). From the results, PVA films with the addition of 4% (w/w) of crystalline cellulose exhibited best combination of properties. In addition to good mechanical properties, this composite has good water resistance and biodegradability. The water absorption of biocomposite was found to be 22.63%. From X - ray diffraction (XRD) analysis, diffraction peaks of biocomposite was observed at 2θ = 22.4384. From scanning electron microscopy (SEM) analysis it was found that fractures at surfaces of biocomposite film were smooth and even without any porosity and uniform dispersion of jute crystals in the matrix.

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聚乙烯醇增强木质纤维素纤维的表征

对塑料材料的需求正在迅速增加，特别是在食品包装方面的应用。最近，由于对环境可持续性的日益关注，生物增强复合材料在包装、汽车、医疗和建筑应用中的应用引起了人们的关注。用溶液浇铸法制备的结晶增强(未漂白)聚乙烯醇(PVA)薄膜与纤维素增强(漂白)膜相比，性能有显著提高。结果表明，当结晶纤维素添加量为4% (w/w)时，PVA薄膜的综合性能最佳。除了良好的机械性能外，该复合材料还具有良好的耐水性和生物降解性。生物复合材料的吸水率为22.63%。X射线衍射(XRD)分析表明，复合材料的衍射峰位于2θ = 22.4384处。通过扫描电镜(SEM)分析发现，生物复合膜表面的裂缝光滑且均匀，基质中没有黄麻晶体的孔隙和均匀分布。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Environmental Biotechnology Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)

CiteScore

3.70

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0.00%

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