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首页> 外文期刊>Journal of Applied Polymer Science >Design and mechanism of controllable respiration polyamideamine-epichlorohydrin modied sugarcane bagasse pith hemicellulose film
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Design and mechanism of controllable respiration polyamideamine-epichlorohydrin modied sugarcane bagasse pith hemicellulose film

机译：可控呼吸聚酰胺氨基 - 表氯醇修正甘蔗泡沫粘虫草半纤维素膜的设计及机制

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摘要

The major challenge in hemicellulose blend films for food packaging is to overcome the inferior wet strength and hydrophilic properties of hemicellulose-based films. Inspired by the principle of wet strength of paper, novel bio-based packaging film with high barrier and strength properties was designed via bagasse pith hemicellulose as main substrate materials and polyamideamine-epichlorohydrin (PAE) as strengthening agent. The chemical characterization showed that the mechanical and barrier properties of the blend films were found to be strongly dependent upon the amount of PAE added in the films. Compared with the film without PAE, the tensile strength of PAE-containing film with optimal amount of 1% PAE increased by 100.25%, the water vapor permeability decreased by 23.25%, and the oxygen permeability decreased by 87.18%. The results showed that the new ester bond formed between PAE and hemicellulose caused the more excellent mechanical and barrier properties of films.
机译：食品包装用半纤维素共混膜的主要挑战是克服半纤维素基膜的湿强度和亲水性较差的缺点。受纸张湿强度原理的启发，以甘蔗渣浆半纤维素为主要基材，聚酰胺胺-环氧氯丙烷（PAE）为增强剂，设计了一种新型高阻隔性、高强度的生物基包装膜。化学表征表明，共混膜的机械性能和阻隔性能强烈依赖于PAE的添加量。与未添加PAE的薄膜相比，PAE添加量为1%时，薄膜的拉伸强度提高了100.25%，透湿性降低了23.25%，透氧性降低了87.18%。结果表明，PAE与半纤维素之间形成的新酯键使薄膜具有更优异的力学性能和阻隔性能。

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