本文選題：羧甲基纖維素 + 納米纖維素　； 參考：《包裝工程》2017年17期

【摘要】：目的為了獲得一種可用于食品包裝的羧甲基纖維素增強膜。方法以羧甲基纖維素(CMC)為成膜基底,甘油為增塑劑,分別將質(zhì)量分數(shù)為1%,3%,5%和10%的納米纖維素(NCC)添加到CMC中,共混流延制備羧甲基纖維素增強膜(CMC-NCC)。結(jié)果 NCC的加入,提高了CMC的力學性能和對水蒸氣的阻隔性能,還提高了CMC的熱性能。FT-IR分析結(jié)果表明,CMC與NCC兩者間形成了分子間氫鍵;XRD分析結(jié)果表明,NCC可以改變CMC的結(jié)晶排列。當添加質(zhì)量分數(shù)為5%的NCC時,CMC-NCC的拉伸強度比純CMC膜提高了25.6%,斷裂伸長率降低了21.3%,透濕量降低了9%,熱穩(wěn)定性提高了2%,透光率維持在87%以上。結(jié)論 CMC增強膜具有力學性能高、阻濕性能好等優(yōu)點,NCC提高了CMC的成膜品質(zhì)。
[Abstract]:Objective to obtain a carboxymethyl cellulose reinforced membrane for food packaging. Methods Carboxymethyl cellulose (CMC) was used as the film substrate and glycerol as plasticizer. The CMC-NCCs were added to CMC with 5% and 10% nanocellulose by mass fraction, respectively. Results the addition of NCC improved the mechanical properties and barrier properties of CMC to water vapor, and the thermal properties of CMC. FT-IR analysis showed that the formation of intermolecular hydrogen bonds between CMC and NCC showed that NCCs could change the crystalline arrangement of CMC. When 5% NCC was added, the tensile strength of CMC-NCC was 25.6% higher than that of pure CMC film, the elongation at break was decreased by 23.3%, the moisture permeability was decreased by 9%, the thermal stability was increased by 2%, and the transmittance was maintained at more than 87%. Conclusion CMC reinforced film has the advantages of high mechanical properties, good moisture resistance and so on. It can improve the film forming quality of CMC.
【作者單位】： 齊齊哈爾大學;
【基金】：黑龍江省教育廳基本業(yè)務(wù)專項(135109305) 大學生創(chuàng)新創(chuàng)業(yè)訓練計劃(201710221132) 齊齊哈爾大學教研青年項目(2015063)
【分類號】：TB484

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