Enhanced heat sealability and barrier performance of guar gum/polyvinyl alcohol based on biocomposite film reinforced with micro-fibrillated cellulose for packaging application

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2025-03-01 DOI:10.1007/s00289-025-05701-x

Ram Kumar Deshmukh, Shefali Tripathi, Pradeep Kumar, Kirtiraj K. Gaikwad

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引用次数: 0

Abstract

Heat-sealing properties are vital for biopolymer-based food packaging, ensuring effective seals, preserving freshness, preventing contamination, and enhancing durability. This study examines the impact of incorporating micro-fibrillated cellulose (MFC) into guar gum and polyvinyl alcohol (PVA) composites for heat-sealable packaging. Significant improvements in tensile strength, water vapor barrier properties, and heat-sealing capacity were observed compared to control films. The thickness of the film varies between 0.080 and 0.148 mm, the brightness ranges from 87.85 to 89.72, and the total color value ranges from 4.90 to 26.38. The mechanical strength of the GG/PVA/MFC0.1 and GG/PVA/MFC1.0% film is superior (7.80–9.00 MPa and elongation up to 90–98%) than the GG/PVA together without MFC. The heat-sealing strength of the developed film was superior for GG/PVA/MFC0.1 and GG/PVA/MFC1.0% as the tensile strength reached up to 60.13% improvement from GG/PVA composite. GG/PVA/MFC1.0% moisture vapor transmission rate significantly decreased to 2.09 ± 0.32 mg cm⁻² day⁻¹ from 2.55 ± 0.15 mg cm⁻² day⁻¹ of GG/PVA. The oxygen transmission rate was vividly reduced from 0.098 cm³/m² day for neat guar gum film to 0.026 cm³/m² day for micro-fibrillated cellulose-incorporated composite. Incorporating biobased materials in this study would meet the demand for sustainable packaging, serving as a viable alternative to conventional plastics and enhancing environmental sustainability.

Graphical Abstract

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微纤纤维增强瓜尔胶/聚乙烯醇生物复合膜的热封性和阻隔性

热封性能是至关重要的生物聚合物为基础的食品包装，确保有效的密封，保持新鲜度，防止污染，并提高耐久性。本研究考察了将微纤化纤维素（MFC）掺入瓜尔胶和聚乙烯醇（PVA）复合材料中用于热封包装的影响。与对照膜相比，抗拉强度、水汽阻隔性能和热封能力均有显著提高。薄膜厚度在0.080 ~ 0.148 mm之间，亮度在87.85 ~ 89.72之间，总显色值在4.90 ~ 26.38之间。GG/PVA/MFC0.1和GG/PVA/MFC1.0%膜的机械强度（7.80 ~ 9.00 MPa）优于未加MFC的GG/PVA膜，伸长率可达90 ~ 98%。GG/PVA/MFC0.1和GG/PVA/MFC1.0%的显影膜热封强度较GG/PVA复合材料高，拉伸强度比GG/PVA复合材料提高60.13%。GG/PVA/MFC1.0%的水汽透过率由GG/PVA的2.55±0.15 mg cm−2 day−1显著降低至2.09±0.32 mg cm−2 day−1。氧透过率从纯瓜尔胶膜的0.098 cm3/m2天明显降低到微纤化纤维素复合材料的0.026 cm3/m2天。在这项研究中加入生物基材料将满足可持续包装的需求，作为传统塑料的可行替代品，并提高环境的可持续性。图形抽象

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."