| 摘要: |
| 目的 研究不同特定环境条件下笋壳纤维模塑产品降解性能的差异。方法 以笋壳纤维为原料，利用湿压成型工艺制备笋壳纤维模塑产品;采用土壤掩埋、户外老化、化学浸渍、酶处理等方法对产品进行降解处理;通过肉眼观察、质量损失分析、红外光谱、扫描电镜等测试，研究不同物理、化学、生物因素作用下笋壳纤维模塑产品的降解速度和表现。结果 模塑产品在水溶液环境下7 d的降解作用比土壤掩埋和户外老化28 d明显;纤维素酶缓冲溶液的降解作用比酸和碱溶液明显，漂白产品降解7 d的质量损失率为11.54%~22.41%，高于本色产品的6.33%~21.26%。结论 笋壳纤维模塑产品在多种环境条件下发生一定程度的降解，纤维整体结构基本保持稳定，具有作为食品、日化用品包装基材的潜力。 |
| 关键词: 笋壳 纤维 纸浆 模塑制品 降解 户外老化 |
| DOI：10.19554/j.cnki.1001-3563.2025.07.001 |
| 分类号: |
| 基金项目:深圳市创新创业计划科技重大专项(KJZD20230923114359027) |
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| Degradation Study of Bamboo Shoot Shell Fiber Molded Product in Different Environments |
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CHENG Yanfei1, HUANG Ruanying2, HAN Guocheng2, LIN Qinbao1
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(1. Jinan University, Guangdong Zhuhai 519070, China;2. Shenzhen YUTO Packaging Technology Co., Ltd., Guangdong Shenzhen 518108, China)
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| Abstract: |
| The work aims to study the difference of degradation performance of bamboo shoot shell fiber molded products under different specific environmental conditions. Bamboo shoot shell fiber molded products were prepared by wet compression process with bamboo shoot shell fiber. The products were degraded by soil burying, outdoor aging, chemical impregnation and enzyme treatment. The degradation behavior affected by different physical, chemical and biological factors was studied by naked-eye observation, mass loss analysis, infrared spectroscopy and scanning electron microscopy. The results showed that the degradation of molded products kept in aqueous solution for 7 days was more obvious than that of soil burying and outdoor aging for 28 days, and the degradation in cellulase buffer solution was more remarkable than that of acid and alkali solution, the mass loss of delignified products ranged from 11.54%-2.41%, while the mass loss of undelignified products ranged from 6.33%-1.26%. The molded product of bamboo shoot shell fiber can be degraded to a certain extent under various environmental conditions, and the overall structure of the fiber is basically maintained, demonstrating the potential as package substrates of food and household chemical products. |
| Key words: bamboo shoots shell fiber paper pulp molded products degradation outdoor aging |
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