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浙江大学学报（农业与生命科学版）
浙江大学学报（农业与生命科学版）  2024, Vol. 50 Issue (5): 796-804    DOI: 10.3785/j.issn.1008-9209.2023.04.271
资源利用与环境保护     
烷基化对竹粉/玉米醇溶蛋白复合膜材料性能的影响
魏俞涌1(),张庆法2,盛奎川2()
1.嘉兴职业技术学院智能制造学院，浙江 嘉兴 314036
2.浙江大学生物系统工程与食品科学学院，浙江 杭州 310058
Effects of silane modification on the properties of bamboo powder/zein composite films
Yuyong WEI1(),Qingfa ZHANG2,Kuichuan SHENG2()
1.School of Intelligent Manufacturing, Jiaxing Vocational and Technical College, Jiaxing 314036, Zhejiang, China
2.College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, Zhejiang, China
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摘要：

为实现玉米蛋白废弃物的高值化利用，以竹粉、玉米醇溶蛋白为原料制备复合膜材料，探究烷基化处理对竹粉/玉米醇溶蛋白复合膜材料性能的影响。结果表明：适宜浓度的硅烷偶联剂降低了竹粉的极性，提高了竹粉与玉米醇溶蛋白的相容性，延缓了玉米醇溶蛋白的热分解速率，提高了玉米醇溶蛋白的热稳定性，改善了竹粉/玉米醇溶蛋白复合膜的拉伸强度与断裂伸长率。其中，硅烷偶联剂和二氧化硅联合处理竹粉所制备的玉米醇溶蛋白复合膜材料在本研究中表现出最佳的综合力学性能，其拉伸强度、拉伸模量、断裂伸长率分别为0.23 MPa、4.67 MPa、408.07%。本研究结果可为生物质/玉米醇溶蛋白复合材料性能的提升提供技术支持。
关键词： 竹粉;  玉米醇溶蛋白;  烷基化;  复合膜材料;  力学性能    
Abstract:

To achieve high-value utilization of corn protein waste, composite films were prepared from bamboo powder and zein, and the effects of silane modification on the properties of bamboo powder/zein composite films were studied. The results showed that the appropriate concentrations of the silane coupling agent reduced the polarity of the bamboo powder, improved the compatibility between the bamboo powder and zein, delayed the thermal decomposition rate of zein, enhanced the thermal stability of zein, and improved the tensile strength and elongation at break of the bamboo powder/zein composite films. Among all the composite film samples, the zein composite films prepared by combined treatment with a silane coupling agent and silica exhibited the best comprehensive mechanical properties, with a tensile strength of 0.23 MPa, tensile modulus of 4.67 MPa, and elongation at break of 408.07%. These results can provide technical support for the improvement of the properties of biomass/zein composites.
Key words: bamboo powder    zein    silane modification    composite films    mechanical properties
收稿日期: 2023-04-27 出版日期: 2024-10-31
CLC:  TB332  
基金资助: 浙江省嘉兴市科技计划项目(2019AY11022);浙江省自然科学基金项目(LY22C160003);中国博士后科学基金项目(2021M692807)
通讯作者: 盛奎川     E-mail: weiyuyong66@sina.com;kcsheng@zju.edu.cn
作者简介: 魏俞涌（https://orcid.org/0000-0001-8429-4541），E-mail：weiyuyong66@sina.com
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引用本文:

魏俞涌,张庆法,盛奎川. 烷基化对竹粉/玉米醇溶蛋白复合膜材料性能的影响[J]. 浙江大学学报（农业与生命科学版）, 2024, 50(5): 796-804.

Yuyong WEI,Qingfa ZHANG,Kuichuan SHENG. Effects of silane modification on the properties of bamboo powder/zein composite films. Journal of Zhejiang University (Agriculture and Life Sciences), 2024, 50(5): 796-804.

链接本文:

https://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2023.04.271    或    https://www.zjujournals.com/agr/CN/Y2024/V50/I5/796

样品

Sample

ZFBZFBCZFK1-ZFK2-ZFK4-ZFK8-ZFK16-ZFSi-ZFKSi-ZF
玉米醇溶蛋白 Zein10101010101010101010
聚乙二醇 PEG2222222222
丙三醇 Glycerol2222222222
竹粉 Bamboo powder00.20.2000000.10
生物炭 Biochar000.10.10.10.10.10.10.10.1
KB-10000.2000000
KB-200000.200000
KB-4000000.20000
KB-80000000.2000
KB-1600000000.200
二氧化硅SiO2000000000.10
KB-Si0000000000.2
表1  复合膜材料配方 (g)
图1  烷基化竹粉的傅里叶变换红外光谱图
图2  烷基化竹粉的微观结构
图3  竹粉的烷基化反应机制
图4  复合膜材料的XRD图谱

样品

Sample

ZFBZFBCZFK1-ZFK2-ZFK4-ZFK8-ZFK16-ZFSi-ZFKSi-ZF

左接触角

Left contact angle

54.8046.7152.4955.4357.5055.6056.5656.4448.1757.43

右接触角

Right contact angle

55.2942.0149.4553.2953.6555.9653.7054.9350.1956.76
表2  复合膜材料的左右接触角 (°)
图5  复合膜材料的热稳定性

参数

Parameter

ZFBZFBCZFK1-ZFK2-ZFK4-ZFK8-ZFK16-ZFSi-ZFKSi-ZF
T160.8573.9869.6574.2474.2372.3374.8775.8271.2879.66
T2132.73135.59150.38150.69152.13147.03148.91151.77159.64169.20
T3250.84250.38257.28242.46254.61253.69255.23256.97257.45255.43
T4329.16330.49330.56330.72331.11331.04331.03331.19331.04331.34
表3  复合膜材料的TGA参数 (℃)

样品

Sample

拉伸强度

Tensile strength/MPa

拉伸模量

Tensile modulus/MPa

断裂伸长率

Elongation at break/%

ZF0.31±0.02a2.33±0.17d197.87±6.69h
BZF0.22±0.01bcd4.67±0.17a262.93±6.20g
BCZF0.24±0.01bc4.17±0.44ab327.27±2.51f
K1-ZF0.13±0.02e3.17±0.17bcd326.73±5.32f
K2-ZF0.16±0.03de3.17±0.44bcd359.83±12.62de
K4-ZF0.19±0.01cd2.00±0.50d440.57±4.93a
K8-ZF0.26±0.02ab4.00±0.58abc431.73±2.89ab
K16-ZF0.19±0.01cd2.83±0.73cd348.53±19.97ef
Si-ZF0.13±0.02e4.83±0.33a382.17±8.33cd
KSi-ZF0.23±0.04bcd4.67±0.17a408.07±7.60bc
表4  复合膜材料的拉伸性能
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