超声波协同Fenton氧化改性木质素对HDPE基复合材料的影响

林叶, 覃廖青, 梁春媚, 冼学权

PDF(2338 KB)
PDF(2338 KB)
塑料科技 ›› 2024, Vol. 52 ›› Issue (05) : 13-17. DOI: 10.15925/j.cnki.issn1005-3360.2024.05.003
理论与研究

超声波协同Fenton氧化改性木质素对HDPE基复合材料的影响

作者信息 +

Effect of Ultrasound Assisted Fenton Oxidation Modified Lignin on HDPE Based Composites

Author information +
History +

摘要

用超声波协同Fenton氧化的方法对木质素进行改性处理,并制备了高密度聚乙烯/木质素复合材料(HDPE/Lig),分析了改性前后木质素的官能团和分子量变化,并探讨了改性前后木质素含量对复合材料的力学性能、微观结构和流变性能的影响。结果表明:经超声波-Fenton氧化改性后,木质素数均分子量(M n)从15 034 g/mol下降至6 375 g/mol,甲氧基减少,酚羟基及羧基增加。HDPE/Lig的拉伸强度、冲击强度随木质素含量增加呈现先升高后降低的趋势。改性后,木质素的最佳填充量由10%提高至20%。改性后木质素的分散性和相容性得到提高,材料的微相分离程度降低,物理强制增容效果更好。原木质素导致HDPE黏度增大,木质素经过超声波-Fenton氧化后,可以降低复合材料的黏度、储能模量和损耗模量。

Abstract

lignin was modified by ultrasonic assisted Fenton oxidation, and high density polyethylene/lignin composites (HDPE/Lig) were prepared. The changes of functional groups and molecular weight of lignin before and after modification were analyzed, and the effects of lignin content before and after modification on mechanical properties, microstructure and rheological properties of the composites were discussed. The results show that the number average molecular weight (M n) of lignin modified by ultrasonic-Fenton oxidation decreases from 15 034 g/mol to 6 375 g/mol, methoxy group decreases, phenolic hydroxyl group and carboxyl group increase. The tensile strength and impact strength of HDPE/Lig increase first and then decrease with the increase of lignin content. After modification, the optimum filling amount of lignin increases from 10% to 20%. After modification, the dispersity and compatibility of lignin are improved, the degree of microphase separation is reduced, and the physical forced compatibilization effect is better. The viscosity of HDPE is increased by lignin, and the viscosity, storage modulus and loss modulus of HDPE composites are decreased by ultrasonic-Fenton oxidation of lignin.

关键词

木质素 / 高密度聚乙烯 / Fenton氧化 / 超声波

Key words

Lignin / High density polyethylene / Fenton oxidation / Ultrasonic

中图分类号

TQ322

引用本文

导出引用
林叶 , 覃廖青 , 梁春媚 , . 超声波协同Fenton氧化改性木质素对HDPE基复合材料的影响. 塑料科技. 2024, 52(05): 13-17 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.05.003
LIN Ye, QIN Liao-qing, LIANG Chun-mei, et al. Effect of Ultrasound Assisted Fenton Oxidation Modified Lignin on HDPE Based Composites[J]. Plastics Science and Technology. 2024, 52(05): 13-17 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.05.003

参考文献

1
郭启昌,毛璟博,刘春雨,等.木质素模型化合物愈创木酚加氢脱氧反应研究进展[J].辽宁石油化工大学学报,2022,42(5):1-12.
2
DOHERTY W O S, MOUSAVIOUN P, FELLOWS C M. Value-adding to cellulosic ethanol lignin polymers[J]. Industrial Crops and Products, 2011, 33(2): 259-276.
3
陈福泉,赵永青,冯彦洪,等.木质素/热塑性塑料复合材料界面增容的研究进展[J].化工学报,2014,65(3):777-784.
4
殷怡琳,邸明伟.木质素/聚烯烃复合材料界面增容的研究进展[J].化工进展,2020,39(8):3135-3145.
5
周明松,孙章建,杨东杰,等.增塑剂对碱木质素/HDPE复合材料性能影响研究[J].高分子学报,2014(2):210-217.
6
李季,冯钠,杨亮,等.LDPE-g-GMA增容LDPE/木质素复合泡沫材料研究[J].现代塑料加工应用,2015(2):13-16.
7
HU L, STEVANOVIC T, RODRIGUE D. Compatibilization of kraft lignin-polyethylene composites using unreactive compatibilizers[J]. Journal of Applied Polymer Science, 2014, DOI: 10.1002/app.41040.
8
DEHNE L, VILA C, SAAKE B, et al. Esterification of kraft lignin as a method to improve structural and mechanical properties of ligninpolyethylene blends[J]. Journal of Applied Polymer Science, 2017, DOI: 10.1002/app.44582.
9
DEHNE L, VILA C, SAAKE B, et al. Influence of lignin source and esterification on properties of lignin-polyethylene blends[J]. Industrial Crops and Products, 2016, 86: 320-328.
10
BUONO P, DUVAL A, VERGE P, et al. New insights on the chemical modification of lignin: Acetylation versus silylation[J]. ACS Sustainable Chemistry & Engineering, 2016, 4: 5212-5222.
11
冼学权,杜芳黎,黄华林,等.机械活化改性木质素补强HDPE复合材料及其性能[J].工程塑料应用,2022,50(6):7-13.
12
孙楠,邸明伟.木质素在聚合物材料中应用的研究进展[J].高分子材料科学与工程,2021,37(5):141-148.
13
黄元,王志敏,张宏森,等.芬顿反应用于木质纤维素生物质预处理的研究现状[J].纤维素科学与技术,2018,26(4):68-75.
14
欧阳新平,谭友丹,邱学青.木质素氧化降解制备单酚类化合物[J].燃料化学学报,2014,42(6):677-682.
15
李得钊,胡芳,许秀葵,等.超声波强化木质纤维素预处理的研究进展[J].纤维素科学与技术,2020,28(1):69-77.
16
ZHU X, WANG D, LI N, et al. Bio-based wood adhesive from camelina protein (a biodiesel residue) and depolymerized lignin with improved water resistance [J]. ACS Omega, 2017, 2(11): 7996-8004.
17
刘俊红,杨红霞,李子健,等.超声波-过氧化氢去除麸皮中木质素的优化工艺研究[J].中国调味品,2016,41(7):49-52, 55.
18
张伟.生物炼制木质素基酚醛树脂的制备与应用[D].北京:中国林业科学研究院,2013.
19
贾玲,邓晋丽,王亚飞,等.有机酸水溶液提取玉米芯木质素及其性质[J].精细化工,2013,30(6):628-633.
20
LI H, CHAI X S, LIU M, et al. Novel method for the determination of the methoxyl content in lignin by headspace gas chromatography [J]. Journal of Agricultural and Food Chemistry, 2012, 60(21): 5307-5310.
21
李腾飞,武书彬,庄军平,等.氧化预处理木质素制备高性能木质素酚醛树脂胶黏剂[J].应用化工,2022,51(4):907-911.
22
WANG F, YANG X, ZOU Y. Effect of the maleation of lignosulfonate on the mechanical and thermal properties of lignosulfonate/poly(ε-caprolactone) blends[J]. Journal of Applied Polymer Science, 2016, DOI: 10.1002/app.42925.
23
刘忠林,刘婉玉,冼学权,等.HDPE/硅烷偶联剂改性木质素复合材料的性能研究[J].塑料科技,2022,50(6):1-5.
24
冼学权,杜芳黎,黄华林,等.HDPE/AGR复合材料与HDPE/HC复合材料的性能对比[J].塑料科技,2021,49(8):20-24.
25
甘卫星,刘金明,张建辉,等.木质素液化改性酚醛树脂研究进展[J].林业工程学报,2022,7(3):11-19.
26
周吓星,陈礼辉,林巧佳.硅烷对竹塑发泡材料流变及力学性能的影响[J].福建林学院学报,2012,32(2):183-187.

基金

广西高校中青年教师科研基础能力提升项目(2023KY1371)
广西科学院科研发展基金项目(2021YFJ1208)

评论

PDF(2338 KB)

Accesses

Citation

Detail

段落导航
相关文章

/