界面聚合聚脲/聚氨酯复合壳体香精微胶囊的制备及性能

doi:10.16085/j.issn.1000-6613.2022-0202

化工进展 ›› 2022, Vol. 41 ›› Issue (8): 4432-4440.DOI: 10.16085/j.issn.1000-6613.2022-0202

界面聚合聚脲/聚氨酯复合壳体香精微胶囊的制备及性能

王乔逸¹^,²(), 陆少锋¹^,²(), 师文钊¹^,², 洪勋¹^,², 姚东霞¹^,², 张领¹^,²

^1.西安工程大学纺织科学与工程学院，陕西西安 710048
^2.西安工程大学功能性纺织材料及制品教育部重点实验室，陕西西安 710048

收稿日期:2022-02-06 修回日期:2022-05-16 出版日期:2022-08-25 发布日期:2022-08-22
通讯作者: 陆少锋
作者简介:王乔逸（1997—），男，硕士研究生，研究方向为功能性微胶囊材料。E-mail：wangqiaoyi123456@163.com。
基金资助:
陕西省重点研发计划(2022GY-351);西安市科技创新人才服务企业项目(2020KJRC0024);西安市碑林区2020年应用技术研发类项目(GX2001);西安工程大学研究生创新基金(chx2022001);国家自然科学基金青年科学基金(21908171);陕西省自然科学基础研究计划(2020JQ-825)

Preparation and properties of polyurea/polyurethane shell microencapsulated essence by interfacial polymerization

WANG Qiaoyi¹^,²(), LU Shaofeng¹^,²(), SHI Wenzhao¹^,², HONG Xun¹^,², YAO Dongxia¹^,², ZHANG Ling¹^,²

^1.School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an 710048, Shaanxi, China
^2.Key Laboratory of Functional Textile Material and Product(Xi’an Polytechnic University), Ministry of Education, Xi’an 710048, Shaanxi, China

Received:2022-02-06 Revised:2022-05-16 Online:2022-08-25 Published:2022-08-22
Contact: LU Shaofeng

摘要/Abstract

摘要：

以茉莉香精为芯材，以异氟尔酮二异氰酸酯（IPDI）分别与二乙烯三胺（DETA）、β-环糊精（β-CD）及β-CD/DETA反应物为壁材，采用界面聚合法制备了聚脲、聚氨酯、聚脲/聚氨酯3种不同结构壳体的香精微胶囊。探究了不同微胶囊壳体对微胶囊表观形貌、热稳定性、香精微胶囊缓释性的影响并通过动力学模型分析了香精扩散方式。结果表明，以β-CD/DETA制备的聚脲/聚氨酯复合壳体微胶囊成囊性优异，壳体致密完整，热稳定性和缓释性能最好，经其整理的纺织品可保持较浓香味90多天。3种香精微胶囊在100℃、120℃高温缓释数据均符合零级、一级、Ritger-Peppas及Higuchi动力学模型。聚脲/聚氨酯复合壳体Ritger-Peppas方程拟合后n值更加接近0.45，更符合Fick扩散，缓释性能更好。

关键词: 界面, 聚合, 香精, 微胶囊, 动力学模型

Abstract:

Flavor microcapsules with three different structural shells of polyurea, polyurethane and polyurea/polyurethane were prepared by interfacial polymerization using jasmine flavor as the core material and isoflurone diisocyanate (IPDI) with diethylenetriamine (DETA), β-cyclodextrin (β-CD) and β-CD/DETA reactants as the wall material, respectively. The effects of different microcapsules shells on the microcapsules’ apparent morphology, thermal stability and flavor microcapsules’ slow release were investigated, and the flavor diffusion mode was analyzed by kinetic model. The results showed that the polyurea/polyurethane composite shell microcapsules prepared with β-CD/DETA had excellent capsule formation, dense and complete shells, the best thermal stability and slow release performance, and the textiles finished by them could maintain a strong fragrance for more than 90 days. The data of high-temperature slow release of the three flavor microcapsules at 100℃ and 120℃ were in accordance with the zero-level, first-level, Ritger-Peppas and Higuchi kinetic models. The Ritger-Peppas equation fitted to the polyurea/polyurethane composite shell had an n-value closer to 0.45, which was more consistent with Fick diffusion and better retarding performance.

Key words: interface, polymerization, essence, microencapsulation, kinetic modeling

中图分类号:

TB34

王乔逸, 陆少锋, 师文钊, 洪勋, 姚东霞, 张领. 界面聚合聚脲/聚氨酯复合壳体香精微胶囊的制备及性能[J]. 化工进展, 2022, 41(8): 4432-4440.

WANG Qiaoyi, LU Shaofeng, SHI Wenzhao, HONG Xun, YAO Dongxia, ZHANG Ling. Preparation and properties of polyurea/polyurethane shell microencapsulated essence by interfacial polymerization[J]. Chemical Industry and Engineering Progress, 2022, 41(8): 4432-4440.

图/表 14

参考文献 23

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样品	IPDI/g	β-CD/g	DETA/g
样品1	10	0	4.66
样品2	10	5	0
样品3	10	2.5	2.33

样品	IPDI/g	β-CD/g	DETA/g
样品1	10	0	4.66
样品2	10	5	0
样品3	10	2.5	2.33

放置时间/d	香味/级
放置时间/d	样品1	样品2	样品3
15	5	5	5
30	4	4	4
45	4	3	4
60	3	3	4
75	3	2	4
90	2	2	3
105	1	1	3
120	1	1	2

放置时间/d	香味/级
放置时间/d	样品1	样品2	样品3
15	5	5	5
30	4	4	4
45	4	3	4
60	3	3	4
75	3	2	4
90	2	2	3
105	1	1	3
120	1	1	2

放置时间/d	香味/级
放置时间/d	样品1	样品2	样品3
15	5	5	5
30	4	4	4
45	3	3	4
60	3	2	4
75	2	2	3
90	2	1	3
105	1	1	2
120	1	1	2

界面聚合聚脲/聚氨酯复合壳体香精微胶囊的制备及性能

Preparation and properties of polyurea/polyurethane shell microencapsulated essence by interfacial polymerization

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图/表 14

参考文献 23

相关文章 15

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温度	样品	动力学模型	动力学方程	R²
100℃	样品1	零级动力学	Y=16.003+2.619X	0.91342
		一级动力学	Y=30.374-20.122exp(-X/2.27915)	0.99880
		Ritger-Peppas	Q=17.97856X^0.27809	0.98247
		Higuchi	Y=10.27697+7.99848X^0.5	0.96187
	样品2	零级动力学	Y=22.61345+1.94745X	0.93833
		一级动力学	Y=46.762-29.3512exp(-X/6.06854)	0.99307
		Ritger-Peppas	Q=21.4117X^0.28414	0.99204
		Higuchi	Y=13.52487+8.886202X^0.5	0.98683
	样品3	零级动力学	Y=8.80693+0.92617X	0.98807
		一级动力学	Y=107.423-98.9256exp(-X/96.9228)	0.98789
		Ritger-Peppas	Q =7.13775X^0.4218	0.99498
		Higuchi	Y=2.7088+5.507508X^0.5	0.97369
120℃	样品1	零级动力学	Y=19.28+1.57714X	0.96889
		一级动力学	Y=-2.6432+22.3263exp(-X/17.3877)	0.96090
		Ritger-Peppas	Q =20.13493X^0.18441	0.91711
		Higuchi	Y=14.97632+5.44156X^0.5	0.94835
	样品2	零级动力学	Y=31.411+1.36X	0.95629
		一级动力学	Y=49.0702-19.5138exp(-X/7.8106)	0.97591
		Ritger-Peppas	Y=31.055X^0.14256	0.96654
		Higuchi	Y=26.15084+5.44156X^0.5	0.94835
	样品3	零级动力学	Y=10.225+2.075X	0.92073
		一级动力学	Y=28.5992-23.2782exp(-X/4.0988)	0.96974
		Ritger-Peppas	Q =11.470X^0.37399	0.97026
		Higuchi	Y=4.5746+7.20497X^0.5	0.95792

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