Preparation and Properties of Poly (urea-formaldehyde) Microcapsules Containing Polysulfide Sealant

doi:10.11901/1005.3093.2017.579

Chinese Journal of Materials Research

2018, Vol. 32

Issue (10): 730-736 DOI: 10.11901/1005.3093.2017.579

ARTICLES

Current Issue | Archive | Adv Search

Preparation and Properties of Poly (urea-formaldehyde) Microcapsules Containing Polysulfide Sealant

Xuan WANG¹, Tao JIN², Haowei WANG², Shengzhi LIAO², Huaiyu YANG¹(

)

1 Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2 China Special Vehicle Research Institute, Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, Jingmen 448035, China

Cite this article:

Xuan WANG, Tao JIN, Haowei WANG, Shengzhi LIAO, Huaiyu YANG. Preparation and Properties of Poly (urea-formaldehyde) Microcapsules Containing Polysulfide Sealant. Chinese Journal of Materials Research, 2018, 32(10): 730-736.

Download:

HTML

PDF(1526KB)
Export: BibTeX | EndNote (RIS)

Abstract

Microcapsules of the urea resin encapsulated polysulfide sealant was designed and prepared successfully by in situ polymerization technology with the poly(urea-formaldehyde) resin (PUF) as shell material and the polysulfide sealant as core material. The surface morphology and chemical structure of the microcapsule were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR),respectively. In order to further investigate the effect of microencapsulation process on the mechanical properties of polysulfide sealant film after curing, a mixture of polysulfide sealant microcapsule and a certain proportion of vulcanizing agent was made, and then to apply polysulfide sealant containing film on standard nuts or to prepare test pieces of polysulfide containing sealant film respectively for mechanical testing. According to the relevant standards, the breaking torque, demolition torque, tensile strength and hardness of the polysulfide sealant film with unencapsulated and encapsulated polysulfide sealant respectively were comparatively tested. The results showed that based on the in-situ polymerization of PUF, the polysulfide sealant microcapsules with regular surface morphology, narrow particle size distribution, rough surface and dense shell were successfully prepared under the optimum reaction conditions. In comparison with the unencapsulated polysulfide sealant, the micro-encapsulated polysulfide sealant could greatly improve the mechanical properties of the sealant film. In short, the present research may provide an important reference for the exploring pre-coating technique of polysulfide sealant in the future.

Key words: organic polymer materials polysulfide sealant microcapsules torque tensile property hardness

Received: 09 October 2017

ZTFLH:	TQ333
	O633

Fund: Supported by Special Project for Civil Aircraft of Ministry of Industry and Information Technology (No. MJ-2014-F-14)

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Xuan WANG
	Tao JIN
	Haowei WANG
	Shengzhi LIAO
	Huaiyu YANG

URL:

https://www.cjmr.org/EN/10.11901/1005.3093.2017.579 OR https://www.cjmr.org/EN/Y2018/V32/I10/730

Fig.1 FTIR spectra of urea-formaldehyde resin (a), polysulfide rubber (b) and polysulfide sealant microcapsules (c)

Fig.2 SEM (a) and optical (b) photographs of polysulfide sealant microcapsules prepared

Fig.3 Particle size distribution of polysulfide sealant microcapsules

Fig.4 Variations of T_b (a) and T_d (b) torques for polysulfide sealant before and after encapsulatoin with the curring time

Fig.5 Variation of tensile strength (a), breaking tensile stress (b) and eloongation rate of fracture (c) for polysulfide sealant before and after encapsulation with the curring time

Fig.6 Variation of hardness for polysulfide sealant before and after encapsulation with the curring time

[1]	Song Y D, Yang Y F, Wu S H.Development actuality analysis of aviation polysulfide sealant[J]. China Adhes., 2013, 22(2): 49(宋英红, 杨亚飞, 吴松华. 航空聚硫密封剂的发展现状分析[J]. 中国胶粘剂, 2013, 22(2): 49)
[2]	Yang Y F, Suo J Y, Zhang J Z, et al.Effect of coupling agent on bonding properties of modified polysulfide sealant[J]. Adhesion, 2011, 32(3): 65(杨亚飞, 索军营, 章谏正等. 偶联剂对改性聚硫密封剂粘接性能的影响[J]. 粘接, 2011, 32(3): 65
[3]	U. R. Evans, Mechanism of rusting[J]. Corros. Sci., 1969, 9(11): 81
[4]	Wang Z B, Shi Y X, Hong Q, et al.Preparation of modified polymer microspheres and its application in polysulfide sealant[J]. China Adhes., 2015, 24(5): 251(王忠兵, 石玉霞, 洪强等. 改性聚合物微球的制备及其在聚硫密封胶中的应用[J]. 中国胶粘剂, 2015, 24(5): 251)
[5]	A. M. Usmani, Chemistry and technology of polysulfidesealants[J]. Polym-Plast. Technol., 1982, 19(2): 165
[6]	Liu J, Su Z T, Li F P.Aeronautical rubber and sealing materials [M]. Beijing, National Defend Industry Press: 2011(刘嘉, 苏正涛, 栗付平. 航空橡胶与密封材料 [M]. 北京: 国防工业出版社, 2011)
[7]	Song Y H, Yang Y F, Wu S H.Influence of formulation of curing agent materials on curing of polysulfide sealant[J]. Adhesion, 2013, 4: 57(宋英红, 杨亚飞, 吴松华. 硫化剂原料及配方对聚硫密封剂硫化性能的影响[J]. 粘接, 2013, 4: 57)
[8]	Liu L P, Feng Z L, Liu J.Advance and application of aeronautical rubber and sealing materials[J]. Dual use technologies and products, 2013, 6: 13(刘丽萍, 冯志力, 刘嘉. 航空橡胶密封材料发展及应用[J]. 军民两用技术与产品, 2013, 6: 13)
[9]	F. Salaun, E. Devaux.Preparation of multinuclear microparticles using apolymerization in emulsion process[J]. J. Appl. Polym. Sci., 2008, 107: 244
[10]	S. N. Khorasani, S. Ataei, R. E. Neisiany, Microencapsulation of a coconut oil-based alkyd resin into poly (melamine-urea-formaldehyde) as shell for self-healing purposes[J]. Prog. Org. Coat., 2017, 111: 99
[11]	N. Shahabudin, R. Yahya, S. N. Gan, Microcapsules of poly (urea-formaldehyde) (PUF) containing alkyd from palm oil[J]. Mater. Today, 2016, 3S: 88
[12]	Song X Q, Duan Y P.Preparation and characterization of totally encapsulated microcapsules of jasmine fragrance[J]. Chin. J. Mater. Res., 2017, 31(1): 27(宋晓秋, 段玉萍. 全封闭型茉莉香精微胶囊的制备和表征[J]. 材料研究学报, 2017, 31(1): 27)
[13]	A. Bachmann, G. Litteral.Process for preparing discrete particles of microencapsulated liquid anaerobic compositions, [P]. US, No. 3826756, 1974
[14]	Yang X N, Huang H J, Gan Z Y, et al.Precoatable anaerobic adhesive microcapsule capable of raising penetration resistance of wall materials and preparation method thereof, [P]. CN, No 104941545A, 2015(杨晓娜, 黄海江, 甘志勇等. 能提高壁材抗渗透性的可预涂厌氧胶微胶囊及制备方法, [P]. CN, No 104941545A, 2015)
[15]	Chen Y, Hu XY, Zhang Y Z.Research progress of precoatable microcapsule type anaerobic adhesive[J]. China Adhesives, 2010, 19(6): 54(陈耀, 胡孝勇, 张银钟. 可预涂微胶囊厌氧胶的研究进展[J]. 中国胶粘剂, 2010, 19(6): 54)
[16]	S Lang, Q Zhou.Synthesis and characterization of poly(urea-formaldehyde) microcapsules containing linseed oil for self-healing coating development[J]. Prog. Org. Coat., 2017, 105: 99
[17]	D. G. Shchukin, A. A. Patel, G. B.Sukhorukov et al. Nanoassembly of Biodegradable Microcapsules for DNA Encasing,[J]. J. Am. Chem. Soc., 2004, 126(11): 3374
[18]	S. J. Park, Y. S. Shin, J. R. LEE, Preparation and characterization of microcapsules containing lemon oil[J]. J.Colloid. Interf. Sci., 2001, 241(2): 502
[19]	Tao X, Wu L, Wang D, et al.Preparation of poly (urea-formaldehyde) microcapsules filled with epoxy resins[J]. Polymer Materials Science and Engineering, 2009, 25(2): 160(陶新, 伍林, 汪冬等. 包覆石油醚的脲醛微胶囊的制备[J]. 高分子材料科学与工程, 2009, 25(2): 160)
[20]	Hao D X, Cheng Y Y, Wang L L, et al.Synthesis of urea-formaldehyde resin microspheres under surfactant conditions[J]. Acta Chim. Sinica, 2012, 70(3): 331(郝志显, 程艺艺, 王乐乐等. 表面活性剂存在条件下脲醛树脂微球的合成过程[J]. 化学学报, 2012, 70(3): 331)
[21]	M. de la Paz Miguel, R. Ollier, V. Alvarez, C. Vallo, Effect of the preparation method on the structure of linseed oil-filled poly(urea-formaldehyde) microcapsules[J]. Prog. Org. Coat., 2016, 97: 194
[22]	S. Chen, X. Lu, T. Wang, Z. Zhang, Preparation and characterization of urea-formaldehyde resin/reactive kaolinite composites[J]. Particuology, 2016, 24: 203
[23]	Wang X, Jin T, Wang H W, et al.Quantitative detection of TiO2 in polysulfide sealant by ultraviolet spectrophotometry method[J]. Chemical Analysis and Meterage, 2017, 26(4): 24(王璇, 金涛, 王浩伟等. 紫外分光光度法测定聚硫密封胶中二氧化钛[J]. 化学分析计量, 2017, 26(4): 24)
[24]	D. L. Wang, M. M. Chen, C. Y. Wang, et al.Synthesis of carbon microspheres from urea formaldehyde resin[J]. Mater. Lett., 2011, 65(7): 1069
[25]	B. J. Blaiszik, M. M. Caruso, D. A. Mcllroy, et al.Microcapsules filled with reactive solutions for self-healing materials[J]. Polymers, 2009, 50: 990
[26]	Zhang M, Zhang T, Tong X M, et al.Modification of urea-formaldehyde microcapsule, Journal of Functional Polymers, 2009, 22(3): 270(张敏, 张婷, 童晓梅等. 脲醛树脂微胶囊的改性[J]. 功能高分子学报, 2009, 22(3): 270)
[27]	Dong Y M.Practical analysis of polymer materials technology [M]. Beijing, China Petroleum Press, 1997(董炎明. 高分子材料实用剖析技术 [M]. 北京:中国石油出版社, 1997)
[28]	Qin P B.Research on the Properties of Two Liquid Polysulfide Rubber[J]. Synthetic Materials Aging and Application, 2017, 46(3): 43(秦蓬波. 两种液体聚硫橡胶性能对比研究[J]. 合成材料老化与应用, 2017, 46(3): 43)

[1]	OUYANG Kangxin, ZHOU Da, YANG Yufan, ZHANG Lei. Microstructure and Tensile Properties of Mg-Y-Er-Ni Alloy with Long Period Stacking Ordered Phases[J]. 材料研究学报, 2023, 37(9): 697-705.
[2]	LIU Jihao, CHI Hongxiao, WU Huibin, MA Dangshen, ZHOU Jian, XU Huixia. Heat Treatment Related Microstructure Evolution and Low Hardness Issue of Spray Forming M3 High Speed Steel[J]. 材料研究学报, 2023, 37(8): 625-632.
[3]	ZHANG Shuaijie, WU Qian, CHEN Zhitang, ZHENG Binsong, ZHANG Lei, XU Pian. Effect of Mn on Microstructure and Properties of Mg-Y-Cu Alloy[J]. 材料研究学报, 2023, 37(5): 362-370.
[4]	YE Jiaofeng, WANG Fei, ZUO Yang, ZHANG Junxiang, LUO Xiaoxiao, FENG Libang. Epoxy Resin-modified Thermo-reversible Polyurethane with High Strength, Toughness, and Self-healing Performance[J]. 材料研究学报, 2023, 37(4): 257-263.
[5]	LI Hanlou, JIAO Xiaoguang, ZHU Huanhuan, ZHAO Xiaohuan, JIAO Qingze, FENG Caihong, ZHAO Yun. Synthesis of Branched Fluorine-containing Polyesters and their Properties[J]. 材料研究学报, 2023, 37(4): 315-320.
[6]	MA Yizhou, ZHAO Qiuying, YANG Lu, QIU Jinhao. Preparation and Dielectric Energy Storage Properties of Thermoplastic Polyimide/Polyvinylidene Fluoride Composite Film[J]. 材料研究学报, 2023, 37(2): 89-94.
[7]	SHEN Yanlong, LI Beigang. Preparation of Magnetic Amino Acid-Functionalized Aluminum Alginate Gel Polymer and its Super Adsorption on Azo Dyes[J]. 材料研究学报, 2022, 36(3): 220-230.
[8]	LIU Zhiduo, ZHANG Haoyu, CHENG Jun, ZHOU Ge, ZHANG Xingjun, CHEN Lijia. Effect of Heat Treatment on Tensile Property of Ti-6Mo-5V-3Al-2Fe-2Zr Alloy[J]. 材料研究学报, 2022, 36(12): 919-925.
[9]	WANG Shengyuan, ZHANG Haoyu, ZHOU Ge, CHEN Xiaobo, CHEN Lijia. Effect of Solution Treatment Temperature on Microstructure and Tensile Properties of Ti-4Al-6Mo-2V-5Cr-2Zr Alloy[J]. 材料研究学报, 2022, 36(12): 893-899.
[10]	LONG Qing, WANG Chuanyang. Thermal Degradation Behavior and Kinetics Analysis of PMMA with Different Carbon Black Contents[J]. 材料研究学报, 2022, 36(11): 837-844.
[11]	JIANG Ping, WU Lihua, LV Taiyong, Pérez-Rigueiro José, WANG Anping. Repetitive Stretching Tensile Behavior and Properties of Spider Major Ampullate Gland Silk[J]. 材料研究学报, 2022, 36(10): 747-759.
[12]	ZHANG Jun, PENG Lijing, WANG Yu, WANG Xiaoyang, WANG Nan, WANG Meihan. Effect of Al/Ti Molar Ratio on Phase Structure and Hardness of (CrTiAl)N Films[J]. 材料研究学报, 2022, 36(1): 55-61.
[13]	LI Gang, WEN Ying, YU Zhongmin, LIU Jian, XIONG Zilian. Effect of Al Content on Properties of CrFeNiAl_xSi High Entropy Alloy[J]. 材料研究学报, 2021, 35(9): 712-720.
[14]	YAN Jun, YANG Jin, WANG Tao, XU Guilong, LI Zhaohui. Preparation and Properties of Aqueous Phenolic Resin Modified by Organosilicone Oil[J]. 材料研究学报, 2021, 35(9): 651-656.
[15]	LI Ningning, CHEN Yang, CHEN Xi, YIN Liying, CHEN Guang. Preparation Method and Diffusion Mechanism of Fe-Al Coating on Q235 Low Carbon Steel by Pack Aluminizing[J]. 材料研究学报, 2021, 35(8): 572-582.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed