Self-healing waterborne polyurethane coatings with high transparence and haze via cellulose nanocrystal stabilized linseed oil Pickering emulsion

被引：47

作者：

Liu, Nana ^{[1
,2
,3
]}

Wan, Bolin ^{[1
,2
,3
]}

Zhang, Zhen ^{[1
,2
,3
]}

Fang, Xiong ^{[1
,2
,3
]}

Lin, Xiaoming ^{[1
,2
,3
]}

Wang, Yilong ^{[4
]}

Tang, Juntao ^{[5
]}

Bai, Xiaoxia ^{[6
]}

Li, Yingzhan ^{[7
]}

Yao, Yao ^{[8
]}

Zhou, Guofu ^{[1
,2
,3
]}

机构：

[1] South China Normal Univ, Natl Ctr Int Res Green Optoelect, SCNU TUE Joint Lab Device Integrated Respons Mat D, Guangzhou 510006, Peoples R China

[2] South China Normal Univ, South China Acad Adv Optoelect, Guangdong Prov Key Lab Opt Informat Mat & Technol, Guangzhou 510006, Peoples R China

[3] South China Normal Univ, Inst Elect Paper Displays, South China Acad Adv Optoelect, Guangzhou 510006, Peoples R China

[4] ScienceK Ltd, Huzhou 313000, Peoples R China

[5] Cent South Univ, Coll Chem & Chem Engn, Hunan Key Lab Micro & Nano Mat Interface Sci, Changsha 410083, Peoples R China

[6] Xidian Univ, Sch Adv Mat & Nanotechnol, Xian 710126, Peoples R China

[7] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Peoples R China

[8] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 611731, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 235卷

基金：

中国国家自然科学基金;

关键词：

Self -healing coating; Pickering emulsion; Cellulose nanocrystals; Linseed oil; Waterborne polyurethane; CORROSION PROTECTION; MICROCAPSULES; MICROENCAPSULATION; SHELL;

D O I：

10.1016/j.ijbiomac.2023.123830

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Protection coatings with self-healing ability can significantly enhance their anti-corrosion properties and service life. In this study, self-healing waterborne polyurethane (WPU) coatings with high transparence and haze were facile fabricated via cellulose nanocrystal (CNC) stabilized linseed oil (LO) Pickering emulsion. Sustainable CNCs displayed outstanding emulsifying ability and stability to stabilize LO Pickering emulsion. The size of LO Pick-ering emulsion droplets decreases with the CNC concentration, while the emulsion fraction and surface coverage by CNCs increase with CNC concentration, leading to a more stable Pickering emulsion. The self-healing rates of WPU coatings at varied time, temperature, CNC and catalyst concentration were investigated. Higher temper-ature, larger emulsion droplets, and with driers employed as catalysts generally lead to faster self-healing rate. The WPU self-healing coatings displayed much better abrasion resistance and mechanical properties than pristine WPU due to the incorporation of CNCs. Moreover, the WPU self-healing coatings show a high transparence and haze due to light scattering, and their applications as coatings of lamp covers and glass to achieve uniform light distribution and privacy protection with high light transmission were further demonstrated.

引用

页数：10

共 62 条

[1] Bentonite and double hydroxides as emulsifying agents [J].

Abend, S ;

Lagaly, G .

CLAY MINERALS, 2001, 36 (04) :557-570

[2] Pickering Emulsions and Antibubbles Stabilized by PLA/PLGA Nanoparticles [J].

Araya-Hermosilla, Rodrigo ;

Derville, Flora ;

Cohn-Inostroza, Nicolas ;

Picchioni, Francesco ;

Pescarmona, Paolo P. ;

Poortinga, Albert .

LANGMUIR, 2022, 38 (01) :182-190

[3] Evaluation of corrosion performance of a self-healing epoxy-based coating containing linseed oil-filled microcapsules via electrochemical impedance spectroscopy [J].

Behzadnasab, M. ;

Mirabedini, S. M. ;

Esfandeh, M. ;

Farnood, R. R. .

PROGRESS IN ORGANIC COATINGS, 2017, 105 :212-224

[4] Microcapsules filled with reactive solutions for self-healing materials [J].

Blaiszik, B. J. ;

Caruso, M. M. ;

McIlroy, D. A. ;

Moore, J. S. ;

White, S. R. ;

Sottos, N. R. .

POLYMER, 2009, 50 (04) :990-997

[5] Synthesis of Linseed Oil-Based Waterborne Urethane Oil Wood Coatings [J].

Chang, Chia-Wei ;

Chang, Jing-Ping ;

Lu, Kun-Tsung .

POLYMERS, 2018, 10 (11)

[6] Emulsions stabilized with solid nanoparticles: Pickering emulsions [J].

Chevalier, Yves ;

Bolzinger, Marie-Alexandrine .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2013, 439 :23-34

[7] Encapsulation of aliphatic amines into nanoparticles for self-healing corrosion protection of steel sheets [J].

Choi, Hana ;

Kim, Kyoo Young ;

Park, Jong Myung .

PROGRESS IN ORGANIC COATINGS, 2013, 76 (10) :1316-1324

[8] Recent advances on cellulose nanocrystals for Pickering emulsions: Development and challenge [J].

Dai, Hongjie ;

Wu, Jihong ;

Zhang, Huan ;

Chen, Yuan ;

Ma, Liang ;

Huang, Huihua ;

Huang, Yue ;

Zhang, Yuhao .

TRENDS IN FOOD SCIENCE & TECHNOLOGY, 2020, 102 :16-29

[9] From Waste to Valuable Resource: Lignin as a Sustainable Anti-Corrosion Coating [J].

Dastpak, Arman ;

Yliniemi, Kirsi ;

Monteiro, Mariana Cecilio de Oliveira ;

Hoehn, Sarah ;

Virtanen, Sannakaisa ;

Lundstrom, Mari ;

Wilson, Benjamin P. .

COATINGS, 2018, 8 (12)

[10] Synthesis and mechanical properties of dopamine modified titanium dioxide/waterborne polyurethane composites [J].

Deng, Feifei ;

Zhang, Yuliang ;

Li, Xia ;

Liu, Yawei ;

Shi, Zhiqing ;

Wang, Yinghan .

POLYMER COMPOSITES, 2019, 40 (01) :328-336

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