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Materials 2018, 11(5), 727; https://doi.org/10.3390/ma11050727

Facile Fabrication of a [email protected] Acid-Kaolin Coating on Lignocellulose Composites with Superhydrophobicity and Flame Retardancy

1
School of Engineering, Zhejiang A&F University, Hangzhou 311300, China
2
Key Laboratory of Wood Science and Technology, Hangzhou 311300, China
*
Authors to whom correspondence should be addressed.
Received: 12 March 2018 / Revised: 23 April 2018 / Accepted: 27 April 2018 / Published: 3 May 2018
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Abstract

The disadvantages such as swelling after absorbing water and flammability restrict the widespread applications of lignocellulose composites (LC). Herein, a facile and effective method to fabricate superhydrophobic surfaces with flame retardancy on LC has been investigated by coating polydimethylsiloxane (PDMS) and stearic acid (STA) modified kaolin (KL) particles. The as-prepared coatings on the LC exhibited a good repellency to water (a contact angle = 156°). Owing to the excellent flame retardancy of kaolin particles, the LC coated with [email protected] displayed a good flame retardancy during limiting oxygen index and cone calorimeter tests. After the coating treatment, the limiting oxygen index value of the LC increased to 41.0. Cone calorimetry results indicated that the ignition time of the LC coated with [email protected] increased by 40 s compared with that of uncoated LC. Moreover, the peak heat release rate (PHRR) and the total heat release (THR) of LC coated with [email protected] reduced by 18.7% and 19.2% compared with those of uncoated LC, respectively. This LC coating with improved water repellency and flame retardancy can be considered as a potential alternative to protect the lignocellulose composite. View Full-Text
Keywords: lignocellulose composites; kaolin; PDMS; superhydrophobic; flame retardancy lignocellulose composites; kaolin; PDMS; superhydrophobic; flame retardancy
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Wang, Z.; Shen, X.; Qian, T.; Wang, J.; Sun, Q.; Jin, C. Facile Fabrication of a [email protected] Acid-Kaolin Coating on Lignocellulose Composites with Superhydrophobicity and Flame Retardancy. Materials 2018, 11, 727.

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