Microencapsulated phase change material via Pickering emulsion based on xylan nanocrystal for thermoregulating application

Ziwen Lv; Jun Rao; Baozhong Lü; Gegu Chen; Xiang Hao; Ying Guan; Jing Bian; Feng Peng

doi:10.1016/j.carbpol.2022.120407

Microencapsulated phase change material via Pickering emulsion based on xylan nanocrystal for thermoregulating application

Carbohydr Polym. 2023 Feb 15:302:120407. doi: 10.1016/j.carbpol.2022.120407. Epub 2022 Nov 28.

Authors

Ziwen Lv¹, Jun Rao¹, Baozhong Lü², Gegu Chen³, Xiang Hao⁴, Ying Guan⁵, Jing Bian⁶, Feng Peng⁷

Affiliations

¹ Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China.
² Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. Electronic address: lvbaozhong@bjfu.edu.cn.
³ Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. Electronic address: chengegu@bjfu.edu.cn.
⁴ Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. Electronic address: xianghao@bjfu.edu.cn.
⁵ Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China. Electronic address: xiaomi1231@163.com.
⁶ Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. Electronic address: bianjing31@bjfu.edu.cn.
⁷ Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China. Electronic address: fengpeng@bjfu.edu.cn.

PMID: 36604078
DOI: 10.1016/j.carbpol.2022.120407

Abstract

Phase change materials (PCM) are promising for thermal regulation and energy storage, but suffer from the deformation and leakage of capsules. Herein, inspired by cellulose nanocrystal (CNC), xylan nanocrystal (XNC) with a dimension of 25-60 nm was successfully prepared through oxalic acid hydrolysis of high-crystalline xylan as raw materials via a top-down approach. With the introduction of hydrophobic groups, compared to XNC, succinylated XNC showed more remarkable emulsifying property over 7 days of storage at room temperature. Microencapsulated PCM composite consisting of sodium alginate (SA) as "matrix" and succinylated xylan nanocrystal (XNC) stabilized paraffin-based Pickering capsule (PCM beads) as "core" was facilely fabricated. PCM composite with the latent heat of 105.59 J·g^-1 showed excellent thermoregulating performance. Our work suggests a new pathway toward sustainability of hemicelluloses in the application of food emulsion and thermal energy management.

Keywords: Phase change material; Pickering emulsion; Sodium alginate; Succinylated xylan nanocrystal; Xylan; Xylan nanocrystal.

MeSH terms

Cellulose / chemistry
Emulsions / chemistry
Hot Temperature
Nanoparticles* / chemistry
Xylans*

Substances

Xylans
Emulsions
Cellulose