Influence of high-voltage electrostatic field on formaldehyde diffusion within cellulose Iβ

XU Bo; CHEN Zhenqian

doi:10.11949/j.issn.0438-1157.20160609

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Influence of high-voltage electrostatic field on formaldehyde diffusion within cellulose Iβ

更新时间：2025-12-10

- Influence of high-voltage electrostatic field on formaldehyde diffusion within cellulose Iβ
- CIESC Journal Issue S1, Pages: 57-62(2016)
- 作者机构：
  
  1. 东南大学,江苏,南京,210096
  2. 江苏省太阳能技术重点实验室(东南大学),江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160609
  CLC： Q028.8
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
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XU Bo, CHEN Zhenqian. Influence of high-voltage electrostatic field on formaldehyde diffusion within cellulose Iβ[J]. CIESC Journal, 2016, (S1): 57-62.
DOI：

XU Bo, CHEN Zhenqian. Influence of high-voltage electrostatic field on formaldehyde diffusion within cellulose Iβ[J]. CIESC Journal, 2016, (S1): 57-62. DOI： 10.11949/j.issn.0438-1157.20160609.

摘要

采用分子动力学的方法，进行了在不同高压电场作用下，甲醛分子在纤维素Iβ中扩散运动的模拟。结果表明：当电场强度从0增大到109 V·m-1时，扩散系数由5.64×10-10 m2·s-1增大到7.768×10-10 m2·s-1，增大了约38%，说明高压静电场加强了甲醛分子在纤维素Iβ中的扩散运动，提高了扩散系数；电场强度能有限增强纤维素链的整体移动，并不会破坏纤维素的稳定性；高压静电场的施加，改变了甲醛分子与纤维素Iβ相互作用，提高了静电作用、范德华作用和总相互作用。

Abstract

Under the effect of different high-voltage electric fields

the simulation of formaldehyde diffusion in cellulose Iβ was studied by molecular dynamics. Results showed that when electric intensity increased from 0 to 109 V·m-1

the diffusion coefficient increased from 5.64×10-10 m2·s-1 to 7.768×10-10 m2·s-1

an increase of nearly 38%. It showed that high-voltage electrostatic field strengthened the formaldehyde diffusion in cellulose Iβ and increased the diffusion coefficient. Electric intensity can strengthen the movement of cellulose chain. However

it will not undermine the stability of cellulose. The application of high-voltage electrostatic field altered the interaction between formaldehyde and cellulose Iβ

improving the electrostatic effect

van der Waals interaction and total interaction.

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