Effect of ethylene vinyl acetate content on the performance of VMD using HDPE co-blending membrane

Na Tang; Xinxin Hua; Zhao Li; Lei Zhang; Jiating Wang; Jun Xiang; Penggao Cheng; Xuekui Wang

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Effect of ethylene vinyl acetate content on the performance of VMD using HDPE co-blending membrane

Separation Science and Engineering | Updated：2026-01-06

- Effect of ethylene vinyl acetate content on the performance of VMD using HDPE co-blending membrane
- Chinese Journal of Chemical Engineering Vol. 27, Issue 5, Pages: 1058-1066(2019)
- Affiliations：
  
  1. College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology,Tianjin,China,300457
  2. Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science & Technology,Tianjin,China,300457
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2019
- Accepted：
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Na Tang, Xinxin Hua, Zhao Li, Lei Zhang, Jiating Wang, Jun Xiang, Penggao Cheng, Xuekui Wang. Effect of ethylene vinyl acetate content on the performance of VMD using HDPE co-blending membrane[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1058-1066.
DOI：

Na Tang, Xinxin Hua, Zhao Li, Lei Zhang, Jiating Wang, Jun Xiang, Penggao Cheng, Xuekui Wang. Effect of ethylene vinyl acetate content on the performance of VMD using HDPE co-blending membrane[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1058-1066. DOI：

摘要

Abstract

Membranes were fabricated with high-density polyethylene (HDPE) and ethylene vinyl acetate (EVA) blend through thermally induced phase separation and were then used for vacuum membrane distillation (VMD). The membranes were supported by nonwoven polyester fabric with a special cellular structure. Different membrane samples were obtained by adjusting the polymer concentration

HDPE/EVA weight ratio

and coagulation bath temperature. The membranes were characterized by scanning electron microscopy (SEM) analysis

contact angle test

and evaluation of porosity and pore size distribution. A series of VMD tests were conducted using aqueous NaCl solution (0.5 mol·L

-1

) at a feed temperature of 65℃ and permeate side absolute pressure of 3 kPa. The membranes showed excellent performance in water permeation flux

salt rejection

and long-term stability. The HDPE/EVA co-blending membranes exhibited the largest permeation flux of 23.87 kg·m

-2

·h

-1

and benign salt rejection of ≥ 99.9%.

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