Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (06): 21-26.doi: 10.13475/j.fzxb.20190800406

• Fiber Materials • Previous Articles     Next Articles

Preparation of fibrous membrane by blending polymethacrylate with polyacrylate and its oil/water separation property

HAO Zhifen1, XU Naiku2(), FENG Yan1, DUAN Mengxin1, XIAO Changfa2   

  1. 1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
    2. School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
  • Received:2019-08-01 Revised:2020-03-12 Online:2020-06-15 Published:2020-06-28
  • Contact: XU Naiku E-mail:xunaiku@tjpu.edu.cn

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Abstract:

In order to realize the efficient separation of oil and water in water pollution system, poly (butyl acrylate-co-hydroxyethyl methacrylate) and poly (butyl methacrylate-co-hydroxyethyl methacrylate) were synthesized by solution polymerization. The blended solution with the two polymers was used for electrospinning to prepare micro-structurally adjustable fibrous membrane material to separate different oil/water mixtures, and its separation capacity for different oil/water mixtures was explored. The results demonstrate that the fibrous membrane obtained from blending the two copolymer solutions in the volume ratio of 3∶7 shows significant separation capability for diesel/water mixture and sunflower oil/water mixture. When it is repeatedly used for 5 times and 7 times to separate the two oil/water mixtures, the separation time are lower than 390 s and 110 s, respectively. Tetrahydrofuran (THF) was introduced into the above-mentioned blended solution to adjust continually the microstructure of the electrospun fibrous membrane, and the obtained fibrous membrane is proven to separate highly viscous emulsified oil from water quickly.

Key words: poly (butyl methacrylate-co-hydroxyethyl methacrylate), poly (butyl acrylate-co-hydroxyethyl methacrylate), solution polymerization, electrospinning, oil/water separation

CLC Number: 

  • TQ316

Fig.1

Schematic diagram of oil-water separation device"

Fig.2

FESEM images of fibrous membranes electrospun from different blend solutions with different volumes ratios(×1 000)"

Tab.1

Physical properties of electrospun fibrous membranes with different volumes ratios"

样品
编号		 接触角/
(°)		 孔隙
率/%		 纤维平均
直径/μm		 纤维直径
标准偏差
1# 138.5 54.82 3.13 0.32
2# 124.5 47.95 3.68 0.31
3# 122.5 39.26 4.29 0.72
4# 126.0 37.14 5.03 0.56

Fig.3

FESEM images of fibrous membranes electrospun from solutions containing different amount of THF(×1 000)"

Tab.2

Physical properties of electrospun fibrous membranes prepared with different amount of THF"

样品
编号		 接触角/
(°)		 孔隙
率/%		 纤维平均
直径/μm		 纤维直径
标准偏差
5# 126.0 37.16 2.03 0.23
6# 129.5 58.30 1.56 0.19
7# 126.5 72.03 1.24 0.24

Fig.4

Separation result of diesel/water by 1#, 2# and 3# fibrous membranes"

Fig.5

Separation result of sunflower seed oil/water by 2# and 3# fibrous membranes"

Fig.6

Separation result of emulsified oil/water by 5#, 6# and 7# fibrous membranes"

Fig.7

Repeatedly oil-water separation capability of fiber membrane of 2# and 3#. (a) Separation time for diesel/water mixture; (b) Oil separation amount for diesel/water mixture; (c) Separation time for sunflower seed oil/water mixture; (d) Oil separation amount for sunflower seed oil/water mixture"

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