Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (02): 89-97.doi: 10.13475/j.fzxb.20210601309

• Textile Engineering • Previous Articles     Next Articles

Preparation of CuO/polypropylene/ethylene-octene copolymer composite melt-blown nonwovens and their oil absorption properties

ZHAO Jiaming1,2, SUN Hui1,2(), YU Bin1,2, YANG Xiaodong1,2   

  1. 1. College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Zhejiang Provincial Key Laboratory of Preparation Technology of Industrial Textile Materials, Hangzhou, Zhejiang 310018, China
  • Received:2021-06-03 Revised:2021-11-22 Online:2022-02-15 Published:2022-03-15
  • Contact: SUN Hui E-mail:sunhui@zstu.edu.cn

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Abstract:

In order to efficiently and economically deal with the pollution caused by oil leakage, the melt-blown nonwoven materials (MB) was prepared by the blending of polypropylene (PP) and ethylene-octene copolymer (POE). The surface of the composite melt-blown nonwoven material was loaded with nano-copper oxide (CuO) for hydrophobic modification. The morphology, structure, water contact angle, oil absorption and mechanical properties of the nonwovens before and after modification were tested. The results show that the deposition of nano CuO causes the crystallinity of CuO/PP/POE composites to decrease, but no significant change in the melting and crystallization temperatures. In addition the deposition of nano CuO resulted in about 1°decrease in the water contact angle, and the hydrophilicity increases slightly. Compared with the pure PP nonwovens, the oil absorption rate of the composite melt-blown nonwovens loaded with nano-CuO is improved. The oil absorption rate of melt-blown nonwovens with POE content of 15% is up to 9.22 g/g for machine oil and 9.4 g/g for silicone oil, and the longitudinal fracture strength is increased, but the elongation at break is decreased.

Key words: polypropylene, ethylene-octene copolymer, melt-blown nonwoven material, copper oxide, oil absorption efficiency, oil water treatment

CLC Number: 

  • TS176

Tab.1

Melt-blown nonwoven material composition table"

样品
编号		 PP质量
分数/%		 POE质量
分数/%		 CuO占总质量
分数/%
1# 100 0
2# 90 10
3# 85 15
4# 80 20
5# 90 10 0.125
6# 85 15 0.125
7# 80 20 0.125

Tab.2

Melt-blown process parameters"

机头
温度/
℃		 螺杆
温度/
℃		 物料
温度/
℃		 热风
温度/
℃		 气道
压力/
MPa		 熔喷
压力/
MPa		 接收
距离/
cm		 平台
速度/
(mm·s-1)
185 180~200 180 280 0.2 0.4 20 0.5

Fig.1

SEM images of pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens"

Tab.3

Elements content of CuO/PP/POE composite melt-blown nonwovens"

样品编号 元素质量分数/%
C O Cu
5# 64.00 10.83 25.17
6# 71.90 8.23 19.86
7# 72.93 8.33 18.74

Fig.2

Pore size distribution of pure PP and PP/POE melt-blown nonwovens"

Tab.4

Average diameters of pure PP and PP/POE melt-blown nonwovensμm"

样品编号 平均直径
1# 5.86±0.13
2# 3.15±0.09
3# 3.06±0.12
4# 2.65±0.09

Fig.3

XRD patterns of pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens"

Tab.5

Thermal properties of pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens"

样品编号 Tc/℃ Tm/℃ Xcd/% Xcx/%
1# 111.98 156.45 41.99 43.16
2# 119.28 158.8 51.63 46.65
3# 124.24 159.63 45.44 55.88
4# 118.75 158.28 49.68 25.78
5# 118.14 157.19 41.93 44.38
6# 123.85 158.74 41.78 50.56
7# 119.85 157.9 43.11 23.51

Fig.4

Second heating(a) and first cooling(b) curves of pure PP, PP/POE, CuO/PP/POE melt-blown nonwovens"

Tab.6

Water contact angle of pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens(°)"

样品编号 水接触角
1# 143.2±0.34
2# 145.2±0.13
3# 146.0±0.17
4# 145.3±0.21
5# 144.4±0.21
6# 145.3±0.19
7# 143.8±0.37

Fig.5

Repeated oil absorption curves of silicon oil(a) and machine oil(b) for pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens"

Fig.6

Oil absorption mechanism of CuO/PP/POE melt-blown nonwovens"

Fig.7

Stress-strain curves of pure PP, PP/POE and CuO/PP/POE melt-blown nonwovens"

Tab.7

Mechanical property data of pure PP, PP/POE and CuO/PP/POE melt-blown nonwoven materials"

样品 断裂强力/N 断裂伸长率/%
1# 5.86±0.27 20.89±3.33
2# 8.86±0.89 24.83±5.48
3# 9.30±0.86 26.56±5.75
4# 6.17±0.54 29.22±3.64
5# 10.09±1.99 13.33±2.01
6# 10.19±0.37 18.57±4.66
7# 7.45±0.38 25.40±3.08
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