Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (11): 125-130.doi: 10.13475/j.fzxb.20180707306

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and antistatic property of graphene oxide grafted polypropylene nonwoven fabric

MIAO Miao, WANG Xiaoxu, WANG Ying, LÜ Lihua, WEI Chunyan()   

  1. College of Textile and Materials Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
  • Received:2018-07-26 Revised:2019-06-28 Online:2019-11-15 Published:2019-11-26
  • Contact: WEI Chunyan E-mail:weicy@dlpu.edu.cn

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Abstract:

In order to improve the antistatic property of polypropylene nonwoven fabric, the process parameters of grafting graphene oxide on polypropylene nonwoven fabric were optimized by response surface methodology with graphene oxide as grafting monomer and glacial acetic acid as catalyst. The influences of graphene oxide concentration, catalyst concentration and grafting temperature on the grafting rate were investigated. Fabric friction electrostatic tester, surface tension tester, scanning electron microscope and Fourier transform infrared spectroscopy were adopted to test and characterize the nonwoven fabric. The optimal process parameters are: graphene oxide concentration of 17.06 g/L, glacial acetic acid concentration of 0.031 mol/L and temperature of 70.60 ℃, at this time the graft ratio is 22.3%. The results show that the friction voltage of polypropylene nonwoven fabric after grafting is 1 094 V, and compared with the original fabric, the contact angle of polypropylene nonwoven fabric after grafting is 76.9°. The grafted nonwoven fabric is rougher than the original fabric and obviously adhered with a layer of material; and the grafted nonwoven fabric shows new peaks at 1 621, 1 385 and 1 117 cm-1, proving the existence of graphene oxide.

Key words: response surface analysis, graphene oxide, polypropylene nonwoven fabric, contact angle, antistatic property

CLC Number: 

  • TS174.3

Tab.1

Experimental factors and levels of encoding table of polypropylene grafted graphene oxide"

因素 编码
记号		 基准
水平(0)		 变化
间距		 上水平
(+1)		 下水平
(-1)
A X1 17 1 18 16
B X2 0.03 0.01 0.04 0.02
C X3 70 20 90 50

Tab.2

Experimental design scheme and results of polypropylene grafted graphene oxide"

实验序号 X1 X2 X3 接枝率Y/%
1 0 0 0 22.35
2 1 -1 0 19.53
3 1 1 0 20.67
4 -1 1 0 18.24
5 0 0 0 21.78
6 -1 -1 0 16.14
7 0 0 0 22.59
8 1 0 -1 18.45
9 -1 0 -1 17.32
10 0 -1 1 16.98
11 0 1 -1 18.24
12 0 0 0 22.30
13 -1 0 1 17.63
14 1 0 1 19.32
15 0 0 0 22.03
16 0 -1 -1 15.39
17 0 1 1 18.60

Tab.3

Variance analysis of polypropylene grafted graphene oxide"

来源 平方和 自由度 均值 F值 P值
模型 83.690 9 9.300 36.62 <0.000 1
X1 9.330 1 9.330 36.74 0.000 5
X2 7.430 1 7.430 29.26 0.001 0
X3 1.220 1 1.220 4.82 0.064 1
X1X2 0.230 1 0.230 0.91 0.372 6
X1X3 0.078 1 0.078 0.31 0.595 8
X2X3 0.380 1 0.380 1.49 0.261 8
X12 7.60 1 7.600 29.94 0.000 9
X22 20.770 1 20.770 81.81 <0.000 1
X32 30.380 1 30.380 119.64 <0.000 1
残差 1.780 7 0.250
失拟项 1.390 3 0.460 4.75 0.083 1
误差 0.390 4 0.097
总和 85.470 16
判定系数 0.979 2
修正判定系数 0.952 5

Fig.1

Contour (a) and response surface (b) graph of graphene oxide and catalyst"

Fig.2

Contour (a) and response surface (b) graph of graphene oxide and temperature"

Fig.3

Contour (a) and response surface (b) graph of catalyst and temperature"

Fig.4

Influence of content of GO on grafting rate"

Fig.5

Influence of content of catalyst on grafting rate"

Fig.6

Influence of temperature on grafting rate"

Fig.7

SEM image of PP nonwoven fabric before (a) and after(b) grafting GO(×1 000)"

Fig.8

FT-IR spectra of PP and PP-g-GO non-woven"

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