氧化石墨烯接枝聚丙烯非织造布的制备及其抗静电性

doi:10.13475/j.fzxb.20180707306

摘要/Abstract

摘要：

为改善聚丙烯非织造布的抗静电性,以氧化石墨烯为接枝单体,冰醋酸为催化剂,通过响应面分析法优化聚丙烯非织造布接枝氧化石墨烯工艺参数。探讨了氧化石墨烯质量浓度、催化剂浓度和接枝温度对接枝率的影响,借助织物摩擦式静电测试仪、表面张力测试仪、扫描电子显微镜、傅里叶变换红外光谱仪对非织造布进行测试和表征。获得聚丙烯非织造布接枝氧化石墨烯最优工艺参数:氧化石墨烯质量浓度为17.06 g/L,冰醋酸浓度为0.031 mol/L,温度为70.60 ℃,在此条件下测得,接枝率为22.3%。结果表明:接枝后聚丙烯非织造布的摩擦带电电压为1 094 V,接触角为76.9°;接枝后的非织造布较原布粗糙,并且明显附着一层物质;接枝后的非织造布在1 621、1 385、1 117 cm^-1处出现了新的峰,证明氧化石墨烯的存在。

关键词: 响应面分析法, 氧化石墨烯, 聚丙烯非织造布, 接触角, 抗静电性

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

中图分类号:

TS174.3

苗苗, 王晓旭, 王迎, 吕丽华, 魏春艳. 氧化石墨烯接枝聚丙烯非织造布的制备及其抗静电性[J]. 纺织学报, 2019, 40(11): 125-130.

MIAO Miao, WANG Xiaoxu, WANG Ying, LÜ Lihua, WEI Chunyan. Preparation and antistatic property of graphene oxide grafted polypropylene nonwoven fabric[J]. Journal of Textile Research, 2019, 40(11): 125-130.

图/表 11

表1

表2

表3

聚丙烯接枝氧化石墨烯方差分析"

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
$X 1 2$	7.60	1	7.600	29.94	0.000 9
$X 2 2$	20.770	1	20.770	81.81	<0.000 1
$X 3 2$	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

表3

图1

图2

图3

图4

图5

图6

图7

图8

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