|
|||||
|
|
| 紫外接枝丙烯酸对PVDF膜表面改性的研究 | |
| 引用本文： | 梁基照,张玉坤,沈鹏,张秋吉.紫外接枝丙烯酸对PVDF膜表面改性的研究[J].塑料科技,2013,41(6):30-33. |
| 作者姓名： | 梁基照 张玉坤 沈鹏 张秋吉 |
| 作者单位： | 1. 华南理工大学机械与汽车工程学院,广东广州,510640 2. 广州中国科学院先进技术研究所水科学研究中心,广东广州,511458 3. 深圳大学化学与化工学院,广东深圳,518060 |
| 摘 要： | 以二苯甲酮为光引发剂,通过紫外辐照将亲水性单体丙烯酸接枝于聚偏氟乙烯(PVDF)膜的表面。考察了光引发剂浓度和辐照时间对接枝率的影响,并利用衰减全反射光谱和扫描电子显微镜对接枝后PVDF膜表面的化学组成和微观形貌进行了表征。结果表明:随着光引发剂浓度的增大,丙烯酸的接枝率先增大后减小。通过纯水接触角和吸水率研究了接枝后的PVDF膜的亲水性,发现接枝后的PVDF膜的亲水性得到明显改善。 |
| 关 键 词： | 聚偏氟乙烯 紫外接枝 丙烯酸 接枝率 亲水性 |
Study on Surface Modification of PVDF Membranes with UV Grafted Acrylic Acid |
|
| Liang Jizhao,Zhang Yukun,Shen Peng,Zhang Qiuji.Study on Surface Modification of PVDF Membranes with UV Grafted Acrylic Acid[J].Plastics Science and Technology,2013,41(6):30-33. | |
| Authors: | Liang Jizhao Zhang Yukun Shen Peng Zhang Qiuji |
| Affiliation: | 1 School of Mechanical & Automotive Engineering,South China University of Technology,Guangzhou 510640,China 2 Water Science Research Center,Guangzhou Institutes of Advanced Technology,CAS,Guangzhou 511458,China 3 College of Chemistry and Chemical Engineering,Shenzhen University,Shenzhen 511458,China |
| Abstract: | Acrylic acid was grafted onto the surface of PVDF membrane by UV irradiation grafting polymerization with benzophenone as photo-initiator.The principal factors influenced the grating degree were discussed,such as the concentration of photo-initiator,irradiation time.The chemical structure and morphological changes of the original and modified PVDF membrane were characterized by use of attenuated total reflection-Fourier transform infrared spectroscopy and scanning electron microscopy.The results show that: acrylic acid ss successfully grafted onto the surface of PVDF membrane,with the increase of the concentration of photo-initiator,the degree of grafting increases firstly,and then decreases.In addition,the static contact angle and water absorption ratio were used to study the hydrophilic property of modified PVDF membrane,the results show that: the hydrophilic property of PVDF membranes improves significantly. |
| Keywords: | Poly(vinylidene fluoride) UV grafting Acrylic acid Degree of grafting Hydrophilic |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |