塑料科技2025，Vol.53Issue(2)：43-46,4.DOI:10.15925/j.cnki.issn1005-3360.2025.02.008
辐射法制备高亲水性聚对苯二甲酸乙二醇酯微粉
Preparation of Highly Hydrophilic Polyethylene Terephthalate Micropowder via Radiation Grafting Method
郭丰 1邢哲 2万文 3吴国忠2
作者信息
- 1. 上海大学化学系,上海 200444||中国科学院上海应用物理研究所,上海 201800
- 2. 中国科学院上海应用物理研究所,上海 201800
- 3. 上海大学化学系,上海 200444
- 折叠
摘要
Abstract
Hydrophilic monomers,acrylic acid(AA)and 2-acrylamido-2-methylpropanesulfonic acid(AMPS),were successfully grafted onto the surface of polyethylene terephthalate(PET)micropowder via a radiation-induced grafting method to produce highly hydrophilic PET micropowder.The semi-dry solid mixture of PET micropowder(particle size 20 μm)and AA/AMPS was subjected to γ-irradiation under a nitrogen atmosphere with an absorbed dose of 100 kGy.The results showed that the dispersibility and hydrophilicity of the modified PET micropowder increased with the grafting rate.When the mass fraction of AA/AMPS monomers was 20%and the mass ratio of AA to AMPS was 2∶1,the grafting rate reached 15.2%,the modified PET exhibited good dispersion stability in aqueous solution,and the water contact angle decreased from 125.4° to 60.3°.Fourier transform infrared spectroscopy(FTIR),scanning electron microscopy(SEM),and thermogravimetric analysis(TG)were used to confirm the successful grafting of AA/AMPS onto the surface of PET micropowder.关键词
聚对苯二甲酸乙二醇酯/丙烯酸/2-丙烯酰胺-2-甲基丙磺酸/亲水性/共辐射接枝Key words
Polyethylene terephthalate/Acrylic acid/2-acrylamide-2-methylpropanesulfonic acid/Hydrophilic acid/Radiation grafting分类
化学化工引用本文复制引用
郭丰,邢哲,万文,吴国忠..辐射法制备高亲水性聚对苯二甲酸乙二醇酯微粉[J].塑料科技,2025,53(2):43-46,4.
