Significant Improvement in Thermal and UV Resistances of UHMWPE Fabric through in Situ Formation of Polysiloxane-TiO2 Hybrid Layers
文献类型：期刊论文
| 作者 | Hu, JT; Gao, QH; Xu, L; Zhang, MX; Xing, Z; Guo, XJ; Zhang, K; Wu, GZ |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2016 |
| 卷号 | 8期号:35页码:23311-23320 |
| 关键词 | radiation-induced graft polymerization sol-gel process titanium oxide UHMWPE fabric UV resistance |
| ISSN号 | 1944-8244 |
| 通讯作者 | Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, 2019 Jialuo Rd, Shanghai 201800, Peoples R China. |
| 英文摘要 | Anatase nanocrystalline titanium dioxide coatings were produced on ultrahigh molecular weight polyethylene (UHMWPE) fabric by radiation-induced graft polymerization of gamma-methacryloxypropyl trimethoxysilane (MAPS) and subsequent cohydrolysis of the graft chains (PMAPS) with tetrabutyl titanate, followed by boiling water treatment for 180 min. The resulting material was coded as UHMWPE-g-PMAPS/TiO2 and characterized by attenuated total reflection infrared spectrometry, differential scanning calorimetry, X-ray diffraction, thermal gravimetry, and ultraviolet absorption spectroscopy, among others. The predominant form of TiO2 in the thin film was anatase. The coating layer was composed of two sublayers: an inner part consisting of an organic inorganic hybrid layer to prevent photocatalytic degradation of the matrix by TiO2 film, and an outer part consisting of anatase nanocrystalline TiO2 capable of UV absorption. This UHMWPE-g-PMAPS/TiO2 composite exhibited much better thermal resistance than conventional UHMWPE fabric, as reflected by the higher melting point, decreased maximum degradation rate, and higher char yield at 700 degrees C. Compared with UHMWPE fabric, UHMWPE-g-PMAPS/TiO2 exhibited significantly enhanced UV absorption and excellent duration of UV illumination. Specifically, the UV absorption intensity was 2.4-fold higher than that of UHMWPE fabric; the retention of the break strength of UHMWPE-g-PMAPS/TiO2 reached 92.3% after UV irradiation. This work provides an approach for addressing the issue of self-degradation of TiO2-coated polymeric materials due to the inherent photoactivity of TiO2. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382902800065 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26621]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Hu, JT,Gao, QH,Xu, L,et al. Significant Improvement in Thermal and UV Resistances of UHMWPE Fabric through in Situ Formation of Polysiloxane-TiO2 Hybrid Layers[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(35):23311-23320. |
| APA | Hu, JT.,Gao, QH.,Xu, L.,Zhang, MX.,Xing, Z.,...&Wu, GZ.(2016).Significant Improvement in Thermal and UV Resistances of UHMWPE Fabric through in Situ Formation of Polysiloxane-TiO2 Hybrid Layers.ACS APPLIED MATERIALS & INTERFACES,8(35),23311-23320. |
| MLA | Hu, JT,et al."Significant Improvement in Thermal and UV Resistances of UHMWPE Fabric through in Situ Formation of Polysiloxane-TiO2 Hybrid Layers".ACS APPLIED MATERIALS & INTERFACES 8.35(2016):23311-23320. |
入库方式： OAI收割
来源：上海应用物理研究所
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