Significant Improvement in Thermal and UV Resistances of UHMWPE Fabric through in Situ Formation of Polysiloxane-TiO2 Hybrid Layers
Hu, JT; Gao, QH; Xu, L; Zhang, MX; Xing, Z; Guo, XJ; Zhang, K; Wu, GZ; 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.
2016
发表期刊ACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
卷号8期号:35页码:23311-23320
文章类型期刊论文
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.
关键词Radiation-induced Graft Polymerization Sol-gel Process Titanium Oxide Uhmwpe Fabric Uv Resistance
DOI10.1021/acsami.6b04914
收录类别SCI
语种英语
WOS记录号WOS:000382902800065
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26621
专题中科院上海应用物理研究所2011-2018年
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.
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.
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