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抗光降解
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  photo-degradation resistance
     Research Progress in Photo-degradation Resistance and Durable Antimicrobial Property of Nano-crystalline TiO_2 Composite Fiber/Fabric
     纳米二氧化钛复合纤维织物的抗光降解及耐久抗菌研究进展
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  “抗光降解”译为未确定词的双语例句
     Under 125 W artificial ultraviolet radiation for 6 d, the degradation rate of rotenone CS was 35.74%, while the degradation rate of rotenone EC was 100%.
     经125W人工紫外光照6d,鱼藤酮微囊悬浮剂的降解率为35.74%,而鱼藤酮乳油则完全降解,鱼藤酮微囊悬浮剂抗光降解性能显著增强;
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  相似匹配句对
     Anti-H.
     H .
短句来源
     Intervention with anti-H.
     H.
短句来源
     Research Progress in Photo-degradation Resistance and Durable Antimicrobial Property of Nano-crystalline TiO_2 Composite Fiber/Fabric
     纳米二氧化钛复合纤维织物的光降解及耐久菌研究进展
短句来源
     Results showed that photodegradation of TBT was very slow.
     结果表明,光降解是微乎其微的。
短句来源
     Photodegradation of Polyketones Polymeric Materials
     聚酮类高分子材料的光降解
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Interfacial polymerization method using toluene-2,4-di-isocyanate (TDI) and ethylenedi-(amine) as capsule wall was adopted to prepare rotenone aqueous capsule suspension(CS). Three (levels) of (orthogonal) test on emulsifying agents proportion,TDI to ethylenediamine (proportion of mol), (capsule) wall to capsule nuclear, dosage of dispersant agent, pH, stirring speed of emulsifying and crosslinkage degree were designed to obtain the preparing technology parameters of rotenone CS with highest encapsulation rate...

Interfacial polymerization method using toluene-2,4-di-isocyanate (TDI) and ethylenedi-(amine) as capsule wall was adopted to prepare rotenone aqueous capsule suspension(CS). Three (levels) of (orthogonal) test on emulsifying agents proportion,TDI to ethylenediamine (proportion of mol), (capsule) wall to capsule nuclear, dosage of dispersant agent, pH, stirring speed of emulsifying and crosslinkage degree were designed to obtain the preparing technology parameters of rotenone CS with highest encapsulation rate and stable release speed. The technology parameters were emulsifier 1210-0204C 1∶2 ,TDI-ethylenediamine 2.5∶1,capsule wall-capsule muclear 1∶1,content of PVA (2.5 mg/g),pH 7.2,stirring speed 1 200 r/min,crosslinkage degree 10%.The critical (parameters) of (2.49 mg/g) (rotenone) CS such as encapsulation rates, average particle size and the thickness of wall, the stability of photo-degradation, the stability of heating and low (temperature) storage and releasing speed were (determined), and the results showed rotenone CS obtained significant photo-stability and controlling releasing efficiency. Under 125 W artificial ultraviolet radiation for 6 d, the degradation rate of rotenone CS was 35.74%, while the degradation rate of rotenone EC was 100%. The stable releasing time of (rotenone) CS was 22 d which indicates significant controlling releasing (efficiency.)

采用界面聚合法以甲苯-2,4-二异氰酸酯(toluene-2,4-diisocyanate,TDI)-乙二胺(TDI-乙二胺)为成囊单体制备鱼藤酮微囊悬浮剂,对乳化剂配比、TDI-乙二胺、囊壁囊芯、分散剂用量、反应pH值、乳化机转速、交联度等因子进行3水平正交优化试验,获得具有高成囊率和较佳恒定释放天数的鱼藤酮微囊悬浮剂制备工艺参数为:乳化剂12100204C质量比1∶2,成囊单体TDI乙二胺摩尔比2.5∶1,囊壁囊芯质量比1∶1,聚乙烯醇(PVA)在水相中的含量为2.5mg/g,pH值7.2,转速1200r/min、交联度10%。对制备的2.49mg/g鱼藤酮微囊悬浮剂的成囊率、平均粒径和囊壁厚度、光解稳定性、热贮与低温稳定性及释放速率进行测定,结果表明,以所选定技术参数制备的鱼藤酮微囊悬浮剂具有良好的光解稳定性和优异的控释作用。经125W人工紫外光照6d,鱼藤酮微囊悬浮剂的降解率为35.74%,而鱼藤酮乳油则完全降解,鱼藤酮微囊悬浮剂抗光降解性能显著增强;其恒定释放天数为22d,具有优异的控释作用。

>=The effects of anti-photochemical degradation of a series of nano and pigmental anatase and rutile titanium dioxide have been determined in the polyacrylate coatings. The process of photochemical degradation was assessed by Fourier Transform infra-red (FTIR) spectroscopy, weight loss and hydroperoxide analysis following artificial aging. Rates of photooxidative degradation were determined by measuring the formation of non-volatile carbonyl which absorbed in the infra-red region of the spectrum with maximum...

>=The effects of anti-photochemical degradation of a series of nano and pigmental anatase and rutile titanium dioxide have been determined in the polyacrylate coatings. The process of photochemical degradation was assessed by Fourier Transform infra-red (FTIR) spectroscopy, weight loss and hydroperoxide analysis following artificial aging. Rates of photooxidative degradation were determined by measuring the formation of non-volatile carbonyl which absorbed in the infra-red region of the spectrum with maximum at 1733cm-1. Results showed that anatase was a photosensitiser, which accelerated and catalysed photochemical degradation of the polyacrylate coatings, while rutile was an effective stabiliser and prevented the photochemical degradation. The photochemical degradation behaviors of the polycarylate coatings with nano titanium dioxide differed from that with pigmental titanium dioxide.

研究讨论了纳米或颜料级锐钛矿型及金红石型TiO2在聚丙烯酸酯复合涂层中的抗光降解作用.通过FTIR、失重分析以及氢过氧化物分析表征人工加速耐老化检测中复合涂层光降解变化过程.采用非挥发性物质中C=O键在1733cm-1的透过率变化描述复合涂层光降解速率.实验结果表明:锐钛矿型TiO2由于具有光催化性会加速聚丙烯酸酯复合涂层的光降解过程,使复合涂层失重加快,光氧化产物含量增大;而金红石型TiO2对聚丙烯酸酯复合涂层有良好的抗光降解作用,阻止丙烯酸酯聚合物光降解的进行.颜料级TiO2与纳米级TiO2相比呈现出不同的抗光降解作用.

 
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