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degradation behavior     
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  降解行为
     The Degradation Behavior of Sb_2O_3/Polypropylene Modified by Acrylic Acid
     反应性单体丙烯酸改性Sb_2O_3填充PP的热降解行为
短句来源
     Studies of Polylactide/Hydroxylapatite Composites Ⅲ. The in vitro Degradation Behavior of Poly(D,L-lactide)/Hydroxylapatite Composites
     聚乳酸/羟基磷灰石复合材料的研究 Ⅲ.聚(D,L-乳酸)/羟基磷灰石复合材料的体外降解行为
短句来源
     The Degradation Behavior in vitro of Poly(D,L-lactide)/Hydroxyapatite Composites
     聚(D,L-乳酸)/羟基磷灰石复合材料的体外降解行为
短句来源
     STUDY ON THE THERMAL DEGRADATION BEHAVIOR OF PPS/PES
     PPS/PES共混物热降解行为的研究
短句来源
     Thermal degradation behavior of polymethylmethacrylate(PMMA) and PMMA/montmorillonite nano-composites(PMNC) in N2-ambient was investigated by using TG and DTA.
     采用TG、DTA研究聚甲基丙烯酸甲酯(PMMA)及聚甲基丙烯酸甲酯/蒙脱土纳米复合材料(PMNC)在N2气氛条件下的热降解行为.
短句来源
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  热降解行为
     The Degradation Behavior of Sb_2O_3/Polypropylene Modified by Acrylic Acid
     反应性单体丙烯酸改性Sb_2O_3填充PP的热降解行为
短句来源
     STUDY ON THE THERMAL DEGRADATION BEHAVIOR OF PPS/PES
     PPS/PES共混物热降解行为的研究
短句来源
     Thermal degradation behavior of polymethylmethacrylate(PMMA) and PMMA/montmorillonite nano-composites(PMNC) in N2-ambient was investigated by using TG and DTA.
     采用TG、DTA研究聚甲基丙烯酸甲酯(PMMA)及聚甲基丙烯酸甲酯/蒙脱土纳米复合材料(PMNC)在N2气氛条件下的热降解行为.
短句来源
     The results indicated that the thermal stability and the temperature of degradation of PP significantly increase by addition of Sb_2O_3. not only addition of acrylic acid improved the inteffacial interaction between the Sb_2O_3 and PP, but also almost unchanged the degradation behavior of Sb_2O_3/polypropylene
     结果表明Sb_2O_3的加入明显提高了PP的热分解温度和热稳定性。 反应性单体丙烯酸改性可改善Sb_2O_3与PP的界面相互作用和填料的分散性,而对Sb_2O_3的热降解行为无大的影响。
短句来源
     Thermal Degradation Behavior and Kinetics Parameters of High Performance Fibres
     高性能纤维的热降解行为及动力学参数比较
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  降解特性
     Study on in vitro degradation behavior of C/PLA composite
     C/PLA复合材料的体外降解特性研究
短句来源
     The Mechanical Properties and Degradation Behavior in vitro of PLLA/PDLLA Blends
     PLLA/PDLLA共混物的力学性能及体外降解特性研究
短句来源
     In vitro degradation behavior of C/PLA composite has been investigated.
     对C/PLA复合材料的体外降解特性进行了研究。
短句来源
     Then we comprehensively evaluate the biocompativity, mechanical properties and degradation behavior of the composites materials.
     通过实验对复合材料的生物相容性、力学性能和降解特性进行了综合评价。
短句来源
  降解特性的
     INFLUENCE OF INTERFACIAL CONDITION ONIN VITRO DEGRADATION BEHAVIOR OFC/PLA COMPOSITES
     界面状态对C/PLA复合材料降解特性的影响
短句来源
     Study on the Degradation Behavior of Polyethylene Blended Ferrite and Starch
     淀粉与铁盐对聚乙烯降解特性的影响研究
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  degradation behavior
In this work, CL measurements were carried out for different automotive coatings to follow their degradation behavior during artificial weathering.
      
Therefore, CL measurements were applied to different automotive coatings to evaluate their degradation behavior during artificial weathering.
      
The effect of particle size distribution on the degradation behavior of plasma sprayed CoNi- and CoCrAlY coatings during isothermal oxidation was investigated, in terms of the oxygen content, porosity, surface roughness, and oxide scale formation.
      
Degradation behavior of Ni3Al plasma-sprayed boiler tube steels in an energy generation system
      
Influence of arsenic overpressure on Light-Output and degradation behavior of GaAsP: Se Led's
      
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The physical properties of ultrahigh molecular weight of polyethylene (UMWPE) obtained from highly active polymerization of ethylene have heen studied-with various instrumental methods.The morphology of initial polymer was observed by scanning electron microscope.The transmitting electron micrograph shows morphology of supermolecular fibrillar fringe of polymer.The melting and cooling crystallization processes of initial (nascent) polyethylene powder of various molecular weight were studied by the aid of polarimetric...

The physical properties of ultrahigh molecular weight of polyethylene (UMWPE) obtained from highly active polymerization of ethylene have heen studied-with various instrumental methods.The morphology of initial polymer was observed by scanning electron microscope.The transmitting electron micrograph shows morphology of supermolecular fibrillar fringe of polymer.The melting and cooling crystallization processes of initial (nascent) polyethylene powder of various molecular weight were studied by the aid of polarimetric microscope with the result that the spherulite size increases with molecular weight.The crystallinity of initial polyethylene powder or its annealed heat molded specimen increases with increasing molecular weight (by X-ray diffraction,DTA,inverse gas chromatographic and density determination),while the crystallite size decreases with it.The crystalling melting temperature Tm (determined by DTA and inverse gas chromatographic method) of UMWPE initial powder is about 8-12'C higher than that of PE with ordinary molecr.lar weight (MW=10×104).The thermomechenical curves show that above Tm the UMWPE molded specimens present a nonflowing rubery elastic state untill the higher viscoflowing temperature is reached.The oxidation degradation behavior has been investigated with DTA and TG methods.Besides,the extinguished impact strength and anti-abrassion properties of UMWPE specimens have been determined.The scanning electron micrographs for the textures of the cross-section cleavage surfaces of impacted molded specimen of polyethylene with Mw=10x104 and Mw=126×104 were interpreted from the viewpoint of molecular chain aggregation.

本工作系研究以高效催化聚合获得的超高分子量聚乙烯的结构和性能。用扫描电子显微镜观察了高效催化剂及初生聚乙烯的形态。透射电子显微镜观察了初生聚乙烯粉未,发现毛遂边缘的超分子原纤维状织态结构。用偏光显微镜观察了不同分子量聚乙烯粉末的熔融和冷却结晶过程,生成的球晶随分子量增大而增大。用X-射线衍射、差热分析、倒换气相色谱测定了初生聚乙烯的结晶度随分子量而增大;用X-射线衍射、差热分析及密度梯度法测定经退火或热压制的聚乙烯样品的结晶度均随分子量增大而下降。X-射线衍射测定其晶粒尺寸亦随分子量增大而减小。差热分析和倒换气相色谱测定超高分子量聚乙烯粉末的结晶熔点温度(T_m)要比普通分子量聚乙烯高8—12℃。不同分子量聚乙烯的热形变曲线表明,超高分子量聚乙烯在熔融温度后出现明显的橡胶态。此外,还用差热与热重分析研究了超高分子量聚乙烯的热老化行为。测定了超高分子量聚乙烯的优异抗冲强度和沙浆磨耗量。并用扫描电镜对比观察了常规分子量和超高分子量聚乙烯试样的冲击断面的织态结构。

An analytical method and the degradation behavior in the ecological environment of paddy field for the residues of Bentazon (48% aqueous formulationt is reported. The degradation half lives of bentazon in rice grain, soil and water were calculated. If the herbicide was sprayed once during the three-leaf stage of herbs 60 days before harvest with the application volumn of 300ml/mu deluted to 50 liters by water, the final residues of bentazon and its metabolites in rice grain would be bellow the minimun...

An analytical method and the degradation behavior in the ecological environment of paddy field for the residues of Bentazon (48% aqueous formulationt is reported. The degradation half lives of bentazon in rice grain, soil and water were calculated. If the herbicide was sprayed once during the three-leaf stage of herbs 60 days before harvest with the application volumn of 300ml/mu deluted to 50 liters by water, the final residues of bentazon and its metabolites in rice grain would be bellow the minimun detected limits (0.02 mg/kg).

报道了48%排草丹水剂在水稻上的残留分析方法及稻田生态环境中残留消解动态试验研究,计算出排草丹在稻株、土壤和水中降解半衰期。每亩施用300ml,兑水50kg,在杂草2~3叶期喷施一次,距收期60天,稻谷中排草丹及其代谢产物的最终残留量低于最低检出浓度0.02mg/kg。

the thermal degradation behavior of polyphenylene sulfide (PPS)/polyethersulfone(PES)blends has been studied by TG & DTG, and the effect of the thermal degradation atmospheres and blend composition on the thermal degradation behavior of PPS/PES blends is observed. It showed that PPS/PES blends degraded differently in an air atmosphere or in a nitrogen atmosphere and that the thermal stability increased with the increasement of PES content. In the air atmosphere, there is an intramolecular cross-linking...

the thermal degradation behavior of polyphenylene sulfide (PPS)/polyethersulfone(PES)blends has been studied by TG & DTG, and the effect of the thermal degradation atmospheres and blend composition on the thermal degradation behavior of PPS/PES blends is observed. It showed that PPS/PES blends degraded differently in an air atmosphere or in a nitrogen atmosphere and that the thermal stability increased with the increasement of PES content. In the air atmosphere, there is an intramolecular cross-linking and a cross-linking between molecules in PPS/PES blends.

本文运用热重分析(TG)、差示热重分析(DTG)方法研究了聚苯硫醚/聚醚砜共混物的热降解行为,考察了热裂解气氛、共混物组成对共混物热降解行为的影响。结果表明:在空气或氮气气氛下。共混物具有不同的热降解行为,共混物的热稳定性随着聚醚矾的含量增加而提高。在空气气氛下,不但存在聚苯硫醚和聚醚砜分子内的交联,而且可能存在分子间的交联。

 
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