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plasma treatment     
相关语句
  等离子体处理
     After plasma treatment cosθ of several standard liquids on PTFE and FEP increased. The linear relationship between γ_L (1+cosθ) / (γ_L~d)1/2 and (γ_L~P/γ_L~d)1/2 was verified.
     等离子体处理后,标准液体在 FEP和 PTFE上的cosθ增大,而且γ_L(1+cosθ)/(γ_L~d)~(1/2)与(γ_L~P)~(1/2)/(γ_L~d)~(1/2)之间成直线关系。
短句来源
     Results:After low temperature O_2 plasma treatment, the atomic ratio of C ∶O changed from 1∶0.20 to 1∶0.29 and the percent of C-O in C-C increased from 25.08% to 34.01%;
     结果:等离子体处理后,树脂表面碳氧原子比例从 1∶0. 20升至 1∶0. 29,与氧原子连接的C形成的C O结构,在整个C C和C O结构中,其百分比从25. 1%升至 34. 01%;
短句来源
     Improvement of SiO_2 Film Electret Stability by Plasma Treatment
     等离子体处理提高SiO_2薄膜驻极体的稳定性
短句来源
     It was shown that AA grafting yield onto PTFE film surface was 131.7 μg/cm~2,after 100 W and 100 s of plasma treatment under 20 Pa,and 50 h of graft polymerization at 70℃ with 26% of AA volume fraction.
     研究结果表明:在放电压力20 Pa、放电功率100 W、放电时间100 s的等离子体处理条件和接枝温度70℃、接枝时间50 h、单体体积分数26%的接枝条件下,PTFE膜表面丙烯酸接枝量为131.7μg/cm2;
短句来源
     The optimum conditions were defined: plasma treatment time(4 min,) discharge voltage(13 kV,) frequency 3 kHz,grafting at (60 ℃.)
     确定了最佳工艺条件:等离子体处理时间为4 min,处理频率为3 kHz,处理电压为13 kV,接枝温度为60℃。
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  等离子处理
     Furthermore, the experiments indicate that optimum conditions for the oxygen plasma treatment on tussah fiber are that the discharge time is 15 minutes, the discharge power is 15 W, the minimum pressure is 5 Pa, and the working pressure is 30 Pa.
     并且确定了氧等离子处理柞丝织物的放电时间15分钟、放电功率15W、底压为5Pa、工作压力为30Pa为最佳等离子体处理接枝条件。
短句来源
     By Ar plasma treatment, the photo-currents of sputtered and coated TiO2 electrodes increased by 80% and 60%, respectively.
     结果表明经过Ar射频等离子处理后,溅射法和涂敷法制备的TiO2薄膜组装的光电池的光电流分别提高了约80%和60%。
短句来源
     However, the oxygen plasma treatment can improve the oxygen content and the ratio of Mn~(4+)/Mn~(3+) of the film effectively.
     LCMO薄膜的温度—电阻关系强烈依赖于薄膜的氧含量和Mn~(4+)/Mn~(3+)比。 在温度范围220K-290K内,未经氧等离子处理的薄膜没有Tp出现,其Tp小于220K。
短句来源
     In this research, the NH_3/O_2 plasma and plasma grafting after Ar plasma treatment were used to modify its surface in order to improve its hydrophilicity, and discussed the affection on the amino density of material surface, the grafting density of PVP, the surface form before and after treatment, the change of contact-angle by different treatment conditions and make research on the cell affinity of modified materials.
     本文采用NH_3、O_2等离子法直接作用和Ar等离子处理接枝聚乙烯吡咯烷酮(PVP)的方法对其进行处理,以改善其表面亲水性,探讨了不同处理条件对材料表面氨基密度,PVP的接枝密度,处理前后材料的表面形态,表面接触角的变化的影响,并对改性后的材料的细胞亲和性进行了研究。
短句来源
     SEM and x—ray diffraction analyses showed the cold'plasma treatment was an effective method of improving the properties of carbon fibre and multibenzene composite materials.
     扫描电镜(SEM)和X—射线衍射分析表明,冷等离子处理是改善和提高碳纤维与多并苯复合材料性能的有效方法。
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  等离子体改性
     Study on the Photoelectrical Property of TiO_2 Thin Films by Ar Plasma Treatment
     TiO_2纳米晶的等离子体改性及光电转换性能的研究
短句来源
     This article reviews the progress in this field,including the methods such as surfactant adsorption on membrane surface,plasma treatment,radiation modification,polymer alloy and sruface reaction etc.
     本文从这点出发 ,结合自身的工作 ,总结了近年高分子超滤膜改性方面的研究进展 ,包括表面活性剂在膜表面的吸附改性、等离子体改性、辐照改性、高分子合金和表面化学反应等几种改性方法
短句来源
     STUDY OF THE COLD PLASMA TREATMENT ON POLYPROPYLENE SURFACE
     聚丙烯表面冷等离子体改性的研究
短句来源
     Comparison of Oxygen and Nitrogen Plasma Treatment Clean Process of Fine Polyester
     氧和氮等离子体改性细旦涤纶的清洁工艺比较
短句来源
     Results: Sulfonic groups were chemically attached to the membrane surfaces after SO 2 plasma treatment, and the hydrophilicity of the membranes was remarkably improved.
     结果 :用SO2 等离子体改性后 ,膜表面接枝上磺酸基团 ,亲水性明显增强 ;
短句来源
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  等离子体表面处理
     To modify the biocompatibility of polyethylene terephthalate (PET), the mechanisms of plasma polymerization, plasma treatment, and plasma-indeuced graft polymerization were summarized.
     本文针对改性聚对苯二甲酸乙二醇脂(polyethylene terephthalate,PET)的生物相容性,总结了等离子体聚合、等离子体表面处理和等离子体诱发接枝聚合改性作用机制。
     The stronger combination of fiber and matrix after plasma treatment was discovered.
     然后着重研究了增强纤维的低温等离子体表面处理对增强纤维与基体间界面剪切强度的影响。
短句来源
     INFLUENCE OF PLASMA TREATMENT ON SURFACE ENERGY OF UHMW-PE FIBRES
     等离子体表面处理对超高分子量聚乙烯纤维表面能的影响
短句来源
     A computer control system of plasma treatment based on field bus is designed.
     设计了一种基于现场总线的等离子体表面处理工艺计算机监控系统 .
短句来源
     The stronger combination of fiber and matrix after plasma treatment was discovered.
     然后着重研究了增强纤维的低温等离子体表面处理对增强纤维与基体间界面剪切强度的影响。 证明了纤维的等离子体处理对纤维与基体的界面结合的提高作用;
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      plasma treatment
    Based on the characterization results, plasma treatment endowed the samples with smaller particle size, higher dispersion of active components, and an enrichment of active components on the surface as well.
          
    Modification of acidity of Mo-Fe/HZSM-5 zeolite via argon plasma treatment
          
    The NH3-TPD characterization was conducted to confirm that the acidity of Mo-Fe/HZSM-5 zeolite could be selectively modified via the glow discharge plasma treatment.
          
    The stable hydrophilization of the surface of Teflon AF films resulted from plasma treatment was revealed.
          
    Radiofrequency-discharge plasma treatment of heavy ion-irradiated poly(ethylene terephthalate) films
          
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    Deep point defect center levels (E_v+0.14eV), (E_v+0.19eV), (E_v+0.24 eV), havebeen observed using DLTS in silicon annealed by pulse dye laser,pulse ruby laser andCW Nd: YAG laser.A variety of techniques including hydrogen plasma treatment,heattreatment in high purity argon,hydrogen ambient and CW CO_2 laser annealing have beenstudied in order to passivate/annihilate these deep point defect centers.It has beenshown that CW CO_2 laser annealing is more suitable for the purpose of passivating/annihilating...

    Deep point defect center levels (E_v+0.14eV), (E_v+0.19eV), (E_v+0.24 eV), havebeen observed using DLTS in silicon annealed by pulse dye laser,pulse ruby laser andCW Nd: YAG laser.A variety of techniques including hydrogen plasma treatment,heattreatment in high purity argon,hydrogen ambient and CW CO_2 laser annealing have beenstudied in order to passivate/annihilate these deep point defect centers.It has beenshown that CW CO_2 laser annealing is more suitable for the purpose of passivating/annihilating deep point defect centers produced by various kinds of laser annealing.Themechanism of passivating/annihilating deep point defect centers has also been discussed.

    利用DLTS证实,经染料脉冲激光退火,红宝石脉冲激光退火和连续Nd:YAG激光退火的硅样品,存在深中心缺陷能级:(Ev + 0.14eV),(Ev + 0.19eV),(Ev + 0.24eV).研究了各种不同的技术以便钝化/消除这些深中心缺陷,其中包括高纯氢、氩气氛下退火,氢等离子体退火和连续CO_2激光退火.实验证明,采用连续CO_2激光退火是较合适的.关于这些深中心缺陷的钝化/消除机理,也进行了讨论.

    This paper deals with the modification of polyester fiber by low temperature plasma treatment. An increase by 50--100% in the moisture regain of the treated polyester fiber was found. The moisture regain declined a little after the fiber was laid aside for a period of time. Based on the analysis and testing of the treated sample by means of XPS, laser-Raman spectra and electron microscope, the mechanism of the modification of moisture permeability of the fiber was examined, some dipole groups being induced...

    This paper deals with the modification of polyester fiber by low temperature plasma treatment. An increase by 50--100% in the moisture regain of the treated polyester fiber was found. The moisture regain declined a little after the fiber was laid aside for a period of time. Based on the analysis and testing of the treated sample by means of XPS, laser-Raman spectra and electron microscope, the mechanism of the modification of moisture permeability of the fiber was examined, some dipole groups being induced and the crystallinity of the fiber being changed during the period of plasma bombarding. The strength of the treated fiber remained unchanged though the surface looked a bit rough.

    等离子体处理是使化学纤维变性的有效手段之一。本文表明,经低温等离子体处理过的涤纶纤维,其回潮率约增加50%—100%。放置一段时间后略有衰退。通过X光电子能谱以及激光喇曼光谱等对处理后试样的分析测试,探讨了吸湿性改变的机理,指出有极性基团出现,同时伴有结晶度的改变。处理后纤维强度基本不变。

    The surface of carbon liners prepared from polyacrylonrtmle (PAN) preeusor is continuously treated by means of cold plasma. The interlaminar shear strength of carbon fibers reinforced epoxy composite is increased from about 58.8MPa to about 98MPa. The results are caused by four aspects:(1) The reactivity is increased between fiber surface and matrix due to the incrementof amount of -COOH, and on fiber surface.2) The surface constituent is changed by plasma trertment to improve the wetting properties of fiber...

    The surface of carbon liners prepared from polyacrylonrtmle (PAN) preeusor is continuously treated by means of cold plasma. The interlaminar shear strength of carbon fibers reinforced epoxy composite is increased from about 58.8MPa to about 98MPa. The results are caused by four aspects:(1) The reactivity is increased between fiber surface and matrix due to the incrementof amount of -COOH, and on fiber surface.2) The surface constituent is changed by plasma trertment to improve the wetting properties of fiber surface. The contact angle θbetween water and carbon fiber is decreased from 75° to 61°.(3) Electronic micrographs of the surface of earbon fiber show that the surface striation and surface roughness are changed fo increment after fiber surface etched by plasma. It increases adhesive interface and effect of mechanical interlocking.(4) The strength of carbon fiber is decreased very little(about 1.5%) by this treating method.The analysis of the fracture morphology by the use of scanning electron microscopy(SEM) indicates that dcbonding and fiber pulling-out between fiber and matrix don't appear in the carbon (?) ubfirced composite. All of these results show that adhesion between fiber and matrix is very strong. In additon,the plasma treatment technology is very simple and the cost is very low. This treatment process does not produce any environmental pollution and has a more brilliant foreground for engineering applications.

    冷等离子体(O_2)连续处理碳纤维表面,能使复合材料层间剪切强度从600公斤/厘米~2左右提高到1000公斤/厘米~2左右,所以能得到比较好的处理效果是由四方面因素促成的:其一表面的—COOH、—C—OH和>C=0等含氧基团量的增加,提高了与基体反应能力;其二表面组份变化,改善了表面的浸润性,使对水的接触角由75℃降为61℃;其三碳纤维表面经等离子体刻蚀之后,沟槽加深,粗糙度变大,扩大了粘结界面和机械联结效应;其四这种处理方法纤维本身强度损失较少。由材料破坏断口电镜分析表明,纤维与基体之间没有脱粘和拔出现象产生,证明纤维与基体间界面粘结是良好的。另外此种处理方法工艺简单,费用低,处理过程没有公害物产生,故工业应用前景较大。

     
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