2015/12/07 15:51
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采用马丁代尔耐磨试验机定量评价面料耐磨性能的方法
摘要:面料耐磨性评价方法分为主观方法和客观方法,通过主观方法定性评级误差较大,客观定量评价中的面料磨损率指标虽然准确,但是由于磨损率中未能考虑面料表面已被破坏纤维和纱线所产生的毛羽和毛球,对结果产生一些影响。本文利用标准集团(香港)有限公司供应的G235马丁代尔耐磨试验机测试毛呢面料的耐磨性能,介绍了通过烧毛法将面料表面毛羽和毛球去除后,用实际磨损率来评价面料耐磨性能的方法,并简要的描述了实验过程,介绍了设备使用特点,可以为科研单位、检测机构和相关企业评价产品的性能提供参考。
关键词:耐磨性能评价;定量法;马丁代尔耐磨试验机;实际磨损率
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NanoBrook产品应用-12-ZetaPALS
文献名: Structural, morphological and optical properties of Bi NPs obtained by laser ablation and their selective detection of L-cysteine 作者: Ramon Gabriel Teixeira Rosaa, Celso de Araujo Duartea , Wido Herwig Schreinera, Ney Pereira Mattoso Filhoa, Arandi Ginane Bezerra Jr.b, Andersson Barisonc, Fernanda Maria Marins Ocamposc a Departamento de Física, Universidade Federal do Paraná Centro Politécnico, CP 19044, 81531-990 Curitiba (PR), Brazil b Departamento Acadêmico de Física, Universidade Tecnológica Federal do Paraná, 80230-901 Curitiba (PR), Brazil c Departamento de Química, Universidade Federal do Paraná Centro Politécnico, CP 19081, 81531-990 Curitiba (PR), Brazil 摘要:In the present work we show the results of the investigation of the properties of bismuth nanoparticles (NPs) obtained by the laser ablation in water. The samples were characterized by various techniques: UV/vis spectroscopy, dynamic light scattering, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, nuclear magnetic resonance and zeta potential. The NPs were metallic and surface oxidated, exhibiting absorption peak at 257 nm due to the surface plasmon resonance. The interaction between the NPs and various amino acids was studied and revealed a selective sensibility to cysteine on a range of concentration from 80 to 720 μM, which we attribute to a dimerization of cysteine to cystine probably complexed to the nanoparticle surface by electrostatic interactions, leading to the modification of the NP absorption spectrum. 关键词:Bismuth; Nanoparticles; Laser ablation; Cysteine
2015/04/16
城市污水中TOC与COD的关系
TOC与COD的测定方法不同。测定COD是采用强氧化剂和加热回流的方法,只能将水中的有机物部分氧化(氧化率较低),并且测定时间较长,即使目前一些快速的
环保
2017/11/16
中药提取类产品解决方案
从中药中提取分离化合物,第一步需要将中药材中的成分用有机溶剂提取出来,包括常规的有机溶剂浸泡,超声提取,超临界提取和加速溶剂萃取(Aseeker-600型加速溶剂萃取仪)等,得到一份总提物。
制药/生物制药
2021/01/04
肿瘤特异性抗体功能分析
肿瘤特异性抗体功能分析包含很多方面: T细胞功能活化及增殖、细胞因子分析、抗体依赖的细胞介导的细胞毒性作用(antibody-dependent cell-mediated cytotoxicity; ADCC)、抗体介导的补体依赖的细胞毒性(complement dependent cytotoxicity; CDC)、巨噬细胞抗体依赖性的细胞吞噬作用(Antibody-Dependent Cellular Phagocytosis; ADCP)等。
制药/生物制药
2021/04/28