铬酸引发丙烯酸酯与苎麻纤维的接枝共聚反应Ⅰ.MMA与苎麻纤维的接枝共聚反应

以铬酸为引发剂,将甲基丙烯酸甲酯(MMA)与苎麻纤维进行接枝共聚,探讨了接枝条件对接枝共聚的影响.结果表明,Cr6+引发MMA与苎麻接枝共聚的最佳条件为[Cr6+]=0.007mol@L-1,反应时间=12h,反应温度为50℃,[HNO3]=1mol@L-1,[MMA]=0.7mol@L-1,纤维素用氢氧化钠溶液和乙二胺溶胀可提高接枝率.     

苎麻雄性不育系与保持系花药发育的比较观察

 为研究苎麻雄性不育的早期表现和细胞学特征,采用常规石蜡切片,在显微镜下观察苎麻雄性不育系GS14-1及保持系GS13-X₁的雄蕊发育过程.发现保持系GS13-X₁的花药发育正常,形成正常的花粉粒;不育系GS14-1的雄性败育发生在较早阶段,多在雄花被形成后雌雄蕊原基分化期或花药形成初期发生败育,表现为雄蕊原基畸形或退化.但其败育的真正原因尚不清楚,有待进一步研究.     

麻织物染色等离子体前处理

应用等离子体对苎麻织物染色前处理，通过实验表明等离子体前处理可去除织物表面杂质，纤维表面性能发生变化，提高苎麻织物的吸湿性能和染色性能     

Effects of vapor‐phase‐formaldehyde treatments on thermal conductivity and diffusivity of ramie fibers in the range of low temperature

To understand the influence to thermal conductivity by bridging in the polymer fibers, the thermal conductivity, and thermal diffusivity of ramie fiber and those bridged by formaldehyde (HCHO) using vapor‐phase method (VP‐HCHO treatment) were investigated in the lower temperature range. The thermal conductivities of ramie fiber with and without VP‐HCHO treatments decreased with decreasing temperature. Thermal diffusivities of ramie fiber with and without VP‐HCHO treatments were almost constant in the temperature range of 250–50 K, and increased by decreasing temperature below 50 K. Thermal conductivity and thermal diffusivity of ramie fiber decreased by VP‐HCHO treatment. The crystallinities and orientation angles of ramie fibers with and without VP‐HCHO treatment were measured using solid state NMR and X‐ray diffraction. These were almost independent of VP‐HCHO treatment. Although tensile modulus decreased slightly by VP‐HCHO treatment, the decrease could not explain the decrease in thermal conductivity and diffusivity with decreasing sound velocity. The decrease of the thermal diffusivity and thermal conductivity by VP‐HCHO treatment suggested the possibility of the reduction of the mean free path of phonon by HCHO in VP‐HCHO treated ramie fiber. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 2754–2766, 2005     

The Preliminary Study on the Small-scale Test of the Microbial Quick-degumming Ramie

During the experiments with low temperature plasma treating the ramie degumming microbe, the authors found some kinds of microbe which can degum ramie in 5-6L fluid very quickly. In comparison with some standards of microbiological experiments, 5L or 6L-scale can be called the small-scale. Therefore, the authors believe that the experiments of the microbial quick-degumming ramie can be enlarged from the laboratory-scale test to be applied in the future.     

利用苎麻前处理工艺降低苎麻纺纱毛羽

通过试纺27.8tex纯麻纱,探讨和比较了前处理工艺中纤维素酶处理、碱变性、脱胶软麻油剂及其工艺等对苎麻成纱毛羽的影响,指出合理的前处理工艺是降低苎麻纺纱毛羽的有效途径.     

苎麻变性及毛/麻混纺织物染色工艺的研究

研究确定了苎麻阳离子化处理的最佳条件,并对阳离子苎麻的染色性能作了初步的探讨。结果表明,用酸性染料染阳离子苎麻能使上染率显著提高,毛/阳离子苎麻混纺织物可用一浴法染色,染色牢度令人满意。     

Comparison of Structures and Properties between Wool and Ramie Fibers Treated by Atmospheric Pressure Ar and Ar/O2 Plasma

The technique of atmospheric pressure plasma is of value in textile industry. In this paper, argon (Ar) and argon/oxygen (Ar/O2) atmospheric pressure plasma were used to treat wool and ramie fibers. The structures and properties of treated fibers were investigated by means of SEM, XPS, single fiber tensile tester and so on.The results proved that the effects of plasma treatments depended on structural characteristics of fibers to a great extent, besides conditions of plasma treatment. By atmospheric pressure plasma treatment, wool fiber had significant changes in morphology structure, surface chemical component, mechanic properties and dyeability, while ramie fiber just showed a little change. In additional, Ar/Q2 plasma showed more effective action than argon. And at the beginning of treatment, plasma brought about remarkable effects, which did not increase with prolonging of treat time.     

用计算机影像分析苎麻常压碱煮脱胶质量

运用计算机影像法，观察分析了经不同条件下碱煮后的苎麻纤维横截面形态和纤维细度，得出影像分析细度值与残胶率相互对应的结论．并探讨了碱煮后纤维之间胶质的去除程度和纤维的分散情况，以及纤维机械性能的变化．     

Research on the Loop Deformation of Flat Silk Knitted Fabric Made from Parallel Spun Silk/ramie Core Yarn

This paper analyzes the causes of loop deformation of flat silk knitted fabric made from parallel spun silk/ramie core yarn. Through the measurement and analysis on the loop deformation of various samples, it is concluded that the problem herein mentioned would be improved to a certain extent by changing the fabric density or mixknitting from yarn with different direction of twist.