苎麻、亚麻地杂草化学控害技术研究

种植苎麻、亚麻是我区实施农业产业化结构调整的重大举措，近三年来发展迅猛。但是，杂草危害是目前困扰其生产发展的严重技术问题。2001年以来我们对苎麻、亚麻地进行了杂草种类及危害的调查，同时对采用化学方法拉制杂草危害进行了专项研究，选择目前主要推广的5种化学除草剂，掌握在苗期施用控制其危害，苎麻苗床除草效果达88．47—91.97％，亚麻苗期达82．81—83．15％，控害效果良好。特别是5％金草克EC和5％精克草能EC在使用成本和效果上都值得在生产上推广应用。     

亚麻织物阻燃性能的研究

选用了FR-01、FR-02、FR-06、FQ-007四种阻燃剂对亚麻织物进行阻燃处理，采用垂直燃烧法测试织物的阻燃性能，分析不同整理剂浓度下织物极限氧指数的变化，并对阻燃处理的织物进行力学性能及面料柔软性分析．结果表明，经阻燃剂处理织物的阻燃性能得到很好的改善，极限氧指数得到提高，其中经FQ-007处理的织物阻燃效果最好；但经阻燃剂处理后的织物的拉伸性能有所下降，面料的柔软性略有降低．     

Preparation of FeS/iron oxide composite and flax stem‐based porous carbon and its Cr(VI) removal ability

Using flax stem and ferrous sulfate, a composite porous carbon material was prepared by means of high‐temperature roasting and a one‐step process in a muffle furnace. The samples were characterized using X‐Ray diffraction (XRD) and Scanning electron microscopy (SEM), and the effects of ferrous sulfate concentration, carbonization temperature, and pH values of Cr(VI) aqueous solution on the removal performance of Cr(VI) were studied. XRD and SEM analysis showed that the prepared samples were amorphous porous carbon loaded with FeS/Fe₂O₃/Fe₃O₄. High FeSO₄ impregnation concentration, high carbonization temperature, and a low pH value of Cr(VI) aqueous solution were beneficial for Cr(VI) removal. When pH = 2, the amount of Cr(VI) removal was 99.93 mg/g by the sample obtained from 1 g flax powder impregnated in 4.5 mmol FeSO₄/40 mL H₂O solution and calcined for 2 hr at 800°C.     

朱元璋“夜陷麻湖”考

清初谷应泰撰《明史纪事本末》载朱元璋云游淮西时曾"夜陷麻湖",但"麻湖"具体所指语焉不详。通过有关史实及其他佐证,可以认定此"麻湖"非某一具体地名,应为皖西境内的沤麻之湖。     

溶出亚麻纤维中体型高分子木素方法的探讨

一般柔软剂对纤维的整理是有限的。文中提出了亚麻纤维柔软化的化学方法，以生产出用于针织的纯亚麻纱，而不失去亚麻的外观和风格，从而为开发纯亚麻针织产品开辟了新的前景。     

Study on Dyeing Behavior of Modified Flax

The study of dyeability of the modified flax that uses dyeuptake to reflect its medifying effect is reported in this paper. The optimal technological condition is that the concentration of the modifying agent is 4 g/l, and NaOH is 6 g/l at liquor ratio of 1：30 for 60 min. at 85℃. Dyeabillity include uptake rate and color fastness. Dye-uptake of the modified flax is twice more than that of the unmodified. And their color fastness doesn‘t fall and some of them raise 0.5 - 1 level.     

Influence of production progress on the heavy metal content in flax fibers

The aim of this work was to determine the content of selected heavy metals in flax materials depending on the stage of fiber manufacturing. Non-treated natural fiber composition was compared with that of fibers processed. Changes in the composition of yarn before and after the following scutching, hackling, washing, and bleaching were also investigated. Analysis of heavy metals was performed applying inductively coupled plasma mass spectrometry. Flax material was mineralized in closed Teflon vials with a mixture of concentrated nitric acid which were then placed in a microwave oven system. Analytical quality of the obtained results was checked by the determination of elements in the Certificate Reference Materials of IAEA-V-10. The acquired results proved that the content of metals in flax clearly varies depending on the treatment process applied (bleaching, washing, coloration). Significant differences were also connected with the dye used. Presented at the 35th International Conference of the Slovak Society of Chemical Engineering, Tatranské Matliare, 26–30 May 2008.     

亚麻粗纱漂白稳定剂WD—1的研制

本文以ＷＤ双氧水稳定剂为基础,筛选各种助剂,复配通适应亚麻粗纱漂白的稳定剂ＷＤ－１,使ＷＤ在复合后使双氧水稳定性提高,改善亚麻粗纱的漂白效果及质量。     

RESEARCH ON STRUCTURE AND PROPERTY OF OIL FLAX FIBER

In this paper investigations of the macromolecular chain structure, crystalline andmorphological structure of oil flax of San Xi and flax of East-North by means of such as elec-tron microscopy, X-ray diffraction, density and birefringence etc. is presented. The physical andmechanical properties of fibers are also measured. The results show that there is a little differencebetween the macrostructure of two kinds of flax fibers. The count which is an average linear den-sity of single fiber from different parts (root, middle, top of the stem), of the oil flax and that ofthe flax from East-North is 3.28 dtex and 3.29 dtex respectively. The modulus, breaking tenacityand elongation of oil flax are 1835.63 cN / tex, 61.08 cN / tex and 3.62% respectively. Com-paring this data with the data of flax, we find that there exists no appreciable difference.     

A numeric model for the kinetics of water vapor sorption on cellulosic reinforcement fibers

Some natural fibers like flax, hemp and others show excellent mechanical properties that make them a promising choice for the reinforcement of polymers. The increasing research on natural fiber reinforced composites has still left important questions open, mainly concerning the fiber–matrix interface. Compared to the well optimized glass fibers, cellulose fibers show very different interaction with matrix polymers and adhesion promoters. The hydrophilic cellulose structure allows for the penetration of a considerable amount of water into the amorphous regions of the fibers, eventually exceeding 20% by mass, depending on fiber type, preparation and environmental humidity. Even embedded in totally apolar polymers the cellulose partly retains its ability for water sorption, which results in unfavorable effects, such as dimensional changes, decrease in strength, roughening of the surface, etc. The interaction of differently prepared fibers with water vapor and the effect of surface treatment is investigated by measuring the dynamics of water vapor sorption. An exponential model is used for the numerical evaluation of the sorption and desorption kinetics. The model not only allows for an excellent fit of the experimental isotherms, but without any further assumptions it immediately gives evidence of the existence of two distinct mechanisms for the exchange of water vapor, related to different sorption sites. These specific mechanisms are represented by individual sorption–desorption isotherms as components of the total isotherms. The model provides a clearer differentiation of the effects of fiber preparation and modification with respect to interfacial interactions.