查询词典 chemical fiber

Poly is a kind of membrane material with excellent characteristics, in order to improve its surface hydrophilicity, so as to increase its antipollution ability, surface modification of PVDF hollow fiber porous membrane has been studied, on the bases of reviewing all kinds of modification methods, the modification method of chemical grafting onto hollow fiber membrane surface was determined.

聚偏氟乙烯是一类性能优良的膜材料，为了改善膜表面的亲水性，提高其抗污染性能，必须对膜表面进行改性，本课题在充分考察各类改性方法的基础上，采用在膜表面接枝共聚的方法对PVDF中空纤维膜表面进行改性。

The fluffy film may fall off from Cf if the pretreat method of Cf suface was not appropriate. Boron sources was ahead loaded on the surface of Cf by in situ chemical reaction to protect the fiber from corrasion of vapor such as NH_3 and increase the combination between BN film and Cf. The measured surface area of the composite fiber increased greatly to

表面的氮化硼绒膜与碳纤维的结合程度，取决于碳纤维表面预处理的方式，先期在表面通过原位化学反应引入硼源物质，形成保护膜，可以避免碳纤维在整个反应过程中受到气相侵蚀而影响氮化硼绒膜与碳纤维的结合程度，该复合材料的比表面积大幅提高，达到96m~2／g。

The industry magnesia mainly uses in making the ceramics, the enamel, the fire-proof material and so on; In the polishing compound, the adhesive, in the paint manufacture takes the stopping; In the artificial fiber, the rubber (chloroprene rubber, fluorine rubber) make the promoter and the catalyst; Makes the antacid on the medicine in the laxative, uses in treating the hyperacidity, the stomach and duodenum ulcer; May take the hard sugar purification is the decolorant in the food processing, the ice cream pH value conditioner and so on; In the construction profession, the magnesia may the manufacturing contain the magnesium special cement and the heat preservation board and so on; The biggest use is serves as the fertilizer and domestic animal's feed in the agriculture, causes the plant and in the animal metabolism process principal element, when serves as cow's feed, may prevent because to lack nervous system function being out of balance which the magnesium causes, namely the so-called forage grass convulsion gets sick; Uses in the chemical industry making the metal magnesium and the magnesium chemical, like magnesium sulfate, magnesium chloride as well as other chemicals; Moreover also uses in the water treatment, the detergent which the flue was mad uses in the glass, the dye, the electric cable, the silcon steel industry, the uranium processing, the electronics industry, the insulation material industry, as well as uses in professions and so on petroleum chemical additive, casting, phenolic plastic.

工业氧化镁主要用于制造陶瓷、搪瓷、耐火材料等；在抛光剂、黏合剂、油漆的制造中作为填充料；在人造纤维、橡胶中作促进剂和催化剂；在医药上作抗酸剂于轻泻剂，用于治疗胃酸过多、胃和十二指肠溃疡病；在食品加工上可作为砂糖精制是的脱色剂，冰淇淋的pH值调节剂等；在建筑行业中，氧化镁可生产制造含镁特种水泥和保温板等；在农业上最大用途是用作肥料和牲畜的饲料，使植物和动物代谢过程中的主要元素，用作奶牛的饲料时，可防止因缺镁而引起的神经系统机能失调，即所谓牧草性痉挛病；在化学工业中用于制造金属镁和镁化学品，如硫酸镁、氯化镁以及其他化学品；另外也用于水处理，烟道气的洗涤剂用于玻璃、染料、电缆、硅钢工业、铀加工、电子工业、绝缘材料工业，以及用于石油添加剂、铸造、酚醛塑料等行业。

The specific properties of materials, such as the palate adhesion, dynamic cruor, anti-bacterial and the degradability of lysozyme, were studied, which provide valuable data for further application. The main creative ideas are listed as follows:(1) The water-retention chitosan/poly vinyl alcohol blend fiber was obtained by coagulating in 10％ NaOH/ethanol solution, and the blend and crosslink due to GA can enhance the mechanical properties of fiber;(2) The controlled degradable chitosan/gelatin blend fiber was obtained by solution filature, and the mechanical properties were improved;(3) The N-acylchitosan with the different degree of substitution were successfully prepared, and the relationship between structure and properties was estabilished;(4) By a new solvent system of 6％ NaOH/4％ urea for cellulose, the blood anti-coagulant function films were prepared by blending cellulose with chitin;(5) In the same solvent system above mentioned, the anti-bacterial blend films based on cellulose and carboxymethyl-chitosan were prepared, and the relationship of DS and the anti-bacterial property was concluded;(6) The controlled degradable chitosan films was obtained by the chemical crosslink.

本论文的主要创新点：（1）以NaOH水溶液／无水乙醇为凝固液，采用溶液纺丝法制备出保水性壳聚糖／聚乙烯醇纤维，共混和戊二醛交联极大提高了壳聚糖纤维力学性能；（2）用壳聚糖和明胶共混，以溶液纺丝法制备出可控降解的壳聚糖／明胶纤维，并大幅度提高了壳聚糖共混纤维的干、湿态抗张强度；（3）确立了不同取代度N-酰基壳聚糖的合成方法及其膜的结构与性能的关系；（4）利用纤维素新溶剂6％NaOH／4％尿素制备出抗凝血性纤维素／甲壳素共混膜；（5）利用上述纤维素新溶剂制备出抗菌性纤维素／羧甲基壳聚糖共混膜，揭示了羧甲基壳聚糖取代度与抗菌性能的关系；（6）制备出可控降解壳聚糖交联膜。

The abelmoschus fiber with spinnability has been extracted through chemical degumming treatments, and the parameters of preacid and alkali cooking progress have been optimized. The length, fineness and breaking strength of the fiber have been also tested and evaluated.

采用化学脱胶处理秋葵纤维，对预酸和碱煮工艺中的参数进行优化设计，提取出可纺纤维，并对处理后纤维的长度、细度及断裂强度进行测试和评价。

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.

离子交换纤维的比表面大，对金属离子具有吸附选择性高、应用形式多样等特点，是近年来发展迅速的新型吸附材料[1~5]。

A new chelating fiber containing thioamide group is synthesized by cross-linking of polyacrylonitrile fiber with ethylene-dimine and following with chemical modification with sodium sulfide using DMF as solvent.

以腈纶纤维为起始原料，经乙二胺预交联后，以DMF作溶剂与硫化钠反应，合成了一种硫代酰胺功能基可达6.8mmol/g干纤维的螯合功能纤维，其对贵金属金、银离子具有良好的吸附性能。

It was showed that pectenolone and pectenoxanthin were all found in Gonads, hepatopancreas, mantle and gill, among of them, ovary, hepatopancreas and gill possessed more carotenoid than other tissues, but no carotenoids were found in the white muscles of Yesso scallops. Hepatopancreas contains a variety other carotenoids some kind of other not identified beside pectenolone and pectenoxanthin. The result also showed that the Yesso scallop with orange muscle had more the carotenoids in a variety of tissues than the common, and the female more than the male.4 Impacts of carotenoid accumulation on morphological structure and chemical composition in orange muscle of Yesso scallopThere was no difference between the orange and white muscle obserced by conventional HE staining, while musclular fiber type and matrix density in the orange muscle was different from white ones by the TEM observation of ultra-thin slices, and there were three musclular fiber types, among of them, the loose muscular fiber was orange muscle specifically.

利用HPLC法对橘红/白色闭壳肌虾夷扇贝各组织中含有的类胡萝卜素种类和含量，结果表明，虾夷扇贝在性腺、肝胰腺、外套膜、鳃丝中均含有类胡萝卜素pectenolone和pectenoxanthin，白色闭壳肌中未检测到类胡萝卜素，其中肝胰腺除上述两种类胡萝卜素外，还含有其他多种未鉴定的类胡萝卜素；在各组织中，雌性性腺、肝胰腺、鳃丝中类胡萝卜素的含量较高；橘红色闭壳肌虾夷扇贝各组织中的类胡萝卜素含量高于白色闭壳肌虾夷扇贝；雌性虾夷扇贝中的类胡萝卜素的含量高于雄性。4累积类胡萝卜素对虾夷扇贝闭壳肌的形态结构和化学成分的影响本文对橘红色闭壳肌进行了常规HE染色切片观察，并未观察到异常现象；超薄切片透射电镜观察发现橘红色闭壳肌在肌纤维类型及基质密度等方面有别于白色闭壳肌，在橘红色闭壳肌中有三种肌纤维，其中疏松型肌纤维为橘红色闭壳肌特有。

During the bleaching and dyeing process, cashmere fiber is damnified by chemical aid-agents and the workmanship used, which makes the fiber short, thick and rough, thus it affects the spinnability and weaving capability of the yarn and the handfeel of the finished products.

羊绒纤维在漂白和染色过程中，化学助剂及工艺本身对其都会造成损伤，使其长度变短，细度变粗，手感变涩，从而影响羊绒纱的可纺性、织造性能及成品手感。

Pipe flow of fiber suspensions can be found in various industrial processions, such as the production of composite materials, environmental engineering, chemical engineering, paper making, and so on. The character of fiber suspension will play an important part in the quality of the production. So, it is significant to research on pipe flow of fiber suspensions.

管道内纤维悬浮流是各种工业生产过程中广泛存在的一种流动，其在复合材料制造、环境、化工、纺织和造纸等领域都有应用，且其特性对这些领域的产品质量起着重要影响，故对管道内的纤维悬浮流的研究有着重要的意义。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。