纤维截面

凝固浴条件对湿纺PAN初生纤维截面形状和皮芯结构的影响

Effect of Coagulation Bath Conditions on Cross Section and Skin-Core Structure of PAN Nascent Fibers during Wet-Spinning

DMSO湿法PAN纤维截面形状形成条件的研究

Study on the forming condition of cross section of polyacrylonitnle ( PAN ) fiber during DMSO wet spinning

结果表明：喷丝速度对PAN纤维截面的规整性、表面形貌、异形度、声速取向和致密性等均会产生影响。

The results showed that the extrusion speed had effects on the irregularity of cross section , surface morphology , profile degree , sonic orientation and compactness of PAN fiber .

纤维截面的检测表明：PAN纤维在温度为215℃至270℃的空气中氧化52分钟后，纤维具有黑色鞘和棕色芯的二重结构；

The examination of fiber cross-sections showed that after oxidized in air for 52 min. from 215 ℃ to 270 ℃, PAN fiber presents a two & zone structure with black sheath and brown core .

扫描电镜测试表明，HEC纤维截面形态近似圆形，表面有沟槽，内部结构均匀致密。

It is observed from scanning electron microscopy that HEC fiber had uniformly dense internal structure with approximately circular cross-section and grooves on surface .

利用扫描电镜（SEM）观察，发现AN-g-Casein纤维截面形成了皮芯型结构；

Cross section and surface section of AN - g - Casein fiber were observed by SEM . Skin and core layers are formed in the cross section of the fiber .

通过对纤维截面形貌的扫描电镜分析，发现表面张力对三叶形PCS纤维异形截面的形成有着较大的影响，它和粘滞阻力相互竞争的共同作用决定了三叶形PCS纤维异形度的大小。

Through research by SEM , we discovered that the surface tension influences greatly on the formation of the profile-degree of trilobal section PCS fiber , the competitive action between it and the agglutination resistance decides the size of the profile-degree of trilobal section PCS fiber .

异形纤维截面测量中的边缘检测算法；

Algorithm study of edge detection in profiled fibers cross-section measurement ;

裂片型复合超细纤维截面形状与剥离性

Geometry of cross section and stripping of split composite superfine fiber

树脂包埋技术在纤维截面切片中的应用

Application of resin embedding technology on cross-sectional slice of fibers

介绍纺织纤维截面树脂切片的制作过程；

The slicing procedure for textile fibers is described .

剥离型复合纤维截面形状对质量的影响

Influence of dividable composite fiber with cross section shape on quality of composite fiber

通过对原有的算法的改进，取得了较为满意的效果，并从中提取了反映纤维截面差别的常规特征指标。

Conventional parameters which are used to discriminate the fiber cross-segment have been extracted from the treated image .

利用该模型研究了纤维截面形状和排列方式对金属基复合材料宏观弹性性能的影响。

Influence of fiber cross section shape and packing arrangement on macroscopic elastic properties are analyzed with the model .

比较了纤维截面形状的变化对织物吸湿快干能力的影响。

And the influences of cross section changing to the absorbing / releasing ability of polyester fabric were also compared .

该模型能够考虑纤维截面影响，所得理论值与实验结果吻合较好。

The model considers the effect of fiber section shape and makes theoretical values in good agreement with experimental results .

由此对纤维截面几何特征分析，得出主要特征参数为纤维当量截面积、异形系数和中腔纹。

Cross-sectional area , profiled coefficient and lumen line of single fibres , have been obtained according to fibre geometrical analysis .

将计算机模拟所得的十字形纤维截面形状与纺丝实验结果对比，基本符合，验证了数值模拟的正确性。

Comparing numerical simulations of the cross section shape and fiber spinning experiment results , it proves the exactness of simulation .

在人眼视觉机理的基础上，提出光斑扩散方法，用来探测图像中各个纤维截面并得到其轮廓线。

Based on mechanism of human sight , the facula diffusion method is advanced to detect individual cross-sections in the image and takes out the contours of them .

结果表明：随纺丝速度增加，中空度降低；纺丝熔体温度控制也是保证纤维截面的关键参数。

The result shows that the hollow degree is reduced as the spinning speed increasing and the spinning temperature has significant effect to the fiber 's cross section .

纤维截面扁平化可以克服圆形截面纤维的某些缺点，赋予产品优良的性能和用途。

The fiber of flat cross section can overcome some disadvantages of the fiber of circular cross section , and provide the excellent performance and usage to the products .

这也表明所选模型及参数的合理性。对高速纺丝的不对称冷却工艺过程的数学模拟表明：高速纺丝过程中存在明显的结构不对称性，其原因在于纤维截面上温度分布。

The simulation results of asymmetry cooling process in high-speed spinning also show : there is obvious structure asymmetry affected by the imbalance of temperature on the section of spun .

阐述了剥离型复合纤维截面形状变化对纤维质量的影响，以及生产过程中影响纤维截面形状变异的主要因素和控制办法。

In this paper , the importance of quality for bi-con and the chief effect were analyzed , and expounded the method of rating and control quality for composite fiber .

本文通过计算结果比较，分析了复合材料体分比、纤维截面形状、纤维与基体的相对导热系数对复合材料整体导热性能的影响。

The effects of volume fraction , cross section shape of fibers and the relative thermal conductivity of fiber and matrix on thermal conductivity of composites are analyzed in this thesis .

结果表明：在卷绕速度为3000m/min、泵供量为0.033g/s·孔时，纤维截面的温度最高点与最低点差值的最大值为8.87℃，导致的应力最大差值为116.7Ncm~2；

It is shown that the maxim temperature difference at cross section is 8.78 ℃, when the take-up speed is 3000m / min and the pump capacity is 0.033g / s · h.

该模型考虑了纤维截面的纵横比及基质在纤维周围的分布，对所有纵横比的情况都适用。

The cross section aspect ratio of fiber and the distribution of matrix surrounding are taken into consideration in the model . It is applicable to a full range of aspect ratios .

该模型可以成功地解释随反应时间的延长，碳纤维截面变扁的现象以及该纤维的截面微观构造；

These models explain the phenomenon that the cross section of helical carbon fiber becomes tabular as the growth time increases , and also explain the carbon fiber cross section 's microstructure .

扫描电镜照片显示，干湿纺纤维截面比较细密，几乎看不到孔洞；而湿纺纤维的截面明显粗糙，孔洞很多。

The SEM micrographs showed that the cross-section of dry-jet wet spun fiber presents a fine texture with little aperture while the cross-section of wet-spun fiber looks quite coarse with much pores existed .

干法腈纶纤维截面呈犬骨型，具有良好的弹性、蓬松性，色泽鲜艳，手感柔软。腈纶的独特性能决定了它是羊毛的最佳替代品。

Dry PAN fiber with done-bone type section has unique characteristics such as good flexibility , fluffy , fresh color and hand feeling softness , hence leading to be the best substitute of woolen .

最后对木棉和涤纶中空纤维截面树脂切片和哈氏切片的显微图像及其纤维截面特征参数和分布进行对比，并给出部分纺织纤维截面切片图像。

The micrographs of resin slice and Hardy ′ s thin cross-sections of hollow polyester fiber and kapok are obtained and their cross-section characteristic parameters are compared . And micrographs of cross-sections of some textile fibers are presented .