纤维断裂强度

采用分子量为20~30万的PDLLA制备的复合纤维断裂强度高，性能优异。

The tensile strength of the compound fibers of PDLLA ( molecular weight 20,000-300,000 ) was high .

分子筛：分散剂：交联剂（质量比）为1.0：1.2：0.2时，改性纤维断裂强度可提高62.7%。分子筛在改性PET纤维中分散均匀，并形成了拟网状结构。

And the breaking strength was increased by 62.7 % when the mass ratio of molecular sieve , dispersant and cross linker was 1:1.2: 0.2.The molecular sieve had a uniform dispersion in modified PET fiber and formed a net-like construction .

纤维断裂强度强度与断裂伸长伸长率呈极显著正相关，与断裂功极显著正相关。

Breaking strength ( tenacity ) is positively correlated with breaking extension ( extensibility ) and breaking work at 1 % level .

所制备的竹原纤维断裂强度为5.4cN/dtex，接近玻璃纤维的断裂强度。

The tenacity of the bamboo fiber made by this technology is 5.4 cN / dtex , which is close to the tenacity of the glass fiber .

探讨HVI测试棉纤维断裂比强度的影响因素。

Effect factors of cotton fiber breaking tenacity tested by HVI were discussed .

络合比0.04，浓度22%的PA6络合液最适合目前装置的干法纺丝，并且随着纺丝压力的增大，纤维的断裂强度和弹性模量都明显增大，可以明显提高纤维性能。

The performance was the best to the dry-spinning with the complexation of 0.04 and the density of 22 % . With the increasing of the spinning pressure , elastic modulus and breaking tenacity apparently improved . Good performance fibers could be obtained .

结果表明，PLA纤维的断裂强度和初始模量随拉伸倍数的增加而提高，经4倍拉伸，其断裂强度为2.39cN／dtex，初始模量为17.27cN／dtex。

The results showed that the breaking strength and initial modulus were increased with the increase of draw ratio and reached to 2 . 39 cN / dtex and 17 . 27 cN / dtex at 4-time drawing , respectively .

遮阴会降低纤维断裂比强度、纤维伸长率、成熟度和马克隆值。

Shading could decline fiber intensity , elongation , uniformity and micronaire .

玻璃纤维筋断裂强度的理论和实验研究

Experimental and theoretic research on tensile strength of GFRP rebars

强力仪测定棉纤维断裂比强度的一致性研究

A Study on Consistency of Cotton Fibre Specific Breaking Strength by Different Tensile Testers

氧化棉纤维的断裂强度和断裂伸长率随氧化程度的提高不断降低。

The breaking strength and elongation decreased as the degree of oxidation of cotton fiber increased .

试验说明，随着芳香母粒含量的增加，出现纺丝困难，纤维的断裂强度下降。

The spinning process became complicated and the fiber strength decreased with the addition of fragrant masterbatch .

纤维断裂比强度随铃龄增大而升高；相同铃龄随温度下降断裂比强度降低。

While fibre break strength was increased with cotton boll age , it was reduced when temperature dropped .

超细羽绒粉体的添加降低了共混纤维的断裂强度和断裂伸长率。

The breaking strength and the elongation at break of the blend fibers were lowered by the addition of UDP .

本文就各种强力仪测定棉纤维断裂比强度指标具有一致性的问题进行研究。

In this paper , the problem of consistency is investigated for the specific breaking strength of cotton measured on different tensile testers .

纤维的断裂强度与杨氏模量主要由拉伸倍率决定，断裂伸长率则由拉伸倍率和拉伸温度决定。

The fracture stress and Young 's modulus are decided by draw ratio and independent of our set drawing temperature , however breaking elongation is decided by the both .

实验结果表明，随着环氧丙烷聚醚混入比例的增加，纤维的断裂强度、弹性回复率以及耐热氧化降解性能降低，而断裂伸长有所增加。

The results showed that the properties of fibers reduced , such as breaking strength , elastic recovery and oxidative degradation stability , but their breaking elongation improved , as the increasing of the blending ratio .

用质量工程学中的正交优化法，以信噪比为分析依据，对丙纶长丝的纺丝工艺参数进行优化设计，提高了纤维的断裂强度。

Y using the orthogonal optimal method in the quality engineering and in accordance with the signal-noise ratio , an optimal design of the spinning technological parameters of PP filament is suggested , which promote the breaking tenacity of the filament remarkably .

用Weibull分析处理10mm长的4种不同线密度粘胶原丝和相应碳纤维的单丝断裂强度，得到原丝线密度、强度分布和碳纤维强度的对应关系。

The breaking strength of four kinds of 10 mm rayon precursors and their carbon fibers with different linear density was analyzed by Weibull statistical method . The relationship among linear density and strength distribution of Rayon precursors and the strength of carbon fibers was studied .

接枝后纤维的拉伸断裂强度为1.9~2.1cN/dtex，断裂伸长为25%~30%。

The elongation breaking strength of the grafted fiber was 1.9 ~( 2.1 cN / dtex ,) and the breaking extension was 25 % ~ 30 % .

交联使纤维的湿断裂强度明显提高，湿干强度比可提高16.9%，但对纤维的热稳定性影响不大；

Wet breaking strength increased obviously after crosslinking , and the ratio of wet strength to dry strength increased by16.9 % , while there was a little impact on thermostability .

纺丝液中碳纳米管质量分数小于1%时，对丝素/MWNTs复合纤维毡的断裂强度与初始模量都有明显的增强效应，但碳纳米管质量分数过高时，力学性能反而恶化。

When the concentration of the MWNTs was less than 1 % , the fracture strength and initial modulus of composite fiber mat were increased significantly with the increasing concentration of MWNTs . But if the mass fraction of MWNTs is too high , the mechanical property will deteriorate .

HC中纤维断裂延伸率及强度的混杂效应可以用断裂力学、微观（统计）力学等理论解释；

The hybrid effect on the fracture strain of fibre anal the strength of hybrids can be explaineds by the theories of fracture mechanics ( thermodynamics ) and micromechanis ( statis-tics ) .

纤维含量对纤维增强复合材料断裂强度的影响

Effect of fibre volume fraction on tensile strength of fibre reinforced composite material

拉伸试验结果表明，异形截面纤维与圆形纤维比较，其断裂强度均较高；异形截面纤维复合材料的拉伸强度也较大。

The tensile test results showed that the tensile strength of special-shaped fibers and their composites are both higher than that of the circular-section fiber and its composite , respectively .

通过熔融纺丝制得荧光纤维，并研究了纤维的断裂强度、拉伸、取向、结晶特征和红外图谱，介绍了扫描电镜显示的荧光剂在荧光纤维中的分散情况图。

Fluorescence fiber is made of melting-spinning . This paper researches its breaking strength , drawing strength , orientation , crystallization and infrared spectrum , introduced the dispersion diagram of fluorescent agent in fluorescence fiber shoun by scan electronic microscope .

结果表明：微波法可以在短时间内使柠檬酸接枝到真丝纤维表面；接枝后真丝纤维的断裂强度和延伸度基本不受影响；

The results showed that the microwave method could graft citric acid onto the silk fiber surface in a short time , that the strength at break and prolongation of the grafted silk fibers were not affected , and the hydroscopicity and dyeing property were raised .

通过DSC、DMA、X-衍射和SEM分析纤维的结构，测试了纤维接触角、断裂强度和层间剪切强度。

The structure of treated fiber is analyzed by DSC , DMA , X-diffraction and SEM . And some properties are tested such as contact angle , breaking tenacity and interfacial shear strength .

结果显示：制得的金属螯合纤维，随着金属离子含量的增加，纤维断裂强度逐渐降低；

From the measure data , some regularity is concluded : the breaking strength of fiber decrease gradually with the increase of the adsorbed metal ion quantity .

单纤维强力仪测得再生柞蚕丝素纤维的断裂强度是天然柞蚕丝素纤维的52.20%。

The breaking strength of regenerated fibers was 52.20 percent to native fibers .