大豆蛋白复合纤维热学性能研究

对比聚乙烯醇（PVA）膜,采取热重分析和差示扫描量热法研究了大豆蛋白/聚乙烯醇复合纤维（以下简称sp/PVA）的热学性能,并分析了聚乙烯醇及sp/PVA热性能的差异.不同sp/PVA测试结果表明大豆蛋白含量及线密度影响纤维的热性能.热重分析中,大豆蛋白含量多少影响失重过程长短,纤维线密度越低,热性能越好.差示扫描量热结果显示,sp/PVA的第一个峰为玻璃化转化区,第二个峰主要是由于聚乙烯醇的熔融引起.     

The Study on the Conductivity Performance and Shielding Effectiveness of Electro-magnetic Radiation of Polyethylene Film with Different Content of Carbon Black Particles

With the help of the testing apparatus made by ourselves for shielding electromagnetic radiation, the electric conductivity and shielding effectiveness of electromagnetic radiation of polyethylene film contained different content of carbon particles was systematically studied in this paper. The results indicate that the electric conductivity and shielding effectiveness of electromagnetic radiation of polyethylene /carbon film have closely relations with content of carbon black particles, which exists a critical content value as 14%～30% and its properties will have a tremendous change.     

Effects of Heat Treatment on Properties of Polyester Filaments

Many properties of polyester filaments such as heat shrinkage, tenacity, elongation at break and etc. are greatly influenced by drawing, so post-drawing is important in downstream processing. As more and more profile fibers and multi-variance fibers used in textile industry, the properties of above two kinds of differential polyester filaments after drawing in different heat conditions were studied. Finally following conclusions were obtained: Firstly, the tenacity and elongation at break decreases with the rise of Tp. Secondly, the tenacity rises but the elongation at break decreases with the increase of Tb. Then, when the Tb is low, both the shrinkage in boiling water and hi hot air decreases with the rise of Tp, while, when the Tb is high, both the shrinkage rises with the rise of Tp. The last, both the shrinkage decreases with the rise of Tb.     

静电纺定向排列纳米纤维阵列的研究

借助静电纺工艺,可以获得定向排列纤维,这些纤维具有细胞培养的培养基、组织工程支架、补强材料以及电子材料等较多的潜在用途.利用一种简单的接收装置同时获得了8组定向排列的静电纺纳米纤维阵列,这种接收装置是由8根交于中心的不锈钢棒组成.通过光学显微镜以及电镜观察可以发现,沿单轴定向排列的亚微米纤维横跨于两根临近不锈钢棒中间,整体外观与蜘蛛网相似.研究了电压和接收时间对纤维定向排列的影响,结果发现,随着电压的增加,定向排列的纤维长度会增加,而且,随着收集时间的增加,定向排列纤维产量和纤维的定向排列程度都会增加.实验结果表明,这种方法不仅简单、价廉而且产量高,同时还可以赋予纤维阵列较高的定向排列程度.     

Relationship between Creasing-Recovery Force and Crease-Recovery Angle

To find out the reason of resulting in the crease recovery of a fabric and provide theoretical guidance for designing a new material with good creasing-recovery property,the relationship between the creasing-recovery force and the crease-recovery angle of a woven fabric was investigated by self-setup experimental device.The results show that the crease-recovery angle of a woven fabric is correlated with the creasing-recovery force of the fabric in a linear relation.Furthermore,it is found that the internal stress is the principal force of affecting the creasing-recovery property of a woven fabric.In addition,the relationship between the tensile property of a woven fabric and the creasing-recovery property of the fabric has also been investigated,showing that the lower relaxation velocity of tensile stress of a fabric is,the better creasing-recovery property of the fabric has.     

棉花粘性仪的研制

在分析棉花粘性特点、粘性测试方法的基础上,研制了棉花粘性仪,并应用该仪器对实际棉花样品进行了测定,试验结果和工厂的实际情况基本相符。证明本仪器用于测试棉花粘性是可行的。     

针织物性能与接触舒适性的实验研究

研究纬编针织内衣织物的穿着接触舒适性．通过对１２种针织物的穿着对比实验以及物理机械性能与表面性能的测试，分析了影响人们穿着舒适性的各种因素．建立起了针织物穿着的主观感觉量与客观物理量之间的关系．     

毛巾类织物柔软性测试方法

根据压缩拉伸原理,自行设计了简单而有效的毛巾柔软性测试装置.将毛巾从圆形环孔中穿过,模拟织物柔软性主观评价时人手对织物的触摸作用.应用此测试方法可反映出毛巾织物在低应力作用下的多种力学特征,且操作简单、信息容量大、综合性强.分析毛巾柔软性测试过程中各阶段力学作用特点,获取最优装置尺寸参数与测试速度.同时提出表征毛巾织物柔软性的9个特征指标.     

织物组织结构参数对紫外透过率的影响

分析了织物组织结构对紫外线的透通理论.测试了不同组织、结构参数织物的紫外线透过率,验证了理论分析的合理性.结果表明,相同原料与覆盖系数的不同组织,其紫外线透过率主要随着组织的平均浮点数与交织次数的增加而增加,同时还受到组织交织规律的影响;织物表面的直通孔隙的大小是影响紫外线透过率的主要因素,而直通孔隙的大小不仅与覆盖系数有关,还与织物组织的平均浮点数、交织次数、交织变化规律有关.     

几种动物毛纤维基本性能对比研究

通过对北极狐绒毛、山西羊驼毛、安哥拉兔毛、乌苏里貉绒毛等的密度、卷曲性能、压缩性能、摩擦性能和拉伸力学性能的测试,分析了它们之间的差异.结果表明,有髓腔的北极狐毛、安哥拉兔毛、貉毛的密度和断裂强度均较小,但安哥拉兔毛的表面卷曲数少;山西羊驼毛的密度与羊毛、羊绒相当,强力和断裂伸长率较大,产品耐磨性较好.