Melting process and melt structure of fly ash/magnesium slag blends for the production of inorganic fibers

Fiber production from inorganic industrial solid wastes is an effective waste management strategy. Because of cost considerations, most enterprises generally use local solid wastes as raw materials to produce fibers. In this study, we explored the feasibility of producing fibers using fly ash and magnesium slag. The results show that the melting temperature of the blends composed of fly ash, magnesium slag, and a small amount of calcined dolomite first decreased and then increased with an increase in acidity coefficient (M_k) from 1.0 to 2.4_. The samples could form a eutectic system in the M_k range of 1.4–1.8, and therefore have a relatively low melting temperature in this M_k range. Fly ash could react with magnesium slag and calcined dolomite to form akermanite, gehlenite-magnesium, and anorthite at temperatures close to the melting temperature; therefore, these crystalline phases were the main reaction products formed in the samples with M_k values lower than 1.80. Anorthite reacted further with some Na-containing and Si-containing spieces to produce labradorite. Thus, the content of anorthite and labradorite rapidly increased and they became the major crystal phases in the blend samples with M_k values greater than 1.80. MAS-NMR spectroscopic analysis revealed that the network structure of the melts depended on the ratio of bridging oxygen to non-bridging oxygen; a high ratio of bridging oxygen to non-bridging oxygen could lead to the formation of a dense network structure in the melt. The blends of fly ash and magnesium slag can be used to produce wool fibers and continuous fibers. In addition, the suitable temperature ranges for the production of both types of fibers were determined. The drawing temperature for continuous fiber production depended on the degree of polymerization and structure of the melt.     

绒线漂染综合控制系统研究应用

介绍了一种集中管理,分散控制的计算机温度自动控制系统,该系统控制精度高,控制方法先进,测量手段简单实用,抗下扰能力强,性能价格比好。在天水宏大绒线厂的试运行中取得了良好的绒线染色效果,并取得了显著的经济效益。     

The interaction between skill, postures, forces and back pain in wool handling

Wool handling is an important rural occupation where workers process 200 or more fleeces daily, separating them into various quality components. Loads and postures they experience carry substantial risk of low back pain (LBP). Although a formal skill training structure exists, interaction with loads and LBP is unknown. We examined whether skill and LBP influenced trunk postures and loads of 60 wool handlers representing 3 skill levels. LBP prevalence ranged from 20% for junior (lowest skill) to 45% for open class (highest skill) wool handlers. Open class wool handlers demonstrated increased lateral bend and more axially twisted postures, generating greater medio-lateral shear forces and lateral bend and axial twist moments. LBP was associated with open class wool handlers spending more time in severe axially twisted postures. These findings suggest that skill-based training needs to be reviewed to reduce the quantity of axially twisted posture which may help reduce the prevalence of LBP in this workforce.     

丝素蛋白腈纶结构性能及其混纺针织纱的开发

通过对丝素蛋白接枝腈 性能及原理的讨论，提出了素蛋白腈纶纤维与天然纤维混纺针织纱及最终产品开发中的技术要点，为丝素蛋白接接腈纶的产品提供了途径。     

SZ蛋白酶对羊毛的减量和防毡缩性能的影响

在用蛋白酶对羊毛织物进行改性处理的研究中，获得一种对羊毛具有独特处理效果的蛋白酶ＳＺ。本文主要就ＳＺ蛋白酶对羊毛的减量特性及其防毡性能的影响进行研究。ＳＺ蛋白酶采用Ｐｅｒｚｙｍ工艺对羊毛进行减量处理，可有效地防止羊毛毡缩。减量处理对羊毛的损伤较小，实际应用可以被接受。研究表明，羊毛的减量防毡缩处理并不需要完全去除鳞片，对于有效的减量，去除２／３的鳞片可获得最佳的减量处理效果。     

棉毛混纺织物前处理工艺探讨

棉毛混纺织物前处理采用酶煮练加双氧水重漂的工艺，生产的半制品能满足后道染色的需要，并能最终生产出风格优良的产品。     

羊毛陶瓷整理技术研究

阐述了作者对羊毛陶瓷整理技术上的研究成果，对羊毛陶瓷整理技术的机理探讨、工艺试验及产品风格进行了全面的论述，并对红外辐射与保暖性增加问题提出看法。     

羊毛染色过程中的化学损伤与保护

羊毛纤维是最为传统和最具服用价值的优良纺织材料之一,但在染色过程中,温度、酸、碱和机械力的作用会导致羊毛纤维遭受损伤,使其服用性能恶化.半个多世纪以来,羊毛染色过程中的损伤和保护问题一直是染整工作者研究的一个热点,人们为尽量减少羊毛纤维在染整过程中的损伤进行了大量的研究工作.本文针对羊毛染色过程中的化学损伤和保护问题,进行了有关研究资料的搜集与整理,旨在对该领域的研究状况有一个较为全面的认识.     

功能性羊毛复合针织面料研究

功能性羊毛复合针织面料无刺痒感，热湿舒适性好，是一种统制羊毛针织内衣的新型面料。本文论述了它的导热排汗的机理及原料选用和编织工艺，对有关企业的生产可提供指导作用。     

Identification methods descriptions of wool and cashmere北大核心

This paper summarized generalize from the feature parameter method, the solution method, spectroscopy, DNA, bio-chip method and summary. Extracting the fiber diameter, the density of scale, scale edge height parameters of an optical microscope or electron microscope can be classified by statistical principles to achieve the desired effect. Potassium permanganate solution for the damage obvious fibers after treatment was compared by measuring the weight loss of tensile strength and other information for comparison to distinguish. Spectral identification standard spectra measured spectra do worse, its threshold is a reasonable choice can be quickly identified. DNA biochip law and the principle of law is similar to belong to the same biological information extraction classification. The use of X-ray diffraction analysis crystalline fluff. The use of X-ray diffraction analysis crystalline fluff. Qualitative detection of fine wool and cashmere pull difference lies in the identification fineness, flexibility, curl and other properties.