Dissertation > Excellent graduate degree dissertation topics show

The Influence of Fibers with Different Sizes on the Properties of the Composite

Author: HuZuoZuo
Tutor: HuangGuanZuo；WangShaoPeng
School: Beijing Institute of Clothing Technology
Course: Materials Science
Keywords: profiled fibers surface area composite tensile strength at break CaCO3 powder
CLC: TB332
Type: Master's thesis
Year: 2010
Downloads: 25
Quote: 1
Read: Download Dissertation

Abstract


Several different shapes and sizes of spinning dies were designed and made, the corresponding fibers were prepared, and their structure and properties were investigated by optical microscope、mechanical property test and fiber number. Two kinds of fiber-reinforced composite were prepared by compounding these fibers with matrix material, the properties of the composite were measured respectively by mechanical property test. The first kind of composite is fiber/PE, which is prepared only by compounding fibers with PE. The second is fiber/PE/CaCO3 composite, which is added into CaCO3 compared with the first composite.The results show that surface area of profiled die is greater than the circular when volume of them is equal. For the same shape dies, the larger the relative volume, the larger the relative surface area. The shapes of the cross-section of fibers almost maintain that of spinneret holes. But because of the existence of surface tension, the shapes of all kinds of profiled fibers tends to round. The tensile strength at break of composite is obviously higher than pure PE, so properties of matrix is reinforced by fibers. For the same volume fibers of different shapes, fiber numbers of them are roughly equal, and fracture strength of circular fiber is higher than profiled fibers; relative surface area of profiled fibers is greater than circular fiber, so performance of the matrix can be reinforced more obviously. For the same shape fibers of different sizes, the fiber number larger, fracture strength of composite is larger also, this is because actual volume and actual surface area of fiber is greater, and monofilament strength is higher, too. The addition of CaCO3 does improve the performance of the composite. When content in the composite are 5%, after surface treatment of CaCO3 can more significantly enhance properties of composite than untreated CaCO3.

Related Dissertations

  1. The Preparation and Thermoelectric Properties of Rare Earth Subsituted Ag Composite Ca3Co4O9-Based Oxides,TQ174.1
  2. Synthesis, Structure and Properties of PBO/SWNT Composite Fibres,TQ340.64
  3. Study on Properties of Thermal Shock and Ablation Resistance for Gr/Al-Mg Composites,TB332
  4. Study on Theory and Experiment of Wire Drawing with Composite Ultrasonic Vibration,TG663
  5. Technology of Filling Clearance and Optimizing the Bonds during Ultrasonic Brazing,TG454
  6. Study of Tin Alloy Carbon Composite Used for Lithium Ion Battery,TM912.9
  7. Research on Control System and Head of 7-Axis NC Fiber Placement Machine,TG659
  8. Study on Preparation of Composite Cross-linked Modified Modified Potato Starch,TS236.9
  9. Municipal tourism land use planning environmental impact assessment,X820.3
  10. The Combined Effect of Several Environmental Factor on Fertilization, Hatching and Juvenile Growth of Nile Tilapia,S917.4
  11. Research on the Theory of the Transmission-line Metamaterials and Their Applications,O441.6
  12. Of Bi N Co-doped TiO \u003csub\u003e 2 \u003c/ sub\u003e of the preparation and performance,O614.411
  13. Preparation and Characteration of Composite Microspheres with Dual-, Triple- Responsive Properties,O631.3
  14. Study on Technics & Performance of Nano Electroless Composite Plating on 20~# Steel,TQ153
  15. Research on Spinning Performance of Collagen and PVA Composite Solution,TQ340.64
  16. Preparation, Characterization and Application of Prussian Blue Composite Nanomaterials,TB383.1
  17. The Preparation and the Properties of the Composite Films from Cassava Starch and Guar Gum,TS236.9
  18. Fermentation and Immunoreactivity of Extracellular Polysaccharide by P.baumii Pilát,R285
  19. Development of Functional Automotive Interior Textiles,TS106.6
  20. Technological Research on Preparation of High Activity Walnut Pulp by Ultrasonic-compound Enzyme Synergistic Method,TS255.6
  21. Adjustable composite element frequency selective surface design,TN713

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Composite materials > Non-metallic composite materials
© 2012 www.DissertationTopic.Net  Mobile