Fibrous composites

Fibrous composites Fibrous glass Fibrous materials Ficam... 

The composites have been classified in general under the following heads particulate composites, fibrous composites, and laminated composites [1]. 

FE data have been collected from the fracture of a wide variety of single and multi-component solids, ranging from single crystals of molecular solids to fiber-reinforced composites, and also from the peeling of adhesives 0-16 ). In this paper, we will restrict our attention to FE arising from the failure of polymer composites (fibrous and particulate), and the individual components thereof (fibers and matrix resins). 

Zhang Y et al (2005) Electrospinning of gelatin fibers and gelatin/PCL composite fibrous scaffolds. J Biomed Mater Res B Appl Biomater 72(1) 156-165... 

Proteins are also classified according to their shape and composition. Fibrous proteins (e.g., collagen) are long, rod-... 

Maintaining a safe and healthy workplace is more complex than it has ever been. New materials and new processes have created new problems. About 8,000 new chemical compounds are created each year. Production materials have become increasingly complex and exotic. Engineering materials now include carbon steels, stainless steels, cast irons, tungsten, molybdenum, titanium, aluminum, powdered metals, plastics, etc. Each of these metals requires its own specialized processes and has its own associated hazards. Nonmetals are more numerous and have also become more complex. Plastics, plastic alloys, and blends, advanced composites, fibrous materials, elastomers, and ceramics also bring their own potential hazards to the workplace. 

It was reported by Chen et al. that the conductivity was 1.3 X 10" S/cm for Ag/PPy/PAN composite fibrous mats prepared from AgNOg/PAN containing 52% AgNOg. Figure 8.18 shows the conductivities as a function of AgN03... 

The effects of the surface modification of p-CaSi03 on the electrospun poly(butylene sucdnate)/p-CaSi03 composite fibers were investigated (Zhang and Chang 2009). Dodecyl alcohol can be esterified on the surface of p-CaSiOj to modify the bioceramics and prepare the composite fibrous materials with improved properties. Therefore, PBSU/p-CaSiOj composite nanofiber membranes were fabricated by incorporating the surface-modified and surface-unmodified p-CaSiOj into the polymer matrix. 

Zhang, Y, Ouyang, FL, Lim, C., Ramakrishna, S., and Huang, Z. (2005) Electrospinning of gelatine fibers and gelatine/PCL composite fibrous scaffolds. /. Biomed. Mater. Res. Part B Appl. Biomater., 72, 156-165. 

Zhang, Y. Z., H. W. Ouyang, C. T. Lim, S. Ramakrishna, and Z.-M. Huang (2005b). Electrospinning of gelatine fibers and gelatin/PCL composite fibrous scaffolds. Journal of Biomedical Materials Research 72B(1) 156—165. 

Joints are usually divided into three classifications by composition fibrous, cartilaginous, and synovial joints. Fibrous joints (synarthroses) are connected by dense fibrous tissue. Their motions are greatly limited. Commonly, they are found in the skull. The cranial articular surfaces are irregular, yet they form specific suture match and interlock. They are joined together by fibrous tissue, which is very firm and practically fills the joint space. This type of articulation allows greater motion in infants, with gradual reduced motility with aging. 

Wu, L., Li, H., Li, S., Li, X., Yuan, X., Zhang, Y, 2010. Composite fibrous membranes of PLGA and chitosan prepared by coelectrospinning and coaxial electrospinning. Journal of Biomedical Materials Research Part A 92, 563-574. 

Composite fibrous nonwovens of PI/PET had been prepared by using PET nonwovens as support to collect electrospun PI nanofibers. The PI/PET fibrous... 

It has been reported that electrospun PVDF/PAN composite fibrous membrane could have an electrode uptake of liquid electrolyte (lithium salt in PC) over 300 %... 

Electrospun Polymer/Inorganic Composite Fibrous Membrane... 

In another report, the Ti02 was grafted onto the PMMA macromolecular chains to form PMMA-g-Ti02. Then the PMMA-g-Ti02 was blended with PVDF and electrospun to make composite fibrous membrane. The PMMA-g-TiOa could inhibit the crystallization of PVDF during the solidification process and improved the ionic conductivity of the fibrous polymer electrolyte from 2.51 to 2.95 mS cm at 20 °C. The electrochemical stability window of the polymer electrolyte was also enhanced due to the presence of PMMA-g-Ti02 [49]. 

Wu J, Wang N, Wang L, Dong H, Zhao Y, Jiang L (2012) Unidirectional water-penetration composite fibrous film via electrospinning. Soft Matter 8(22) 5996-5999. doi 10.1039/c2sm25514f... 

Fig. 18.5 (a) Photography of superhydrophobic silver ragwort leaves. Inset is the SEM image of silver ragwort leaf. It is consisted of fiber with nanogrooves, (c) Biomimetic PS/PA6 composite electrospun nanoflbrous. (c) The PS/PA6 nanofibrous mats show superhydrophobic property, (d) Stress-strain behavior of PS/PA6 composite fibrous mats with different ratios (a) 4/0, (b) 3/1, (c) 2/2, (d) 1/3, and (e) 0/4 [30]... 

---