Development of a Pseudohomogeneous, Three-Dimensional, Continuously Woven Composite Material

1972 ◽  
Author(s):  
T. N. Faddis ◽  
G. W. Forman ◽  
C. D. Reese
Keyword(s):  
Composite Material ◽  
Three Dimensional ◽  
Woven Composite

Tensile Properties and Failure Mechanism of a New 3D Nonorthogonal Woven Composite Material

2016 ◽  
Vol 23 (6) ◽  
pp. 1117-1135 ◽  
Author(s):  
Yu Wang ◽  
Jin Sun ◽  
Deng’an Cai ◽  
Guangming Zhou
Keyword(s):  
Composite Material ◽  
Tensile Properties ◽  
Failure Mechanism ◽  
Woven Composite

Synthesis of CdSe/ZnS@HPU-2 composites for highly sensitive and multicolor florescence response to Fe3+

2019 ◽  
Vol 234 (4) ◽  
pp. 269-276
Author(s):  
Huijun Li ◽  
Yaling He ◽  
Qingqing Li ◽  
Zhouqing Xu ◽  
Yan Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Composite Material ◽  
Color Change ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Intensity Ratios ◽  
Uv Lamp

Abstract A composite material based dual-emission probe for Fe3+ was prepared by the hybridization of a three-dimensional framework with CdSe/ZnS quantum dots (QDs)-doped silica nanoparticles. The obtained probe showed characteristic fluorescence emissions of CdSe/ZnS QDs (red) and Cd-metal-organic framework (MOF, blue) under a single exciation wavelength. Upon the detection of Fe3+, only the fluorescence of Cd-MOF was quenched, whereas the red fluorescence of CdSe/ZnS QDs particles was mostly reserved. Consequently, the variation of the two fluorescence intensity ratios displays a continuous color change from blue to red upon exposure to different amounts of Fe3+ ions, which can be easily observed under a UV lamp.

scholarly journals Cellulose nanocrystals/graphene oxide composite for the adsorption and removal of levofloxacin hydrochloride antibiotic from aqueous solution

2020 ◽  
Vol 7 (10) ◽  
pp. 200857 ◽  
Author(s):  
Junhong Tao ◽  
Jie Yang ◽  
Chengxiao Ma ◽  
Junfeng Li ◽  
Keqing Du ◽  
...  
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Adsorption Capacity ◽  
Cellulose Nanocrystals ◽  
Photoelectron Spectroscopy ◽  
High Surface ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Oxide Composite

Residual antibiotics in water are often persistent organic pollutants. The purpose of this study was to prepare a cellulose nanocrystals/graphene oxide composite (CNCs-GO) with a three-dimensional structure for the removal of the antibiotic levofloxacin hydrochloride (Levo-HCl) in water by adsorption. The scanning electron microscope, Fourier transform infrared (FT-IR), energy-dispersive spectroscopy, X-ray photoelectron spectroscopy and other characterization methods were used to study the physical structure and chemical properties of the CNCs-GO. The three-dimensional structure of the composite material rendered a high surface area and electrostatic attraction, resulting in increased adsorption capacity of the CNCs-GO for Levo-HCl. Based on the Box–Behnken design, the effects of different factors on the removal of Levo-HCl by the CNCs-GO were explored. The composite material exhibited good antibiotic adsorption capacity, with a removal percentage exceeding 80.1% at an optimal pH of 4, the adsorbent dosage of 1.0 g l −1 , initial pollutant concentration of 10.0 mg l −1 and contact time of 4 h. The adsorption isotherm was well fitted by the Sips model, and kinetics studies demonstrated that the adsorption process conformed to a quasi-second-order kinetics model. Consequently, the as-synthesized CNCs-GO demonstrates good potential for the effective removal of antibiotics such as levofloxacin hydrochloride from aqueous media.

scholarly journals Research on the Application of MWCNTs/PLA Composite Material in the Manufacturing of Conductive Composite Products in 3D Printing

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 635 ◽  
Author(s):  
Jinjie Luo ◽  
Haibao Wang ◽  
Duquan Zuo ◽  
Anping Ji ◽  
Yaowen Liu
Keyword(s):  
Composite Material ◽  
3D Printing ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Poly Lactic Acid ◽  
Melt Flow Rate ◽  
Conductive Composites ◽  
Fused Deposition ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

As an advanced manufacturing technology that has been developed in recent years, three-dimensional (3D) printing of macromolecular materials can create complex-shaped components that cannot be realized by traditional processing. However, only a few types of macromolecular materials are suitable for 3D printing: the structure must have a single function, and manufacturing macromolecular functional devices is difficult. In this study, using poly lactic acid (PLA) as a matrix, conductive composites were prepared by adding various contents of multi-walled carbon nanotubes (MWCNTs). The printability and properties of MWCNT/PLA composites with different MWCNT proportions were studied by using the fused deposition modeling (FDM) processing technology of 3D printing. The experimental results showed that high conductivity can be realized in 3D-printed products with a composite material containing 5% MWCNTs; its conductivity was 0.4 ± 0.2 S/cm, its tensile strength was 78.4 ± 12.4 MPa, and its elongation at break was 94.4% ± 14.3%. It had a good melt flow rate and thermal properties, and it enabled smooth printing, thus meeting all the requirements for the 3D printing of consumables.

Cranioplasty: Surgical Repair of Cranial Defects

1991 ◽  
Vol 8 (4) ◽  
pp. 247-249 ◽  
Author(s):  
Donald Leake
Keyword(s):  
Computed Tomography ◽  
Composite Material ◽  
Bone Grafting ◽  
Surgical Repair ◽  
Three Dimensional ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Complex Contour ◽  
Contour Defects

A lightweight polymeric composite material is described for use with bone grafting for the restoration of complex contour defects of the neurocranium. Custom fabrication based on three-dimensional computed tomography provides an anatomically precise reconstruction with reestablishment of the bony integrity of the skull.

Sign in / Sign up

Export Citation Format

Share Document