A Review on Polymer/Kaolinite Nanocomposites

2013 ◽  
Vol 750-752 ◽  
pp. 213-216 ◽  
Author(s):  
Yue Xin Jia ◽  
Li Jing Sun ◽  
Xing Gang Chen ◽  
Man An ◽  
Xiao Ming Sang
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Scientific Literature ◽  
Gas Permeability ◽  
Science Research ◽  
Basal Spacing ◽  
Dramatic Improvement ◽  
Polymer Science ◽  
Recent Advances ◽  
Review Reports

This review reports recent advances in the field of polymer/kaolinite nanocomposites. These materials are attracting considerable interest in polymer science research because they exhibit dramatic improvement in properties at very low filler contents. The structure of kaolinite is displayed and approaches to expand the basal spacing of kaolinite are given. In addition, the preparation of polymer/kaolinite nanocomposites is summarized. Part of the review also concentrates on the improvement of mechanical property, thermal stability, gas permeability and other properties of polymer/kaolinite nanocomposites, and detailed examples are also drawn from the scientific literature. The prospect of the study on polymer/kaolinite nanocomposites is elaborated.

scholarly journals Curcumin-loaded polyvinyl butyral film with antibacterial activity

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 673-681
Author(s):  
Yanchao Qiao ◽  
Lijie Duan
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Antibacterial Activity ◽  
Polyvinyl Butyral ◽  
Counting Method ◽  
E Coli ◽  
Antibacterial Materials ◽  
Good Antibacterial Activity ◽  
Colony Counting ◽  
Widespread Interest

AbstractAntibacterial materials have found widespread interest in different fields nowadays. In this study, curcumin (Cur) was incorporated into the polyvinyl butyral (PVB) matrix by dissolving in ethanol for improving the functional properties of a pure PVB film. We found that Cur was uniformly dispersed in the PVB matrix, which showed good compatibility. Moreover, the incorporation of Cur could also improve thermal stability, hydrophilicity, and mechanical property. The UV-vis spectra of the PVB–Cur film demonstrated that the film could block ultraviolet radiation. Subsequently, the antibacterial activity of the PVB–Cur film was measured by the colony-counting method against S. aureus and E. coli. The results showed that the PVB–Cur film exhibited good antibacterial activity. Therefore, the PVB–Cur film was considered as a promising material for food and medical packaging applications.

scholarly journals In situ synthesis of MWCNT-graft-polyimides: thermal stability, mechanical property and thermal conductivity

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13517-13524
Author(s):  
Chunbo Wang ◽  
Bing Cong ◽  
Junyu Zhao ◽  
Xiaogang Zhao ◽  
Daming Wang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Mechanical Property ◽  
Thermal Stability ◽  
In Situ Synthesis ◽  
Enhanced Thermal Conductivity

In situ synthesis of MWCNT-graft-polyimides enhanced thermal conductivity at a relatively low loading.

Thermal and viscoelastic behaviors of nanotube-reinforced polyethylene composite

2011 ◽  
Vol 1312 ◽  
Author(s):  
Ananta Raj Adhikari ◽  
Mircea Chipara ◽  
Karen Lozano
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Mechanical Behavior ◽  
Storage Modulus ◽  
Polymer Matrix ◽  
Loss Modulus ◽  
Polyethylene Composite ◽  
Viscoelastic Behaviors ◽  
Thermal Stability Of

ABSTRACTThe effect of processing (shear) time on the mechanical behavior and thermal stability of multiwalled nanotube reinforced polyethylene was investigated. It was observed that the mechanical property (storage modulus, loss modulus) of the composites is process dependant whereas the thermal stability does not. The increase in mechanical behavior is attributed to a stronger interface between the nanotube and the polymer matrix.

Recent Advances in Medical Device Triage Technologies for Chemical, Biological, Radiological, and Nuclear Events

2015 ◽  
Vol 30 (3) ◽  
pp. 320-323 ◽  
Author(s):  
Krystal Lansdowne ◽  
Christopher G. Scully ◽  
Loriano Galeotti ◽  
Suzanne Schwartz ◽  
David Marcozzi ◽  
...  
Keyword(s):  
Medical Device ◽  
Emerging Infectious Diseases ◽  
Science Research ◽  
Identification System ◽  
Publication Type ◽  
Novel Technologies ◽  
Medical Apps ◽  
Recent Advances ◽  
Nuclear Events ◽  
Medical Countermeasures

AbstractIn 2010, the US Food and Drug Administration (Silver Spring, Maryland USA) created the Medical Countermeasures Initiative with the mission of development and promoting medical countermeasures that would be needed to protect the nation from identified, high‐priority chemical, biological, radiological, or nuclear (CBRN) threats and emerging infectious diseases. The aim of this review was to promote regulatory science research of medical devices and to analyze how the devices can be employed in different CBRN scenarios. Triage in CBRN scenarios presents unique challenges for first responders because the effects of CBRN agents and the clinical presentations of casualties at each triage stage can vary. The uniqueness of a CBRN event can render standard patient monitoring medical device and conventional triage algorithms ineffective. Despite the challenges, there have been recent advances in CBRN triage technology that include: novel technologies; mobile medical applications (“medical apps”) for CBRN disasters; electronic triage tags, such as eTriage; diagnostic field devices, such as the Joint Biological Agent Identification System; and decision support systems, such as the Chemical Hazards Emergency Medical Management Intelligent Syndromes Tool (CHEMM-IST). Further research and medical device validation can help to advance prehospital triage technology for CBRN events.LansdowneK, ScullyCG, GaleottiL, SchwartzS, MarcozziD, StraussDG. Recent advances in medical device triage technologies for chemical, biological, radiological, and nuclear events. Prehosp Disaster Med. 2015;30(3):1-4

scholarly journals Effect of Regenerated Cellulose Fibers Derived from Black Oat on Functional Properties of PVA-Based Biocomposite Film

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1149
Author(s):  
Naresh Shahi ◽  
Gautam Joshi ◽  
Byungjin Min
Keyword(s):  
Mechanical Property ◽  
Thermal Stability ◽  
Functional Properties ◽  
Crop Production ◽  
Transmission Rate ◽  
Composite Films ◽  
Cellulose Fibers ◽  
Poly Vinyl Alcohol ◽  
Regenerated Cellulose ◽  
Control Film

In this study, agricultural residue from black oat, a cover crop usually grown to improve soil nutrients between the periods of regular crop production, was used as a source of cellulose fibers. Concentrations of 1, 3, and 5 wt. % of regenerated cellulose (RC) fibers blended in poly(vinyl alcohol) (PVA) solution were used to prepare the reinforced composite films (CFs) by the solvent cast method. Compared to neat PVA film (control), the effects of RC addition on functional properties of CFs, such as water absorption, transparency, thermal stability, and mechanical property were investigated. All CFs with different RC concentrations exhibited improved mechanical property and thermal stability while the swelling property was decreased, and no significant changes were observed in the film transparency as compared with the control film. Among the CFs, films with 3% RC significantly decreased water vapor transmission rate, swelling, and soluble fraction (p < 0.05). In addition, Young’s modulus and tensile strength were increased by 40 MPa and 3 MPa, respectively, while elongation at break was decreased by 4%, compared to the control film. The results indicate that RC from black oat might be feasible as potential bio fillers to improve film properties in a bio-based composite matrix.

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