2019年6月29日星期六

Lab Scale Electrospinning Machine E03-001 Sold to The University of Waterloo In Canada



On June 24, Lab Scale Electrospinning Machine E03-001 was delivered to The University of Waterloo In Canada. This equipment is selling well, the price is less than ten thousand dollars, welcome your inquiry.

Features:
Desktop style,  small size;
Function integrated, professional;
Superior performance, CE/FCC certification;
4.3 inch numerical screen, simple and clean integration operating system;
Highly cost effective, elegant appearance;
Tool machine, affordable;

Parameters:
Spinning voltage: 0-30kv;
Both roller and panel collector;
Nozzle reciprocating motion breadth: 150mm
Dimension: 600*600*800mm
Net weight: 47.46KG

2019年6月27日星期四

Centrifugal Electrospinning Machine

Features:
  1. More spinnable material;
  2. High voltage power supply: 0-30kv;
  3. Centrifugal speed: 0-7000rpm;
  4. Temperature and humidity controllable;
  5. Optional collector: disc, vertical grid;
  6. Precious feeding pump: supplying liquid continuously.


2019年6月25日星期二

Nanomaterial Spraying Machine

Introduction

Nanomaterial spraying technology is based on electrostatic, ultrasonic, gas field for fine spraying of low-viscosity materials, solving the agglomeration problem in the use of nanoparticles. With nano-scale microsphere spraying, the technology can be applied to the preparation of fuel cell proton exchange membranes, electrode catalytic materials, battery separators, heat exchange membranes, quantum materials, etc.

Features

  1. Feeding method: injection pump;
  2. Applicable solution viscosity: ≤30cps;
  3. Environment temperature range: room temp up to 60±3℃ adjustable;
  4. Environment humidity range: room humidity down to 40%±5%RH adjustable;
  5. Independent R&D.


2019年6月18日星期二

PROFESSIONAL MICRO/NANO 3D PRINTER


Features
  1. Desktop style, small size;
  2. Maximum printing speed: 300mm/s;
  3. High voltage power supply: 0-10KV adjustable;
  4. Optional: melt nozzle; precision injection pump;
  5. Opening mechanical structure, easy to self-assembled and disassembled, can be applied in maker education;
  6. Optional dual Y-axis motion system for printing continuously.


2019年5月31日星期五

Morphology of Molecular Assembly


Amphiphilic peptides have a hydrophilic head group and a hydrophobic alkyl tail. The hydrophobic tail helps in aligning the head group to form various secondary, supersecondary, and tertiary conformations. Very thin cylindrical nanofibers (<10-nm diameter) with high aspect ratio, or nano belts, are achieved by a self-assembly of peptide amphiphiles (PAs) under specific solution conditions (pH, ionic strength, and temperature). The 1D nanostructures can interact further among one another, making a 3D network. These 3D network structures make a hydrogel in water. Hydrophobic and electrostatic interactions are the dominating forces in the self-assembly of amphiphilic peptides. The amphiphilic cyclic peptide composed of two b-glucosamino acids and one trans-2-aminocyclohexylcarboxylic acid in formic acid and water (7/3 v/v) makes self-assembled rods and fibers of different dimensions depending upon the solution concentration. A concentration of 1.1 10 5 M provided a rod-shaped assembly of c. 5-nm diameter, which corresponds to a nine-columnar (3 triple bundle) structure (Fig. 4.7A). By increasing the peptide concentration to 1.1 10 4 M, a uniform fibrous assembly of c. 15 nm in

2019年5月28日星期二

Nano-microfiber Composites For Filtration

Nanofibers prepared by molecular self-assembly are in general not self-supporting and therefore require stabilizing scaffold structures. In fact, a lot of research in the past has been done with su pramolecular self-assembly of molecules forming a network of nanofibers used as organo/hydro gelators. But efforts to use them as a self-standing membrane or as free fibers were not strong. Therefore, the self-assembly of trisamides was also tried on a substrate, i.e., other microfiber non wovens, leading to microenanofiber composites (Fig. 4.4) used for filtration (Weiss et al., 2016).

2019年4月29日星期一

Polymer/Carbon Nanotube Composite Nanofibers


To improve the compatibility between CNTs and polymers, the surface functionalization of CNTs has been developed (Kharaziha et al., 2014; Molnar et al., 2008; Ra et al., 2005; Mazinani et al., 2009; Yee et al., 2012; Subagia et al., 2014; Diouri et al., 2014). For instance, Kharaziha et al. established a simple strategy to prepare electrospun gelatin/CNT composite nanofibers by using carboxyl acid groupemodified CNTs, and the well-dispersed CNTs aligned along the fibrous axis could be observed (Fig. 3.15B). This work demonstrated CNTs as a component of tough and flexible scaffolds with outstanding electrical properties (Kharaziha et al., 2014). Molnar et al. (2008) synthesized PVA/CNT composite nanofibers with diverse types of CNTs and different functional groups via electrospinning. Furthermore, other synthetic methods such as electrospinning combined with electrospraying and a surface adsorption approach have been developed as well (Xuyen et al., 2009; Kim et al., 2006b; Vaisman et al., 2007; Dai et al., 2011; Rana and Cho, 2011).