摘要:
A method of analysing chemical species in a solution, the method comprising: providing an electrochemical deposition apparatus comprising a first electrode (2) formed of an electrically conductive diamond material and a second electrode (4); locating the first electrode in contact with a solution (8) to be analysed and the second electrode in electrical contact with the solution to be analysed; applying a potential difference between the first and second electrodes (2, 4) such that current flows between the first and second electrodes through the solution to be analysed and chemical species are electro-deposited from the solution onto the first electrode; applying a spectroscopic analysis technique to the electro-deposited chemical species (M1, M2, M3) on the first electrode to generate spectroscopic data about the electro-deposited chemical species on the first electrode; and using the spectroscopic data to determine the type of chemical species electro-deposited on the first electrode. The spectroscopic analysis technique, which can be based on X-rays, fluorescent X-rays or gamma rays, is used in combination with stripping voltammetric measurement performed on the first electrode. The spectroscopic data can also be used in-situ calibration data for calibrating the reference potential used voltammetric measurements.
摘要:
Shape-memory polymer is a new kind of material utilizing shape memorizing mechanism of elastomer of polyurethane family. These materials exhibit novel properties such as sensing (thermal), actuaton, high damping, adaptive responses, super-elasticity capability and air permeability. Recently, they are used and applied to finish textiles and garments. Although there are some characterization methods for shape memory polymers, there is currently no characterization method to evaluate the effects of shape memory fabrics. This invention provides a method to determine the shape memory coefficient of fabrics. The fabric is first deformed from the original state to a deformed state and then subjected to a switch temperature. Different parameters are measured at the original state before and after the fabric is subjected to the switch temperature to determine the shape memory coefficient.
摘要:
A series of paraffin compounds, the phase change materials (PCMs), were microencapsulated in an interfacial polymerization process to form the double-shell microcapsules with relatively low shell permeability. The inner shell is formed through the reaction between polypropylene glycols and bifunctional polyisocyanates and the outer through the reaction between bifunctional polyisocyanates and polyamines added in the continuous aqueous phase. The so prepared microencapsulated paraffin compounds emulsion can be used as the medium for temperature management in many fields.
摘要:
Visual thermal functional textile clothing designs are created using a programmed computer and advanced computing techniques. The computer is supplied with information from a number of databases relating to human body properties and relating to textile material characteristics. The method is used to generate functional designs that are visually displayed for use by a textile designer or engineer.
摘要:
A method of analyzing chemical species in a solution, the method comprising: providing an electrochemical deposition apparatus comprising a first electrode (2) formed of an electrically conductive diamond material and a second electrode (4); locating the first electrode in contact with a solution (8) to be analyzed and the second electrode in electrical contact with the solution to be analyzed; applying a potential difference between the first and second electrodes (2, 4) such that current flows between the first and second electrodes through the solution to be analyzed and chemical species are electro-deposited from the solution onto the first electrode; applying a spectroscopic analysis technique to the electro-deposited chemical species (M1, M2, M3) on the first electrode to generate spectroscopic data about the electro-deposited chemical species on the first electrode; and using the spectroscopic data to determine the type of chemical species electro-deposited on the first electrode. The spectroscopic analysis technique, which can be based on X-rays, fluorescent X-rays or gamma rays, is used in combination with stripping voltammetric measurement performed on the first electrode. The spectroscopic data can also be used in-situ calibration data for calibrating the reference potential used voltammetric measurements.
摘要:
A diamond based electrochemical band sensor comprising: a diamond body; and a plurality of boron doped diamond band electrodes disposed within the diamond body, wherein at least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to a level suitable to achieve metallic conduction, the boron doped diamond electrodes being spaced apart by non-conductive intrinsic layers of diamond, wherein the diamond body comprises a front sensing surface with the plurality of boron doped diamond band electrodes being exposed at said sensing surface and extending in an elongate manner across said surface, and wherein each boron doped diamond electrode has a length/width ratio of at least 10 at the front sensing surface.
摘要:
A process for the microencapsulation of phase transitional paraffin compounds is described. Polypropylene glycols with the average molecule weight over 400 were used as the surface tension modifiers for emulsifying the paraffin compounds. Polyisocyanates capable of being dissolved in the phase change materials were employed to promote the deposition of melamine, partially methylolated melamine and the precondensate of melamine-formaldehyde onto the hydrophobic droplets for the microencapsulation. The prepared emulsion of microencapsulated phase change materials was successfully coated on textile fabrics and the coated products showed improved thermal regulation function.
摘要:
A system for analyzing fabric surface appearance includes a feed mechanism for running a fabric over a crest including a frame for holding the fabric bent to form a crest, an image capturing device for capturing profile images of the fabric surface at the crest, and a computer system for manipulating the images. The computer system produces a three-dimensional representation of the fabric surface and identifies characteristics in the three-dimensional representation. The information is compared to reference data to identify a grade for the fabric.