The Hong Kong Polytechnic University

The Hong Kong Research Institute of Textiles and Apparel Limited

Xiao-ming Tao

Xi Wang

Hui Zhang

Bao Yang

Yang Li

Xia Guo

Chun-wah Marcus Yuen

Mei-yi Leung

Enling Hu

Songmin Shang

Su Liu

Xiao-yin Cheng

Shi-rui Liu

Joanna Tsang

Disclosed are an intelligent bionic human body part model detection device and a method for manufacturing same. The device comprises: a bionic human body part model (); and multiple optical fiber grating sensing units () which are integrated on an optical fibre and arranged at multiple pre-determined positions of the bionic human body part model (). The device can improve the accuracy of the detection of pressure applied to the intelligent bionic human body part model.

Intelligent bionic human body part model detection device and method for manufacturing same

This invention discloses a method for preparing a catalyst for catalyzing the degradation of organic pollutants in printing and dyeing wastewater by ozone, wherein the catalyst comprises a porous carbon material as a substrate and metal oxide nanoparticles deposited on the surface of the substrate. The method comprises the steps of: allowing a mixture of resorcinol, formaldehyde, trimethylhexadecyl ammonium bromide, multi-walled carbon nanotubes and deionized water to react to form cured product, which is then calcinated and carbonized at high temperature to produce the porous carbon material; impregnating the resulting porous carbon material with nitrate solution, drying the porous carbon material, and calcinating it at high temperature, wherein the absorbed nitrate is decomposed into metal oxide and embedded into the porous carbon material. Depending on the requirement of applications, the raw material for preparation of the catalyst of the present invention can be pulverized to screen out the appropriate particle size to fit into practical engineering applications. With the optimization of catalytic oxidation process, the catalyst can be used to promote the rapid degradation of organic matter in printing and dyeing wastewater by ozonation, and the percentage of degradation can be greatly improved. As a result, indicators of wastewater, including the chromaticity and COD, can be significantly reduced.

Catalysts for degradation of organic pollutants in printing and dyeing wastewater and method of preparation thereof

Existing pressure sensing fabrics may involve two portions, i.e., insulating and conductive portions in the fabric, which increases the complexity of the fabric system and more important, and the instablization of the resistance-strain relationship during dynamic deformation which limits the application fields due to intrinsic properties difference between the two portions. These fabrics commonly employ two or more layers to accomplish the detecting functions. Such arrangements increase the thickness, weight, and cost of the sensors with some other disadvantages such as low accuracy, instability, etc. This invention describes a pressure sensing fabric have a general structure as simple as a plurality of electrically conducting yarns forming interlocking loops of yarns. The pressure sensing fabric is found not only be able to sense pressure but also the magnitude of the pressure.

Pressure sensing fabric

Polypyrrole (PPy) is one of the most commonly studied conducting polymers due to its good stability, high conductivity, ease of preparation and non-toxicity. The stability of the conductivity of polypyrrole films depends on the choice of dopant anion, the method of preparation, and the conditions of aging. Most of the existing methods only improve stability by sacrificing conductivity, as well as sensitivity. This invention provides a method for coating conducting polymer onto a substrate by first applying an anionic dopant and an oxidizing agent onto the substrate. The monomer is then allowed to form the conducting polymer at about &#x2212;10 to &#x2212;80&#xb0; C. for a sufficient period of time. After storage for a long period of time (nearly a year), the conductive polymer coating still retains almost the same strain sensitivity and at least up to 85% of its initial conductivity.

Methods for coating conducting polymer

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Hong Kong, China

Xiao-ming Tao