In the recent days of science and technology, the [Multifunctional Design R&D and Performance Evaluation of Protective Clothing" project jointly conducted by Donghua University and Shenzhen Youpute Garment Technology Co., Ltd. won the 2013 [Textile Light" science and technology second prize. The multi-functional design research and development and performance evaluation of protective clothing, the development of protective clothing with fire insulation, waterproof and breathable, anti-virus anti-bacterial and other features, suitable for the personal emergency protection of the scene of disaster emergency response and other personal protection needs.
New Technology Protective Clothing Meets Individual Protection Needs of Emergency Rescue
Integrated multi-hazard protection
It is understood that the general nature of the use of protective clothing is flame-retardant fiber processing retardant protective clothing. The intrinsically flame-retardant fibers represented by meta-aramid are natural flame-retardant due to their special chemical structure, they are difficult to burn in the air, they extinguish themselves immediately after the fire source is removed, and the burning part is rapidly carbonized to form a heat-insulating protective layer. , Without melting, dripping or puncturing, it can effectively reduce or avoid burns and burns. This kind of protective clothing has a single protection function and poor comfort and functionality. According to the project leader Li Jun, director of the Department of Fashion Design and Engineering at Donghua University, the "multi-functional design and development of protective clothing and performance evaluation" project first proposed a theoretical model for the functional design of protective clothing, and established "layered insulation, multiple protections. , function build-up" and other protection models, to achieve a comprehensive protection of a variety of hazards. The thermal protection performance TPP combined with the total heat dissipation THL was used to comprehensively design the fabric system performance. At the same time, a two-step optimization technique was developed to construct a composite fabric system consisting of an outer waterproof breathable layer, a thermal insulation layer, and a comfort layer. The flame retardant outer layer and the thermal insulation layer were developed using arylsulfone fibers; the development of [three in one" Technology, development of a waterproof, breathable, anti-virus, antibacterial and selective permeation fabric with [sandwich" structure; a four-dimensional dynamic body structure design method is proposed, and innovative design of protective clothing with adaptability to work activities is carried out.
"Burning Man" help improve the system
According to Li introduced, the textile and clothing overall protection performance evaluation level, the project is the development of a comprehensive evaluation of characterization techniques protective fabric system ergonomics and comfort of a variety of physical and chemical properties of performance, explore The system and method for evaluating the overall performance of fabric protective clothing from system properties to fabrics have been established. The project has developed a thermal protection performance tester for the simulation of the tensile deformation of micro-space fabrics under simulated clothing, revealed the evolution of the overall performance of multi-layer fabric systems, and developed a device for evaluating the scald protection performance of fabrics with high-temperature liquids, achieving high temperatures in fabrics and clothing. Theoretical research results on liquid permeation protection. At the same time, it uses the advanced technology of the fire protection combustion mannequin garment thermal protection performance evaluation system, [Donghua Fireman", as a substitute for biological human body, to achieve quantitative prediction of human skin burn site and degree in the simulated fire, and to protect protective clothing and fire protection. The overall thermal protection performance of garments, thermal protection workwear, etc. was objectively evaluated. It is understood that "Donghua Fireman" is China's first burning dummy. In the high-risk environment of the fire scene, excellent protective equipment can effectively reduce the damage to firefighters and evacuees. In the past, the fabric burning test was generally used in the tests, but the experiment could not reflect the actual effect on the human body and it was easy to cause insufficient protection during use. Using the burning dummy to simulate the fire environment experiment can better understand the use of protective clothing. "Donghua Fireman" laboratory is the world's first fire body human body protective equipment combustion laboratory. At the same time, the dummy completely simulates the Chinese human body structure, can accurately sense high-temperature heat flow in different active postures, and accurately report body skin burns. In addition, its joints can be adjusted to simulate the human activities of firefighters. This will help the researcher to further improve the easy-pull clothing parts in the rescue activities and the gaps in the fabrics according to the physical characteristics of the Chinese people. The laboratory research team will then analyze the data of the dummy after burning. . Hu Zuming, director of the Chemical Fiber Research Institute of Donghua University who developed protective clothing fabrics, said that fabrics research and development and combustion tests are just like "spearing one another and attacking another". By requiring gradual upgrading of the combustion test, the researchers will design the thermal protection equipment more scientifically and rationally to effectively curb the thermal damage to the human body caused by dangerous environments such as fire, battlefield and heat radiation. The fastest way to produce, study, and research [Our project team adopts the system of responsible persons for projects. Through the establishment of sub-topics, the responsibilities of all parties involved in cooperation are determined, and the rights and responsibilities are clearly defined. The mission is clear." Li Jun said. Aiming at the [R&D and performance evaluation of protective clothing multi-functional design" project, Donghua University relies on the theoretical advantage of [Donghua Fireman" Laboratory in the research team of production, research and development composed of Donghua University and Shenzhen Youpute Garment Company. It is mainly responsible for the establishment and improvement of the heat protection performance assessment system for the fire dummy clothing. Youpute company will be years of professional R & D, production of special protective clothing production experience back to Donghua University, the latest research results as quickly as possible to reach the production line. According to reports, both parties in product development make full use of the existing conditions for the integration of production, study, and research of the project unit. The Chemical Fiber Research Institute of Donghua University and Utop Thai Corporation participated in the whole process, and the developed technology was quickly applied to the scale of production. The process and time for the completion of technology and product development, and the production of products mainly use the existing production conditions of the project unit. Through regular summing up of the project experience, a meeting of experts, scholars, and engineers from various industries, universities, and research institutes was convened to discuss the difficulties and priorities in the progress of the project. The research results were transformed in a timely manner through a platform for production, research, and research to provide a good atmosphere for the transformation of technological achievements. Necessary supporting measures. It is reported that the results of the [Multifunctional Design R&D and Performance Evaluation of Protective Clothing" project have been widely used in the production of flame retardant clothing, protective clothing, chemical protective clothing and other protective equipment products.
