Design, Research, Development And Performance Evaluation Of Multifunctional Protective Clothing

< p > with the development of economy and society, fire also changes in quantity and quality.

A fire has destroyed dozens of lives, hundreds of thousands of lives, hundreds of thousands, millions or tens of millions of dollars in property losses.

In particular, the malignant fire accidents in special jobs are still serious, and there are more than 10 fires which happen to kill more than 10 people or seriously injured more than 20 people every year.

Therefore, to strengthen the labor protection for special workers, we should start with the design, development and performance evaluation of protective clothing.

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Less than p days ago, the project "multifunctional design, development and performance evaluation of protective clothing", which was completed by Donghua University and Shenzhen Univ Clothing Technology Co., Ltd., won the award of science and technology two, "a href=" http://www.91se91.com/news/index_c.asp "> textile light < /a > in 2013. The project has carried out multifunctional design, research and development and performance evaluation of protective clothing. The protective clothing developed has many functions such as fire protection, heat insulation, waterproof and breathable, anti-virus and antibacterial, and is suitable for individual protection needs of emergency rescue such as disaster emergency scene.

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< p > < strong > multiple hazards integrated protection < /strong > /p >

< p > it is understood that the general protective clothing is the use of essential fire retardant fiber processing flame retardant protective clothing.

The natural flame retardant fibers represented by aramid fibers have natural a href= "http://www.91se91.com/news/index_c.asp" flame retardance < /a > due to their own special chemical structure. They are difficult to burn in the air and extinguish immediately after the fire source is removed. The burning part is carbonized quickly to form an adiabatic protective layer without melting, dropping or piercing. It can effectively reduce or avoid burns and scalds. This protective clothing has a single protective function, poor comfort and poor functionality.

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According to Li Jun, the director of the Department of fashion design and engineering of the project leader, Li Jun, the project leader of the Department of fashion design and engineering of Donghua University, first put forward the theoretical model of protective clothing function design, and established the protection mode such as "layered insulation, multiple protection, function aggregation" and so on.

The comprehensive design of fabric system performance is carried out by adopting thermal protection performance TPP and total heat dissipation THL.

At the same time, the two step optimization technology is developed, and a composite fabric system consisting of outer waterproof, breathable layer, heat insulation layer and comfortable layer is constructed. The fire retardant and flame retardant outer layer and insulation layer are developed by using polysulfonamide fiber, the technology of "three in one" is developed, and the waterproof, breathable, antiseptic, antibacterial and selective penetrated fabric with sandwich structure is developed.

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< p > < strong > "fire man" helps improve the system < /strong > /p >

< p > according to Li Jun, in the aspect of fabric and < a href= "http://www.91se91.com/news/index_c.asp" > clothing > /a > overall protection performance evaluation, the project developed a comprehensive evaluation of the various physical and chemical properties and comfort performance characteristics of the protective fabric system, and explored the establishment of a systematic and scientific system for protecting clothing from fabric properties to the overall performance evaluation of clothing.

The project has developed a thermal protection performance testing device for simulating the tensile deformation of the micro space fabric under the simulated clothing, reveals the evolution rule of the comprehensive performance of the multi-layer fabric system, and develops an evaluation device for the fabric high-temperature liquid burn protection performance, and has obtained the theoretical research results of the fabric and its clothing as a whole in the high-temperature liquid penetration protection.

At the same time, the "Donghua fire man" is used as the substitute of the biological body, and the quantitative evaluation of the burn site and degree of human skin is carried out in the simulated fire site. The overall thermal protection performance of protective clothing, fire protective clothing, thermal protective clothing and other clothing is evaluated objectively.

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< p > it is understood that the "Donghua fire man" is China's first burning dummy.

In the high-risk environment of fire, excellent protective equipment can effectively reduce the damage to firefighters and escapees.

Previous tests generally used fabric burning test, but the experiment can not reflect its actual effect on human body, and it is easy to cause insufficient protection in use.

Experiments on simulating the fire environment with burning dummy can better understand the effect of protective clothing.

The "Donghua fire man" laboratory is the first human body protective equipment Combustion Laboratory in the world.

At the same time, the dummy fully simulates the Chinese body structure, can accurately perceive the high temperature heat flow under different posture, and accurately report the burn degree of the body skin.

In addition, its joints can be adjusted to simulate the human activities of firemen.

This helps researchers to further improve the parts of clothing that are easy to pull in the rescue activities and cause the gaps of fabrics easily, according to the physical characteristics of the Chinese people. The team will then analyze the data of the dummy after burning.

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Hu Zuming, director of the chemical fiber Research Institute of Donghua University, who developed protective clothing fabrics, said that the fabric development and combustion test is just like "shielding the other with P."

By requiring gradual escalation of combustion tests, researchers will be more scientific and rational in designing thermal protection equipment to effectively curb the thermal damage caused by dangerous environments such as fire, battlefield and thermal radiation.

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< p > < strong > the fastest way of production, teaching and research, < /strong > /p >

< p > "our project team adopts the responsibility system of the subject, and establishes the sub topics to determine the responsibilities of the partners, so that the responsibilities and responsibilities are clear and the tasks are clear."

Li Jun said.

In view of the project "multifunctional design, research and performance evaluation of protective clothing", the Donghua University, which is composed of Donghua University and Shenzhen top garment company, Donghua University is mainly responsible for the establishment and improvement of the thermal protection performance evaluation system of the fire scene manikin garment relying on the theoretical superiority of the "Donghua fire man" laboratory.

The company has returned the experience of professional R & D and production of special protective clothing for many years to Donghua University. The latest research results will be delivered to the production line as soon as possible.

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< p > according to the introduction, the two sides make full use of the existing conditions of integration of production, study and research in the product development side. The chemical fiber Research Institute of Donghua University and the whole company are involved in the whole process. The developed technology is rapidly applied to the scale production, shortening the process and time of the completion of technology and product development, and the production conditions mainly use the existing production conditions of the project units.

By summing up the experience of the project regularly, we will convene a meeting of experts, scholars and engineers to discuss the difficulties and key points in the progress of the project. The research results will be pformed in a timely manner through the platform of industry, University and research, providing a good atmosphere and necessary supporting measures for the pformation of technological achievements.

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