Introduction to the materials and properties of 7 kinds of special protective clothing 1, over-cooled protective clothing Over-cooled protective clothing requires high insulation, small size, good comfort, and sporty agility. Quiet air is a poor conductor of heat, in addition the best insulation medium can also be used fluff and goose feathers and other poultry feathers, or through natural animal simulation design to increase the static insulation air content in a variety of filled fiber or high loft material . In the market, Thinsulate and Alban rimaloft from 3M Co., a blend of crude, conventional, and fine denier fibers, absorb less than 1% of their mass, making them better than those using natural fleece in wet conditions; A multi-layered synthetic garment designed by Arthur D Little Company for use in Antarctica. The inner layer is a cool, downy underwear with a stem-and-water finish. The middle layer is a brush-like, high-fluffy, cool, plush insulation layer. The outer layer is waterproof. Windproof TFE (polytetrafluoroethylene) coated aramid knitted fabrics. However, such garments cannot be treated by ordinary ironing and ironing methods. 2. Bulletproof and mechanical damage protective clothing This is a kind of body armor protective clothing, mainly used for bulletproof, harmless, anti-saw, anti-thin metal, glass, knife or other sharp edged objects. The replacement of Nylon by Kevlar was a major advancement in this area. In the field of soft armor, aramid multilayer stacking can be used to provide further ballistic and stab-resistant protection. Currently, Allied Spectra Shield uses Spectra Ultra High-Strength Polyethylene Fiber Poly-composite panels are 1/3 lighter in mass than Kevlar, and its 23-layer composite provides the same level of protection as 30-layer Kevlar composites. Spectra Shield can't use more than 200 degrees Fahrenheit, but the material's thermoformability is ideal and it can be made into various shapes. "Mechanical protection products such as protection against harm" include protective gloves made of para-aramid, baffles, sleeves, and anti-stabs. The leg protector may use a needle felt of para-aramid or crude nylon yarn and fiber, or a complex of needle felt and woven material, and may be entangled with the serrated teeth to stop the body from causing serious harm. 3, radiation protective clothing Most garments can have a certain role in preventing and controlling the entry and isolation of foreign substances from the skin and harmful substances, but the protection against radiation requires a special copolymer coating, such as commonly used polyethylene coating Tvek, used in nuclear plants, high-voltage wires or Electronic equipment and X-ray environment. The Savannah River Site Plutonium plant in the United States uses this special protective clothing against Tritium fluoride. The garment is coated on both sides of polyester material. The coating material is CFE/EVA/FVDC (Saran)/EVA copolymer and there is uniform Non-fabricated Saran/CFE coating materials or inorganic cloth materials were used. Mouth wood uses polyethylene-coated boron fibers to produce protective ray protective clothing. It is also possible to add lead cores to the fibers to increase the level of protection for X-ray environments. 4, harmful particulate protective clothing This protective suit is used for protective clothing that works on lead dust, spraying, or work areas like micro-harmful substances. Such garments are usually made of non-manufactured materials, but also use woven polyester/cotton blends, cotton, or coating materials. . There are mainly three uncoated Tvek standard fabrics in the United States; Kimberl Clark's 3-layer spunbond-meltblown-spun spunbonded Olefin fabric Kleen Guard; and hybrid non-manufactured materials such as spunbonded Olefins. This product is usually used once. Currently, the main problem is to improve the comfort of wearing so that the sweat from the body can be emitted through the clothing. 5, microbial protective clothing Medical protective clothing is mainly used to protect against the transmission of life-threatening viruses. The composite copolymer-coated woven fabric and non-woven fabric protective materials can be used as protective clothing fabrics for medical personnel, first-aid personnel and police personnel after antibacterial finishing. Dupont's Bioweat material can be used for the protection of blood germs, and the buccal product Bactekiller (Kanebo) adds the bactericide to the panning liquid. The bactericide is mainly silicate, and it will play a role when the outside is wet. 6, chemical protective clothing Protective clothing for chemical protection is divided into grades A to D according to the degree of protection. Class A provides the highest protection, the overall seal, contains respiratory equipment to prevent chemicals and steaming,; Class B is similar to Class A, for Anti-toxic chemicals are splashed, but not completely sealed; Class C provides protection against chemical splashes and may not have a respirator; Class D only provides less protection. Ordinary or coated Tvek spunbond Olefin fabric is the most commonly used chemical protective clothing fabric, a higher level of protection can be achieved through Tvek coating Saranex23F, Saranex23F, is a Dow chemical plant product, is a multi-layer protective coating material One layer is low density polyethylene, the middle is copolymer vinylidene chloride and one layer of vinyl acetate CEVA) is bonded to Tvek. In addition, the manufacturer also developed products including polyester and Olefin spunbond or fleece nonwovens, which cost less than US$1,000. More durable garments are nylon, polyester, or nylon/polyester blend fabrics, coated with polymer Teflon FTFE (Dupont) J based EDPM Viton (Dupont), and can be used as Class A protective clothing. 7, thermal protective clothing The development of fibers, etc., and the development of fire-retarded cotton and blended fibers provide a good basis for the production of such protective clothing. For firefighter suits, the outer layer is usually a Nomex}Kevlar or Kevlar/FBI blended woven material with an areal density of 254.6 g/m2 and 7.5 ounces per square yard), providing primary fire protection and wear resistance. The external surface of the surface of the surface of a water-repellent layer of PTFE coating, waterproof into the garment and the production of heat inside the steam, anti-heat pressure; waterproof surface layer is a layer of lining, to increase the content of static air, improve thermal insulation The commonly used material is Nomex needled felt or high loft material, especially for use in iron processing plants; fire-retardant wool fabrics are also used in this field of thermal protection, in particular in foundries; needle punch felts of Nomex and Kevlar, The combination of a woven cloth or aluminum coated with high heat radiation can provide superior thermal protection and insulation properties. More instruments: Electric heated incubator Plant shredder Automatic vacuum foaming machine, adopt batching technology, foaming in vacuum condition. 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composed of storage tanks, batching, mixing, vacuum, mould, and computerized controlling systems. It can be realized
numerical control during the whole production. It is used for making all kinds of foam.
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* Base plate can be Lifting automatically: it makes the sponge with uniform density and flat top by using
this way.
* Easy cleaning function.
* It can be realized numerical control with accurate and convenient ration during the whole production. And
it becomes more easily and stable to operate the machine
. * Continuous foaming.
* Flat top pressing device.(Additional)