Six principles for the treatment of flame retardant materials
Flammable materials may generally include thermoplastic resins, thermoset resins, rubber, paint, fibers (both natural and man-made), wood, and the like. The above-described combustible material can be modified into a flame retardant material in the following manner.
Flammable materials may generally include thermoplastic resins, thermoset resins, rubber, paint, fibers (both natural and man-made), wood, and the like. The above flammable materials can be modifiedflame retardantMaterials.
(1) Thermoplastic resin Thermoplastic polyester resin includes ordinary polyolefin, polyester, polyamide, etc., such as polyethylene, polypropylene, polystyrene, ABS (acrylonitrile-butadiene-styrene copolymer), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate (PC), nylon 6, nylon 66, etc., are extruded and granulated in a screw extruder, melt blended with corresponding flame retardant additives, and made into flame retardant particles to complete flame retardant modification. However, in general, flame retardant additives are targeted, that is, specific flame retardants act on a certain resin. There are few types of flame retardants that can be widely used, and they usually require careful selection, testing, and composite applications.
(2) Thermosetting resin Thermosetting resin includes epoxy resin, phenolic resin, polyurethane, unsaturated polyester resin, etc. This resin needs multi-component blending when used, so flame retardant can be added at the same time and mixed evenly by rapid stirring. After mixing, a curing reaction is carried out at a certain temperature. After curing, a thermosetting resin material with flame retardant properties can be formed.
(3) Rubber can be used as wire and cable materials, conveyor belt materials, etc., and requires high flame retardancy. Flame retardant rubber is a mixture of raw rubber, flame retardant and various additives, plasticized, blended and cured.
(4) The coating is also composed of many components. Therefore, in use, the flame retardant and its composite components are usually mixed with the components forming the coating to form the coating, and then coated on the surface of the steel structure or wood structure to form the flame retardant coating.
(5) Fibers include chemical fibers such as polyester, polypropylene, acrylic, spandex and natural fibers such as cotton and silk. Such chemical fibers may be spun with flame retardant particles before being made into fibers. The resulting fiber has a flame retardant function. In addition, flame retardant functionalization can be achieved by finishing of fibers and fabrics. The fiber fabric is immersed in the flame retardant finishing liquid. The flame retardant component can react with functional groups on the fiber to bind the flame retardant structure to the fiber, and the flame retardant component can also physically adhere to the fiber. However, due to the weak binding force between the flame retardant component and the fiber, the water washing resistance of the physically bonded flame retardant component is poor. After several washes, the flame retardant function of the fiber is lost.
(6) Firewood is a flammable material. But as a natural material, it has the characteristics of environmental protection, regeneration and biodegradation. Impregnation is commonly used for wood flame retardant. That is to say, through high negative pressure, the air in the gap in the wood and the fiber tube is extracted, and then the wood is immersed in the flame retardant liquid, and then pressurized to make the flame retardant composition into the wood, and the flame retardant wood material is formed after drying.
Real-time information
Zhongke Flame Retardant Organization Watches 20 Closing Ceremonies
On the morning of October 22, 2022, members of Zhongke Flame Retardant New Materials Co., Ltd. watched the closing ceremony of the 20th Congress under the leadership of General Manager Wang Ligui.
Everyone knows that there are two common flame retardants. Today we are going to talk about only one of them. Aluminum hydroxide flame retardant is an environmentally friendly halogen-free flame retardant, which can be widely used in fabrics, wood, plastics, and rubber., Polyurethane and other industries have ideal flame retardant effect. In the process of industrial application, it is found that flame retardant failure occurs when aluminum hydroxide flame retardant is added. The following are the reasons for the failure of aluminum hydroxide flame retardant, how to prevent it, how to deal with the operation, and restore the original function.
As a flame retardant, magnesium hydroxide also need to improve what aspects?
When it comes to flame retardants, everyone is familiar with them. Although we usually have less contact with them, we can know what they are used for from the name. Have to talk about magnesium hydroxide, we all know that its main presentation state is a granular, at present, the market sales of magnesium hydroxide particle size is larger, part of the commodity particle size up to tens of microns, immediately used as a flame retardant, poor dispersion, the physical properties of raw materials greater harm. In industrial production, physical grinding methods are generally used to reduce the particle size to 1 micron. The surface of magnesium hydroxide has high polarity and is easy to agglomerate. As the compatibility of refractory materials and polymer substrates, it not only reduces its flame retardant grade, but also causes more serious harm to the physical properties of raw materials.
Hefei Zhongke Flame Retardant New Material Co., Ltd
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Ministry of Foreign Trade Telephone:13956052398
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