Flame Retardant Treatment Method of Flame Retardant in Building Materials
In building materials, most of the building plastics are combustible materials, and a small number of them are flame retardant materials. Plastic in the fire several combustion heat, high temperature artillery, burning speed, the release of a large number of smoke and toxic gases, therefore, building plastics must be flame retardant characteristics, professional flame retardant manufacturers, for you to introduce, flame retardant treatment methods in building materials. 1, add flame retardant in the plastic to add flame retardant and inorganic filler, so that the combustion characteristics of plastic products to be good. Commonly used inorganic flame retardants are aluminum hydroxide, magnesium hydroxide, magnesium carbonate, zinc borate, = two zinc oxide; organic flame retardants are chlorinated paraffin, hexabromobenzene,
In building materials, most of the building plastics are combustible materials, and a small number of them are flame retardant materials. Plastic in the fire several combustion heat, high artillery temperature, burning speed, release a lot of smoke and toxic gases, therefore, building plastics must be flame retardant characteristics, professionalflame retardantManufacturers, for you to introduce, flame retardant treatment methods in building materials.
1. Add flame retardant
Add flame retardants and inorganic fillers in the plastic, so that the combustion characteristics of plastic products are good. Commonly used inorganic flame retardants are aluminum hydroxide, magnesium hydroxide, magnesium carbonate, zinc borate, = two zinc oxide; organic flame retardants are chlorinated paraffin, hexabromobenzene, decabromodiphenyl ether and so on. Fillers include calcium carbonate, talc, perlite powder, vermiculite powder, clay, etc. In order to make the resin and inorganic flame retardant good fusion, the inorganic flame retardant, inorganic filler surface treatment. Commonly used surface treatment agents are silicone, paraffin, etc.
2. Blending
In all plastic resins, halogen-containing polymers are generally non-flammable, because hydrogen halides have the effect of capturing [OH]-to generate H 2O and reducing [OH]-in the combustion process, making it difficult to burn. If a resin having poor flame retardancy is blended with a halogen resin, better flame retardancy than the original resin is obtained.
3. Grafting
Graft copolymerization of monomers with good flame retardancy is widely used in base polymers. For example, when ABS resin is grafted with vinyl chloride monomer and the vinyl chloride content reaches a certain amount, it has good flame retardant performance. The reaction of tetrabromobisphenol A with epoxy resin can produce tetrabromobisphenol A diglycidyl ether epoxy resin with halogen content of 16%-50%. The higher the bromine content, the better the flame retardancy. Tetrabromobisphenol A added too much, will make the electrical and mechanical properties of the product decreased, often the brominated epoxy resin with other epoxy resin, so that the electrical and mechanical properties of the resin is not too much decline. In order to compensate for the deterioration of the flame retardant characteristics, a flame retardant such as antimony trihydride or aluminum hydroxide may be appropriately added.
The fire prevention task of building materials is very heavy, and the flame retardant must be added. The specific adding method should be determined according to the performance and requirements of the material.
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
Sales Department Telephone:15905609730
Ministry of Foreign Trade Telephone:13956052398
Comprehensive department Telephone:0551-67712199
Company headquarters address: Hefei Feidong Economic Development Zone Xianghe Road 36
E-mail:hefei@zkxcl.com
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