Yantai Aiful Flame Retardant Technology Co., Ltd.

Aluminum hydroxide flame retardant
--- --->Aluminum hydroxide is an ideal flame retardant filler for plastics and organic polymers. Because aluminum hydroxide is a white powder, its physical and chemical properties are stable, it does not absorb moisture, its particle size can be processed as needed, it is non-toxic and harmless, and its whiteness does not change when matured. It has three major functions: filling, flame retardant and smoke elimination. When plastic or polymer burns in contact with an external heat source, it can be divided into the following
--- ---> and used as a flame retardant filler
--- ---> stages:< br/> --- --->Heating
--- --->Decomposition
--- --->Fire
--- --->Combustion
--- --->Spread. The principle of action of all flame retardants is to achieve the purpose of flame retardancy by inhibiting one or several of the above-mentioned combustion stages. For aluminum hydroxide. It mainly works in the two stages of heating and decomposition. When the heating temperature exceeds
--- --->℃, aluminum hydroxide begins to endothermically decompose and release three crystal waters. This reaction is a strong endothermic reaction. When decomposition per gram
--- --->endotherm reaches
--- ---> and in
--- ---> The decomposition rate is maximum between ~
--- --->℃
---- --> and this temperature range is the decomposition temperature of most polymers. It is based on the fact that aluminum hydroxide absorbs a lot of heat when it decomposes. Therefore, when a polymer containing aluminum hydroxide is heated, aluminum hydroxide decomposes and absorbs heat, thereby inhibiting the increase in polymer temperature and reducing its decomposition rate. Secondly, aluminum hydroxide releases water vapor when it is thermally decomposed and will not be toxic, flammable or corrosive. The highly toxic gas also dilutes the various flammable gases produced by the decomposition of the polymer, making it more difficult to start a fire. The flame retardant properties of synthetic materials are closely related to the particle size of the filler aluminum hydroxide. As the particle size becomes smaller, the oxygen limiting index increases. Secondly, the refinement of fillers also helps to improve the smoothness and mechanical properties of synthetic materials. The content of alkali and iron oxide can improve the insulation properties of the material. This is particularly important in cable sheaths and low-voltage electrical switch products. The series of synthetic material polymers using aluminum hydroxide as filler include polyester, epoxy, phenolic, polypropylene, polyethylene, polyvinyl chloride, butyraldehyde rubber, chloroprene rubber, silicone rubber, etc.
-- -- -->, used as filler for carpet backing latex foam and adhesive
--- --->The application of aluminum hydroxide in the carpet industry mainly utilizes hydroxide Flame retardant filling properties of aluminum. There are two types of latex in the carpet industry: binder and foam. Carboxylated latex coating is a binder. It is used to bond and secure carpet fibers wrapped around a mesh backing while latex foam is applied to the carpet surface to achieve the required thickness. The curing is completed in the oven of
--- --->~
--- --->℃
---- -->. Usually the ingredient ratio of the binder is
--- ---> parts latex to
--- --->~
--- ---> parts aluminum hydroxide and The ingredient ratio in the foam is
--- --->parts of latex to
--- --->~
--- --->parts of aluminum hydroxide. Generally, the aluminum hydroxide used in carpets is
d
--- --->fine-grained aluminum hydroxide.
-- -- -->, used as filler for artificial marble and artificial agate
--- --->Use aluminum hydroxide and unsaturated polyester resin or methacrylic resin to produce artificial Onyx or artificial marble. Since lead hydroxide has
(
--- --->the refractive index is
--- --->
)
--- --- >The refractive index is very close to that of polyester resin, so that artificial products have translucent and satisfactory light visibility. And can produce artificial products with different colors and patterns. Artificial products have many advantages over natural products: low cost, light weight, and not easily brittle. It can be made into products of various colors and specifications, so artificial marble is widely used in high-end sanitary ware, kitchen decoration, conference tabletops, boards, decorative boards, etc. Aluminum hydroxide, usually used in the production of artificial agate and artificial marble, has high self-density
(
--- --->%
)
--- ---> Characteristics of good crystal form and moderate particle size
(d=
--- --->or
)
--- --->.
-- -- -->, used as filler in paper making
--- --->Aluminum hydroxide is mainly used as surface coating, filler and in the production of non-combustible paper in the paper industry. In foreign countries, aluminum hydroxide has been developed and used as a coating pigment as early as the 1940s and 1950s, but it is still rarely used in our country. Aluminum hydroxide has many advantages as a coating pigment: high degree of self-density, fine particle size and uniform particle size distribution in the form of flaky crystals. Using it as a pigment can improve the self-density of coated paper. Opacity, smoothness and ink absorption properties. Use it instead of titanium dioxide. It can save costs, improve the gloss of the finished paper and improve the printing performance without reducing the degree and opacity of the paper. Due to the fine particle size and uniform distribution of aluminum hydroxide, less wear can extend the service life of the scraper. Usually aluminum hydroxide particle size for papermaking
--- --->Whiteness
--- --->% .
-- -- -->, used as toothpaste filler
--- --->The main purpose of toothpaste is to remove dirt adhered to teeth. No damage to gums. This requires a neutral friction agent. The mild abrasive properties of aluminum hydroxide meet this requirement to clean and polish teeth. And its chemical inertness makes it easy to be compatible with other ingredients in toothpaste. Furthermore, aluminum hydroxide has good fluorine retention properties, so aluminum hydroxide is widely used in medicated toothpastes and other high-end toothpastes. The particle size of aluminum hydroxide used as a toothpaste filler is generally
=
--- --->It is a grinding product produced by a jet mill or rod mill. Its attached alkali must be less than
--- --->
--- --->% or maintain a certain
--- ---> value to prevent The toothpaste coating is corroded.
-- -- -->, packaging, transportation, storage
--- --->Packaging: Net weight of each bag with inner plastic and outer braided film
--- --- > or
--- --->.
--- --->Transportation: This product is a non-dangerous product and should be protected from moisture, rain and packaging damage during transportation.
--- --->Storage: Store in a dry and ventilated warehouse.