The mechanical strength of aluminum hydroxide in the addition of aluminum hydroxide to the thermoplastic, especially the impact strength, causes a decrease, although the use of coupling agents to strive to improve the strength, but still no significant enhancement, so more than 95% For thermosetting plastics. The following details:
1. The application of unsaturated polyester
In the glass fiber reinforced unsaturated polyester casting plastic (such as a variety of high or low voltage electrical switch), aluminum hydroxide is used as a filler, so that plastic products with fire resistance, smoke and anti-arc. Aluminum hydroxide is also used in laminated bodies, such as glass fiber reinforced plastic tile, pipe, storage tank, etc., has a good flame retardant effect.
2. The application of epoxy resin
In the epoxy resin, aluminum hydroxide has a special effect of flame retardant, the amount of 40% to 60%, oxygen index than the non-filled epoxy resin twice as high, Enhanced arc resistance and arc resistance. Aluminum hydroxide filled with epoxy resin in the production of transformers, insulation equipment, switching devices and other aspects of the future is very bright.
3. Cross-linked polyethylene cable in the application
Among these polymers, alumina has been filled to improve the flame retardancy and has excellent electrical insulating properties, and thus has been widely used.
4. Latex and adhesive applications
Carpet liner latex rubber and carboxylated latex adhesive is the earliest market for aluminum hydroxide, and this consumption is still leading the way. It is also used in pre-coating, adhesives and foam materials instead of flame retardant capacity of calcium carbonate and clay as a flame retardant filler. Typically, 100 parts of latex are added with 20 to 150 parts of aluminum hydroxide having a particle size of 3 to 20 m, and 75 to 250 parts of the binder is added. It is estimated that the future latex precipitation is still the largest consumer of aluminum hydroxide.
5. The application of PVC
Aluminum hydroxide in the thermoplastic research is the most areas of polyvinyl chloride. Aluminum hydroxide can replace calcium carbonate filler very easily into the plasticized PVC. There are two ways to achieve high standards of flame retardancy: one is aluminum hydroxide and phosphorus carboxyl ester plasticizer and another method is to use aluminum hydroxide and zinc borate, these formulations have been applied to PVC wire Cable material. The addition of aluminum hydroxide to the hard polyvinyl chloride is mainly due to smoke elimination.
6. Polyethylene, polystyrene, ABS and other thermoplastic applications
Aluminum hydroxide has been used in flame-retardant decorative calcium-plastic panels, and achieved good results. However, in these thermoplastic, aluminum hydroxide alone when the amount of added must be more than 60% to show a certain degree of flame resistance, and then the impact resistance of plastic will be seriously affected. So far so far the application of aluminum hydroxide in these thermoplastics is still continuing to study the subject.
7. Synthetic rubber in the application
In the category of styrene butadiene rubber, neoprene in this type of synthetic rubber aluminum hydroxide to make a very good flame retardant, such as flame retardant cable jacket formula: neoprene 100, 70 parts of clay, 30 parts of calcium carbonate, 100 parts of aluminum hydroxide, 15 parts of zinc borate, 10 parts of antimony trioxide, 5 parts of zinc oxide, 4 parts of magnesium oxide, 5 parts of isocyanurate, Na-220.5 parts and 2 parts of stearic acid. The resulting product has an oxygen index of 50, excellent in vertical and horizontal flammability.
1. The application of unsaturated polyester
In the glass fiber reinforced unsaturated polyester casting plastic (such as a variety of high or low voltage electrical switch), aluminum hydroxide is used as a filler, so that plastic products with fire resistance, smoke and anti-arc. Aluminum hydroxide is also used in laminated bodies, such as glass fiber reinforced plastic tile, pipe, storage tank, etc., has a good flame retardant effect.
2. The application of epoxy resin
In the epoxy resin, aluminum hydroxide has a special effect of flame retardant, the amount of 40% to 60%, oxygen index than the non-filled epoxy resin twice as high, Enhanced arc resistance and arc resistance. Aluminum hydroxide filled with epoxy resin in the production of transformers, insulation equipment, switching devices and other aspects of the future is very bright.
3. Cross-linked polyethylene cable in the application
Among these polymers, alumina has been filled to improve the flame retardancy and has excellent electrical insulating properties, and thus has been widely used.
4. Latex and adhesive applications
Carpet liner latex rubber and carboxylated latex adhesive is the earliest market for aluminum hydroxide, and this consumption is still leading the way. It is also used in pre-coating, adhesives and foam materials instead of flame retardant capacity of calcium carbonate and clay as a flame retardant filler. Typically, 100 parts of latex are added with 20 to 150 parts of aluminum hydroxide having a particle size of 3 to 20 m, and 75 to 250 parts of the binder is added. It is estimated that the future latex precipitation is still the largest consumer of aluminum hydroxide.
5. The application of PVC
Aluminum hydroxide in the thermoplastic research is the most areas of polyvinyl chloride. Aluminum hydroxide can replace calcium carbonate filler very easily into the plasticized PVC. There are two ways to achieve high standards of flame retardancy: one is aluminum hydroxide and phosphorus carboxyl ester plasticizer and another method is to use aluminum hydroxide and zinc borate, these formulations have been applied to PVC wire Cable material. The addition of aluminum hydroxide to the hard polyvinyl chloride is mainly due to smoke elimination.
6. Polyethylene, polystyrene, ABS and other thermoplastic applications
Aluminum hydroxide has been used in flame-retardant decorative calcium-plastic panels, and achieved good results. However, in these thermoplastic, aluminum hydroxide alone when the amount of added must be more than 60% to show a certain degree of flame resistance, and then the impact resistance of plastic will be seriously affected. So far so far the application of aluminum hydroxide in these thermoplastics is still continuing to study the subject.
7. Synthetic rubber in the application
In the category of styrene butadiene rubber, neoprene in this type of synthetic rubber aluminum hydroxide to make a very good flame retardant, such as flame retardant cable jacket formula: neoprene 100, 70 parts of clay, 30 parts of calcium carbonate, 100 parts of aluminum hydroxide, 15 parts of zinc borate, 10 parts of antimony trioxide, 5 parts of zinc oxide, 4 parts of magnesium oxide, 5 parts of isocyanurate, Na-220.5 parts and 2 parts of stearic acid. The resulting product has an oxygen index of 50, excellent in vertical and horizontal flammability.