Preparation method for ammonium aluminum carbonate hydroxide fiber with high length-diameter ratio

Abstract

The invention discloses a preparation method for an ammonium aluminum carbonate hydroxide fiber with a high length-diameter ratio. The preparation method comprises the following steps: (1) measuring distilled water with a measuring cylinder, adding the distilled water into a beaker and carrying out heating to a temperature of 60 to 80 DEG C in a in water bath; (2) measuring distilled water with a transfer pipette, adding the distilled water into another beaker, carrying out magnetic stirring, weighing aluminum nitrate and urea, adding weighed aluminum nitrate and urea into the beaker and allowing aluminum nitrate and urea to be completely dissolved so as to obtain a component A; (3) measuring a part of distilled water in a water-bath kettle with the transfer pipette, adding the distilled water into a small beaker, adding a surfactant and carrying out uniform mixing under stirring so as to obtain a component B; (4) slowly adding the component B into the component A and carrying out uniform mixing under magnetic stirring; (5) pouring a mixed liquid obtained in the step (4) into a hydro-thermal reaction vessel so as to obtain a white precipitate; and (6) washing the white precipitate with distilled water and absolute ethyl alcohol a plurality of times and successively carrying out ultrasonic treatment, pumping filtration, drying and grinding so as to obtain the ammonium aluminum carbonate hydroxide fiber with a high length-diameter ratio. The prepared ammonium aluminum carbonate hydroxide fiber has the advantages of no corrosion, low viscosity, combustion resistance, environment friendliness, easy dispersion in a solution and a high length-diameter ratio.

Description

technical field [0001] The present invention relates to a preparation method of aluminum ammonium carbonate fiber with high aspect ratio, in particular to a high aspect ratio aluminum ammonium carbonate product which has corrosion resistance, low viscosity, flame resistance, environmental protection and is easy to disperse in solution Methods of making fibers. Background technique [0002] Among all kinds of disasters, fire is one of the main disasters that most frequently and commonly threatens public safety and social development, and poses a great threat to people's lives and property. If some flame-retardant materials can be added to daily life protection measures, it will Greatly reduces the threat. Fire retardant material is a kind of protective material. It is a material that can prevent burning and is not easy to burn. If a flame retardant is coated on the surface of various materials such as fire walls, it can ensure that it will not be burned in the event of a fir...

AI Technical Summary

Problems solved by technology

In the flame retardant of high polymers (various plastics including engineering plastics) in China, additive brominated flame retardants with low consumption, high flame retardant efficiency and wide adaptability are mainly used, but this kind of flame retardants A large amount of smoke and toxic and corrosive gases are generated during combustion, causing harm to the human respiratory tract and other human organs.

[0003] Ammonium aluminum carbonate has not been used as a flame retardant material so far. Because ammonium aluminum carbonate absorbs a large amount of heat when heated, it decomposes to generate non-combustible gases such as ammonia, water vapor, and carbon dioxide, thereby diluting the flammable gas to achieve the purpose of flame retardancy.