Air sand and preparation method thereof

Abstract

Its preparation methods include the following steps: (1) Use silicon dioxide as the main body, burn the shell powder as the molecular structure connection carrier, polyethylene glycol, polyethylene glycol, and foam powder K12 as the reaction element, and add the heating reaction to the heating can be added togetherIn the kettle; (2) Stir at a constant speed of the speed at 25 / minute reaction kettle; (3) the heating to make the reaction element fully reacts with the silicon dioxide and the burnt shell powderAfter that, the heating is continuously mixed; (5) Add about 70%of the concentration of propylene glycol solution, stir and mix, and adjust the speed of the reactor to 20 rpm; (6) reduce the temperature and add glycerin, and adjust the speed of the reaction kettle to 40 rpm / minute;(7) The product is completed for 10 minutes.This method has the characteristics of reasonable process and high product revenue.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to air sand which has antibacterial and bactericidal functions and a preparation method thereof. Background technique [0002] Children like to play with sand. Every time they play in the sand, they will forget the time. Some kindergartens have specially prepared sand venues for children. It is in line with their cognitive development that children like to play with sand. Moreover, playing with sand helps to strengthen children's perception, develops children's imagination, and helps children's fine motor development. The most common composition of sand is silicon dioxide, usually in the form of quartz. Because of its stable chemical properties, hard texture, high specific gravity, and easy breeding of harmful substances such as bacteria, its single molecular structure makes its plasticity and safety unable to be guaranteed. At present, the most high-grade Korean air sand in the...

AI Technical Summary

Problems solved by technology

Moreover, playing with sand helps to strengthen children's perception, develops children's imagination, and helps children's fine motor development. The most common composition of sand is silicon dioxide, usually in the form of quartz. Because of its stable chemical properties, hard texture, high specific gravity, and easy breeding of harmful substances such as bacteria, its single molecular structure makes its plasticity and safety unable to be guaranteed. At present, the most high-grade Korean air sand in the world is Korean air sand, which can be used in various shapes Molds are free to create, you can also use your imagination to conceive works, reuse, non-toxic and harmless, and free to shape, but there are also certain defects. For example, Korean air sand loses sand fluidity and looseness, and forms a hardened plate after being stepped on. It seems that ordinary river sand sinks after absorbing water, and it is difficult to shovel the hardened sand with the strength of children. The cost makes the price too high, and the purchasing power of ordinary families is limited.