A kind of rat hole plugging glue and preparation method thereof
A technology of clay and rat holes, applied in the field of materials, can solve the problems of rats biting strongly and rats destroying power station equipment, etc., and achieve good sealing performance, avoid rat damage, and good protection effect
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preparation example Construction
[0078] In a second aspect, the application provides a method for preparing a rat hole plugging cement, the method comprising:
[0079] The first step is to prepare the A component:
[0080] A1, in the dehydrated polyether polyol, optionally, an auxiliary agent can be added, and isocyanate can be added to obtain a first mixed system, and the first mixed system is heated and reacted to obtain a prepolymer;
[0081] A2, at high temperature, dehydrate the solid filler to obtain dehydrated solid filler;
[0082] A3, mixing the prepolymer, the dehydrating filler, the hydroxyl surface-modified paraffin and the thickening agent, and stirring to obtain a mastic-like group A;
[0083] The second step is to prepare component B:
[0084] B1, under the condition of negative pressure, heat and dehydrate the second mixed system mixed by polyether polyol, catalyst and chain extender, optionally, also add auxiliary agent to the second mixed system to obtain B component semi-finished products;...
preparation example 1
[0094] Take 20g of paraffin and heat it to above 60°C, liquefy the paraffin, put it into 50mL of 20wt% hydrogen peroxide, stir and react at 40°C for 15min, quickly transfer it to an ice-water bath and cool to room temperature, the paraffin is condensed into particles, filtered, washed with water until neutral, and then The modified paraffin wax 1 was obtained by placing the paraffin wax modified by the surface hydroxyl group in a vacuum drying oven at 25-30° C. and drying. After testing, the number of hydroxyl groups on the surface of the modified paraffin wax obtained was 0.132 mmol / g.
preparation example 2
[0096] The operation of this example is similar to that of Example 1, except that the concentration of hydrogen peroxide is 15%wt, the reaction temperature is 60°C, and the reaction time is 5min to obtain modified paraffin 2, and the number of surface hydroxyl groups of the obtained modified paraffin 2 is 0.164 mmol / g.
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