Preparation method and application method of modified microparticles for wood welding combination
A technology of modification of micron particles, applied in wood treatment, impregnation of wood, wood impregnation, etc., can solve the problems of brittle interface, poor water resistance and durability, and insufficient mechanical properties, so as to achieve improved water resistance, increased durability, The effect of improving the mechanical properties
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specific Embodiment 1
[0028] A method for preparing modified micron particles for wood welding, comprising the following steps:
[0029] S01, put the ethanol solution, tetraethyl orthosilicate and ammonia solution into the stirring reactor for stirring reaction, after a period of time, vacuum filter out the silicon dioxide particles. Wherein, the volume concentration of ethanol solution is 95%, and the volume is 100cm 3 , the volume of tetraethyl orthosilicate is 34cm 3 , the mass fraction of ammonia solution is 25%, and the volume is 22cm 3 , the stirring rate of the stirred reactor was 1800 revolutions per minute, and the stirring reaction time was 60 min.
[0030] S02, use ethanol to ultrasonically wash the silicon dioxide particles obtained in S01, the number of times of ultrasonic washing is 3 times, then perform vacuum filtration, then use pure water to wash the silicon dioxide particles, and finally perform suction filtration.
[0031] S03 is dried after suction filtration, the drying tem...
specific Embodiment 2
[0043] This embodiment is the same as Embodiment 1, except that in S15 wood welding is combined with rotational friction welding. Sand the surface of the beech log tenon to be welded with 100-mesh sandpaper, then heat the sanded round tenon to 80°C by microwave, and immediately immerse it in the modification solution at 2°C while maintaining 80°C , the treatment time is 15 minutes, and then the round wooden tenons are taken out and dried at 50°C for 2 hours.
[0044] First, reserve a reserved hole with a diameter of 8mm on the masson pine wood member to be welded, with a depth of 30mm, and the welding direction is perpendicular to the direction of the wood fiber, and then weld the bamboo tenon into the reserved hole at a speed of 12mm / s, and the feeding time It is 2.5s, and the rotation speed is 1800r / min. When the bamboo tenon touches the bottom of the reserved hole, stop the rotation, keep the pressure for 45 seconds, and then cut off the round wooden tenon exposed on the s...
specific Embodiment 3
[0047] A method for preparing modified micron particles for wood welding, comprising the following steps:
[0048] S01, put the ethanol solution, tetraethyl orthosilicate and ammonia solution into the stirring reactor for stirring reaction, after a period of time, vacuum filter out the silicon dioxide particles. Wherein, the volume concentration of ethanol solution is 95%, and the volume is 90cm 3 , the volume of tetraethyl orthosilicate is 32cm 3 , the mass fraction of ammonia solution is 25%, and the volume is 20cm 3 , the stirring rate of the stirred reactor was 1600 rpm, and the stirring reaction time was 50 min.
[0049] S02, use ethanol to ultrasonically wash the silicon dioxide particles obtained in S01, the number of times of ultrasonic washing is 2 times, then perform vacuum filtration, then use pure water to wash the silicon dioxide particles, and finally perform suction filtration.
[0050] S03 is dried after suction filtration, the drying temperature is 100° C.,...
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