A kind of thermoforming visible light catalyst wood-plastic composite board and its preparation method
A technology of hot pressing and visible light, which is applied in the field of wood-plastic composite materials and its preparation, can solve the problems that the photocatalytic degradation effect is not necessarily good, and the film-forming performance of the photocatalyst is not necessarily good, so as to achieve broad economic prospects and social benefits. The process is simple and reasonable, and the effect of improving the absorption rate
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Embodiment 1
[0021] A kind of preparation steps of thermocompression forming visible light catalyst PP wood-plastic composite board
[0022] Step 1: Photocatalyst activation treatment Put P25 titanium dioxide powder, diatomaceous earth, tin tetrachloride, absolute ethanol and deionized water in a mass ratio of 1:1:0.01:3:0.03 into the container, and heat up to 70°C , stirred at constant temperature for about 10 minutes, then added KH-550 silane coupling agent accounting for 5% of the photocatalyst mass fraction into the container, and dispersed with ultrasonic waves at intervals, reacted for 4 hours to obtain a sol, and then placed in a blast drying oven Dry at 110°C for 10 hours to obtain activated visible light catalyst rubber powder.
[0023] Step 2: Drying treatment of plant powder Place 100 parts of pine wood powder in a blast drying oven and dry at 105°C for 10 hours until the water mass fraction is <2% for later use;
[0024] Step 3: Mixing treatment Heat up the mixer to 190°C, the...
Embodiment 2
[0027] A preparation step of hot-pressed visible light catalyst PE wood-plastic composite board
[0028] Step 1: Photocatalyst activation treatment Put P25 titanium dioxide powder, diatomaceous earth, silver nitrate, absolute ethanol and deionized water into the container at a mass ratio of 1:1:0.01:3:0.03, raise the temperature to 80°C, and keep the temperature constant Stir for about 10 minutes, then add KH-570 silane coupling agent accounting for 5% of the photocatalyst mass fraction into the container, and disperse it with ultrasonic waves at intervals, react for 4 hours to obtain a sol, and then place it in a blast drying oven at 110°C , dried for 10 hours to obtain activated visible light catalyst rubber powder.
[0029] Step 2: Drying treatment of plant powder Put 80 parts of rice stalk powder in a blast drying oven and dry at 105°C for 10 hours until the water mass fraction is less than 2% for later use;
[0030] Step 3: Mixing treatment Raise the temperature of the m...
Embodiment 3
[0033] A kind of preparation steps of hot-pressed visible light catalyst PS bamboo-plastic composite board
[0034] Step 1: Photocatalyst activation treatment Put P25 titanium dioxide powder, diatomaceous earth, cerium nitrate, absolute ethanol and deionized water into the container at a mass ratio of 1:1:0.01:3:0.03, raise the temperature to 80°C, and keep the temperature constant Stir for about 10 minutes, then add KH-570 silane coupling agent accounting for 6% of the photocatalyst mass fraction into the container, and disperse it with ultrasonic waves at intervals, react for 4 hours to obtain a sol, and then place it in a blast drying oven at 110°C , dried for 10 hours to obtain activated visible light catalyst rubber powder.
[0035] Step 2: Drying treatment of plant powder Place 100 parts of bamboo powder in an air blast drying oven and dry at 105°C for 10 hours until the water mass fraction is <2% for later use;
[0036] Step 3: Mixing treatment Heat up the mixer to 170...
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