Compression-resistant and wear-resistant HDPE double-wall corrugated pipe
A double-wall corrugated pipe, corrugated pipe technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of improving the high temperature resistance performance of corrugated pipes, adding a large amount of high temperature resistant fillers, and reducing high temperature resistance performance. , to achieve the effect of improving aging resistance, improving dispersion performance, and improving high temperature resistance
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Embodiment 1
[0018] The specific preparation process of high temperature resistant dyeing agent is as follows:
[0019] Step 1, add 10g vinyltriethoxysilane and 90mL pyridine to the reaction vessel at the same time, add 8.3g peracetic acid and 15.4g sodium carbonate to it at the same time, stir and react for 6-7h at room temperature, then add the reaction product to the acrylic acid In alcohol, after stirring and mixing, filter, remove the sodium carbonate therein, and then carry out vacuum distillation to the filtrate to obtain epoxytriethoxysilane;
[0020] Step 2, add 10g of Direct Black 19 and 100mL of water into the reaction vessel at the same time, first stir until Direct Black 19 dissolves, then add 15.6g of epoxytriethoxysilane prepared in step 1 to the reaction vessel, and heat up to 60 Reflux at -70°C for 3-4 hours, then evaporate to remove the solvent water, and obtain black gray powder;
[0021] Step 3, add 70mL of acetone to the reaction vessel, stir and mix evenly, then drop...
Embodiment 2
[0023] The specific preparation process of high temperature resistant dyeing agent is as follows:
[0024] Step 1, add 10g vinyltriethoxysilane and 90mL pyridine to the reaction vessel at the same time, add 8.3g peracetic acid and 15.4g sodium carbonate to it at the same time, stir and react for 6-7h at room temperature, then add the reaction product to the acrylic acid In alcohol, after stirring and mixing, filter, remove the sodium carbonate therein, and then carry out vacuum distillation to the filtrate to obtain epoxytriethoxysilane;
[0025] Step 2, add 10g of Direct Black 19 and 100mL of water into the reaction vessel at the same time, first stir until Direct Black 19 dissolves, then add 15.6g of epoxytriethoxysilane prepared in step 1 to the reaction vessel, and heat up to 60 Reflux at -70°C for 3-4 hours, then evaporate to remove the solvent water, and obtain a black-gray powder, which is a high-temperature-resistant dye.
Embodiment 3
[0027] The specific preparation process of fluorinated phenolic antiaging agent is as follows:
[0028]①Add 11.35g of salicylaldehyde into 150mL of diethyl ether and mix well, then add 21g of trifluoroacetic anhydride and 13.6g of sodium trifluoroacetate, raise the temperature to 80-85°C and stir for 10-12h, then carry out the obtained product Underpressure distillation removes unreacted salicylaldehyde and trifluoroacid generated therein to obtain fluorinated phenol;
[0029] ②Put 10g of the obtained fluorinated phenol and 80mL ether into the reaction vessel at the same time, stir to dissolve, and at the same time, continue to pass nitrogen gas into the reaction vessel for 20-30min, then add 6.7g of benzoyl peroxide to it, and heat up to 90-95 Stir and react for 60-70min at ℃, then raise the temperature to 120-130℃ and reflux for 2-3h, then evaporate and remove the solvent therein to obtain a fluorinated phenolic anti-aging agent.
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