Preparation method of polyamide composite material applied to oil pipeline

[0026] Example 1

[0027] A preparation method of polyamide composite material for oil pipeline, including the following steps:

[0028] (1) Sun-dried and crushed the earthen wattle bark, and sieved through a 200-300 mesh sieve to obtain the earthen wattle bark powder;

[0029] (2) Soak the wattle bark powder prepared above in a mixed aqueous solution of sodium citrate and hydrogen peroxide for 30 minutes, then sonicate for 30 minutes at a power of 500W, and finally undergo plasma treatment in the cavity of the oxygen plasma device to obtain Pre-treated soil wattle bark powder;

[0030] Among them, the mass concentration of sodium citrate in the mixed aqueous solution is 30%, and the mass concentration of hydrogen peroxide is 45%; the dosage ratio of the mixed aqueous solution of wattle bark powder and sodium citrate and hydrogen peroxide is 1g:70mL;

[0031] (3) Disperse the pretreated earthen bark powder prepared above in an organic solvent, add hexafluorobutyl methacrylate after heatin

[0037] Example 2

[0038] A preparation method of polyamide composite material for oil pipeline, including the following steps:

[0039] (1) Sun-dried and crushed the earthen wattle bark, and sieved through a 200-300 mesh sieve to obtain the earthen wattle bark powder;

[0040] (2) Soak the wattle bark powder prepared above in a mixed aqueous solution of sodium citrate and hydrogen peroxide for 30 minutes, then sonicate for 30 minutes at a power of 500W, and finally undergo plasma treatment in the cavity of the oxygen plasma device to obtain Pre-treated soil wattle bark powder;

[0041] Among them, the mass concentration of sodium citrate in the mixed aqueous solution is 30%, and the mass concentration of hydrogen peroxide is 45%; the dosage ratio of the mixed aqueous solution of wattle bark powder and sodium citrate and hydrogen peroxide is 1g:100mL;

[0042] (3) Disperse the pretreated earthen bark powder prepared above in an organic solvent, add hexafluorobutyl methacrylate after heati

[0048] Example 3

[0049] A preparation method of polyamide composite material for oil pipeline, including the following steps:

[0050] (1) Sun-dried and pulverized soil wattle bark, and passed through a 200-300 mesh sieve to obtain soil wattle bark powder;

[0051] (2) Soak the wattle bark powder obtained above in a mixed aqueous solution of sodium citrate and hydrogen peroxide for 30 minutes, then ultrasonicate for 30 minutes at a power of 500W, and finally plasma treatment in the cavity of the oxygen plasma device to obtain Pre-treated soil wattle bark powder;

[0052] Among them, the mass concentration of sodium citrate in the mixed aqueous solution is 30%, and the mass concentration of hydrogen peroxide is 45%; the dosage ratio of the mixed aqueous solution of wattle bark powder and sodium citrate and hydrogen peroxide is 1g:80mL;

[0053] (3) Disperse the pretreated earthen bark powder prepared above in an organic solvent, add hexafluorobutyl methacrylate after the temperature is r