Nylon composite material used for selective laser sintering and preparation method thereof
A nylon composite material and laser sintering technology are applied in the field of preparation of the nylon composite material, which can solve problems such as restricting development, and achieve the effects of low cost, weight reduction, excellent mechanical properties and molding effect.
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[0024] Example 1
[0025] A. Surface treatment of hollow glass beads: 2500 grams of γ-aminopropyltriethoxysilane, ethanol, and distilled water are prepared at the mass fractions of 3%, 95%, and 2% respectively. Take 1000 grams of hollow glass beads, stir and mix them with the above solution, dry at room temperature for 2 days, and then at 65°C for 2 hours, then ball mill and sieve to obtain the hollow glass beads with organic surface treatment. Glass beads.
[0026] B. Blending: Weigh 300 grams of hollow glass beads obtained in step A, put them into a mechanical stirrer, and add 4700 grams of nylon 12 powder, 50 grams of flow aid, 30 grams of light absorbers and 30 grams of antioxidants , Stir the mixed materials evenly and sieving to obtain nylon composite powder material.
[0027] The nylon composite powder material obtained in step B is formed on the SLS forming equipment, and the preparation process parameters are: laser power 12W, scanning speed 2000mm / s, sintering distance 0....
Example Embodiment
[0028] Example 2
[0029] A. Surface treatment of hollow glass beads: 2500 grams of γ-aminopropyltriethoxysilane, ethanol, and distilled water are prepared at the mass fractions of 3%, 95%, and 2% respectively. Take 1000 grams of hollow glass beads, stir and mix them with the above solution, dry at room temperature for 2 days, and then at 65°C for 2 hours, then ball mill and sieve to obtain the hollow glass beads with organic surface treatment. Glass beads.
[0030] B. Blending: Weigh 400 grams of hollow glass beads obtained in step A, put them into a mechanical stirrer, and add 4600 grams of nylon 12 powder, 60 grams of flow aid, 35 grams of light absorbers and 35 grams of antioxidants , Stir the mixed materials evenly and sieving to obtain nylon composite powder material.
[0031] The nylon composite powder material obtained in step B is formed on the SLS forming equipment. The preparation process parameters are: laser power 12W, scanning speed 2000mm / s, sintering distance 0.1mm,...
Example Embodiment
[0032] Example 3
[0033] A. Surface treatment of hollow glass beads: 2500 grams of γ-aminopropyltriethoxysilane, ethanol, and distilled water are prepared at the mass fractions of 3%, 95%, and 2% respectively. Take 1000 grams of hollow glass beads, stir and mix them with the above solution, dry at room temperature for 2 days, and then at 65°C for 2 hours, then ball mill and sieve to obtain the hollow glass beads with organic surface treatment. Glass beads.
[0034] B. Blending: Weigh 500 grams of hollow glass beads obtained in step A, put them into a mechanical stirrer, and add 4700 grams of nylon 12 powder, 70 grams of flow aid, 40 grams of light absorbers and 40 grams of antioxidants , Stir the mixed materials evenly and sieving to obtain nylon composite powder material.
[0035] The nylon composite powder material obtained in step B is formed on the SLS forming equipment. The preparation process parameters are: laser power 12W, scanning speed 2000mm / s, sintering distance 0.1mm,...
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