Mesoporous calcium magnesium silicate/polylactic acid composite material as well as preparation method and use thereof
A technology of mesoporous calcium magnesium silicate and composite materials, which is applied in the field of mesoporous calcium magnesium silicate/polylactic acid composite materials and its preparation and application, can solve the problem that bone repair materials are difficult to have both biodegradable osseointegration effects and mechanical Performance and other issues, to achieve good biocompatibility and degradation performance, moderate mechanical properties
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[0028] Example 1
[0029] A preparation method of a mesoporous calcium magnesium silicate / polylactic acid composite material, comprising the following steps: drying 90 parts by weight of L-polylactic acid and 10 parts by weight of mesoporous calcium magnesium silicate at 90° C. for 6 hours , mix evenly in a high-speed mixer, and use an open mill for melt blending and molding; wherein, the opening temperature is 180 ° C, and the opening time is 15 minutes.
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[0030] Example 2
[0031] A preparation method of a mesoporous calcium magnesium silicate / polylactic acid composite material, comprising the following steps: drying 80 parts by weight of D-polylactic acid and 20 parts by weight of mesoporous calcium magnesium silicate at 120° C. for 6 hours , Mix evenly in a high-speed mixer, and use an internal mixer for melt blending and molding; wherein, the internal mixing temperature is 180 ° C, the mixing time is 10 minutes, and the speed of the internal mixer is 60 rpm.
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[0032] Example 3
[0033] A preparation method of mesoporous calcium magnesium silicate / polylactic acid composite material, comprising the following steps: drying 70 parts by weight of L-polylactic acid and 30 parts by weight of mesoporous calcium magnesium silicate at 100° C. for 6 hours , Mix evenly in a high-speed mixer, and use a twin-screw extruder for melt blending and molding; wherein, the barrel temperature of each section of the extruder is 140-200 ° C, and the speed of the extruder is 100 rpm.
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