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发明公开
CN103951950A 柔性生物可降解复合材料 有权

柔性生物可降解复合材料
摘要：
本发明公开了一种生物可降解复合材料，由高分子量的基体材料和低分子量的增柔剂共混而成，其中增柔剂为聚乳酸-聚乙二醇共聚物，增柔剂中聚乙二醇的含量在35～50wt％之间，聚乳酸的含量在50～65wt％之间；增柔剂在复合材料中的含量在45～50wt％之间，基体聚合物在复合材料中的含量在50～55wt％之间。由该生物可降解复合材料制备的医用防粘连膜兼有良好柔性和合适的生物可降解性能。
摘要（英）：

The invention discloses a biodegradable composite material which is co-mixed by a base material with high molecular weight and a flexibilizer with low molecular weight, wherein the flexibilizer is a polylactic acid-polyethylene glycol copolymer, the content of polyethylene glycol in the flexibilizer is 35-50wt% and the content of polylactic acid is ranged from 50wt% to 65wt%. The content of the flexibilizer in the composite material is ranged from 45wt% to 50wt%, and the content of the base body copolymer in the composite material is ranged from 50wt% to 55wt%. A medical anti-adhesion membrane prepared by the biodegradable composite material has good flexibility and proper biodegradability.

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