测定了胶原蛋白改性聚乳酸的水接触角和吸水率，结果表明胶原蛋白改性聚乳酸的亲水性明显高于聚乳酸。
The measurement of water contact angle and water absorption ratio of collagen-modified PLLA indicated that the hydrophilicity of collagen-modified PLLA was better than that of PLLA.
测定了胶原蛋白改性聚乳酸的水接触角和吸水率，结果表明胶原蛋白改性聚乳酸的亲水性明显高于聚乳酸。
The measurement of water contact angle and water absorption ratio of collagen-modified PLLA indicated that the hydrophilicity of collagen-modified PLLA was better than that of PLLA.
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