When gelatin content is less than 5%, blending films not only retains a good mechanical property, but also improves the hydrophilicity of PLLA.
共混膜中混入的明胶含量在5%以内时，在保持聚乳酸力学性能的同时，可以降低聚乳酸的接触角，改善聚乳酸的亲水性。
Alternating between physical and mental activities helps, too, as does increasing the novelty of lessons by blending films, tapes, flash CARDS, and group work.
脑力和体力活动的交替进行也颇为有效，例如课堂上放电影、磁带、教学卡片，以及让孩子加入小组活动等。
Besides, Blending, chemical reaction and physical treatment are important ways to change the properties of films.
此外，共混、化学改性和物理处理也是改变壳聚糖膜性质便捷、重要的方法。
The polyimide nano-composite films with different concentrations of carbon nano-tube were prepared by means of ultrasonic blending and in- situ polymerization.
以超声分散塬位聚合的方法制备出不同碳纳米管含量的碳纳米管，聚酰亚胺功能复合材料膜。
The polyimide nano-composite films with different concentrations of carbon nano-tube were prepared by means of ultrasonic blending and in- situ polymerization.
以超声分散塬位聚合的方法制备出不同碳纳米管含量的碳纳米管，聚酰亚胺功能复合材料膜。
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