岑少飞;张咏;张凤;

• 1:广西城市职业大学
• 2:广西工业职业技术学院

摘要(Abstract)：

为制备力学性能好、高隔热性和高透光性的复合薄膜,本实验通过微纳层共挤技术,经层叠装置得到多层聚碳酸酯/聚甲基丙烯酸甲酯(PC/PMMA)光学薄膜,并对其最佳厚度值、流动和微观形态、力学性能和光学性能进行测试。结果表明:挤出温度应控制在245～260℃,两种聚合物的熔体流动速率基本相同;200μm厚度的复合薄膜平均反射率和平均透过率最高,可分别达到24.2%和82.2%。通过断面SEM分析发现:PC和PMMA两种物料层叠效果好,达到实验预期目的。加入PC后,复合薄膜的TD和MD方向上的拉伸强度和断裂伸长率均呈现较大幅度提升,说明PC形成多层复合薄膜能够显著改善PMMA力学性能。光学性能测试发现:近红外区域,PC/PMMA复合薄膜的反射率明显优于单一薄膜,200μm厚度的复合薄膜反射近红外区域的最大反射率为25.7%,平均反射率可达24%,改善光学性能效果最好。

关键词(KeyWords)： 微纳层共挤技术;光学薄膜;力学性能;光学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 岑少飞;张咏;张凤;

DOI: 10.15925/j.cnki.issn1005-3360.2021.08.012

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