Preparation and Properties Research of PLLA/SiO2 Super-hydrophobic Materials

Tao CHEN; Sheng-du YANG; Liang-liang LI; Yao-zhu TIAN

doi:10.14028/j.cnki.1003-3726.2020.07.007

您当前的位置：

首页 >

文章列表页 >

Preparation and Properties Research of PLLA/SiO2 Super-hydrophobic Materials

更新时间：2022-08-31

- Preparation and Properties Research of PLLA/SiO2 Super-hydrophobic Materials
- Polymer Bulletin Vol. 33, Issue 7, Pages: 53-59(2020)
- 作者机构：
  
  贵州大学材料与冶金学院,贵阳 550025
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2020.07.007
  CLC：
- Published：20 July 2020，
  
  Received：25 November 2019，
  
  Revised：09 June 2020，
扫描看全文
Tao CHEN, Sheng-du YANG, Liang-liang LI, Yao-zhu TIAN. Preparation and Properties Research of PLLA/SiO2 Super-hydrophobic Materials. [J]. Polymer Bulletin 33(7):53-59(2020)
DOI：

Tao CHEN, Sheng-du YANG, Liang-liang LI, Yao-zhu TIAN. Preparation and Properties Research of PLLA/SiO2 Super-hydrophobic Materials. [J]. Polymer Bulletin 33(7):53-59(2020) DOI： 10.14028/j.cnki.1003-3726.2020.07.007.

摘要

本研究采用硅烷偶联剂KH570化学接枝与硬脂酸(SA)物理包覆相结合的方法对纳米二氧化硅(SiO

)进行有效改性

得到具有一定疏水效果并能在聚合物基体中有效分散的纳米填料

以聚乳酸(PLLA)为聚合物基体

通过非溶剂诱导相分离法制得了超疏水PLLA/SiO

复合膜

其表观接触角由纯PLLA 的120°提高到153°。研究还发现

填料含量不同

基体的结晶性能也不同

随着改性纳米SiO

填料含量的增加

膜的结晶度从9.8%提高到17.19%

结晶度对材料表面粗糙结构的构建有重要作用

粗糙结构有助于表面疏水性能的提升。

Abstract

Based on the KH570 chemical grafting and SA physical coating method of combining the modified nano silica (SiO

) effectively

get a hydrophobic effect and can effectively dispersed nano filler in the polymer matrix

polylactic acid (PLLA) as polymer matrix

passed the non-solvent induced phase separation method preparation of super-hydrophobic PLLA/SiO

composite films

the apparent contact Angle from pure PLLA 120° to 153°. The study also found that the crystallization properties of the matrix were different with the different filler contents. With the increase of the modified nano-SiO

filler contents

the crystallinity of the film increased from 9.8% to 17.19%. The crystallinity plays an important role in the construction of rough structure on the surface of materials.

关键词

非溶剂诱导相分离左旋聚乳酸硬脂酸硅烷偶联剂超疏水

Keywords

Nonsolvent induced phase separationPoly(L-lactic) acid (PLLA)Stearic acidSilane coupling agentSuper-hydrophobic

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Properties of Modified Wheat Straw Powder/Polypropylene Composites

Research Development of Composite Coating of Polyphenylene Sulfide and Polytetrafluroethylene

Related Author

No data

Related Institution

Nanjing Forestry University College of Science

China University of Petroleum

Beihang University

⁰