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Composite Films Formed by Cellulose nanocrystals and Latex Nanoparticles: Optical, Structural, and Mechanical Properties

机译:由纤维素纳米晶体和乳胶纳米颗粒形成的复合膜:光学,结构和机械性能

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摘要

This thesis describes the preparation of iridescent, birefringent, composite films composed of cellulose nanocrystals (CNCs), latex nanoparticles (NPs) and a NP crosslinker; hexanediamine (HDA).;First, aqueous suspensions were prepared with varying quantities of CNCs, NPs and HDA before equilibrating for one week. The cholesteric (Ch) phase was then cast and dried into a film. The optical, structural and mechanical properties of the film was analyzed.;Second, films with identical compositions of CNCs, NPs, and HDA were fabricated in three different ways to yield films of different morphology, (i) fast drying of an isotropic suspension, yielding an isotropic film, (ii) slow drying of an isotropic suspension, yielding a partially Ch films, (iii) slow drying of an equilibrated suspension, yielding a highly Ch film. The optical and mechanical properties of the films was analyzed.
机译:本文描述了由纤维素纳米晶体(CNC),乳胶纳米颗粒(NP)和NP交联剂组成的虹彩,双折射复合膜的制备。己二胺(HDA)。首先,在平衡一周之前,用不同数量的CNC,NP和HDA制备水悬浮液。然后将胆甾相(Ch)相流延并干燥成膜。分析了薄膜的光学,结构和机械性能;其次,以三种不同的方式制备了具有相同CNC,NP和HDA组成的薄膜,以产生具有不同形态的薄膜,(i)快速干燥各向同性悬浮液,产生各向同性的膜,(ii)缓慢干燥各向同性的悬浮液,得到部分Ch膜,(iii)缓慢干燥平衡的悬浮液,得到高Ch膜。分析了膜的光学和机械性能。

著录项

  • 作者

    Vollick, Brandon McRae.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Chemistry.;Polymer chemistry.;Materials science.
  • 学位 M.Sc.
  • 年度 2017
  • 页码 81 p.
  • 总页数 81
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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