In this paper, polymer-dispersed liquid crystal (PDLC) films consisting of liquid crystal (LC)/monomers/indium tin oxide (ITO) nanoparticles with good near-infrared absorption property had been fabricated, and the influence of the ITO nanoparticles modified with 3-methacryloxypropyltrimethoxysilane (KH570) on the PDLC films was systematically studied. First, different liquid crystal content was studied to obtain PDLC films with good electro-optical properties. And then, various weight ratio of ITO nanoparticles was added to samples. While the content of ITO nanoparticles was increased, the saturation voltage increased and the CR decreased. Though the electro-optical properties of PDLC samples reduced with the addition ITO nanoparticles, the near-infrared absorption property of films was enhanced.
The effect of chemical finishings on water retention of knitted pure cotton fabrics has been studied in this paper. Knitted cotton fabrics are not readily dried after home laundering, leading to high consumption of energy for drying. With the increasing environmental concerns, it is important to reduce the water retention of the knitted pure cotton fabrics. In this study, the effect of hydrophilic finishing, hydrophobic finishing and resin finishing on water retention of fabrics was systemically investigated. The results showed that the hydrophilic finishing agent and hydrophilic softener have little influence on water retention of the fabrics, while the resin significantly decreases the water retention. The hydrophobic finishing agent and hydrophobic softener reduce the water retention. However, it was also found that the water retention has positive relationship with the interaction of hydrophobic finishing agent and resin. In addition, a mathematical equation between water retention and the amount of hydrophobic finishing agent and resin was established.
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