Scholarlink

<p>This study develops a silica-coated nanoscale calcium carbonate composite using sodium silicate and ethyl cellulose/n-butanol to address vinegar syndrome in triacetate films. The modified material enhances dispersibility and acid resistance, applied via brushing to degraded films. Post-treatment, film pH rises from 4 to &gt;6.5, surface becomes hydrophobic (contact angle confirmed), and thermal/molecular stability improves (TGA/XRD verified). The mechanical strength exhibits a substantial enhancement, with stress rising from 27.35 to 86.43 MPa and strain improving from 4.32% to 5.53%, while demonstrating sustained stability following aging treatment. The composite mitigates surface roughness and optical defects while preserving image clarity. Comparative tests confirm its effectiveness in deacidification, structural reinforcement, and delayed degradation, demonstrating promising potential for conserving acetate-based cultural heritage affected by vinegar syndrome.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Silica nano CaCO3 ethylcellulose N-butanol composite system for film preservation vinegar syndrome eradication

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月27日

查看全文
  • Xujia Dong,
  • Yuhu Li,
  • Xiaolian Chao,
  • Yajun Zhou

摘要

This study develops a silica-coated nanoscale calcium carbonate composite using sodium silicate and ethyl cellulose/n-butanol to address vinegar syndrome in triacetate films. The modified material enhances dispersibility and acid resistance, applied via brushing to degraded films. Post-treatment, film pH rises from 4 to >6.5, surface becomes hydrophobic (contact angle confirmed), and thermal/molecular stability improves (TGA/XRD verified). The mechanical strength exhibits a substantial enhancement, with stress rising from 27.35 to 86.43 MPa and strain improving from 4.32% to 5.53%, while demonstrating sustained stability following aging treatment. The composite mitigates surface roughness and optical defects while preserving image clarity. Comparative tests confirm its effectiveness in deacidification, structural reinforcement, and delayed degradation, demonstrating promising potential for conserving acetate-based cultural heritage affected by vinegar syndrome.