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用于制备具有高耐温和盐度的交联宁-多烯胺水凝
Keyan Wang1, Jiajun Qiu1, Wanyun Huang1
1Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science & Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area, Tianjin 300457, China.
研究人员开发了一种新型的素交联聚烯胺 (L-cPAM) 水凝. 这种L-cPAM水凝表现出增强的机械强度,热稳定性以及对高温和盐度的抗性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料是一种生物材料.
背景情况:
- 开发具有增强稳定性的先进水凝对于各种工业应用至关重要.
- 作为一种可再生生物聚合物,红具有创造功能性和可持续材料的潜力.
- 聚烯胺水凝在热和盐水环境中经常面临限制.
研究的目的:
- 为了合成一个多功能素交联聚烯胺 (L-cPAM) 水凝.
- 为了研究红素含量对水凝特性的影响.
- 为了评估在极端条件下L-cPAM水凝的性能.
主要方法:
- 一个连续的两步策略,涉及素和聚烯胺 (PAM) 的交叉链接,其次是PAM聚合.
- 在交叉连接过程中,红素含量 (0-30%) 的系统变化.
- 机械强度,热稳定性,耐盐性和形状恢复的表征.
主要成果:
- 由于结和交叉连接,L-cPAM水凝显示出了刚性和多孔的网络结构.
- 机械强度在15%的木质素剂量下增加了53.6%,达到180.71kPa.
- 高形状恢复率 (85.28%在20次压缩后),增强的热稳定性 (降解在181°C开始),在高盐分盐水中在150°C下长时间稳定超过60天.
结论:
- 开发的L-cPAM水凝具有卓越的机械性能,热稳定性以及对高温和盐度的抗性.
- 素的加入有效地提高了聚烯胺的性能.
- 这项研究提出了一种新且可持续的方法,用于使用素和聚烯胺制造高性能水凝.
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