关于废弃PU泡有效降解的研究
Xiaohua Gu1,2,3, Xiaoyao Wang2, Xinyu Guo4
1School of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Polymers
|May 27, 2023
概括
废弃的聚氨泡可以使用氧化 (CsOH) 催化剂和混合酒精有效降解和回收. 这一过程产生了符合国家标准的再生聚氨泡,提供了可持续的回收解决方案.
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
- 可持续化学 可持续化学
背景情况:
- 聚氨泡废弃物对环境构成重大挑战.
- 有效的回收方法对于可持续的材料管理至关重要.
研究的目的:
- 开发一种高效的降解和回收废弃聚氨泡的方法.
- 为了制备具有可取性质的再生耐热聚氨硬泡.
主要方法:
- 使用氧化 (CsOH) 作为催化剂,以及糖醇和丁醇混合物作为酒精溶解剂.
- 优化反应条件,包括剂量比,催化剂度,温度和时间.
- 描述了再生泡的特性,包括粘度,GPC,基值和机械强度.
主要成果:
- 确定了最佳的酒精分解条件:糖醇:布坦二醇比为 3:2,0.08%CsOH,170°C2.5小时.
- 成功制备的再生聚氨泡,其表面密度为34.1 kg/m3和压力强度为0.301 MPa.
- 再生泡表现出良好的热稳定性,完整的毛孔和强大的骨结构.
结论:
- 开发的酒精化工艺为回收废物聚氨泡提供了一条有效的途径.
- 再生聚氨泡符合国家标准,并表现出可行的材料特性.
- 这种方法为可持续的聚氨废物管理提供了一个有希望的方法.
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