Lightweight Biobased Polyurethane Nanocomposite Foams Reinforced with Pineapple Leaf Nanofibers (PLNFs)

• 作者: Guanben Du Hui Wang Jun Zhang Xiaojian Zhou Zhifeng Zheng
• 来源期刊: 可再生材料杂志(英文)
• 学科: 工学
• 关键词: POLYURETHANE foam palm oil POLYOL PINEAPPLE leaf NANOFIBERS physical properties
• 年，卷（期）: 2018,（1）
• 页码范围: 68-74
• 页数: 7页
• 分类号: TB3

摘要

Pineapple leaf nanofibers(PLNFs)extracted from pineapple leaf fiber were used for reinforcing biobased polyurethane foam(BPU).The dispersion performance of PLNF in the foaming mixture system,nanocomposite foaming behavior,cell morphology,cell size,density,compressive strength and dimensional stability were investigated.The viscosity of the mixtures increased with increasing the PLNF content.The addition of a tiny amount of PLNF did not influence the exothermic temperature of the foam system,but reduced the expansion and gel time of the nanocomposite foams.This reduced time was found to increase the production efficiency.Scanning electron microscopy(SEM)images showed that the PLNF neither affected the cell shape nor size.While the density of the foam was not obviously altered with the addition of a small amount of PLNF,the compressive strength and dimensional stability were significantly improved.