Natural fiber reinforced inorganic foam composites from short hemp bast fibers obtained by mechanical decortation of unretted stems from the wastes of hemp cultivations

被引：18

作者：

Viscusi, Gianluca ^{[1
]}

Barra, Giuseppina ^{[1
,2
]}

Verdolotti, Letizia ^{[3
]}

Galzerano, Barbara ^{[3
]}

Viscardi, Massimo ^{[4
]}

Gorrasi, Giuliana ^{[1
]}

机构：

[1] Univ Salerno, Dept Ind Engn, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy

[2] Nafco Srl, Via Emanuele Gianturco 23, I-80146 Naples, Italy

[3] CNR, Inst Polymers Composite & Biomed Mat IPCB, Ple Tecchio 80, I-80125 Naples, Italy

[4] Univ Naples Federico II, Dept Ind Engn, Aerosp Sect, Via Claudio 21, I-80125 Naples, Italy

来源：

MATERIALS TODAY-PROCEEDINGS | 2021年 / 34卷

关键词：

Hemp fibers; Diatomite source; Fiber reinforced foams; Natural fiber reinforced composites (NFCs); Wettability;

D O I：

10.1016/j.matpr.2020.02.672

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The wettability of hemp fibers, to be applied in fiber-reinforced foams, can be improved with several chemical treatments. In this paper, a innovative treatment with sodium ascorbate was evaluated. Untreated and treated fibers have been characterized using FTIR spectroscopy and TGA measurements. Furthermore, the feasibility of treated fibers was evaluated preparing diatomite-based fiber-reinforced foams. These materials were finally characterized by mechanical compressive strength and thermal properties (thermal conductivity). The fiber-reinforced foams have been produced using a diatomite natural source as a matrix. A suitable amount of Si powder and vegetable surfactant were used as chemical and physical foaming agents while a polysilicate solution was used as reactive crosslinker. The foams highlight low density, around 350 kg/m(3), and low thermal conductivity (0.06 W/mK). (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：176 / 179

页数：4