Effect of fiber surface treatment on the structure and properties of rigid bagasse fibers/polyurethane composite foams

2021 ◽  
Author(s):  
Qunlei Qiu ◽  
Xin Yang ◽  
Penghao Zhang ◽  
Danyu Wang ◽  
Miao Lu ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Fiber Surface ◽  
Structure And Properties ◽  
Polyurethane Composite ◽  
Composite Foams ◽  
Fiber Surface Treatment

The Influence of Fiber Surface Treatment and SBR as Impact Modifier on Rheological Behavior and Mechanical Properties of Wood Plastic Composite from Acrylate-Styrene-Acrylonitrile and Bagasse

2017 ◽  
Vol 737 ◽  
pp. 281-286 ◽  
Author(s):  
Pornsri Sapsrithong ◽  
Kesinee Puksattee ◽  
Kingkaew Saewjaidee ◽  
Navapon Pensuk ◽  
Apaipan Rattanapan
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Surface Treatment ◽  
Rheological Behavior ◽  
Fiber Surface ◽  
Wood Plastic Composite ◽  
Plastic Composite ◽  
Styrene Acrylonitrile ◽  
Impact Modifier ◽  
Fiber Surface Treatment

Morphology, mechanical properties and rheological behavior of wood plastic composite, derived from acrylate-styrene-acrylonitrile (ASA) and bagasse which was treated with potassium permanganate (KMnO4) and using styrene butadiene rubber (SBR) as impact modifier, were reported. The effect of fiber surface treatment with KMnO4 and different amount of SBR on properties of wood plastic composite, prepared from ASA and 50 phr of bagasse, were investigated. Wood plastic composites (both treated and untreated) with varying amount of SBR, as impact modifier from 0-15 wt% of ASA, were prepared by melt-blending technique. The specimens were shaped with a compression molding machine and characterized, including morphology, impact strength, flexural properties and rheological behavior. It was demonstrated that the fiber surface treatment, using KMnO4, could effectively impove interfacial adhesion between bagasse and ASA matrix. These led to an improvement of morphology and mechanical properties such as impact strength, flexural strength and modulus. SEM micrographs revealed that the interfacial modification enhanced the interfacial adhesion between bagasse (fiber) and ASA (matrix) causing an increasing of shear stress and shear viscosity. Additionally, the effect of amount of SBR, as impact modifier, was also reported. The resulted showed that the impact strength was improved with increasing the amount of SBR (up 5 wt% of ASA) whereas, flexural strength and modulus were found to decrease with increasing SBR content.

Effect of Fiber Surface Treatment Techniques on Properties of Short Carbon Fiber Reinforced Phenol Formaldehyde Resin/Graphite Composite Bipolar Plate

2011 ◽  
Vol 393-395 ◽  
pp. 62-66
Author(s):  
Yan Ming Wang ◽  
Wei Qiang Wang ◽  
Ai Ju Li
Keyword(s):  
Carbon Fiber ◽  
Surface Treatment ◽  
Phenol Formaldehyde ◽  
Fiber Surface ◽  
Bipolar Plate ◽  
Graphite Composite ◽  
Bonding State ◽  
Treatment Techniques ◽  
Graphite Matrix ◽  
Fiber Surface Treatment

Research was done on carbon fiber surface treatment techniques on boundary-bonding state and properties of short carbon fiber reinforced phenol formaldehyde (PF) resin/graphite composite. By gas-phase oxidative surface treatment (GPOST)、gas-phase and liquid-phase oxidative surface treatment (GLPOST), carbon fiber and PF resin /graphite matrix is on weak boundary bonding state. The exerted outside stress can not be effectively transmitted, the composite strength is lower than that of PF resin/graphite matrix; By thick nitric acid liquid-phase oxidative surface treatment (TNALPOST) which the nitric acid has high density, fiber and matrix is on relatively weak boundary bonding state, the exerted outside stress can be effectively transmitted and composite strength can be raised on some degree. With carbon fiber content by TNALPOST 3.wt%~ 4.wt% and PF resin content 15.wt%, the composite can meet both the mechanical strength and electrical conductivity requirement on carbon filler/polymer bipolar plate by USA Department of Energy.

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