Article
Licensed
Unlicensed
Requires Authentication
Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
-
Wen-Jau Lee
,
Chao-Yun Yu
Published/Copyright:
October 11, 2010
Abstract
Bambusa dolichoclada Hayata (long-shoot bamboo) was liquefied in phenol with H2SO4 as a catalyst. The phenol-liquefied bamboo was then used as a raw material to prepare spherical phenol-formaldehyde (PF) resin beads by a suspension polymerization in a two-step process. The influence of the stirring speed (300, 350 and 400 rpm), the stabilizer dosage (3%, 4% and 5%) and the total molar ratio of formaldehyde to free phenol (F/P) (3.0/1, 3.5/1 and 4.0/1) on the properties of spherical PF beads was investigated. The results show that the yield, diameter and dimensional distribution of prepared PF beads were influenced by reaction conditions. The diameter of beads decreased as the stabilizer dosage increased. It had a more uniform dimensional distribution when stirred with a speed of 400 rpm. Differential scanning calorimetry analysis shows that PF beads obtained were not completely cured and the post-curing reaction took place at temperatures exceeded 150°C. As revealed by thermal gravimetric analysis, the char yield was over 60% after heating to 800°C.
Keywords: Bambusa dolichoclada; phenol-liquefied bamboo; phenolic resins; spherical phenol-formaldehyde (PF) beads
Received: 2010-2-9
Accepted: 2010-6-25
Published Online: 2010-10-11
Published Online: 2010-10-11
Published in Print: 2011-03-01
©2011 by Walter de Gruyter Berlin New York
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Editorial
- Note from the Editor-in-Chief
- Original papers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 1. Catalyzed reactions with wood models and wood polymers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 2. Non-catalyzed reactions with the wood cell wall
- Effect of periodate on lignin for wood adhesive application
- Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
- Novel paper sizing agents based on renewables. Part 4: Application properties in comparison to conventional ASA sizes
- Organosolv pretreatment of olive tree biomass for fermentable sugars
- NIR-based prediction of extractives in American white oak heartwood
- Synthesis and herbicidal activity of 5-dehydroabietyl-1,3,4-oxadiazole derivatives
- Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
- Prediction of plywood bonding quality using an artificial neural network
- Photostability and moisture uptake properties of wood veneers coated with a combination of thin sol-gel films and light stabilizers
- Thermal degradation of bending properties of structural wood and wood-based composites
- Modelling time-dependent mechanical behaviour of softwood using deformation kinetics
- Viscoelastic properties of woody hemp core
- Scale effect in the anisotropic deformation change of tracheid cells during water adsorption
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 1. Genus Trichoderma
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 2. Genus Penicillium
- Fungi associated with bamboo and their decay capabilities
- Antifungal activities of three supercritical fluid extracted cedar oils
- Short Note
- Influence of wood specimen thickness on its mechanical properties by tensile testing: solid wood versus veneer
- Meetings
- Meetings
Keywords for this article
Bambusa dolichoclada;
phenol-liquefied bamboo;
phenolic resins;
spherical phenol-formaldehyde (PF) beads
Articles in the same Issue
- Editorial
- Note from the Editor-in-Chief
- Original papers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 1. Catalyzed reactions with wood models and wood polymers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 2. Non-catalyzed reactions with the wood cell wall
- Effect of periodate on lignin for wood adhesive application
- Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
- Novel paper sizing agents based on renewables. Part 4: Application properties in comparison to conventional ASA sizes
- Organosolv pretreatment of olive tree biomass for fermentable sugars
- NIR-based prediction of extractives in American white oak heartwood
- Synthesis and herbicidal activity of 5-dehydroabietyl-1,3,4-oxadiazole derivatives
- Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
- Prediction of plywood bonding quality using an artificial neural network
- Photostability and moisture uptake properties of wood veneers coated with a combination of thin sol-gel films and light stabilizers
- Thermal degradation of bending properties of structural wood and wood-based composites
- Modelling time-dependent mechanical behaviour of softwood using deformation kinetics
- Viscoelastic properties of woody hemp core
- Scale effect in the anisotropic deformation change of tracheid cells during water adsorption
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 1. Genus Trichoderma
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 2. Genus Penicillium
- Fungi associated with bamboo and their decay capabilities
- Antifungal activities of three supercritical fluid extracted cedar oils
- Short Note
- Influence of wood specimen thickness on its mechanical properties by tensile testing: solid wood versus veneer
- Meetings
- Meetings
