scholarly journals Chemical and thermal properties of lignins from oil palm biomass as a substitute for phenol in a phenol formaldehyde resin production

2011 ◽  
Vol 86 (1) ◽  
pp. 112-119 ◽  
Author(s):  
Mohamad Nasir Mohamad Ibrahim ◽  
Norhidaya Zakaria ◽  
Coswald Stephen Sipaut ◽  
Othman Sulaiman ◽  
Rokiah Hashim
Keyword(s):  
Thermal Properties ◽  
Oil Palm ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Oil Palm Biomass

scholarly journals A comparison between the properties of low and medium molecular weight phenol formaldehyde resin-treated laminated compreg oil palm wood

2017 ◽  
Vol 19 (3) ◽  
pp. 1-11 ◽  
Author(s):  
G. Aizat ◽  
A. Zaidon ◽  
S. H. Lee ◽  
S. B. Edi ◽  
B. Paiman
Keyword(s):  
Molecular Weight ◽  
Oil Palm ◽  
Phenolic Resin ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Low Molecular Weight ◽  
Hot Press ◽  
Plastic Bag ◽  
Better Than

In order to improve the inherently poor properties of oil palm wood (OPW), this study examines the effects of resin molecular weight, diffusion time and compression ratio on the properties of laminated compreg OPW. Treating solutions used were medium molecular weight phenol formaldehyde (MmwPF) and low molecular weight phenol formaldehyde (LmwPF). OPW strips were soaked in the treating solutions for 24 h before wrapping in a plastic bag and leaving them for diffusion for 2, 4 and 6 days, respectively. Then, three-layer laminated compreg OPW were fabricated and compressed in hot press at 150°C for 20 minutes to achieve compression ratios of 55%, 70% and 80%. Results indicated that dimensional stability and mechanical properties of the phenolic resin treated laminated compreg OPW were significantly better than the untreated laminates. MmwPF-treated laminates exhibited inferior properties in comparison to that of LmwPF-treated laminates. Nevertheless, MmwPF-treated laminated compreg OPW emitted significantly lesser formaldehyde.

Curing, Thermal Properties and Flame Resistance of Tetrabromo-BPA Epoxy Resin/ Boron-Containing Phenol Resin

2011 ◽  
Vol 239-242 ◽  
pp. 1022-1025
Author(s):  
Jun Gang Gao ◽  
Xue Fang Zhang ◽  
Hong Qiu Lv
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Phenol Formaldehyde ◽  
Epoxy Group ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Gravimetric Analysis ◽  
Flame Resistance ◽  
Index Method ◽  
Infrared Spectrometer

In order to improve the properties of boron-containing phenol-formaldehyde resin (BPFR), the tetrabromo-bisphenol A epoxy resin (TBBPAER) was used to cure BPFR. The curing mechanism, thermal properties and the fire resistance of TBBPAER/BPFR were investigated by fourier transform infrared spectrometer (FTIR), thermal gravimetric analysis (TGA), torsional braid analysis (TBA) and the oxygen index method. The results show, -OH of -C6H4-CH2OH and -C6H4OH reacts with the epoxy group. With the increase in the amount of BPFR, the thermal properties get better. When the additive amount of TBBPAER is 10 wt%, this material has best thermal stability at high temperature and higher temperature of loss bromine. The glass transition temperature (Tg) is 223.2 °C and the LOI is 68.5.

scholarly journals Curing and thermal properties of co-polymerized tannin phenol–formaldehyde resin for bonding wood veneers

2020 ◽  
Vol 9 (4) ◽  
pp. 6994-7001 ◽  
Author(s):  
Nur Liyana Mohamad Hafiz ◽  
Paridah Md Tahir ◽  
Lee Seng Hua ◽  
Zurina Zainal Abidin ◽  
Fatimah Athiyah Sabaruddin ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin
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