Boron-modified phenolic resins for high performance applications

Abdalla, Mohamed; Ludwick, Adriane G.; Mitchell, T.P.

doi:10.1016/j.polymer.2003.09.019

Cited by 211 publications

(123 citation statements)

References 7 publications

Supporting

Mentioning

121

Contrasting

Order By: Relevance

“…Above 325 C, B 2 O 3 softens to glass and becomes pourable only at 500 C. 15 Thus, boric acid is found to exert its flame retardant action on polymeric materials at a temperature well below that of the normal pyrolysis of these materials;…”

Section: Thermal Analysismentioning

confidence: 99%

Investigation of flame retardancy and physical–mechanical properties of zinc borate/boric acid polyester composites

Demirel

Pamuk

Dilsiz

2009

J of Applied Polymer Sci

View full text Add to dashboard Cite

The glass fiber reinforced polyester composite materials were prepared with varying contents of boric acid, zinc borate, and magnesium hydroxide as flame retardants to improve the flame retardancy of the composites. Experimental results showed that boric acid exhibited a good flame retardant effect on the polyester composite. When boric acid content is used as 15 wt %, the Limiting Oxygen Index (LOI) value of the composite reached upto 25.3. The increase in boric acid content from 15 to 30 wt %, the LOI values of composite were enhanced from 25.3 to 34.5 by 9.2 units. The LOI values of the composite samples increased with increasing boric acid content. The smoke density results showed that the addition of glass fiber and flame retardants decreased the smoke density of the unreinforced polyester resin. The mechanical properties of the composites have decreased by the addition of flame retardants. The scanning electron micrographs taken from fracture surfaces were examined. The flame retardants, such as boric acid, were well dispersed in the glass fiber reinforced polyester composites and obviously improved the interfacial interaction between glass fibers and polyester composites.

show abstract

Section: Thermal Analysismentioning

confidence: 99%

Investigation of flame retardancy and physical–mechanical properties of zinc borate/boric acid polyester composites

Demirel

Pamuk

Dilsiz

2009

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In recent years search for alternative feed stock has been stimulated due to the depletion of petroleum reserves on one hand and the increasing demand for petroleum products on the other 10,11 . The vegetable oils especially those obtained from different seeds extensively utilized in developing polymeric resins like alkyds, polyesteramides, epoxies and many others 1,5 .…”

Section: Introductionmentioning

confidence: 99%

Studies on Alumina Incorporated Polyesteramide Derived from Meliaazedarach Seed Oil

Hasnat¹,

Naseem²,

Ahmad³

2016

Orient. J. Chem

View full text Add to dashboard Cite

Polyesteramide resin (MAPEAM) was prepared from N,N-bis(2-hydroxy ethyl) Melia azedarach oil fatty amide (HEMAFA) a precursor of natural renewable resource using polycondensation reaction with maleic acid. With the view to improve the physico-mechenical properties aluminium was incorporated in backbone of the polymer to obtain the alumina incorporated polyesteramide resin of Melia azedarach seed oil (Al-MAPEAM). The physico-chemical analyses and spectroscopic techniques were used for the characterization of Al-MAPEAM polymeric resin. The film properties of the Al-MAPEAM were also investigated in different corrosive environments as per standard reported methods. Studies shows that syntheses of aluminium incorporated polyesteramide using Melia azedarach seed oil as a starting material provides a more practicable utilization to it.

show abstract

“…According to the literature [4][5], the condensation product of salicylalcohol and boric acid consists principally of phenol borate and some salicylalcohol borate. It was studied that born tended to form covalent bond with oxgen and the energy of B-O is 515 kJ•mol -1 , which is obviously higher than that of C-C bond (345 kJ•mol -1 ) [6].…”

Section: Introductionmentioning

confidence: 99%

The effect of boron incorporation on the thermo-oxidative stability of phenol-formaldehyde resin and its pyrolyzate phase

Ding¹,

Zhang

Qin³

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

View full text Add to dashboard Cite

Abstract. The thermo-oxidative degradation behavior of the B-PF was studied using thermal gravimetry analysis (TGA-DTG) method. Compared with the unmodified resin (PF), the temperature at the maximum decomposing rate of the B-PF resin increases by 54 ℃ and its oxidative residues yield at 1000 ℃ enhances by 17.99 percent. The pyrolyzate of B-PF were further analyzed by XPS and XRD analysis. The analysis indicates that the boron element reacts with the air or oxygen-containing volatiles to generate boron nitride and boron oxide at elevated temperatures. In addition, incorporating boron into the carbon lattice increases the crystallite height and decreases the interlayer spacing.

show abstract

Boron-modified phenolic resins for high performance applications

Cited by 211 publications

References 7 publications

Investigation of flame retardancy and physical–mechanical properties of zinc borate/boric acid polyester composites

Investigation of flame retardancy and physical–mechanical properties of zinc borate/boric acid polyester composites

Studies on Alumina Incorporated Polyesteramide Derived from Meliaazedarach Seed Oil

The effect of boron incorporation on the thermo-oxidative stability of phenol-formaldehyde resin and its pyrolyzate phase

Contact Info

Product

Resources

About