Modified melamine-formaldehyde resins improve tensile strength along with antifouling and flame retardancy in impregnation of cellulose paper

Chen, Xiaoyan; Afreen, Shagufta; Yu, Xiao; Dong, Chaohong; Kong, Qingshan

doi:10.1039/c9ra07743j

Cited by 21 publications

(12 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also found that the tensile strength of the modified UF is higher at 2 wt% PVA loading and then decreases with increasing PVA content. Similar trend of tensile strength was observed in modified melamine formaldehyde resin and modified epoxy resin [31][32]. The addition of PVA improved the tensile strength performance of the PVA modified UF resin due to the form of physical crosslinking between the resin with flexible chain of PVA, so PVA shared part of the stress uniformly when subjected to external forces that increased the tensile strength of modified resin.…”

Section: Mechanical Properties Of Uf and Pva Modified Uf Resinsupporting

confidence: 70%

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

Sultana

Mannan²,

Abedin³

et al. 2021

Advances in Materials Science

View full text Add to dashboard Cite

Urea formaldehyde (UF) resins are brittle and to improve their tensile properties poly(vinyl alcohol) (PVA) has been used to modify the UF resin. An easy improved procedure was developed to make PVA modified UF resin on the basis of conventional synthesis of UF resin. Prepolymer of UF was mixed with different weight percentages of PVA (1-5%) to synthesize modified UF resin which can be used to make adhesive for forest products. Both UF and modified UF resins were characterized by FTIR, physico-mechanical and thermal properties analyses. Modified UF resin containing 2 wt. % PVA exhibited better results than the UF.

show abstract

Section: Mechanical Properties Of Uf and Pva Modified Uf Resinsupporting

confidence: 70%

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

Sultana

Mannan²,

Abedin³

et al. 2021

Advances in Materials Science

View full text Add to dashboard Cite

show abstract

“…That is attributed to interaction between functional groups of soy protein and that of the MF and cellulose of jute. 10,12 A plausible mechanism of synergic bonding between functional groups of cellulose, soy protein and melamine formaldehyde are given in Figure 3. Increase in MF content from 0 to 50 wt.%, also enhanced flexural strength from 33.54 (MMSJ1) to 64.8 MPa (MMSJ6) and flexural modulus from 1219 MPa to 5821 MPa.…”

Section: Mechanical Strength Of Compositesmentioning

confidence: 99%

Evaluation of conductivity and mechanical properties of natural fiber reinforced soy‐melamine formaldehyde based green composite

Behera

Manna

2021

Polymer Composites

View full text Add to dashboard Cite

This article presents the preparation and characterization of jute‐based green composite using various concentrations of melamine formaldehyde modified soy resin. Highest tensile strength of 62.1 MPa was obtained for 50 wt.% melamine formaldehyde modified soy resin‐based jute‐composite due to formation of synergic bonding between melamine formaldehyde, soy protein and cellulose of jute. Other tensile and flexural properties were also enhanced with increase in melamine formaldehyde content from 0 to 50 wt.%. Storage modulus of developed composite (50 wt.%) was enhanced by 8.48 times as compared to that of soy‐jute composite (0 wt.% melamine formaldehyde). Water absorption of optimum composite was reduced by 45% than that of the normal jute‐soy composite. With increase in melamine formaldehyde content (0–100 wt.%), surface electrical insulation and fire retardance properties of composite were also enhanced drastically. Weight loss data and scanning electron microscopic images of degraded composites after 180 days under soil burial condition revealed that developed composites are bio‐degradable in nature and can replace non‐degradable plastic in different industrial sectors like railway coaches, packaging sector, decorative commodity material, and so on.

show abstract

“…groups of leather samples, which each group have 15 pieces (140 mm x 60 mm) that were taken from flameretardant leather were tested in parallel in a limiting oxygen index chamber according to ASTM D 2863-77 LOI test [14]. For SEM analysis the samples were placed on a scanning electron microscope (Fei-Quanta Feg 250) and their images were taken at 500 µm and 100 µm magnifications.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…[13]. When the flame retardancy effects of resins in different materials are examined in the literature; Chen et al, used modified melamine resins on cellulose papers because it is a thermoset resin and they found that LOI values of papers were increased from 32% to 33.5% by the effect of melamine resin [14]. Gaan et al benefited from nitrogen phosphorus synergistic effect to increase flame retardancy property of TBP in cotton fibers and they used nitrogen containing urea and melamine resins.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Flame Retardant Effects of Resins on the Flammability of Leather

Gültek

Çelik

Acıkel

2021

Tekstil Ve Konfeksiyon

View full text Add to dashboard Cite

Natural leather products, which are by-products of the meat industry, are used because of their high air vapor permeability and elegant appearance compared to synthetic leather. The production of flame retardant leather is important for some leather types such as motorcyclist jackets, flight or automotive upholstery leathers, military boots. It is frequently mentioned in the literature that resinous chemicals create flame retardant effects in textile materials due to their nitrogen content. Urea, melamine and dicyandiamide resins are always used in the traditional retanning process of cattle leathers. It has been investigated which of these resins has the highest flame retardant effect on the leather. In the study, 2%, 3% and 4% ratios were studied for these three resins; flame resistance of the leathers were investigated by LOI and TGA analysis. The study also examined the chemical effects of resin deposition on the leather surface with FTIR and SEM analyses.

show abstract

Modified melamine-formaldehyde resins improve tensile strength along with antifouling and flame retardancy in impregnation of cellulose paper

Abstract: Polyvinyl alcohol (PVA) and benzoguanamine (BG) modified melamine-formaldehyde (MF) resins were used to prepare high-pressure laminates (HPLs) and the improved tensile strength, flame retardancy and antifouling properties were investigated.

Cited by 21 publications

References 32 publications

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

Physico-Mechanical and Thermal Properties of Thermoplastic Poly(Vinyl Alcohol) Modified Thermosetting Urea Formaldehyde Resin

Evaluation of conductivity and mechanical properties of natural fiber reinforced soy‐melamine formaldehyde based green composite

Investigation of Flame Retardant Effects of Resins on the Flammability of Leather

Contact Info

Product

Resources

About