Experimental characterization of temperature dependent dynamic properties of glass fiber reinforced polyurethane foams

Lee, Dong-Ju; Kim, Min-Kyeom; Walsh, J. L.; Jang, Hong-Kyu; Kim, Hyung-Ick; Oh, Eunsun; Nam, Jae‐Do; Kim, Myunghyun; Suhr, Jonghwan

doi:10.1016/j.polymertesting.2018.12.013

Cited by 20 publications

(6 citation statements)

References 14 publications

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“…The results show that the yield strength of polyurethane foam increases with the increase in loading speed at both room temperature and low temperature. The failure mode of the material is independent of the strain rate, but it is related to the temperature, and it shows more obvious brittle characteristics at low temperatures [ 110 ].…”

Section: Influence Of Temperature On Polyurethane Foam Properties Dur...mentioning

confidence: 99%

A Review of Research on the Effect of Temperature on the Properties of Polyurethane Foams

et al. 2022

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Temperature is one of the main factors affecting the properties of polyurethane foams, and there are large differences in the mechanical properties of polyurethane foams at different temperatures. To understand the effect of temperature on the mechanical properties of polyurethane foams and to provide a theoretical basis for the application of polyurethane foams in extreme environments, this paper systematically describes the research on the effect of mold temperature, raw material temperature, and environmental temperature on the microstructure and mechanical properties of polyurethane foams in the formation and service stages of rigid polyurethane foams by domestic and foreign scholars, and summarizes the effect of temperature on the mechanical properties of polyurethane foams and the mechanism of action. A review of the literature shows that the effect of different temperatures on the mechanical properties of polyurethane foams can be summarized. The literature review shows that there are certain changes in the foaming process, pore structure, and mechanical properties of polyurethane foams at different temperatures, and the increase in temperature generally leads to the increase in pore size, decrease in density, and decrease in mechanical properties of polyurethane foams.

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Section: Influence Of Temperature On Polyurethane Foam Properties Dur...mentioning

confidence: 99%

A Review of Research on the Effect of Temperature on the Properties of Polyurethane Foams

et al. 2022

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“…The storage modulus can reflect the hardness of the composites to a certain extent [41]. Figure 9 exhibits the relationship between storage modulus and temperature of PU/MFA-0.0 wt.…”

Section: Resultsmentioning

confidence: 99%

Effect of Silane Treatment on Mechanical Properties of Polyurethane/Mesoscopic Fly Ash Composites

Qin

et al. 2019

Polymers

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In view of the accidents such as rock mass breakage, roof fall and coal slide in coal mines, polyurethane/mesoscopic fly ash (PU/MFA) reinforcement materials were produced from polymethylene polyphenylene isocyanate (PAPI), the polyether polyol, flame retardant, and MFA using stannous octanate as a catalyst. 3-Glycidoxypropyltrimethoxysilane (GPTMS) was grafted on MFA surface, aiming to improve the mechanical properties of PU/MFA composites. The analyses of infrared spectroscopy and compression resistance reveal that the GPTMS can be successfully attached to the surface of MFA, and the optimum modification dosage of GPTMS to MFA is 2.5 wt % (weight percent). On this basis, the effect of GPTMS on the mechanical properties of PU/MFA reinforcement materials during the curing process was systematically investigated through a compression test, a fracture toughness test, a three-point bending test, a bond property test, and a dynamic mechanics analysis. The results show that the compression property, fracture toughness, maximum flexural strength, and bond strength of PU/MFA composites increase by 21.6%, 10.1%, 8.8%, and 19.3%, respectively, compared with the values before the modification. Furthermore, the analyses of scanning electron microscope and dynamic mechanics suggest that the coupling agent GPTMS can successfully improve the mechanical properties of PU/MFA composites because it eliminates the stress concentration and exerts a positive effect on the crosslink density and hardness of PU/MFA composites.

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“…13 Third, dispersion of filler to matrix will increase dynamic strength and decrease thermal conductivity of the polymer. 4,11,16 Young's modulus and compressive stress appear to increase by 590% and 150% when reinforced foam by 4% of nanocellulose. 3 The initial degraded temperature of PU elastomer increases 21 C when filled it with 2 wt% of nanocellulose.…”

Section: Introductionmentioning

confidence: 98%

“…Therefore, aiming to advantaged application, enhancement of bio-based foams has become hotspot among PU research. Up till now, many kinds of fillers, such as nanocellulose, [3][4][5] chitosan, 6 esparto wool, 7 potato protein, 8 leather solid waste, 9 nanocarbon, 10,11 nanosilica, 12,13 nanoclay, 7 fly ash cenospheres, 14,15 glass fiber, 16 soda-lime-borosilicate glass, 17 jute fibre, 18 calcium carbonate, 19 and ground tire rubber 20 have been investigated to reinforce or modify PU foam.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of agricultural wastes liquefied polyols based polyurethane foams by agricultural wastes particles

Zhang

Hori

Takemura

2021

J of Applied Polymer Sci

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Four kinds of agricultural wastes particles (XS: oilseed rape straw [OS], rice straw [RS], wheat straw [WS], and corn stover [CS]) were used to reinforce agricultural wastes liquefied polyol (P‐XS) based polyurethane (PU) foam. Different XS loading dosages (0% ~ 15%) are investigated to confirm suitable filler concentrations for modifying foams. RS particles show great promoting ability, OS particles reveal complex influence, while WS and CS particles display mild effect on foaming process. With 1% of OS, 6% of RS, 3% of WS, or 1% of CS incorporating in matrix materials, the reinforced foam could keep applicable density, reach better physical and mechanical property, display more uniform cellular structure, and show higher thermal stability with more excellent water absorption ability. Using of agricultural wastes as polymer filler is economical, simple, environmental, and wide applicable for biomass utilization and biopolymer preparation.

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Experimental characterization of temperature dependent dynamic properties of glass fiber reinforced polyurethane foams

Cited by 20 publications

References 14 publications

A Review of Research on the Effect of Temperature on the Properties of Polyurethane Foams

A Review of Research on the Effect of Temperature on the Properties of Polyurethane Foams

Effect of Silane Treatment on Mechanical Properties of Polyurethane/Mesoscopic Fly Ash Composites

Reinforcement of agricultural wastes liquefied polyols based polyurethane foams by agricultural wastes particles

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