Soy-based polyurethane spray foam insulations for light weight wall panels and their performances under monotonic and static cyclic shear forces

Kakroodi, Adel Ramezani; Khazabi, Mustafa; Maynard, Kyle; Sain, Mohini; Kwon, O’Dae

doi:10.1016/j.indcrop.2015.03.092

Cited by 14 publications

(5 citation statements)

References 32 publications

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“…As the oxidation degradation progressed, the polyurethane molecular chain would hydrolyze, and the foam would change from toughness to brittleness, resulting in the foam bursting during the deformation process [11]. On the other hand, fatigue failure of polyurethane foam under external load (such as cyclic load) was one of the failure reasons, which was manifested by stiffness degradation and energy dissipation changes of foam materials [12,14,15]. The failure mechanism that the original crack induced abrupts brittle fracture under the action of load [16,17] and fracture toughness under different loads could be measured by the three-point bending test and shear test.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Compression Mechanical Properties of Rigid Polyurethane Foam Treated under Random Vibration Condition: An Experimental and Numerical Simulation Study

Qiu

2019

Materials

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The mechanical failure properties of rigid polyurethane foam treated under random vibration were studied experimentally and by numerical simulation. The random vibration treatments were carried out in the frequency range of 5–500 Hz, 500–1000 Hz, and 1000–1500 Hz, respectively. The influence of the vibration frequency, mass block and acceleration on the mechanical performance of rigid polyurethane foam was further investigated by compression testing. The experimental results showed that the compression performance and energy absorption of foams decreased the least between 500–1000 Hz. In addition, in the 5–500 Hz range, the reduction rate of compression performance and energy absorption increased with the increase of the vibration mass block and acceleration. The resulting simulation indicated that the deformation degree of the sample was the most serious under the condition of 5–500 Hz. With the increase of deformation, the damage of the sample during the vibration process increased, which led to the decrease of compression property and energy absorption of rigid polyurethane foam. This further explained the variation mechanism of the compression test performance.

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Section: Introductionmentioning

confidence: 99%

Investigation on Compression Mechanical Properties of Rigid Polyurethane Foam Treated under Random Vibration Condition: An Experimental and Numerical Simulation Study

Qiu

2019

Materials

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“…A first route is to add vegetable oils as alternative polyols, while the use of lignin-derived compounds is also very common. Examples include coconut oil, castor oil, linseed oil, palm oil, soybean oil, sunflower oil, evening primrose oil, and polyols derived from lignin [ 63 , 83 , 86 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 ]. There are also fillers and fibers of plant origin such as lignin particles [ 89 ].…”

Section: Rigid Cellular Materialsmentioning

confidence: 99%

A Review of Rigid Polymeric Cellular Foams and Their Greener Tannin-Based Alternatives

et al. 2022

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This review focuses on the description of the main processes and materials used for the formulation of rigid polymer foams. Polyurethanes and their derivatives, as well as phenolic systems, are described, and their main components, foaming routes, end of life, and recycling are considered. Due to environmental concerns and the need to find bio-based alternatives for these products, special attention is given to a recent class of polymeric foams: tannin-based foams. In addition to their formulation and foaming procedures, their main structural, thermal, mechanical, and fire resistance properties are described in detail, with emphasis on their advanced applications and recycling routes. These systems have been shown to possess very interesting properties that allow them to be considered as potential substitutes for non-renewable rigid polymeric cellular foams.

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“…A sensitivity study is carried out to investigate the evolution of the error depending on the mesh size, too. The effects of soy-based rigid PU foam cores and composite foams, containing wood fibre, on the performance of small-scale wooden wall panels was studied by Kakroodi et al [40]. They investigated the strengthening of the core under monotonic and static cyclic shear loads.…”

Section: Bending and Shear Behaviourmentioning

confidence: 99%

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

et al. 2019

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Composite panels with polyurethane (PU) foam-core and facing materials, such as gypsum, engineered wood or some composite materials, are being used as structural members in building construction. This paper reviews and summarises major research developments, and provides an updated review of references on the structural performance of foam-filled building composite panels from 1998 to 2017. The review revealed that previous studies on the structural performance of foam-filled building composite panels could be categorised into five themes; namely, energy absorption and dynamic behaviour; bending and shear behaviour, edgewise and flatwise compressive/tensile behaviour; delamination/deboning issues; and finally some miscellaneous issues. These categories comprise approximately 30%, 40%, 11%, 11% and 8% of related studies over the last two decades, respectively. Also, over the past five years, the number of relevant studies has increased by ~400% relative to the previous similar periods, indicating the attention and focus of researchers to the importance of the structural performance of foam-filled composite panels.

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Soy-based polyurethane spray foam insulations for light weight wall panels and their performances under monotonic and static cyclic shear forces

Cited by 14 publications

References 32 publications

Investigation on Compression Mechanical Properties of Rigid Polyurethane Foam Treated under Random Vibration Condition: An Experimental and Numerical Simulation Study

Investigation on Compression Mechanical Properties of Rigid Polyurethane Foam Treated under Random Vibration Condition: An Experimental and Numerical Simulation Study

A Review of Rigid Polymeric Cellular Foams and Their Greener Tannin-Based Alternatives

Structural Performance of Polyurethane Foam-Filled Building Composite Panels: A State-Of-The-Art

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