Impact of waste fillings on the thermoset rigid polyurethane foam

Al-Moameri, Harith; Marhoon, Ismail Ibrahim; Rasheed, Aseel Kais; Abdulrehman, Mohammed Ali; Al‐Sharify, Zainab T.

doi:10.1063/5.0148084

Cited by 1 publication

(1 citation statement)

References 19 publications

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“…This adverse effect is mainly attributed to changes in the morphology of polyurethane foam cells, which is a key factor determining these negative alterations [ 88 ]. Kurańska et al also mentioned a decrease in the strength parameter in their article, conducting tests using basalt waste [ 89 ]. It is also worth noting that excessive amounts of hazelnut, cellulose, chitin, and eggshell negatively affect the split tear strength [ 42 , 90 ].…”

Section: Adverse Effects Of Using Waste Materials—critical Discussionmentioning

confidence: 99%

Recycled Waste as Polyurethane Additives or Fillers: Mini-Review

Pęczek,

Pamuła,

Białowiec

2024

Materials

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The intensive development of the polyurethanes industry and limited resources (also due to the current geopolitical situation) of the raw materials used so far force the search for new solutions to maintain high economic development. Implementing the principles of a circular economy is an approach aimed at reducing the consumption of natural resources in PU production. This is understood as a method of recovery, including recycling, in which waste is processed into PU, and then re-used and placed on the market in the form of finished sustainable products. The effective use of waste is one of the attributes of the modern economy. Around the world, new ways to process or use recycled materials for polyurethane production are investigated. That is why innovative research is so important, in which development may change the existing thinking about the form of waste recovery. The paper presents the possibilities of recycling waste (such as biochar, bagasse, waste lignin, residual algal cellulose, residual pineapple cellulose, walnut shells, silanized walnut shells, basalt waste, eggshells, chicken feathers, turkey feathers, fiber, fly ash, wood flour, buffing dust, thermoplastic elastomers, thermoplastic polyurethane, ground corncake, Tetra Pak®, coffee grounds, pine seed shells, yerba mate, the bark of Western Red Cedar, coconut husk ash, cuttlebone, glass fibers and mussel shell) as additives or fillers in the formulation of polyurethanes, which can partially or completely replace petrochemical raw materials. Numerous examples of waste applications of one-component polyurethanes have been given. A new unexplored niche for the research on waste recycling for the production of two components has been identified.

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Section: Adverse Effects Of Using Waste Materials—critical Discussionmentioning

confidence: 99%