Polyetherols and polyurethane foams from starch

Lubczak, Renata; Szczęch, Dominik; Broda, Daniel; Wojnarowska-Nowak, Renata; Kus‐Liśkiewicz, Małgorzata; Dębska, Bernardetta; Lubczak, Jacek

doi:10.1016/j.polymertesting.2020.106884

Cited by 16 publications

(10 citation statements)

References 26 publications

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“…Our former study has demonstrated that fully aliphatic PUR foams based on flexible polyester-ether chains are easily metabolized and used as carbon and nitrogen sources by various microorganisms . To further support microorganism nutrition demands, biodegradable natural fillers (typically polysaccharides) can be incorporated into the PUR foam. , The addition of polysaccharides (very often starch and its derivatives) has been shown to increase the rate of PUR biodegradation and susceptibility to microbial growth. − On the other hand, incorporation of a readily biodegradable polysaccharide component into the PUR foam can lead to deterioration of its physical and mechanical properties and thus to a shortening of the durability of the PUR carrier. Moreover, a negative scenario where the biodegradation of the polysaccharide filler causes only physical disintegration of the plastic product while highly resistant microplastic debris is formed must be strictly avoided.…”

Section: Introductionmentioning

confidence: 99%

Open-Cell Aliphatic Polyurethane Foams with High Content of Polysaccharides: Structure, Degradation, and Ecotoxicity

Skleničková

Vlčková

Abbrent

et al. 2021

ACS Sustainable Chem. Eng.

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Fully aliphatic (isocyanurate ring-based) polyesterether polyurethane (PUR) foams have been developed, and the influence of starch and 2-hydroxyethyl cellulose (HEC) additives on their structure, properties, ecotoxicity, and (abiotic and biotic) degradation has been studied. These PUR foams designed as hydrophilic open-porous materials are predisposed to enzymatic hydrolysis with potential application as cellular carriers and an alternative nutrient source for activated sludge in wastewater treatment plants. In comparison to the neat (nonmodified) PUR foam, the PUR foams with incorporated starch and HEC modifiers exhibited a tougher character and a slightly increased open-cell content but on the other hand a significantly coarser cellular structure with much larger cell sizes and reduced water absorption. The progress of 6-week abiotic hydrolysis was characterized in detail, showing almost a complete decomposition of ester groups, a partial degradation of urethane linkages, and a fully intact isocyanurate ring. The extent of biodegradation by means of bacteria was similar for all tested PUR foams, while fungus biodegradation was more efficient in starch and HEC-modified PUR foams. The leachates from both starch-and HEC-modified foams exhibited somewhat higher ecotoxicity for higher organisms, here represented by Daphnia magna, due to higher contents of leached substances.

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Section: Introductionmentioning

confidence: 99%

Open-Cell Aliphatic Polyurethane Foams with High Content of Polysaccharides: Structure, Degradation, and Ecotoxicity

Skleničková

Vlčková

Abbrent

et al. 2021

ACS Sustainable Chem. Eng.

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“…Lubczak et al [134] have synthesized bio-polyol from starch in an aqueous solution. The products were mixtures of the starch-derived polyetherols and the products of hydroxyalkylation of water.…”

Section: Polyurethane Foamsmentioning

confidence: 99%

Recent Advances in Development of Waste-Based Polymer Materials: A Review

2022

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Limited petroleum sources, suitable law regulations, and higher awareness within society has caused sustainable development of manufacturing and recycling of polymer blends and composites to be gaining increasing attention. This work aims to report recent advances in the manufacturing of environmentally friendly and low-cost polymer materials based on post-production and post-consumer wastes. Sustainable development of three groups of materials: wood polymer composites, polyurethane foams, and rubber recycling products were comprehensively described. Special attention was focused on examples of industrially applicable technologies developed in Poland over the last five years. Moreover, current trends and limitations in the future “green” development of waste-based polymer materials were also discussed.

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“…The synthesis of polymers from renewable resources has been investigated by leading research teams from different countries for more than 40 years; the first review articles about this topic were published in the early 2000s [ 6 , 7 , 8 ]. Taking into account the newest trends in the development of polymeric materials, including PUR foams, in addition to their modification using renewable raw and recycled materials, a partial or full replacement of petrochemical polyols with bio-polyols is preferred [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. Kurańska et al have studied rigid PUR foams produced with used cooking oil.…”

Section: Introductionmentioning

confidence: 99%

Scale-Up and Testing of Polyurethane Bio-Foams as Potential Cryogenic Insulation Materials

et al. 2022

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This article compares the properties of closed-cell PUR bio-foams produced on a laboratory scale and on an industrial scale. In the formulation used, the polyol premix contained 40 wt.% of a bio-polyol based on rapeseed oil. Selected useful properties of the foams obtained on the two scales and the use of one-step and spraying methods were compared. In the case of the spraying method, the experimental system was compared to a commercial one. Given the possibility of applying the bio-foams in insulation systems for cryogenic and liquefied natural gas (LNG) applications, a compressive strength analysis of the foams was carried out at room temperature as well as at −196 °C. It was found that the foams modified with the bio-polyol were characterized by a higher compressive strength at low temperatures than commercial foams based on a petrochemical polyol.

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Polyetherols and polyurethane foams from starch

Cited by 16 publications

References 26 publications

Open-Cell Aliphatic Polyurethane Foams with High Content of Polysaccharides: Structure, Degradation, and Ecotoxicity

Open-Cell Aliphatic Polyurethane Foams with High Content of Polysaccharides: Structure, Degradation, and Ecotoxicity

Recent Advances in Development of Waste-Based Polymer Materials: A Review

Scale-Up and Testing of Polyurethane Bio-Foams as Potential Cryogenic Insulation Materials

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