The influence of crude glycerol and castor oil-based polyol on the structure and performance of rigid polyurethane-polyisocyanurate foams

Hejna, Aleksander; Kirpļuks, Miķelis; Kosmela, Paulina; Cābulis, Uģis; Haponiuk, Józef T.; Piszczyk, Łukasz

doi:10.1016/j.indcrop.2016.10.023

Cited by 129 publications

(100 citation statements)

References 61 publications

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“…The foams synthesized with 2% of DBTDL showed the best cells homogeneity, despite higher diameter cells, as observed in Figure 5b. The cells average diameter of the foams produced in this present process is smaller than the data reported in the literature of foams synthesizes from pre-polymerized castor oil [29], which is an important result for our foam uses.…”

Section: Resultscontrasting

confidence: 56%

“…The foams synthesized in this study presented better results in comparison to those reported in the literature for foams derived from renewable raw materials, whose values vary between 0.0233 -0.0505 W m -1 K -1 , suggesting that these materials have a potential use on thermal insulation [23,41,42]. These thermal conductivity results are also better than those found for foams produced from pre-treatment reactions of castor oil, by using a very simple an inexpensive method of production [19,29].…”

Section: Resultssupporting

confidence: 48%

“…Recently, a work was published presenting a polyol production from the polymerization of glycerol followed by condensation of this polymerized material with castor oil. After this, rigid polyurethane foams were synthesized by partial substitution of a petrochemical polyol with the polyol produced [29]. These reactions are usually performed in the presence of an alcohol and the use glycerol, a coproduct from biodiesel production, have been also extensively studied.…”

Section: Introductionmentioning

confidence: 99%

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Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

Carriço¹,

Fraga²,

Carvalho³

et al. 2017

Preprint

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Rigid polyurethane foams were synthesized using a renewable polyol from the simple physical mixture of castor oil and crude glycerol. The effect of the catalyst and blowing agent in the foams properties was evaluated. The use of physical blowing agent (cyclopentane and n-pentane) allowed obtaining foams with smaller cells in comparison with the foams produced with a chemical blowing agent (water). The increase of water content caused a decrease of density, thermal conductivity, compressive strength and Young's modulus, which indicates that the increment of CO2 production contributes to the formation of larger cells. Higher amount of catalyst in the foam formulations caused a slight density decrease and an increase small significance of thermal conductivity, compressive strength and Young's modulus values. These green foams presented properties that indicate a great potential to be used as thermal insulation, as density (23 -41 kg m -3 ), thermal conductivity (0.0128 -0.0207 W m -1 K -1 ), compressive strength (45 -188 kPa) and Young's modulus (3 -28 kPa). These biofoams are also environmental friendly alternatives and can aggregate revenue to biodiesel industry, contributing for reduction of this fuel prices.

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Section: Resultscontrasting

confidence: 56%

Section: Resultssupporting

confidence: 48%

Section: Introductionmentioning

confidence: 99%

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Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

Carriço¹,

Fraga²,

Carvalho³

et al. 2017

Preprint

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“…previously observed [33]. Changes in cellular structure can be also related to the lower viscosity of applied bio-polyol in comparison to Rokopol RF55, which enabled generation of more uniform structure.…”

Section: Resultsmentioning

confidence: 78%

The Study on Application of Biopolyols Obtained by Cellulose Biomass Liquefaction Performed with Crude Glycerol for the Synthesis of Rigid Polyurethane Foams

et al. 2017

Self Cite

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In this work rigid polyurethane foams (PUR) were obtained by replacement of 0-70 wt% of petrochemical polyol with biopolyol obtained via cellulose liquefaction in presence of crude glycerol. The foams with different content of a bio-polyol were prepared by single step method for NCO/OH ratio equals 1.5. The prepared materials were analyzed in terms of their morphology, chemical structure, thermal stability and basic physical and mechanical properties. The effects of photo-oxidative and thermo-oxidative aging on chemical structure, apparent density and mechanical properties of the biomass based rigid polyurethane foams were investigated and discussed.

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“…It can be seen that modification of condensed glycerol was justifiable. Generally, procedure of biopolyol preparation, together with its properties, was described in our previous work [33].…”

Section: Synthesis Of Bio-based Polyolmentioning

confidence: 99%

Structure, Mechanical, Thermal and Fire Behavior Assessments of Environmentally Friendly Crude Glycerol-Based Rigid Polyisocyanurate Foams

et al. 2017

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modifications showed also positive impact on the mechanical performance of rigid foams. Increase of crosslink density resulted in enhancement of compressive strength by more than 100%. Incorporation of prepared biopolyol resulted in enhancement of thermal stability and changes in degradation pathway. Up to 35 wt% share of crude glycerol-based polyol, foams showed similar flammability as reference sample, which can be considered very beneficial from the environmental point of view.

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The influence of crude glycerol and castor oil-based polyol on the structure and performance of rigid polyurethane-polyisocyanurate foams

Cited by 129 publications

References 61 publications

Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

The Study on Application of Biopolyols Obtained by Cellulose Biomass Liquefaction Performed with Crude Glycerol for the Synthesis of Rigid Polyurethane Foams

Structure, Mechanical, Thermal and Fire Behavior Assessments of Environmentally Friendly Crude Glycerol-Based Rigid Polyisocyanurate Foams

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