Microstructure and properties of polyurethanes derived from castor oil

Corcuera, María Ángeles; Rueda, Lorena; d’Arlas, Borja Fernández; Arbelaiz, A.; Marieta, Cristina; Mondragón, Iñaki; Eceiza, Arantxa

doi:10.1016/j.polymdegradstab.2010.03.001

Cited by 150 publications

(121 citation statements)

References 49 publications

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“…7, the higher percent weight of FP2.52CyW ash compare with FP2.52Cy1.25 is due to its high presence of the aromatic group in both polyol and isocyanate. The produced foams, especially FP2.52CyW, have the same thermal stability [27][28] compared with the sample that is produced by Urethane Co.…”

Section: Fp252cymentioning

confidence: 91%

See 1 more Smart Citation

Characterization of Rigid Polyurethane Foam Prepared from Recycling of PET Waste

Ghaderian¹,

Haghighi²,

Taromi³

et al. 2015

Period. Polytech. Chem. Eng.

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Section: Fp252cymentioning

confidence: 91%

“…7. It was proposed that the thermo-oxidative degradation of RPUFs is primarily a degradation process, which starts at about 190-205 °C, and the second decomposition was started at 250-300 °C, and reached to 420-450°C that is related to burn of remain ash [27][28]. Where, these experiments were done in air atmosphere.…”

Section: Thermal Conductive Coefficientmentioning

confidence: 99%

Characterization of Rigid Polyurethane Foam Prepared from Recycling of PET Waste

Ghaderian¹,

Haghighi²,

Taromi³

et al. 2015

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

“…The stability of the PU is related to the hard segment nature (rigid aromatic ring of MDI and TKL), soft segment (introduced by flexible chains of castor oil) and the molar ratio of the hard segment to soft segment [32]. In general, the thermal degradation of polyurethane occurs in a two to three steps, and the composition of the decomposed products depends on the structure of the PU material [33].…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

Bio-based polyurethane prepared from Kraft lignin and modified castor oil

Tavares¹,

Boas²,

Schleder³

et al. 2016

Express Polym. Lett.

117

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Abstract. Current challenges highlight the need for polymer research using renewable natural sources as a substitute for petroleum-based polymers. The use of polyols obtained from renewable sources combined with the reuse of industrial residues such as lignin is an important agent in this process. Different compositions of polyurethane-type materials were prepared by combining technical Kraft lignin (TKL) with castor oil (CO) or modified castor oil (MCO1 and MCO2) to increase their reactivity towards diphenylmethane diisocyanate (MDI). The results indicate that lignin increases the glass transition temperature, the crosslinking density and improves the ultimate stress especially for those prepared from MCO2 and 30% lignin content from 8.2 MPa (lignin free) to 23.5 MPa. Scanning electron microscopy (SEM) micrographs of rupture surface after uniaxial tensile tests show ductile-to-brittle transition. The results show the possibility to develop polyurethane-type materials, varying technical grade Kraft lignin content, which cover a wide range of mechanical properties (from large elastic/low Young modulus to brittle/high Young modulus polyurethanes).

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“…Furthermore, these polymers based on renewable resources have often possessed similar properties compared with their petroleum-based counterparts. Up to now, a large quantity of bio-based polymeric materials, such as polylactic acid (PLA) [8], poly(hydroxyalkanoates) (PHA) [9], and castor oil based polyamide [10], have already been commercialized. However, compared with the achieved progress on bio-based thermoplastics, the research on bio-based thermosetting resins, especially the thermosetting resins with high glass transition temperature (higher than 100°C) and comparable mechanical properties with petroleum-based counterparts are very limited.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a bio-based epoxy with comparable properties to those of petroleum-based counterparts

Liu¹,

Huang²,

Jiang³

et al. 2012

Express Polym. Lett.

126

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Abstract. In this paper a bio-based epoxy with outstanding thermal and mechanical properties was synthesized using a rosin-based epoxy monomer and a rosin-based curing agent. The chemical structures of rosin based epoxy monomer and curing agent were confirmed by Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared (FT-IR) spectra. The flexural mechanical and dynamic mechanical properties as well as thermal stability of the cured epoxy were investigated. The results showed that the cured epoxy exhibited a glass transition temperature (T g ) of 164°C and its flexural strength and modulus were as high as 70 and 2200 MPa, respectively. This indicated that a wholly bio-based epoxy resin possessing high performance was successfully obtained.

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Microstructure and properties of polyurethanes derived from castor oil

Cited by 150 publications

References 49 publications

Characterization of Rigid Polyurethane Foam Prepared from Recycling of PET Waste

Characterization of Rigid Polyurethane Foam Prepared from Recycling of PET Waste

Bio-based polyurethane prepared from Kraft lignin and modified castor oil

Preparation of a bio-based epoxy with comparable properties to those of petroleum-based counterparts

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