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

Kosmela, Paulina; Hejna, Aleksander; Formela, Krzysztof; Haponiuk, Józef T.; Piszczyk, Łukasz

doi:10.1007/s10924-017-1145-8

Cited by 41 publications

(15 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lower viscosity (greater mobility of chains, functional groups) and the higher concentration of reactive groups caused acceleration of the reaction of allophanate crosslinks, urethane, and urea linkages. A similar effect was noted in other works [32]. The values of rise time and T MAX were also affected by the isocyanate index.…”

Section: Evaluation Of the Foaming Processsupporting

confidence: 88%

“…During the second step, with the temperature of the maximum degradation rate of 350 • C, hard segments of polyurethane were decomposed, and amines and carbon dioxide were formed [49]. For sample 250_LB30, an additional peak around 410 • C was observed, which was associated with biopolyol decomposition [32]. The third step of degradation, in the range of 430-570 • C, was related to the thermolysis of organic residues from previous steps [50].…”

Section: Ftir Spectra Analysismentioning

confidence: 99%

See 1 more Smart Citation

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

et al. 2020

Self Cite

View full text Add to dashboard Cite

The paper describes the preparation and characterization of rigid polyurethane-polyisocyanurate (PUR-PIR) foams obtained with biopolyol synthesized in the process of liquefaction of biomass from the Baltic Sea. The obtained foams differed in the content of biopolyol in polyol mixture (0–30 wt%) and the isocyanate index (IISO = 200, 250, and 300). The prepared foams were characterized in terms of processing parameters (processing times, synthesis temperature), physical (sol fraction content, apparent density) and chemical structure (Fourier transform infrared spectroscopy), microstructure (computer microtomography), as well as mechanical (compressive strength, dynamic mechanical analysis), and thermal properties (thermogravimetric analysis, thermal conductivity coefficient). The influence of biopolyol and IISO content on the above properties was determined. The addition of up to 30 wt% of biopolyol increased the reactivity of the polyol mixture, and the obtained foams showed enhanced mechanical, thermal, and insulating properties compared to foams prepared solely with petrochemical polyol. The addition of up to 30 wt% of biopolyol did not significantly affect the chemical structure and average cell size. With the increase in IISO, a slight decrease in processing times and mechanical properties was observed. As expected, foams with higher IISO exhibited a higher relative concentration of polyisocyanurate groups in their chemical structure, which was confirmed using principal component analysis (PCA).

show abstract

Section: Evaluation Of the Foaming Processsupporting

confidence: 88%

Section: Ftir Spectra Analysismentioning

confidence: 99%

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…To produce bio-polyols of suitable material properties for polyurethane (PU) production, liquefaction at 240 °C for 180 min, at 3% sulfuric acid loading, and biomass loading of 10–15% was preferred. In the production of PU materials, most research has focused on foamed materials [ 8 , 14 , 15 ]. However, the area of obtaining cross-linked not foamed polyurethane materials has not been explored in depth, with only a few works on this subject [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Highly Filled Glass Fiber/Carbon Fiber Polyurethane Composites with the Addition of Bio-Polyol Obtained through Biomass Liquefaction

et al. 2021

Self Cite

View full text Add to dashboard Cite

This work aims to investigate the process of obtaining highly filled glass and carbon fiber composites. Composites were manufactured using previously obtained cellulose derived polyol, polymeric methylene diphenyl diisocyanate (pMDI). As a catalyst, dibutyltin dilaurate 95% and Dabco® 33‑LV were used. It was found that the addition of carbon and glass fibers into the polymer matrix causes an increase in the mechanical properties such as impact and flexural strength, Young’s modulus, and hardness of the material. Moreover, the dynamic mechanical analysis (DMA) showed a significant increase in the material’s storage modulus and rigidity in a wide range of temperatures. The increase in glass transition of soft segments can be noticed due to the limitation of macromolecules mobility in the material. The thermogravimetric analysis showed a four step decomposition, with maximal degradation rate at TmaxII = 320–330 °C and TmaxIII = 395–405 °C, as well as a significant improvement of thermal stability. Analysis of the material structure using a scanning electron microscope showed the presence of material defects such as voids, fiber pull‑outs, and agglomerates of both fibers.

show abstract

“…The effect of anaerobic fertilization is not ideal when the substances (straw, energy crops, etc.) containing a large amount of cellulose and lignin are directly used, but the fermentation effect can be improved by pretreating the raw materials rich in such ingredients or mixing several raw materials (Paulina et al, 2018). In the same way, better gas production effect can be obtained by using catalyst.…”

Section: Strengthening Methodsmentioning

confidence: 99%

The Mixed Fermentation Technology of Solid Wastes of Agricultural Biomass

Zhang

Liu

et al. 2020

Front. Energy Res.

View full text Add to dashboard Cite

Due to the large quantity and wide range of solid wastes of the biomass, and the dual characteristics of pollution and resource utilization, the energy utilization of anaerobic fermentation can promote its pollution control, so the mixed fermentation technology of solid wastes of agricultural biomass was studied. Corn straw, pig manure, and kitchen waste were selected as solid wastes of agricultural biomass. A system including a temperature control device, a fermentation device and a gas gathering device is used to measure the content and pH value of biogas and methane. Physical, chemical, and biological pretreatment methods were used to strengthen the anaerobic reference of biomass, and the mixed fermentation of different biomass was used to complete the anaerobic fermentation of a variety of solid wastes of agricultural biomass. The results showed that pig manure and corn straw were suitable for medium temperature fermentation at 30 • C, while cow manure and corn straw were suitable for high temperature fermentation at 60 • C. In the process of anaerobic fertilization, when the ratio of cow dung to sludge is 2:1, 3:1, and 4:1 respectively, the methane content is shown as follows: (1) The first 130 days are relatively stable and then slowly decreased; (2) The first 120 days are slowly increased, and then it rises to the maximum value at 140 days and then remains unchanged; (3) It remains at 2% all the time. After the mixture of cow manure and sludge, the higher the proportion of cow manure is, the higher the pH value in the initial stage of anaerobic fertilization is. The higher the basicity of methanogens in the fermentation liquid inside the fermentation tank is, the higher the pH value of the system is, and the basicity of methanogens has a significant positive correlation with the crude protein content of biomass.

show abstract

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

Cited by 41 publications

References 54 publications

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

Study on the Structure-Property Dependences of Rigid PUR-PIR Foams Obtained from Marine Biomass-Based Biopolyol

Characterization of Highly Filled Glass Fiber/Carbon Fiber Polyurethane Composites with the Addition of Bio-Polyol Obtained through Biomass Liquefaction

The Mixed Fermentation Technology of Solid Wastes of Agricultural Biomass

Contact Info

Product

Resources

About