Chemical and Thermo-Mechanical Properties of Waterborne Polyurethane Dispersion Derived from Jatropha Oil

Saalah, Sariah; Abdullah, Luqman Chuah; Aung, Min Min; Salleh, Mek Zah; Biak, Dayang Radiah Awang; Basri, Mahiran; Jusoh, Emiliana Rose; Mamat, Suhaini; Al-Edrus, Syeed Saifulazry Osman

doi:10.3390/polym13050795

Cited by 21 publications

(16 citation statements)

References 39 publications

(48 reference statements)

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“…In the case of neat WBPU film, the characteristic vibrational bands such as N-H stretching (ʋ N-H , 3600–3000 cm –1 ), H bonded urethane C=O stretching (ʋ C=O , H-bond urethane, 1700 cm –1 ), C-N stretching/N-H bending (ʋ N-H /δ N-H , 1550 cm –1 ) and symmetric C-H bending (δ C-H,sym , 1376 cm –1 ) were identified as listed in Table 2 [ 22 , 28 ]. There was a minimal side reaction to the formation of urea as no observable peak of the carbonyl group (C=O) between 1645 and 1635 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

Effect of Cellulose Nanofibrils on the Properties of Jatropha Oil-Based Waterborne Polyurethane Nanocomposite Film

et al. 2021

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The objective of this work was to study the influence of cellulose nanofibrils (CNF) on the physical, mechanical, and thermal properties of Jatropha oil-based waterborne polyurethane (WBPU) nanocomposite films. The polyol to produce polyurethane was synthesized from crude Jatropha oil through epoxidation and ring-opening method. The chain extender, 1,6-hexanediol, was used to improve film elasticity by 0.1, 0.25, and 0.5 wt.% of CNF loading was incorporated to enhance film performance. Mechanical performance was studied using a universal test machine as specified in ASTM D638-03 Type V and was achieved by 0.18 MPa at 0.5 wt.% of CNF. Thermal gravimetric analysis (TGA) was performed to measure the temperature of degradation and the chemical crosslinking and film morphology were studied using Fourier-transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FESEM). The results showed that when the CNF was incorporated, it was found to enhance the nanocomposite film, in particular its mechanical and thermal properties supported by morphology. Nanocomposite film with 0.5 wt.% of CNF showed the highest improvement in terms of tensile strength, Young’s modulus, and thermal degradation. Although the contact angle decreases as the CNF content increases, the effect on the water absorption of the film was found to be relatively small (<3.5%). The difference between the neat WPBU and the highest CNF loading film was not more than 1%, even after 5 days of being immersed in water.

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Section: Resultsmentioning

confidence: 99%

Effect of Cellulose Nanofibrils on the Properties of Jatropha Oil-Based Waterborne Polyurethane Nanocomposite Film

et al. 2021

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“…Polyols derived from vegetable oils have been the subject of extensive research. Hydroformylation [18], ozonolysis [19], amidationesterification [20], metathesis [21], and epoxidation-ring opening [22], coupling of thiol-ene with mercaptoethanol [23] have all been used to achieve this, and all have successfully provided polyol with the desired properties; moreover, petrochemical-based isocyanates are replaced by bio-based isocyanate to remove toxicity such as partially bio-based aliphatic isocyanate. These impart water resistance, good mechanical strength, and flexibility to the PU network [24].…”

Section: Bio-based Polyurethanementioning

confidence: 99%

Assessment of Bio-Based Polyurethanes: Perspective on Applications and Bio-Degradation

et al. 2022

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Among numerous synthetic macromolecules, polyurethane in its different forms has proven its sheer dominance and established a reputation as a reliable and trusted material due to its proficiency in terms of superior properties, which include: high mechanical strength and abrasion resistance, good durability, good adhesion, good thermal stability, excellent chemical and weathering resistance. Synthetic polyurethane materials are non-biodegradable, poisonous, and use petrochemical-based raw materials, which are now depleting, leading to a surge in polyurethane production costs. Bio-based polyurethanes (PU) have been synthesized by researchers in recent decades and have mostly overtaken petrochemical-based PU in terms of challenges such as solid pollution, economic effectiveness, and availability of raw materials. Enormous kinds of available bio-renewable sources as predecessors for the production of polyols and isocyanates have been explored for the development of “greener” PU materials; these bio-based polyurethanes have significant potential to be used as future PU products, with a partial or total replacement of petroleum-based polyurethanes, due to increasing concern about the environment, their relatively low cost and biodegradability. This critical review concentrates on the possibilities of renewable sources to be used for polyurethane production and gives a clear perspective on the journey, utilization, and recent advancements in the field of different bio-based polyurethane polymers that have arisen over the last decade.

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“…Among a diverse range of viscoelastic materials, the water borne dispersions (WBDs) are vibrant facilitator in a number of applications; in particular, its usage is indispensable in the field of medicine. The unique operational properties of WBD allow it to be attached to the surface of a substrate with a slight pressure, which can even be applied with a finger, for a very short time, depending on the wettability of the adhesive and its potential substrate [ 1 , 2 , 3 , 4 , 5 ]. It is one of the abundantly used products in daily life [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…The unique operational properties of WBD allow it to be attached to the surface of a substrate with a slight pressure, which can even be applied with a finger, for a very short time, depending on the wettability of the adhesive and its potential substrate [ 1 , 2 , 3 , 4 , 5 ]. It is one of the abundantly used products in daily life [ 4 , 5 , 6 , 7 ]. Although WBD appears as a very common class of dispersions, its mechanism is actually more complex than anyone might perceive [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…It is one of the abundantly used products in daily life [ 4 , 5 , 6 , 7 ]. Although WBD appears as a very common class of dispersions, its mechanism is actually more complex than anyone might perceive [ 5 , 6 , 7 , 8 ]. The unique wetting propensity assists to acquire obligatory contact with the substrate both on plane and bumpy surfaces alike contingent on the low modulus of elasticity.…”

Section: Introductionmentioning

confidence: 99%

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Role of Macrodiols in the Synthesis and Thermo-Mechanical Behavior of Anti-Tack Water Borne Polyurethane Dispersions

2022

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The texture and molecular weight of polymer drastically affect the adhesion or tack strength. Waterborne polyurethane dispersions (WBPU) have been prepared using two different macrodiols of hydroxyl terminated polybutadiene (HTPB; Mn = 2912 g/mol) and four compositions of Polypropylene glycol (PPG Mn = 425, 1000, 2000, 2700 g/mol). The contents of the macrodiols have been varied using HTPB as 5, 10 and 15 mol%. The prepolymer of HTPB and Poly propylene glycol (PPG) have been developed using 4,4-Methylene bis(cyclohexyl isocyanate) (H12MDI) which is extended using 1, 4 butanediol (BD) followed by the dispersion of polymers in deionized water. Fourier Transform Infra-red spectroscopy (FTIR) is used to confirm the desired PU linkage. The probe tack graphs for tack analysis have not shown any plateau indicating absence of fibrillation. Two different values of glass transition temperature (Tg) have been observed for each dispersion using Differential Scanning Calorimetry(DSC). Storage modulus (E′) up to 3.97 MPa and (tanδ/E′) from 0.01–0.30 MPa−1 has been observed via Dynamic Mechanical Analysis (DMA). Introducing the HTPB has resulted in a decrease in the values of (tanδ/E′). No adhesion favorable parameters have been retrieved, indicating the molar variation a key factor in the development of anti-tack dispersions.

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Chemical and Thermo-Mechanical Properties of Waterborne Polyurethane Dispersion Derived from Jatropha Oil

Cited by 21 publications

References 39 publications

Effect of Cellulose Nanofibrils on the Properties of Jatropha Oil-Based Waterborne Polyurethane Nanocomposite Film

Effect of Cellulose Nanofibrils on the Properties of Jatropha Oil-Based Waterborne Polyurethane Nanocomposite Film

Assessment of Bio-Based Polyurethanes: Perspective on Applications and Bio-Degradation

Role of Macrodiols in the Synthesis and Thermo-Mechanical Behavior of Anti-Tack Water Borne Polyurethane Dispersions

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