Surface modification of polypropylene with porous polyacrylamide/polydopamine composite coating

Dai, Jidong; Min, Liang; Ren, Pengfei; Fu, Yifu; Wang, Faming; Ge, Xin; Zhang, Tianzhu

doi:10.1016/j.matlet.2020.127487

Cited by 11 publications

(10 citation statements)

References 13 publications

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“…Using the universal testing machines, uniaxial tension (Wu et al 2019;Lee et al 2004;Zhai et al 2018;Houshyar et al 2005;Drozdova et al 2009) and flexural (Militký and Jabbar 2015;Tiwari et al 2021) tests are made to study creep of polypropylene composites. Nano-indentation tests (Rosa et al 2018;Dian et al 2020), a dynamic oscillatory rheometer (Kurt and Kasgoz 2021) and a dynamic mechanical analyser (Wang et al 2018;Houshyar et al 2005) are used to study the effects of chemical modification on the mechanical performance of polypropylene. Similarly, the creep and recovery behaviours of the polypropylene composites are studied at different temperatures (Wang et al 2018;Banik et al 2007;Militký and Jabbar 2015).…”

Section: Experimental Methodsmentioning

confidence: 99%

“…1 The flowchart of methodology used to determine the suitable approach and model for predicting the linear viscoelastic behaviour of BJ368MO polypropylene copolymer as wood (Lee et al 2004;Homkhiew et al 2013), silica (Rosa et al 2018), glass fibre (Berecz et al 2012) and e-glass (Zhai et al 2018). The creep behaviour of polypropylene blended with other polymers Dian et al (2020), Houshyar et al (2005), Banik et al (2007), and organic materials such as fibres (Militký and Jabbar 2015;Tiwari et al 2021;Hao et al 2014) and clay (Drozdova et al 2009) are studied using experimental, theoretical and computational methods.…”

Section: Introductionmentioning

confidence: 99%

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Characterising the linear viscoelastic behaviour of an injection moulding grade polypropylene polymer

Gebrehiwot

Espinosa-Leal

2021

Mech Time-Depend Mater

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The linear viscoelastic behaviour of an injection moulding grade polypropylene is studied using theoretical and computational methods. Polypropylene has a variety of engineering applications as a component. However, it commonly exhibits viscoelastic deformations. This paper analyses the creep and recovery responses of the BJ368MO polypropylene copolymer using the Burgers and generalised Maxwell models. Within the linear viscoelastic regime, an experimental creep strain at $20\ \text{MPa}$ 20 MPa is used to determine the rheological constants of the models. These constants (springs and dashpots) are determined using a nonlinear least-squares curve fitting of the experimental creep. Then they are used to predict the creep and recovery responses of the polymer at three different stresses, $10\ \text{MPa}$ 10 MPa , $12.5\ \text{MPa}$ 12.5 MPa and $15\ \text{MPa}$ 15 MPa . The experiments are made using tensile specimens designed according to the ASTM D638-14standard. The theoretical evaluations are made using the creep and recovery equations derived from their constitutive. Whereas COMSOL Multiphysics software is used during the finite element (FE) analyses. The results of the theoretical and FE calculations are verified using creep and recovery experiments. Based on the validation analyses, both viscoelastic models showed lower deviations from the experimental results when a computational approach is used. In addition, the viscoelastic models are compared by evaluating the residuals of the creep and recovery strain predictions. The theoretical analyses showed better predictions at $12.5\ \text{MPa}$ 12.5 MPa and $15\ \text{MPa}$ 15 MPa stresses when the generalised Maxwell model is used. However, the improvements are attributed to the recovery predictions. When FE is used, the Burgers model showed lower mean absolute percentage errors (MAPEs) in all creep and recovery predictions. The model has a minimum of 6.37% error at the $10\ \text{MPa}$ 10 MPa stress and a maximum of 8.23% error at the $15\ \text{MPa}$ 15 MPa . By comparison, the generalised Maxwell model showed a minimum of 9.24% error at $12.5\ \text{MPa}$ 12.5 MPa and a maximum of 12.8% error at $15\ \text{MPa}$ 15 MPa stresses. The novelty of this paper is on predicting the creep and recovery behaviour of the polymer using the FE and theoretical approaches in the linear viscoelastic regime. The findings suggest that the FE analyses using the Burgers viscoelastic material model provide better predictions, with all calculated errors falling below 10%.

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Section: Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterising the linear viscoelastic behaviour of an injection moulding grade polypropylene polymer

Gebrehiwot

Espinosa-Leal

2021

Mech Time-Depend Mater

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“…In a recent study, PP surface was treated with argon coupled plasma for the formation of hydroperoxides on its surface, which chemically reacted with DA as shown in Figure 5 [45]. In other studies, PP surface was treated (oxidized) with alkali or acid and then chemically modified with DA by a simple dip coating [54][55][56]. In another approach, PP nonwoven fabrics were grafted with 3-isopropenyl-α,α ′ -dimethylbenzene isocyanate and covalent coupling between isocyanate and amine group of DA resulted in the modified surface [57].…”

Section: Strategies Of the Surface Engineering/ Modificationmentioning

confidence: 99%

Surface engineering of personal protective equipments (PPEs) to prevent the contagious infections of SARS-CoV-2

Pandey

2020

Surface Engineering

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The outermost surfaces of Personal Protective Equipments (PPEs) interact with virus surfaceprotein as the first step during its transmission from aerosols and contacting surfaces, which can be tuned by surface engineering/modification. This report highlights the role of engineered surface chemistry of PPEs to avoid the spreading of the novel SARS-CoV-2 virus in hospitals. Physical properties of surfaces and spike-glycoprotein are correlated with the reported stability of SARS-CoV-2. The spike-protein is reported to be hydrophobic in nature with an isoelectric point of 5.9. Hence surface with both positive charge and hydrophobic groups are expected to achieve a strong binding with the surface spike-protein. Various surface engineering strategies of polypropylene and other materials with hybrid selfassembled monolayers and dopamine are discussed to design the mixed hydrophobic and charged surfaces. The strong surface-protein interactions may lead to severe conformational changes and destabilization of the viral envelope, which can disintegrate and inactivate the novel coronavirus.

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“…9 PDA is a material that has a similar chemical structure to eumelanin and easily synthesized. One of its most remarkable applications is the remediation of contaminated water, where PDA is used as part of a photocatalyst to increase its photoactivity [9][10][11] at the same time, it has been used for surface modication due to its excellent adhesion properties at almost all surfaces caused by its similar structure to the essential adhesive component of mussel protein (presence of amine, imine, and catechol groups), 12,13 hydrogen generation, 14 remotion of herbicides, 15 sensors for colorimetry or glucose, 16,17 photothermal therapy to treat cancer, 18 and for drug encapsulation and release. [19][20][21][22] The synthesis and versatility of PDA processing allow achieving a diverse variety of shapes ranging from hollow or solid spheres or core-shell particles to thin lms; it can even be used to decorate other particles.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of polydopamine sphere synthesis using TRIS: relationship between synthesis conditions and final properties

et al. 2023

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Surface modification of polypropylene with porous polyacrylamide/polydopamine composite coating

Cited by 11 publications

References 13 publications

Characterising the linear viscoelastic behaviour of an injection moulding grade polypropylene polymer

Characterising the linear viscoelastic behaviour of an injection moulding grade polypropylene polymer

Surface engineering of personal protective equipments (PPEs) to prevent the contagious infections of SARS-CoV-2

Kinetic study of polydopamine sphere synthesis using TRIS: relationship between synthesis conditions and final properties

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