A molecular simulation analysis of influence of lignosulphonate addition on properties of modified 2-ethyl hexyl acrylate/methyl methacrylate/acrylic acid based pressure sensitive adhesive

Kasbe, Pratik S.; Kumar, Nityanshu; Manik, Gaurav

doi:10.1016/j.ijadhadh.2017.06.014

Cited by 26 publications

(3 citation statements)

References 41 publications

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“…In the past, researchers studied lignin-based polyurethane products, such as thermoplastics, elastomers, coatings, film adhesives, etc. (Saito et al 2013;Chauhan et al 2014;Jia et al 2015;Lee and Deng 2015;Oluwasina et al 2015;Zhang et al 2015;Sanjiv Kasbe et al 2017;Gadhave et al 2018). However, the chemical modification of lignin before preparation polyurethane increased the cost of preparation, while at the same time, the complex chemical and macromolecular structure of lignin made the elasticity and brittleness control of products difficult.…”

Section: Introductionmentioning

confidence: 99%

Preparations and properties of polyurethane adhesives modified by corn straw lignin

Sun

Lai

et al. 2020

BioRes

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The conversion of lignin into valuable products has attracted the interest of researchers. A series of modified polyurethane adhesives were prepared by blending corn straw enzymatic hydrolyzed lignin with polyester polyol and tolylene-2,4-diisocyanate. Mechanical properties, chemical structures, and thermal stability of the adhesives were characterized by mechanical properties tests, Fourier transform infrared spectrometry (FTIR), and thermogravimetric analysis (TGA). The results of shear strength test under room temperature and high temperature showed that the shear strength for modified polyurethane adhesives was improved by introduction of lignin. The introduction of lignin also improved the heat resistance of polyurethane adhesive. The TGA analysis results showed there were two stages in the thermal decomposition of the lignin blend modified polyurethane adhesive, and the maximum decomposition temperature of the first stage increased with the increase of lignin content, while the maximum decomposition temperature of the second stage decreased with the increase of lignin content. The TGA-FTIR combination analysis studied the main gas generated in the two decomposition stage’s peak times, of which CO2 was produced in the first stage, and CH4 was created in the second stage, indicating that the molecular chain fracture process of the two kinds of adhesives was similar in the whole decomposition process.

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Section: Introductionmentioning

confidence: 99%

Preparations and properties of polyurethane adhesives modified by corn straw lignin

Sun

Lai

et al. 2020

BioRes

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“…Due to its highly polar hydroxyl group, it also absorbs water readily, thereby joining the family of water soluble polymers. Its water solubility property plays an important role in making it compatible with various types of polymers [9] [10]. The PVA adhesive cures by evaporating water and forming a high strength H-bonding.…”

Section: Introductionmentioning

confidence: 99%

Study of Cross-Linking between Boric Acid and Different Types of Polyvinyl Alcohol Adhesive

Gadhave¹,

Mahanwar²,

Gadekar³

2019

OJPChem

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Polyvinyl alcohol (PVA) is water-soluble polymer manufactured by the saponification of polyvinyl acetate. The physical properties and its specific application depend on the degree of hydrolysis. To enhance the properties of different hydrolyzed PVA grades, it is generally chemically modified with various cross-linkers. Here, different degree hydrolyzed PVA grades with enhanced properties were achieved by cross-linking with boric acid. These samples were then characterized by Differential Scanning Calorimetry (DSC) and Gel permeation chromatography (GPC). For further analysis a film of samples were prepared by casting on glass plate. The effects of amount of boric acid and degree of hydrolysis of PVA on performance properties like tensile strength, pencil hardness and thermal properties like glass transition temperature were studied. The results showed that by cross-linking there was an increase in mechanical strength and thermal property.

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“…Starch is a relatively inexpensive and renewable product that can be obtained from multiple plant sources and that has been extensively used as wet end additive, coating binder, sizing agent, adhesive, and textile size [1] [2]. However, its bonding capacity is not strong enough to glue wood [3] [4] [5] [6] [7]. A few studies have been conducted on the potential of utilizing starch as wood adhesive.…”

Section: Introductionmentioning

confidence: 99%

Study on Various Compositions of Polyvinyl Alcohol and Starch Blends by Cross-Linking with Glyoxal

Gadhave¹,

Mahanwar²,

Gadekar³

2019

OJPChem

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The aim of this study is to analyze the various compositions of polyvinyl alcohol (PVA) and starch blends. The blends have been cross-linked with glyoxal to enhance its properties. The hydroxyl groups of PVA and starch react with glyoxal via formation of acetal bonds; hence crosslinking could take place. The cross-linking of glyoxal is observed in various analytical methods such as DSC and FTIR. The cross-linked blends showed better thermal and mechanical properties. Viscosity, tensile shear strength, pencil hardness and ultimate stress were evaluated to estimate the changes due to cross-linking. It was observed that the cross-linking is directly proportional to starch, since the starch hydroxyl groups are easily accessible for reacting. The cross-linked blend showed better cohesion between its chains, thereby increasing glass transition temperature. It was reflected in the subsequent increase in tensile strength properties.

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A molecular simulation analysis of influence of lignosulphonate addition on properties of modified 2-ethyl hexyl acrylate/methyl methacrylate/acrylic acid based pressure sensitive adhesive

Cited by 26 publications

References 41 publications

Preparations and properties of polyurethane adhesives modified by corn straw lignin

Preparations and properties of polyurethane adhesives modified by corn straw lignin

Study of Cross-Linking between Boric Acid and Different Types of Polyvinyl Alcohol Adhesive

Study on Various Compositions of Polyvinyl Alcohol and Starch Blends by Cross-Linking with Glyoxal

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