Starch Stabilized Polyvinyl Acetate Emulsion: Review

Gadhave, Ravindra V.; Mahanwar, Prakash A.; Gadekar, Pradeep T.

doi:10.1177/204124791800900203

Cited by 20 publications

(13 citation statements)

References 67 publications

(64 reference statements)

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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 a wood adhesive [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%

Effect of glutaraldehyde on thermal and mechanical properties of starch and polyvinyl alcohol blends

Gadhave

Mahanwar

Gadekar

2019

Designed Monomers and Polymers

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The aim of this study is to analyze the various compositions of polyvinyl alcohol (PVA) and starch (S) blends. The blends have been cross-linked with glutaraldehyde to enhance its properties. The hydroxyl groups of PVA and starch react with glutaraldehyde via formation of acetal bonds hence crosslinking could take place. The cross-linking of glutaraldehyde is observed with the help of various analytical methods such as differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR). The presence of two highly reactive alpha protons makes glutaraldehyde more reactive and acidic in nature. The higher reactivity of glutaraldehyde, at higher dosages leads to reduction in H-bonding of PVA and starch. The cross-linked blends showed better thermal and mechanical properties. Viscosity, tensile strength, pencil hardness, and ultimate stress were evaluated to estimate the changes due to cross-linking. It was observed that the mechanical properties are directly proportional to the amount of starch as the starch hydroxyl groups are easily accessible for the cross-linking reaction. The cross-linked blend showed better cohesion between its chains, thereby increasing the glass transition temperature. It was reflected in the subsequent increase in tensile strength properties.

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Section: Introductionmentioning

confidence: 99%

Effect of glutaraldehyde on thermal and mechanical properties of starch and polyvinyl alcohol blends

Gadhave

Mahanwar

Gadekar

2019

Designed Monomers and Polymers

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“…Beberapa cara dapat dilakukan untuk meningkatkan karakteristik PVAc, diantaranya adalah dengan penambahan nanowollastonite (Taghiyari et al, 2020), penambahan starch (Gadhave et al, 2018), nanomaterial asam sitrat (Roto et al, 2020), nanofibril selulosa (Chaabouni & Boufi, 2017 (Berber, 2013).…”

Section: Pvacunclassified

Kajian Pustaka Karakterisasi Perekat Polivinil Asetat Berbasis Air dengan Variabel Surfaktan

Sihombing

Fathiyyah

Kumara

et al. 2021

Kovalen

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Polyvinyl acetate (PVAc) is an applicative polymer used as an adhesive material for one to another. These polymers can be synthesized through an emulsion polymerization process. In the industrial world, the process of making adhesive still involves environmentally unfriendly organic compounds containing xylene, benzene, and toluene. Therefore, water-based adhesive was introduced as an alternative to the PVAc synthesis solution. The aim of this literature review is to identify the type of surfactants used and analyze the PVAc characterization. This literature study focuses on the characterization of water-based PVAc with non-ionic nonylphenol (NP) surfactants including: NP-06, NP-10, NP 10 + 30, NP-30 and NP-40. Another surfactant used in this literature study is anionic surfactant Sodium Lauryl Sulfate (SLS) in units of Critical Micelle Concentration (CMC) including 1 CMC, 3 CMC, 5 CMC, 10 CMC, and 15 CMC. The result is a similarity in phenomena between the two types of surfactants. There is an increase in viscosity and a decrease in the value of the particle size as the surfactant increasing concentration used. However, in terms of the particle size, there is an optimal value where the specific NP surfactant concentration produces specific particle size with grit and at the specific SLS surfactant concentration produces relatively similar particle size.

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“…The blending of starch with PVAc opened a new dimension of possibly or completely replacing petrochemical-based polymer, including PVA [44]. Graft polymerization of vinyl acetate monomer starch as shown in Figure 3, and its usage in wood adhesives have gained interest among researchers and industries [41] [44] [45] [46]. Improvements in thermal stability with bonding strength and water resistance are shown by graft polymerization of vinyl acetate on corn starch [47].…”

Section: Introductionmentioning

confidence: 99%

Cellulose Stabilized Polyvinyl Acetate Emulsion: Review

Dhawale¹,

Vineeth²,

Gadhave³

et al. 2021

OJOPM

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The global energy crisis and overconsumption of non-renewable resources have depleted natural resources, climatic changes with global warming, and rise in sea level. The research on alternate sources and chemicals has resulted in the usage of green materials. These biomaterials are sustainable sources, biodegradable, and are abundant in nature. The replacement of petrochemicals with biopolymers has gained much importance in this aspect. Conventionally, polyvinyl alcohol is employed as a protective colloid in polyvinyl acetate adhesive. Polyvinyl alcohol has the limitation of petroleum origin, is replaced by biopolymers. Starch being a biopolymer, has gained interest in replacing polyvinyl alcohol as a stabilizer. Cellulose has a low cost, and the most abundant biomaterial finds application as a reinforcing agent in conventional adhesives. Exploring cellulose as a stabilizer for polyvinyl acetate emulsion polymerization with reinforcement has created potential applicability of cellulose in adhesives. Surface hydroxyl groups in cellulose act as sites for functionalization, making it material for the adhesive sector. This review paper aims to showcase biomaterials, namely starch, and cellulose, in the adhesive field. A detailed review of cellulose as functional filler for polyvinyl acetate emulsion adhesives has been explained.

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Starch Stabilized Polyvinyl Acetate Emulsion: Review

Cited by 20 publications

References 67 publications

Effect of glutaraldehyde on thermal and mechanical properties of starch and polyvinyl alcohol blends

Effect of glutaraldehyde on thermal and mechanical properties of starch and polyvinyl alcohol blends

Kajian Pustaka Karakterisasi Perekat Polivinil Asetat Berbasis Air dengan Variabel Surfaktan

Cellulose Stabilized Polyvinyl Acetate Emulsion: Review

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