Water vapour and grease resistance properties of paper coating based starch-bentonite clay

Khairuddin, Khairuddin; Nurhayati, Nanik Dwi; Shodik, Imam Syafei Jafar; Pham, Trinh

doi:10.1088/1742-6596/1153/1/012090

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…Hallam and Nutbeen (2012) showed that paper's resistance to permeability, in general, can be enhanced by coating it with specialized clay having a large particle size and a very high aspect ratio. Khairuddin et al (2019) showed increases in grease resistance and water vapor permeability when paper was coated with a mixture of starch and bentonite clay. Related work has been reported by Andersson et al (2002), Koivula et al (2016), and Tsurko et al (2017).…”

Section: Other Pulpsmentioning

confidence: 99%

Greaseproof paper products: A review emphasizing ecofriendly approaches

Hubbe

Pruszynski²

2020

BioRes

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A cost-effective, eco-friendly, and health-promoting packaging system that prevents the passage of greases and oils would fulfill an urgent need. This review discusses what is known about the highly divergent technological paths that have been studied to achieve these objectives. Before the emergence of plastic films, the paper industry addressed these objectives in two ways, by parchmentizing and by high levels of refining of the fibers. Parchmentizing means passing the paper through a bath of concentrated sulfuric acid, followed by rinsing out the acid and drying the sheet. Though both parchmentized paper and highly refined greaseproof paper products are still made, they have been substantially displaced by oil-repellent fluorocarbon treatments of paper. The fluorocarbon treatments have allowed papermakers to achieve greaseproof properties with ordinary paper machine equipment at ordinary refining levels and without a need to immerse the paper in strong acid. Now, however, due to environmental concerns and regulations, the paper industry needs more options. Some promising directions in published research include advances in chemistry, superoleophobic surfaces, nanocellulose films, and systems to protect nanocellulose films from the effects of moisture.

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Section: Other Pulpsmentioning

confidence: 99%

Greaseproof paper products: A review emphasizing ecofriendly approaches

Hubbe

Pruszynski²

2020

BioRes

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“…In addition, starch [27,28], chitosan [29,30], nanocellulose [31,32] and protein [33] have successfully caught the attention of researchers and paper industries for the preparation of water-and oil-repellent [8]. Dhwani Kansal et al [28] coated the kraft paper with starch and corn protein separately, and the coated paper demonstrated good tolerance to oil and water, resulting in a Cobb 60 value of 4.81 g•m −2 and a kit rating of 12/12.…”

Section: Introductionmentioning

confidence: 99%

Fluorine-Free Compound Water- and Oil-Repellent: Preparation and Its Application in Molded Pulp

et al. 2023

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Molded pulp is considered an alternative to plastic packaging for its low cost, recyclability and non-pollution characteristics. However, the range of its applications has been limited by hydrophilicity and lipophilicity. Presented herein is a facile and straightforward method for the preparation biodegradable water- and oil-repellant for molded pulp. Sodium alginate-based oil repellent and PDMS-based water repellent were prepared by cross-linking and modification. The two were then mixed in various ratios to obtain compound water- and oil-repellent, which was applied to the molded pulp by dip-coating. The coated paper demonstrated excellent oil resistance (with a kit rating of 11/12) and outstanding water resistance (with a water contact angle of 121.9° and water absorption of 25.8%). This novel, eco-friendly, water- and oil-resistant molded pulp coating prepared from biodegradable and food-contactable materials is a potential candidate to replace petroleum-based coatings and has excellent possibilities to be manufactured on a large-scale intended for food and non-food contact applications.

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“…27,28 In some fields, water invasion is inevitable when bentonite is in service. [29][30][31][32][33][34] The bentonite hydration initially occurs at the crystalline level, 35 and osmotic hydration follows till the disintegration of the whole structure. 36 The hydration of bentonite leads to a series of issues.…”

Section: Introductionmentioning

confidence: 99%

“…31,32 In the coating industry, durability and stability face challenges. 33,34 To solve the above problems, inorganic/organic salts, [37][38][39] nanoparticles, 40,41 surfactants, 42,43 polymers 44,45 have been developed to inhibit the hydration of bentonite. Polymer inhibitor is a concern because of its favorable performance.…”

Section: Introductionmentioning

confidence: 99%

Properties and mechanism of a poly(ionic liquid) inhibitor contained bi‐functional groups for bentonite hydration

Wang

Gao

Jia

et al. 2021

J of Applied Polymer Sci

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Present polymer inhibitors depend on a major inhibitory group to restrain bentonite hydration, and monomer design is concerned to improve the inhibition and stability through complex copolymerization. Conveniently, a homopolymer (PIL-NH 2 ) that contained primary amine and cationic imidazolium as bi-functional groups was proposed, aiming to provide two synergistic inhibitory modes. Comprehensive methods were conducted to characterize the chemical structure and inhibitory performance of PIL-NH 2 . The ζ potential absolute value of bentonite suspension was decreased by PIL-NH 2 from 28.7-33.3 mV to 4-7 mV, and the increment of bentonite particle size d 50 was observable from 1.83892 μm to over 200 μm. With water squeezed out, the lattice spacing d 001 of hydrated bentonite was reduced from 1.9070 to 1.2683 nm due to PIL-NH 2 intercalation. The ESEM images revealed that inhibited bentonite showed a tight structure with classical dehydration phenomenon, and the hydrogen bond between PIL-NH 2 and bentonite was further confirmed according to the FT-IR result. In mechanism analysis, the electrostatic attraction and hydrogen bond existed simultaneously for PIL-NH 2 to adsorb bentonite. The two adsorption modes from bi-functional groups were synergistic to improve inhibition remarkably. PIL-NH 2 maintained high performance during the whole hydration process, including crystalline hydration, osmotic hydration, and hydrated dispersion.

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Water vapour and grease resistance properties of paper coating based starch-bentonite clay

Cited by 5 publications

References 12 publications

Greaseproof paper products: A review emphasizing ecofriendly approaches

Greaseproof paper products: A review emphasizing ecofriendly approaches

Fluorine-Free Compound Water- and Oil-Repellent: Preparation and Its Application in Molded Pulp

Properties and mechanism of a poly(ionic liquid) inhibitor contained bi‐functional groups for bentonite hydration

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