Preparation and performance of thermoplastic starch and microcrystalline cellulose for packaging composites: Extrusion and hot pressing

Chen, Jie; Wang, Xia; Long, Zhu; Wang, Shuangfei; Zhang, Jingxian; Wang, Lei

doi:10.1016/j.ijbiomac.2020.10.117

Cited by 101 publications

(45 citation statements)

References 36 publications

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“…Thus, to obtain information on the hydrophilic/hydrophobic nature of the TPS-resin-based materials, the surface wettability was determined by water contact angle measurements ( Table 1 ). The neat TPS sample showed the lowest water contact angle value due to the number of hydroxyl groups from the native starch as well as glycerol, showing similar values to those reported for corn starch (with 25% amylose content) based formulations plasticized with glycerol [ 55 ]. Meanwhile, all TPS-resin blends showed higher WCA values than neat TPS.…”

Section: Resultssupporting

confidence: 72%

“…Likewise, all TPS-resin formulations became smaller and breakable, losing between 14% and 19% of the initial mass. The higher mass observed after one day for neat TPS can be related to the fact that starch absorbed water and swelled [ 55 ]. The loss of transparency is linked to the changes in the refractive index because of water absorption and the beginning of the formation of low molecular weight compounds as a result of hydrolytic degradation [ 22 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging

Pavón

Aldás

López‐Martínez

et al. 2021

Foods

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Completely biobased and biodegradable thermoplastic starch (TPS) based materials with a tunable performance were prepared for food packaging applications. Five blends were prepared by blending TPS with 10 wt%. of different pine resins derivatives: gum rosin (GR), disproportionated gum rosin (RD), maleic anhydride-modified gum rosin (CM), pentaerythritol ester of gum rosin (LF), and glycerol ester of gum rosin (UG). The materials were characterized in terms of thermo-mechanical behavior, surface wettability, color performance, water absorption, X-ray diffraction pattern, and disintegration under composting conditions. It was determined that pine resin derivatives increase the hydrophobicity of TPS and also increase the elastic component of TPS which stiffen the TPS structure. The water uptake study revealed that GR and LF were able to decrease the water absorption of TPS, while the rest of the resins kept the water uptake ability. X-ray diffraction analyses revealed that GR, CM, and RD restrain the aging of TPS after 24 months of aging. Finally, all TPS-resin blends were disintegrated under composting conditions during the thermophilic incubation period (90 days). Because of the TPS-resin blend’s performance, the prepared materials are suitable for biodegradable rigid food packaging applications.

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Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging

Pavón

Aldás

López‐Martínez

et al. 2021

Foods

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“…Microcrystalline cellulose (MCC) is mostly used as a filler because of its outstanding properties such as high crystallinity, high strength, low thermal expansion coefficient, low cost, low density, biodegradability, and no environmental pollution after disposal (Chen et al 2020). MCC can be produced from any material having a high content of cellulose by acid and alkali hydrolysis (Trache et al 2016), ultrasonic and extrusion methods (Abdullah et al 2016), steam explosion and radiation enzymatic process (Henriksson et al 2007) in order to use in pharmaceutical, cosmetic, food, packaging and polymer composite industries.…”

Section: Introductionmentioning

confidence: 99%

Effects of microcrystalline cellulose on some performance properties of chitosan aerogels

Özen

Yıldırım

Dalkiliç

et al. 2021

Maderas, Cienc. tecnol.

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The aim of this research was to investigate the effect of the microcrystalline cellulose reinforcement on some physical, mechanical, thermal, and morphological properties of the chitosan aerogels. The bio-based chitosan aerogels were produced using chitosan as a matrix and the microcrystalline cellulose as a reinforce material through the freeze-drying method. The aerogel suspensions were prepared in five different ratios to investigate the effect of microcrystalline cellulose content. The density, porosity, thermogravimetric analysis, and compressive resistance tests were conducted according to relevant standards. Morphological properties were investigated using a scanning electron microscope. The introduction of microcrystalline cellulose significantly improved the compressive resistance, thermal properties (T onset and T %50 ) of the chitosan aerogels. The optimum performance properties determined as 0,12 MPa for compressive resistance, 0,27 MPa for compressive modulus, 292,45 °C for T onset and 365 °C for T %50 . According to scanning electron microscope images, aerogels showed microporous structure as expected. As a result, the bio-based chitosan aerogels reinforced with microcrystalline cellulose were successfully manufactured. The mechanical and thermal properties including compressive resistance, compressive modulus, T onset and T %50 of chitosan-microcrystalline cellulose aerogels found promising.

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“…Due to the hydrophobicity of PE, even under continuous pressure, the water vapor generated during hot-pressing cannot pass through the PE side or escape from the decorative veneer surface. Previous studies have shown that about 80% of the water vapor accumulated between the bonding interfaces will escape at the moment of pressure release [29,30]. Under the impact of this steam, the cavity caused by bonding failure during hot-pressing was further expanded.…”

Section: Overlaying Performance Of Pe Film Reinforced Veneermentioning

confidence: 98%

Effect of Veneer Initial Moisture Content on the Performance of Polyethylene Film Reinforced Decorative Veneer

Fang

Zeng

Zhang

et al. 2021

Forests

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The flexible modification of decorative veneer by plastic film is an effective method to broaden its applications. In order to understand the effect of initial veneer moisture content on the performance of plastic film reinforced decorative veneer, Fraxinus mandshurica veneers with different initial moisture contents were composited with polyethylene film. The overlaying performance of the decorative veneer and its interface morphology with MDF substrate were evaluated. The results showed that when the initial moisture content increased from 10% to 50%, the cavity proportion of PE film reinforced decorative veneer increased from 7.23% to 18.48%, while all of the minimum steel rod diameters remained at 7.6 mm. When the initial moisture content fluctuated between 10% and 20%, the optimum surface bonding strength (1 MPa) and immersion peel strength (0 mm) of the decorative veneer could be obtained. The strength of the decorative veneer significantly decreased when the initial moisture content was more than 20%, which was caused by the cavities and the poor interfacial bonding. The veneer surface was easy to crack under low moisture content conditions. Based on the overall performance and the cost of decorative wood-based panels, initial veneer moisture content was suggested to be 15% to 20%.

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Preparation and performance of thermoplastic starch and microcrystalline cellulose for packaging composites: Extrusion and hot pressing

Cited by 101 publications

References 36 publications

Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging

Films Based on Thermoplastic Starch Blended with Pine Resin Derivatives for Food Packaging

Effects of microcrystalline cellulose on some performance properties of chitosan aerogels

Effect of Veneer Initial Moisture Content on the Performance of Polyethylene Film Reinforced Decorative Veneer

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