Effects of the Noncyclic Cyanamides on the Retrogradation of Waxy Corn Starch

Ogawa, Kazuo; Aso, Kenji; Ono, Satoshi; Yoshimura, Toshiaki; Rengakuji, Seichi; Nakamura, Yuuko; Yamazaki, Isao; Murotani, Satoru; Shimasaki, Choichiro

doi:10.1246/bcsj.73.1283

Cited by 11 publications

(1 citation statement)

References 3 publications

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“…In aqueous suspensions, urea facilitates starch gelatinization and solubilization [56][57][58][59]. Furthermore, urea could also effectively suppress the retrogradation of starch gel [60,61]. Urea could reduce the gel strength by decreasing the intermolecular network formation between water and amylose [62].…”

Section: Additives and Fillers Used To Enhance Performance Of Starch mentioning

confidence: 99%

Starch Stabilized Polyvinyl Acetate Emulsion: Review

Gadhave

Mahanwar

Gadekar

2018

Polymers from Renewable Resources

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The Increasing global energy crisis and scarcity of petroleum resources has shifted the focus of the hemical industries to look for alternative raw material resources. The main focus of raw materials in wood adhesives, such as petroleum and natural gas [1,2], would be gradually replaced by renewable bio-resource polymers. Starch is a relatively an inexpensive and renewable product from abundant plants, easy processing and it has been extensively used as paper binders, sizing materials, glues and pastes [3], but its bonding capacity is not strong enough to glue substrate like wood, paper. Conventionally available wood adhesive emulsions are colloid like polyvinyl alcohol stabilized. A new research on biodegradable, renewable, environmentally friendly starch stabilized polyvinyl acetate emulsion that was synthesized by the graft polymerization of vinyl acetate onto starch. In this paper, we reviewed starch as colloid for synthesis of polyvinyl acetate emulsion.

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Section: Additives and Fillers Used To Enhance Performance Of Starch mentioning

confidence: 99%

Starch Stabilized Polyvinyl Acetate Emulsion: Review

Gadhave

Mahanwar

Gadekar

2018

Polymers from Renewable Resources

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Preparation, characterization and performances of biodegradable thermoplastic starch

Wang

Huang

2007

Polymers for Advanced Techs

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A biodegradable thermoplastic starch (TPS) was successfully prepared from plasticizer ethanolamine and native cornstarch. The hydrogen bonding interaction between starch and ethanolamine was investigated using Fourier transform infrared (FT‐IR). When the ethanolamine mass content was 30%, after the ethanolamine‐plasticized thermoplastic starch (ETPS) was stored at RH 50% for 14 days, the mechanical testing showed that the maximum tensile stress of the ETPS reached 5.98 MPa, the tensile strain reached 106.52%, Young's modulus increased from 38.14 MPa of glycerol‐plasticized thermoplastic starch (GTPS) to 75.32 MPa of ETPS, and the breaking energy increased from 1.921 N·m to 2.305 N·m, which indicated that the mechanical properties of ETPS evidently excelled those of the GTPS. The effects of water contents on the mechanical properties of ETPS and GTPS were studied. A differential scanning calorimetry (DSC) analysis revealed that the low‐temperature transition and the glass transition temperature (Tg) of the ETPS were −58 and 22°C respectively, which were lower than that of the GTPS. The ETPS effectively restrained the re‐crystallization of traditional GTPS, which was proved by the X‐ray diffraction (XRD). The scanning electron microscopy (SEM) images presented that ethanolamine made starch uniform. Copyright © 2007 John Wiley & Sons, Ltd.

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Studies of biodegradable thermoplastic amylose/kaolin composites: Fabrication, characterization, and properties

Huang¹,

Wang²,

Yu³

2006

Polymer Composites

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Biodegradable thermoplastic amylose/kaolin composites (BTAKC) have been fabricated from glycerol‐plasticized amylose (GPA) and inorganic reinforced materials kaolin. Fourier Transform infrared (FTIR) patterns showed that in the BTAKC the CO groups of amylose molecules shifted to the higher wavenumber, while the reactive hydroxyl groups of kaolin in BTAKC shifted to the lower wavenumber. This was caused by the cooperation of strong absorption that existed between kaolin and amylose molecules and hydrogen bonds that formed between the reactive hydroxyl groups of kaolin and the hydroxyl groups of amylose molecules. Kaolin was on the submicron filling transition state and acted as an obstructer. Thermogravimetric analysis (TGA) showed that the mass loss of GPA and BTAKC with 20% kaolin were 15.54 and 13.74% respectively, the thermal stability of BTAKC were improved. When BTAKC was stored for 10 days at Relative Humidity (RH) = 50%, the tensile stress, strain, Young's modulus and breaking energy of BTAKC with 20% kaolin were 9.53 MPa, 65.4%, 149.8 MPa and 1.402 N m respectively. It was obvious that the mechanical properties of BTAKC were greatly improved. X‐ray diffraction revealed that kaolin restrained the crystallization of GPA effectively. Water absorption testing indicated that the introduction of kaolin reduced the water absorption of BTAKC, which greatly improve the application property of BTAKC. Scanning electron microscope (SEM) revealed that kaolin was commendably dispersed in GPA. Polym. Compos. 27:309–314, 2006. © 2006 Society of Plastics Engineers

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Effects of the Noncyclic Cyanamides on the Retrogradation of Waxy Corn Starch

Cited by 11 publications

References 3 publications

Starch Stabilized Polyvinyl Acetate Emulsion: Review

Starch Stabilized Polyvinyl Acetate Emulsion: Review

Preparation, characterization and performances of biodegradable thermoplastic starch

Studies of biodegradable thermoplastic amylose/kaolin composites: Fabrication, characterization, and properties

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