Interfacial adhesion reaction of polyethylene and starch blends using maleated polyethylene reactive compatibilizer

Yoo, Seong Ik; Lee, Tae Yeon; Yoon, Jin‐San; Lee, Ik-Mo; Kim, Mal-Nam; Lee, Han Sup

doi:10.1002/app.2271

Cited by 48 publications

(22 citation statements)

References 29 publications

(23 reference statements)

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“…The combination of hydrophobic LLDPE and hydrophilic soya powder resulted in phase separation of the blends. This result is in agreement with various studies on starch and polyolefins [8–10].…”

Section: Resultssupporting

confidence: 94%

Effect of epoxidized natural rubber on the processing behavior, tensile properties, morphology, and thermal properties of linear‐low‐density polyethylene/soya powder blends

Sam¹,

Ismail²,

Ahmad³

2010

Vinyl Additive Technology

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The effect of epoxidized natural rubber (ENR) with 50 mol% epoxidation (ENR 50) on the processing behaviors, tensile properties, morphology, and thermal properties of linear-low-density polyethylene (LLDPE)/ soya powder blends was investigated. The LLDPE was blended with various soya powder contents in a Haake internal mixer at 1508C and a rotor speed of 50 rpm for 10 min. The tensile properties were tested by using an Instron tensometer according to ISO 527. The thermal stability of the blends was determined by using a thermogravimetric analyzer (TGA). The tensile strength and elongation at the breakage point were significantly improved by the addition of ENR 50, as evidenced by morphological analysis using scanning electron microscopy (SEM). On the other hand, the tensile modulus increased with soya powder content up to 20% and decreased thereafter. The crystallinity and crystallization temperatures of the blends decreased with the incorporation of ENR, and the thermal stability of the blends was lower with higher soya powder content. However, ENR 50 improved the thermal stability of LLDPE/soya powder blends. J. VINYL ADDIT. TECHNOL.,

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Section: Resultssupporting

confidence: 94%

Effect of epoxidized natural rubber on the processing behavior, tensile properties, morphology, and thermal properties of linear‐low‐density polyethylene/soya powder blends

Sam¹,

Ismail²,

Ahmad³

2010

Vinyl Additive Technology

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“…Figure 3 shows the result of the effect of TPSS loading on the tensile properties of LDPE=TPSS blends. From Figure 3A, both compatibilized and uncompatibilized The reduction in the tensile strength for the uncompatibilized LDPE=TPSS blends has been reported by other workers [7] , and it is due to the incompatibility between the two materials. LDPE is a hydrophobic material, whereas TPSS is a hydrophilic material.…”

Section: Resultsmentioning

confidence: 72%

“…In most cases the major component of the blends forms the matrix, whereas the minor component forms the disperse phase [7,10] . In this LDPE=TPSS blends LDPE is the matrix, while TPSS is the disperse phase.…”

Section: Surface Fracture Morphology Studymentioning

confidence: 99%

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Effects of PE-g-MA on Tensile Properties, Morphology and Water Absorption of LDPE/Thermoplastic Sago Starch Blends

Majid

Ismail

Taib

2009

Polymer-Plastics Technology and Engineering

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Effects of polyethylene-grafted maleic anhydride (PE-g-MA) on tensile properties, morphology and water absorption of LDPE/ Thermoplastic sago starch (TPSS) blends were studied. TPSS was prepared by mixing starch (65 wt. %) and glycerol (35 wt. %) and stored overnight at room temperature. The mixture then was melt-compounded using a heated 2 roll-mills at 150 C for 10 minutes. LDPE/TPSS blends with different TPSS loadings, with and without the addition of PE-g-MA were prepared by using a Haake Rheomix mixer at 150 C. All mixing were carried out for 10 minutes at a rotor speed of 50 rpm. Tensile test specimens were cut out from the compression molded sheets. Results indicated that the mixing torque of LDPE/TPSS blends reduced with increasing TPSS loading. The tensile strength and elongation at break of LDPE/TPSS/ PE-g-MA blends were greater than LDPE/TPSS blends particularly at higher TPSS loadings. The interfacial properties between LDPE and TPSS were improved after PE-g-MA addition as evident from the tensile fracture surface morphology using a scanning electron microscopy. Chemical functional groups formed after the addition PE-g-MA were studied with FTIR. Equilibrium water uptakes for LDPE/TPSS/PE-g-MA blends were higher than those of LDPE/ TPSS blends.

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“…Infrared spectroscopy revealed that the anhydride in the master batch was either in the form of maleic acid (peak at ~1710 cm -1 ) or as an ester (peak at ~1740 cm -1 ). 25 Consequently, at least parts of MaPE had connected to PVP with hydrogen bonds through the maleic acid hydroxyl groups. The density of pure montmorillonite is 2608 kg/m 3 .…”

Section: Introductionmentioning

confidence: 99%

A study on montmorillonite/polyethylene nanocomposite extrusion‐coated paperboard

Krook¹,

Gällstedt²,

Hedenqvist

2004

Packag Technol Sci

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Extrusion coating was used to obtain montmorillonite/polyethylene-coated paperboard. The coating was prepared from a master batch containing maleated polyethylene, low-density polyethylene and 32 wt.% polyvinylpyrrolidonesurface-modified montmorillonite clay, which was blended with different amounts of low-density polyethylene to yield composites with 4 wt.% and 8.3 wt.% montmorillonite. X-ray diffraction revealed that the clay stacks in the coating were more extensively intercalated than in the original surface-modified clay. Transmission electron microscopy showed that the clay stacks were, to a large extent, separated by the high shear forces during extrusion into smaller evenly distributed entities. This was, unfortunately, achieved at the expense of the formation of a great many voids and pinholes, as revealed by transmission electron microscopy and dye staining. This had strong negative effects on the oxygen barrier properties but only a modest effect on the water vapour permeability. Tensile tests showed that the coating was always ductile and that the coating-paperboard adhesion decreased with increasing clay content. The creasability was good and unaffected by the presence of the filler in the coating. Thermogravimetry showed that the degradation temperature in air of the filled coatings were of the order of 10°C higher than that of unfilled polyethylene.

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Interfacial adhesion reaction of polyethylene and starch blends using maleated polyethylene reactive compatibilizer

Cited by 48 publications

References 29 publications

Effect of epoxidized natural rubber on the processing behavior, tensile properties, morphology, and thermal properties of linear‐low‐density polyethylene/soya powder blends

Effect of epoxidized natural rubber on the processing behavior, tensile properties, morphology, and thermal properties of linear‐low‐density polyethylene/soya powder blends

Effects of PE-g-MA on Tensile Properties, Morphology and Water Absorption of LDPE/Thermoplastic Sago Starch Blends

A study on montmorillonite/polyethylene nanocomposite extrusion‐coated paperboard

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