The nature and location of SEBS-MA compatibilizer in polyethylene-wood flour composites

Oksman, Kristiina; Lindberg, Henrik; Holmgren, Allan

doi:10.1002/(sici)1097-4628(19980705)69:1<201::aid-app23>3.0.co;2-0

Cited by 94 publications

(46 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A marked increase of the modulu,s up to about 1,750 MPa, was found for PS/Cell (60/40) upon addition of PS-co-MA (16 pph), while the strength at max and elongation at break decreased, depending on the fiber/compatibilizer ratio (Figure 14). Otherwise, the addition of SEBS-g-MA copolymer caused a ductile behavior with lower modulus and increased elongation at break, owing to the ethylene-butene elastomeric block in the copolymer chain [28]. However, as it was pointed out by SEM analysis of fracture surfaces of binary SEBS-g-MA/Cell samples, a stronger surface adhesion accompanied by extended fiber fraying was noticed with respect to PS-co-MA/Cell samples.…”

Section: Composites With Ps Matrixmentioning

confidence: 89%

Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers

Pracellà¹,

2010

View full text Add to dashboard Cite

Abstract:The article is focused on analyzing the effect of functionalization and reactive processing on the morphological, thermal, rheological and mechanical properties of composites of isotactic polypropylene (PP), polystyrene (PS), poly(ethylene-vinyl acetate) (EVA), with cellulose fibers, hemp or oat as natural fillers. Both polymers and fibers were modified with bi-functional monomers (glycidyl methacrylate, GMA; maleic anhydride, MA) capable of facilitating chemical reactions between the components during melt mixing. Polyolefin copolymers containing reactive groups (PP-g-GMA, SEBS-g-MA, PS-co-MA, etc.) were used as compatibilizers. Optical and SEM microscopy, FTIR, RX, DSC, TGA, DMTA, rheological and mechanical tests were employed for the composites characterization. The properties of binary and ternary systems have been analyzed as a function of both fiber and compatibilizer content. All compatibilized systems showed enhanced fiber dispersion and interfacial adhesion. The phase behavior and the thermal stability of the composites were affected by the chemical modification of the fibers. Marked changes in the overall crystallization processes and crystal morphology of PP composites were observed owing to the nucleating effect of the fibers. The tensile mechanical behavior of the compatibilized composites generally resulted in a higher stiffness, depending on the fiber amount and the structure and concentration of compatibilizer. OPEN ACCESSPolymers 2010, 2 555

show abstract

Section: Composites With Ps Matrixmentioning

confidence: 89%

Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers

Pracellà¹,

2010

View full text Add to dashboard Cite

show abstract

“…Different coupling agents have been used to modify the polymeric matrix and improve the interfacial strength and subsequently the mechanical properties of the products. Maleic anhydride grafted styrene-ethylene-butylene-styrene (SEBS-g-MA) ( Oksman et al, 1998) and maleic anhydride grafted polyolefin such as HDPE-g-MA (Polec et al, 2010), PP-g-MA (Farsi, 2010), and LDPE-g-MA (Tasdemir et al, 2009) are the most common examples of reported works in the literature.…”

mentioning

confidence: 99%

Thermoplastic Matrix Reinforced with Natural Fibers: A Study on Interfacial Behavior

Farsi¹

2012

Some Critical Issues for Injection Molding

View full text Add to dashboard Cite

“…Therefore, it is a new type of biodegradable 3D printing filament with broad prospects for further development. However, it is noted that although wood flour and PLA can be mixed evenly and wood flour can be covered by polylactic acid molecules, the interfacial compatibility and tenacity of the composite materials are not satisfactory (Oksman et al 1998;Lai et al 2003). Moreover, the addition of wood flour can limit the movement of the macromolecular chain of PLA and reduce the stereo-tacticity of PLA, which leads to a significant reduction in the crystallization ability of PLA (Liu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Plasticizer Combinations and Performance of Wood Flour–Poly(Lactic Acid) 3D Printing Filaments

2017

View full text Add to dashboard Cite

Wood flour-poly(lactic acid) 3D printing filaments were prepared via a melt extrusion method. Poplar wood flour and poly(lactic acid) (PLA) were used as raw materials, and different combinations of glycerol and tributyl citrate (TBC) (4% glycerol, 2% glycerol + 2% TBC, 4% TBC) were used as plasticizers. A 3D printer was used to print the filaments into standard test specimens with dimensions of 150 mm × 10 mm × 0.2 mm at the printing temperature of 220 °C. The performance of wood flour-poly(lactic acid) 3D printing filaments in terms of their interfacial compatibility, mechanical properties, melt index (MI), water absorption, and heat stability was tested under different plasticizer combinations. The results showed that under the condition of same dosage of plasticizer, the order of MI for the 3D printed filaments from high to low was 4% glycerol > 2% glycerol + 2% TBC > 4% TBC, which indicated that glycerol was more favorable for the extrusion processing of the composite filaments. However, in terms of compatibility, mechanical properties, water absorption, and thermal stability, the 3D printing filaments with 4% TBC showed better performance compared with other groups.

show abstract

The nature and location of SEBS-MA compatibilizer in polyethylene-wood flour composites

Cited by 94 publications

References 5 publications

Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers

Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers

Thermoplastic Matrix Reinforced with Natural Fibers: A Study on Interfacial Behavior

Plasticizer Combinations and Performance of Wood Flour–Poly(Lactic Acid) 3D Printing Filaments

Contact Info

Product

Resources

About