Modification of wood flour/PLA composites by reactive extrusion with maleic anhydride

2015 ◽  
Vol 133 (15) ◽  
pp. n/a-n/a ◽  
Author(s):  
Shanshan Lv ◽  
Jiyou Gu ◽  
Haiyan Tan ◽  
Yanhua Zhang
Keyword(s):  
Maleic Anhydride ◽  
Wood Flour ◽  
Reactive Extrusion

scholarly journals Effects of Methylenediphenyl 4,4’-Diisocyanate and Maleic Anhydride as Coupling Agents on the Properties of Polylactic Acid/Polybutylene Succinate/Wood Flour Biocomposites by Reactive Extrusion

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1660
Author(s):  
Young-Rok Seo ◽  
Sang-U Bae ◽  
Jaegyoung Gwon ◽  
Qinglin Wu ◽  
Birm-June Kim
Keyword(s):  
Maleic Anhydride ◽  
Polylactic Acid ◽  
Viscoelastic Properties ◽  
Interfacial Adhesion ◽  
Wood Flour ◽  
Flexural Modulus ◽  
Reactive Extrusion ◽  
Coupling Agents ◽  
Polybutylene Succinate

Polylactic acid (PLA)/polybutylene succinate (PBS)/wood flour (WF) biocomposites were fabricated by in situ reactive extrusion with coupling agents. Methylenediphenyl 4,4’-diisocyanate (MDI) and maleic anhydride (MA) were used as coupling agents. To evaluate the effects of MDI and MA, various properties (i.e., interfacial adhesion, mechanical, thermal, and viscoelastic properties) were investigated. PLA/PBS/WF biocomposites without coupling agents revealed poor interfacial adhesion leading to deteriorated properties. However, the incorporation of MDI and/or MA into biocomposites showed high performances by increasing interfacial adhesion. For instance, the incorporation of MDI resulted in improved tensile, flexural, and impact strengths and an increase in tensile and flexural modulus was observed by the incorporation of MA. Specially, remarkably improved thermal stability was found in the PLA/PBS/WF biocomposites with 1 phr MDI and 1 phr MA. Also, the addition of MDI or MA into biocomposites increased the glass transition temperature and crystallinity, respectively. For viscoelastic property, the PLA/PBS/WF biocomposites with 1 phr MDI and 1 phr MA achieved significant enhancement in storage modulus compared to biocomposites without coupling agents. Therefore, the most balanced performances were evident in the PLA/PBS/WF biocomposites with the hybrid incorporation of small quantities of MDI and MA.

scholarly journals Styrene-Assisted Maleic Anhydride Grafted Poly(lactic acid) as an Effective Compatibilizer for Wood Flour/Poly(lactic acid) Bio-Composites

Polymers ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 623 ◽  
Author(s):  
Jun Du ◽  
Youyong Wang ◽  
Xinfeng Xie ◽  
Min Xu ◽  
Yongming Song
Keyword(s):  
Lactic Acid ◽  
Maleic Anhydride ◽  
Wood Flour ◽  
Poly Lactic Acid

scholarly journals Preparation of Maleic Anhydride Grafted Poly(trimethylene terephthalate) (PTT-g-MA) by Reactive Extrusion Processing

2019 ◽  
Vol 3 (2) ◽  
pp. 37 ◽  
Author(s):  
Natália F. Braga ◽  
Henrique M. Zaggo ◽  
Thaís L. A. Montanheiro ◽  
Fabio R. Passador
Keyword(s):  
Thermal Properties ◽  
Maleic Anhydride ◽  
Acrylonitrile Butadiene Styrene ◽  
Reactive Extrusion ◽  
Processing Route ◽  
Parallel Plates ◽  
Reactive Processing ◽  
Scanning Calorimetry ◽  
Trimethylene Terephthalate ◽  
Compatibilizing Agent

Maleic anhydride (MA) grafted with poly(trimethylene terephthalate) (PTT)—abbreviated as PTT-g-MA—can be used as a compatibilizing agent to improve the compatibility and dispersion of nanofillers and a dispersed polymer phase into PTT matrix. This work suggests the preparation of PTT-g-MA using a mixture of PTT, MA, and benzoyl peroxide (BPO) by a reactive extrusion process. PTT-g-MA was characterized to confirm the grafting reaction of maleic anhydride on PTT chains by Fourier transform infrared (FTIR) spectroscopy. Thermal properties (differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)) and rheological analysis (parallel plates rheology) were used to prove the changes that occurred after the graphitization reaction. The reactive processing route allowed the production of the compatibilizing agent (PTT-g-MA) with good thermal properties and with lower viscosity compared to neat PTT, and this could be an alternative for the compatibilization of polymer blends, as example for PTT/ABS (acrylonitrile butadiene styrene) blends and nanocomposites based on PTT matrix.

In the melt, grafting of polycarbonate onto polystyrene-block -poly(ethylene-butylene)-block -polystyrene-grafted -maleic anhydride: Reactive extrusion

2013 ◽  
Vol 54 (11) ◽  
pp. 2660-2668
Author(s):  
Celine Chevallier ◽  
Frederic Becquart ◽  
Cyril Benoit ◽  
Jean-Charles Majeste ◽  
Mohamed Taha
Keyword(s):  
Maleic Anhydride ◽  
Reactive Extrusion ◽  
Melt Grafting ◽  
Poly Ethylene

scholarly journals Synergistic influence of halogenated flame retardants and nanoclay on flame performance of high density polyethylene and wood flour composites

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24895-24902 ◽  
Author(s):  
Jinlong Zhang ◽  
Qinglin Wu ◽  
Guangyao Li ◽  
Mei-Chun Li ◽  
Xiuxuan Sun ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
High Density Polyethylene ◽  
Flame Retardants ◽  
Wood Flour ◽  
High Density ◽  
Twin Screw Extrusion ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Processing Aids ◽  
Halogenated Flame Retardants

High density polyethylene and wood flour (HDPE/WF) composites containing three flame modifiers (FMs) (i.e., two fire retardants: 1,2-bis(pentabromophenyl) and ethylene bis(tetrabromophthalimide), and one nanoclay), maleic anhydride grafted polyethylene (MAPE) and other processing aids were prepared through twin-screw extrusion, and their properties were characterized.

Functionalization of isotactic polypropylene with maleic anhydride by reactive extrusion: mechanism of melt grafting

Polymer ◽  
2001 ◽  
Vol 42 (13) ◽  
pp. 5549-5557 ◽  
Author(s):  
Dean Shi ◽  
Jinghui Yang ◽  
Zhanhai Yao ◽  
Yong Wang ◽  
Hongliang Huang ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Isotactic Polypropylene ◽  
Reactive Extrusion ◽  
Melt Grafting ◽  
Extrusion Mechanism
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