Rheology and thermal properties of polypropylene modified by reactive extrusion with dicumyl peroxide and trimethylol propane triacrylate

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.

Download Full-text

Effect of Dicumyl Peroxide on a Poly(lactic acid) (PLA)/Poly(butylene succinate) (PBS)/Functionalized Chitosan-Based Nanobiocomposite for Packaging: A Reactive Extrusion Study

ACS Omega ◽

10.1021/acsomega.8b00907 ◽

2018 ◽

Vol 3 (10) ◽

pp. 13298-13312 ◽

Cited By ~ 11

Author(s):

Monika ◽

Akhilesh Kumar Pal ◽

Siddharth Mohan Bhasney ◽

Purabi Bhagabati ◽

Vimal Katiyar

Keyword(s):

Lactic Acid ◽

Reactive Extrusion ◽

Poly Lactic Acid ◽

Dicumyl Peroxide ◽

Butylene Succinate

Download Full-text

Novel poly(ester-urethane)s based on polylactide: From reactive extrusion to crystallization and thermal properties

Polymer ◽

10.1016/j.polymer.2012.10.021 ◽

2012 ◽

Vol 53 (25) ◽

pp. 5657-5665 ◽

Cited By ~ 22

Author(s):

Rose Mary Michell ◽

Alejandro J. Müller ◽

Adriana Boschetti-de-Fierro ◽

Daniel Fierro ◽

Valérie Lison ◽

...

Keyword(s):

Thermal Properties ◽

Reactive Extrusion

Download Full-text

Structure characteristics and thermal properties of silane-grafted-polyethylene/clay nanocomposite prepared by reactive extrusion

Composites Science and Technology ◽

10.1016/j.compscitech.2006.01.018 ◽

2006 ◽

Vol 66 (15) ◽

pp. 3035-3039 ◽

Cited By ~ 71

Author(s):

Hongdian Lu ◽

Yuan Hu ◽

Ming Li ◽

Zuyao Chen ◽

Weicheng Fan

Keyword(s):

Thermal Properties ◽

Reactive Extrusion ◽

Structure Characteristics

Download Full-text

Studies on the Influence of Monomers on the Performance Properties of Epoxy Acrylate Resin

E-Journal of Chemistry ◽

10.1155/2008/734290 ◽

2008 ◽

Vol 5 (3) ◽

pp. 521-528 ◽

Cited By ~ 6

Author(s):

Amrita Sharma ◽

Devendra Agarwal ◽

Jagabir Singh

Keyword(s):

Thermal Properties ◽

Weight Ratio ◽

Epoxy Acrylate ◽

Functional Monomer ◽

Functional Monomers ◽

Glycol Diacrylate ◽

Physical Mixing ◽

Acrylate Resin ◽

Trimethylol Propane ◽

Epoxy Acrylate Resin

Twelve blend samples were prepared by physical mixing of epoxy acrylate resins with various monomersviz. ethoxylated phenol monoacrylate (EOPA), tripropylene glycol diacrylate (TPGDA) and trimethylol propane tri acrylate(TMPTA), having weight ratio of epoxy acrylate resin and monomers are 50:50, 60:40, 70:30, 80:20. These samples were cured under UV radiation using 5% photo initiator by weight. These blends were evaluated for mechanical, chemical & thermal properties. It was found that the sample having mono & tri functional monomers shows better properties than the samples having di functional monomer.

Download Full-text

Preparation of high molecular weight and elastic copolyester by reactive extrusion with diisocyanate compound for laser printing process

Journal of Polymer Engineering ◽

10.1515/polyeng-2011-0155 ◽

2012 ◽

Vol 32 (3) ◽

Cited By ~ 1

Author(s):

Hyung-Jin Roh ◽

Doe Kim ◽

Dong-Ho Lee ◽

Keun-Byoung Yoon

Keyword(s):

Rheological Properties ◽

Loss Modulus ◽

Complex Viscosity ◽

Melt Flow Index ◽

Reactive Extrusion ◽

Flow Index ◽

Printing Process ◽

Laser Printing ◽

Printing Processes ◽

Trimethylol Propane

Abstract A branched copolyester was synthesized using dimethyl terephthalate (DMT), 2,2-bis[4-(2-hydroxypropoxy)phenyl]propane, ethylene glycol (EG) and 2-(hydroxymethyl)-2- ethylpropane-1,3-diol (trimethylol propane, TMP). The branched copolyester and p-phenylene diisocyanate (PPDI) were melt extruded to enhance the melt viscosity and elasticity for use as a toner binder in the laser printing process. The effects of PPDI content on melt, thermal and rheological properties of the chain-extended copolyester were investigated. The melt flow index (MI) decreased with increasing amount of PPDI, due to a reaction between the hydroxyl chain end and isocyanate group. The storage modulus, loss modulus and complex viscosity of the chain extended copolyester were higher and the modified Cole-Cole plots revealed the chain extended copolyester to have higher elasticity than that of the branched copolyester. The chain extended copolyester exhibited suitable melt and rheological properties for applications as a toner binder in the laser printing processes.

Download Full-text