Experimental investigation of the mechanical, rheological and thermal properties of graphene filled Polypropylene composites produced in a twin-screw extruder

2019 ◽  
Vol 1 ◽  
pp. 120-146
Author(s):  
Maximilian Adamy
Keyword(s):  
Experimental Investigation ◽  
Thermal Properties ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Polypropylene Composites ◽  
Twin Screw

Compatibilization Efficiency of Reactively Modified Poly(butylene succinate) as a Compatibilizer for Poly(butylene succinate) Composites

2015 ◽  
Vol 1119 ◽  
pp. 288-291 ◽  
Author(s):  
Vanalee Tansiri ◽  
Pranut Potiyaraj
Keyword(s):  
Thermal Properties ◽  
Maleic Anhydride ◽  
Glycidyl Methacrylate ◽  
Spectroscopic Analysis ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Melt Viscosity ◽  
Butylene Succinate ◽  
Grafting Reactions ◽  
Twin Screw

The modified poly (butylene succinate) (PBS), namely, PBS-g-MA and PBS-g-GMA were prepared in order to be used as a compatibilizer for PBS composites. The grafting of maleic anhydride (MA) or glycidyl methacrylate (GMA) onto PBS was carried out using a twin-screw extruder. The grafting reactions were confirmed by spectroscopic analysis. Comparing with MA, it was found that GMA can be effectively grafted on PBS. The PBS-g-GMA was successfully used for PBS composites to enhance thermal properties. Furthermore, it was found that the incorporation of compatibilizer increased the melt viscosity of PBS composites.

Study of the Disintegration of Poly (butylene adipate-co-terephthalate) and Starch Co-Extruded Materials

2012 ◽  
Vol 506 ◽  
pp. 331-334
Author(s):  
Pongsaks Siriyota ◽  
Yositar Rudeekit ◽  
Parichai Intaraksa ◽  
P. Chaiwutthinan ◽  
M. Tajan ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Constant Temperature ◽  
Starch Content ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Surface Morphologies

The disintegration behavior of biodegraded plastics materials including poly (butylene adipate-co-terephthalate) (Ecoflex), Ecoflex/starch blend, poly (butylene adipate-co-terephthalate) (Enpol) and Enpol/starch blend in controlled composting was described. The blends were compounded using a twin screw extruder with co-rotating mixing screw. The aerobic disintegration tests were carried out in the reactors under constant temperature at 58 + 2 °C for 90 days. During testing moisture, mixing and aeration of the samples were periodically determined and controlled according to ISO 20200:2004. The results showed that the percentage of disintegration of Ecoflex, Ecoflex/starch blend (50:50 %wt.), Enpol and Enpol/starch blend (50:50 %wt.) were 25.91%, 80.57%, 56.29% and 91.08%, respectively. It was also found that starch content facilitate the disintegration of the polymers. The morphologies and thermal properties of the residues were studied using SEM and TGA. It was found that the surface morphologies and the thermal properties results are in accordance with the biodisintegration degree.

scholarly journals Flame Retardancy and Thermal Properties of PVC/ATH Composites Prepared by a Modular Intermeshing Co-rotating Twin Screw Extruder

2016 ◽  
Vol 51 (2) ◽  
pp. 147-153
Author(s):  
Hyeongsu Lee ◽  
Se-Ho Park ◽  
Jae-Yeul Lee ◽  
Yuri Park ◽  
Hobin Jeong ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Flame Retardancy ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw

Investigation of Thermal and Rheological Properties of Polypropylene and Montmorillonite (MMT) Nanocomposites

2015 ◽  
Vol 1105 ◽  
pp. 3-6
Author(s):  
A.A. Yussuf ◽  
M.A. Al-Saleh ◽  
S.T. Al-Enezi
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Rheological Properties ◽  
Low Frequency ◽  
Complex Viscosity ◽  
Nanocomposite Films ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Thermal Stability Of

The performances of PP/MMT nanocomposite (70μm thick films), in terms of thermal and rheological properties were investigated. A twin-screw extruder was used to compound PP, MMT, compatibilizer, and extruded nanocomposite films were collected for test. All results were compared and the influence of MMT contents on the final properties were observed and reported. The thermal properties of PP had improved by increasing MMT content from 0-3 phr. However at 4 phr thermal stability of the nanocomposite had slightly dropped. In terms of rhelogical properties, the addition of MMT to the PP blend increased the complex viscosity of the nanocomposites, particularly at low frequency regions.

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