Effect of glycidyl methacrylate-grafted natural rubber on physical properties of polylactic acid and natural rubber blends

2011 ◽  
Vol 125 (1) ◽  
pp. 745-754 ◽  
Author(s):  
Punmanee Juntuek ◽  
Chaiwat Ruksakulpiwat ◽  
Pranee Chumsamrong ◽  
Yupaporn Ruksakulpiwat
Keyword(s):  
Natural Rubber ◽  
Physical Properties ◽  
Polylactic Acid ◽  
Glycidyl Methacrylate ◽  
Rubber Blends

Influence of compatibilizer on the structure properties of polylactic acid/natural rubber blends

2016 ◽  
Vol 58 (2) ◽  
pp. 177-185 ◽  
Author(s):  
N. N. B. Mohammad ◽  
A. Arsad ◽  
A. R. Rahmat ◽  
N. S. Abdullah Sani ◽  
M. E. Ali Mohsin
Keyword(s):  
Natural Rubber ◽  
Polylactic Acid ◽  
Rubber Blends ◽  
Structure Properties

Mechanical Properties of Polylactic Acid and Natural Rubber Blends Using Vetiver Grass Fiber as Filler

2010 ◽  
Vol 123-125 ◽  
pp. 1167-1170 ◽  
Author(s):  
Punmanee Juntuek ◽  
Chaiwat Ruksakulpiwat ◽  
Pranee Chumsamrong ◽  
Yupaporn Ruksakulpiwat
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Natural Rubber ◽  
Polylactic Acid ◽  
Compression Molding ◽  
Molecular Weight Determination ◽  
Vetiver Grass ◽  
Rubber Blends ◽  
Before And After ◽  
Internal Mixer

Polylactic acid (PLA) and natural rubber (NR) were melt blended with vetiver grass fiber using an internal mixer. Heat treatment at the temperature of 180°C was done to obtain heat treated vetiver grass fiber. Glycidyl methacrylate grafted natural rubber (NR-g-GMA) was used as a compatibilizer of PLA/vetiver/NR composites. The injection molding and compression molding were used to prepare the specimens. Molecular weight determination of PLA before and after processing was done by Gel Permeable Chromatography (GPC).Comparisons between the mechanical properties of the composites prepared from injection molding and compression molding were made.

Application of polymethylmethacrylate-grafted cellulose as reinforcement for compatibilised polylactic acid/natural rubber blends

2019 ◽  
Vol 213 ◽  
pp. 50-58 ◽  
Author(s):  
Noor Afizah Rosli ◽  
Ishak Ahmad ◽  
Farah Hannan Anuar ◽  
Ibrahim Abdullah
Keyword(s):  
Natural Rubber ◽  
Polylactic Acid ◽  
Rubber Blends

Effects of Maleated Natural Rubber on Mechanical Properties of Polylactic Acid/Natural Rubber Blends

2015 ◽  
Vol 819 ◽  
pp. 284-289 ◽  
Author(s):  
N.N.B. Mohammad ◽  
A. Arsad ◽  
A.R. Rahmat ◽  
N.S. Abdullah Sani
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Polylactic Acid ◽  
Rubber Blends ◽  
Grafting Reaction ◽  
Melt Grafting ◽  
Twin Screw ◽  
Compatibilization Effect ◽  
Internal Mixer ◽  
Maleated Natural Rubber

Brittle Polylactic acid (PLA) was toughened by introducing 5-20 wt. % of Natural Rubber (NR) through melt blending in a twin screw extruder. The results of tensile strength and Young’s modulus of PLA/NR blends were dramatically decreased. Maleic anhydride grafted natural rubber (NR-g-MA) was prepared and used to enhance the blends performance. The preparation of NR-g-MA was carried out using internal mixer by free radical melt grafting reaction followed by Fourier transform infrared spectroscopy (FTIR) to analyze the incorporation of MA on the NR. The compatibilization effect on the mechanical properties of PLA/NR blends was investigated with addition of 3 phr NR-g-MA. Comparison between PLA/NR/Compatibilizer and virgin PLA/NR blends significantly improved on the mechanical properties. FTIR result confirmed grafting reaction occurred between MA and NR.

Physical Properties of Poly(lactic acid)/Hydroxyl Terminated Natural Rubber Blends

2015 ◽  
Vol 354 (1) ◽  
pp. 118-124 ◽  
Author(s):  
Sawitri Srisuwan ◽  
Yupaporn Ruksakulpiwat ◽  
Pranee Chumsamrong
Keyword(s):  
Lactic Acid ◽  
Natural Rubber ◽  
Physical Properties ◽  
Poly Lactic Acid ◽  
Rubber Blends

scholarly journals Rheometer Evidences for the Co-Curing Effect of a Bismaleimide in Conjunction with the Accelerated Sulfur on Natural Rubber/Chloroprene Rubber Blends

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1510
Author(s):  
Marek Pöschl ◽  
Shibulal Gopi Sathi ◽  
Radek Stoček ◽  
Ondřej Kratina
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Tensile Properties ◽  
Crosslinking Agent ◽  
Alder Reaction ◽  
Diels Alder ◽  
Ene Reactions ◽  
Rubber Blends ◽  
Diels Alder Reaction ◽  
Chloroprene Rubber

The rheometer curing curves of neat natural rubber (NR) and neat chloroprene rubber (CR) with maleide F (MF) exhibit considerable crosslinking torque at 180 °C. This indicates that MF can crosslink both these rubbers via Alder-ene reactions. Based on this knowledge, MF has been introduced as a co-crosslinking agent for a 50/50 blend of NR and CR in conjunction with accelerated sulfur. The delta (Δ) torque obtained from the curing curves of a blend with the addition of 1 phr MF was around 62% higher than those without MF. As the content of MF increased to 3 phr, the Δ torque was further raised to 236%. Moreover, the mechanical properties, particularly the tensile strength of the blend with the addition of 1 phr MF in conjunction with the accelerated sulfur, was around 201% higher than the blend without MF. The overall tensile properties of the blends cured with MF were almost retained even after ageing the samples at 70 °C for 72 h. This significant improvement in the curing torque and the tensile properties of the blends indicates that MF can co-crosslink between NR and CR via the Diels–Alder reaction.

Sign in / Sign up

Export Citation Format

Share Document