Rheological properties and crystallization behavior of modified polylactic acid using lauroyl peroxide and glycidyl methacrylate

2020 ◽  
Vol 138 (9) ◽  
pp. 49924
Author(s):  
Mona Jafari ◽  
Nadia Jalalifar ◽  
Babak Kaffashi
Keyword(s):  
Rheological Properties ◽  
Polylactic Acid ◽  
Glycidyl Methacrylate ◽  
Crystallization Behavior ◽  
Lauroyl Peroxide

Glycidyl Methacrylate Grafted Polylactic Acid: Morphological Properties and Crystallization Behavior

2015 ◽  
Vol 354 (1) ◽  
pp. 237-243 ◽  
Author(s):  
Parina Kangwanwatthanasiri ◽  
Nitinat Suppakarn ◽  
Chaiwat Ruksakulpiwat ◽  
Yupaporn Ruksakulpiwat
Keyword(s):  
Polylactic Acid ◽  
Glycidyl Methacrylate ◽  
Crystallization Behavior ◽  
Morphological Properties

scholarly journals Study of the rheological properties and crystallization behavior of branched PP/silicate composites

2012 ◽  
Vol 44 (11) ◽  
pp. 1098-1104 ◽  
Author(s):  
Kyung Hwa Yoon ◽  
Sung Park ◽  
Youn Cheol Kim
Keyword(s):  
Rheological Properties ◽  
Crystallization Behavior

Reactive Compatibilization in Nano-Silica Filled Polypropylene Composites

2007 ◽  
Vol 121-123 ◽  
pp. 1433-1436 ◽  
Author(s):  
Klaus Friedrich ◽  
Min Zhi Rong ◽  
Ming Qiu Zhang
Keyword(s):  
Glycidyl Methacrylate ◽  
Interfacial Adhesion ◽  
Crystallization Behavior ◽  
Filler Content ◽  
Nano Silica ◽  
Reactive Compatibilization ◽  
Polypropylene Composites ◽  
Amine Functionalized ◽  
Compatibilization Effect ◽  
Notch Impact Strength

Nano-sized silica was pre-grafted with poly(glycidyl methacrylate) (PGMA) by solution free-radical polymerization. When these grafted silica particles were melt compounded with polypropylene (PP), reactive compatibilization effect was perceived due to the chemical bonding between the PGMA and amine functionalized PP, which led to a significant increase of tensile strength and notch impact strength of PP at rather low filler content. Accordingly, compatibility of each kind of the functionalized PP with grafted SiO2 was evaluated through investigating the mechanical properties, crystallization behavior and rheological performance of the composites. The results show that the reactive compatibilization is capable of providing stronger interfacial adhesion.

The Effect of Uniaxial Stretching on the Crystallization Behaviors of Polylactic Acid Film

2011 ◽  
Vol 418-420 ◽  
pp. 625-628 ◽  
Author(s):  
Hui Li Xie ◽  
Kai Guo ◽  
Jin Zhou Chen ◽  
Wan Jie Wang ◽  
Ming Jun Niu ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Crystallization Behavior ◽  
Crystal Form ◽  
Stretch Ratio ◽  
Uniaxial Tensile ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Uniaxial Stretching ◽  
X Ray ◽  
Stretching Ratio

Abstract. The effect of uniaxial stretching of different stretching ratio at 80 °C, 90°C, 100°C, 110 °C and 120°C on the crystallization behavior of polylactic acid (PLA) film was investigated by using differential scanning calorimetry (DSC), wide-angle X-ray diffraction (XRD) and polarizing microscope (POM). The results showed that the crystallinity of PLA film was improved via uniaxial tensile orientation and increased with increasing stretch ratio, and the crystallinity of PLA film reached the maximum under the conditions of 90°C and stretching ratio 300%. Stretched PLA films show α crystal form. The spherulites deform to ellipsoids after stretching.

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

Enhanced thermostability of polylactic acid by N-(4-carboxyphenyl) maleimide–alt–styrene

2020 ◽  
pp. 096739112095166
Author(s):  
Siyuan Jiang ◽  
Yufei Liu ◽  
Wei Yan ◽  
Min He ◽  
Shuhao Qin ◽  
...  
Keyword(s):  
Composite Material ◽  
Polylactic Acid ◽  
Crystallization Temperature ◽  
Crystallization Behavior ◽  
Crystallization Rate ◽  
Thermomechanical Property ◽  
Degradation Behavior ◽  
Thermal Degradation Behavior ◽  
Before And After ◽  
Heat Deflection Temperature

The heat-resistant agent N-(4-carboxyphenyl) maleimide–alt–styrene (PCS) was used to modify polylactic acid (PLA) in order to improve the thermostability of PLA. The heat deflection temperature (HDT), thermodegradation, crystallization behavior and thermomechanical property were analyzed. The HDT of PLA added with PCS increased by about 10°C, and after heat treatment, the improvement of HDT was more significant. The thermal degradation behavior of PLA before and after modification hardly changed. The crystallinity ( Xc), crystallization rate ( 1/t1/2) and crystallization temperature ( Tc) of the composite material were significantly improved, but the crystalline structure did not change. The crystallinity of the composite material was twice that of pure PLA, the crystallization rate increased by about 30% and the crystallization temperature went up more than 10°C. The storage modulus ( E’) of PLA was improved by PCS due to enhancing its crystallinity. The thermostability of PLA was significant improved after PCS is added.

Influences of pristine carbon nanotube on the rheological properties of compatibilized polylactic acid/natural rubber nanocomposite

2020 ◽  
Author(s):  
Nor Nisa Balqis Mohammad ◽  
Agus Arsad ◽  
Hyoung Jin Choi ◽  
Norzita Ngadi ◽  
Mohd Shaiful Zaidi Mat Desa
Keyword(s):  
Carbon Nanotube ◽  
Natural Rubber ◽  
Rheological Properties ◽  
Polylactic Acid
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