Application of bis(glycidyloxy)phenylphosphine oxide as a chain extender for polyamide-6

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31878-31885 ◽  
Author(s):  
Alvianto Wirasaputra ◽  
Jianqing Zhao ◽  
Yaming Zhu ◽  
Shumei Liu ◽  
Yanchao Yuan
Keyword(s):  
Mechanical Properties ◽  
Small Molecule ◽  
Polyamide 6 ◽  
Chain Extender ◽  
Chain Extension ◽  
A Chain ◽  
Phenylphosphine Oxide

Figure melt torque of PA6 mixed with different contents of chain extender BGPPO. The addition of small molecule diepoxide (BGPPO) greatly enhanced the melt torque, rheological and mechanical properties of polyamide-6 through chain extension reaction.

Simultaneous Improvement of the Processability and Mechanical Properties of Polyamide-6 by Chain Extension in Extrusion

2020 ◽  
Vol 59 (32) ◽  
pp. 14334-14343
Author(s):  
Jianan Cai ◽  
Zhipeng Liu ◽  
Bo Cao ◽  
Xiaoxiao Guan ◽  
Shumei Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyamide 6 ◽  
Chain Extension

Study on Mechanical Properties of Polyurethane Elastomers for Drum Scraper

2011 ◽  
Vol 284-286 ◽  
pp. 2384-2387
Author(s):  
Jin Cui Zhang ◽  
Xi Jun Liu ◽  
Tie Ning Ma
Keyword(s):  
Mechanical Properties ◽  
Chain Extender ◽  
Glycol Ether ◽  
Toluene Diisocyanate ◽  
Chain Extension ◽  
Molar Ratio ◽  
Casting Method ◽  
Polyurethane Elastomers ◽  
Application Requirements

Polyurethane elastomers (PUE) were prepared by casting method using the prepolymer and the chain extender. In here, the prepolymer synthesized by using poly(tetramethylene glycol ether) (PTMG) and toluene diisocyanate (TDI), the chain extender was a mixture of 3,5-dimetylthio toluene diamine (E-300) and triethanolamine. The effects of the NCO concentration in prepolymer, the molar ratio of E-300/triethanolamine, and the chain extension coefficient of NCO/NH2 on the mechanical properties of the prepared PUE were studied. The results showed that the prepared PUE possesses excellent mechanical properties which can meet the drum scraper’s application requirements when the NCO concentration in prepolymer was 5.06% and the molar ratio of composite chain extender was 0.92/0.08.

scholarly journals Influence of Chain-Extension Reaction on Stereocomplexation, Mechanical Properties and Heat Resistance of Compressed Stereocomplex-Polylactide Bioplastic Films

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1218 ◽  
Author(s):  
Yodthong Baimark ◽  
Sumet Kittipoom
Keyword(s):  
Mechanical Properties ◽  
Differential Scanning Calorimetry ◽  
Heat Resistance ◽  
Tensile Testing ◽  
Chain Extender ◽  
Chain Extension ◽  
Melt Blending ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Xrd Patterns

Stereocomplex polylactide (scPLA) films were prepared by melt blending of poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA) with and without an epoxy-based chain extender before compression molding. The obtained scPLA films were characterized through differential scanning calorimetry, X-ray diffractometry (XRD), tensile testing and dimensional stability to heat. XRD patterns revealed that all the scPLA films had only stereocomplex crystallites. The obtained results showed that the chain-extension reaction improved mechanical properties of the scPLA films, however, it suppressed stereocomplexation and heat resistance.

Studies on chain extension of a novel bio-based engineering elastomer using 4,4-diphenyl methane diisocyanate as a chain extender

2014 ◽  
Vol 131 (18) ◽  
pp. n/a-n/a ◽  
Author(s):  
Lei Jiang ◽  
Hailan Kang ◽  
Zhao Wang ◽  
Liqun Zhang ◽  
Lixin Mao ◽  
...  
Keyword(s):  
Chain Extender ◽  
Chain Extension ◽  
A Chain

Advances in Microcellular Foam Processing of PLA

2016 ◽  
Vol 717 ◽  
pp. 68-72 ◽  
Author(s):  
Zhi Zhong Han ◽  
You Cheng Zhang ◽  
Wei Min Yang ◽  
Peng Cheng Xie
Keyword(s):  
Mechanical Properties ◽  
Cell Density ◽  
Cell Morphology ◽  
Expansion Ratio ◽  
Chain Extender ◽  
Microcellular Foam ◽  
Foaming Process ◽  
Microcellular Foaming ◽  
Alternative Materials ◽  
A Chain

PLA is a bio-based biodegradable plastic, which has excellent biocompatibility and biodegradability. Because the mechanical properties of microcellular foaming material is similar to petroleum-based plastics (PS), PLA foams have been considered as ideal alternative materials. However, PLA has several inherent drawbacks such as low melt strength and slow crystallization kinetics, which severely inhibit the PLA foaming process to produce high-density forms and uniform cell morphology. By adding a chain extender or nanoparticles, and blending with other biological materials, these ways could effectively enhance the expansion ratio and the cell density of PLA and improve the mechanical properties of PLA foams. The most current investigations on microcellular foaming of PLA were reviewed in the article, and outlook of PLA foams was raised.

scholarly journals The flame retardancy and rheological properties of PA6/MCA modified by DOPO-based chain extender

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 19593-19603 ◽  
Author(s):  
Jianan Cai ◽  
Alvianto Wirasaputra ◽  
Yaming Zhu ◽  
Shumei Liu ◽  
Yubin Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rheological Properties ◽  
Flame Retardancy ◽  
Chain Extender ◽  
Chain Extension ◽  
P Addition

Addition of DOPO-based chain extender (DEP) simultaneously enhanced the flame retardancy and mechanical properties of PA6/MCA through chain extension and coaction in flame-retarding.

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