Maleic anhydride grafted thermoplastic elastomer as an interfacial modifier for polypropylene/polyamide 6 blends

2003 ◽  
Vol 91 (3) ◽  
pp. 1806-1815 ◽  
Author(s):  
Yuchun Ou ◽  
Yuguo Lei ◽  
Xiaoping Fang ◽  
Guisheng Yang
Keyword(s):  
Maleic Anhydride ◽  
Thermoplastic Elastomer ◽  
Polyamide 6 ◽  
Interfacial Modifier

Self-Extinguishing and Non-Drip Flame Retardant Polyamide 6 Nanocomposite: Mechanical, Thermal, and Combustion Behavior

2018 ◽  
Vol 1 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Hao Wu ◽  
Rogelio Ortiz ◽  
Renan De Azevedo Correa ◽  
Mourad Krifa ◽  
Joseph H. Koo
Keyword(s):  
Maleic Anhydride ◽  
Flame Retardant ◽  
Polymer Matrix ◽  
Flame Retardants ◽  
Polyamide 6 ◽  
Twin Screw Extrusion ◽  
Elongation At Break ◽  
Combustion Behavior ◽  
Screw Extrusion ◽  
Twin Screw

AbstractIncorporation of flame-retardant (FR) additives and nanoclay fillers into thermoplastic polymers effectively suppresses materials flammability and melt dripping behavior. However, it largely affects other properties, such as toughness and ductility. In order to recover the lost toughness and ductility of flame retardant polyamide 6, various loadings of maleic anhydride modified SEBS elastomer were added and processed by twin screw extrusion. TEM images showed exfoliated nanoclay platelets and reveals that the clay platelets well dispersed in the polymer matrix. By balancing the ratio of flame retardants, nanoclay and elastomers, formulation with elongation at break as high as 76% was achieved. Combining conventional intumescent FR and nanoclay, UL-94 V-0 rating and the LOI value as high as 32.2 were achieved. In conclusion, effective self-extinguishing and non-drip polyamide 6 nanocomposite formulations with significant improvement in toughness and ductility were achieved.

scholarly journals Maleic Anhydride-Grafted Isotactic Polybutene-1 and Modified Polyamide 6

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 872 ◽  
Author(s):  
Yongxian Zhao ◽  
Chen Ma ◽  
Shijie Cheng ◽  
Wei Xu ◽  
Yuejuan Du ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Crystallization Rate ◽  
Polyamide 6 ◽  
Melt Flow Rate ◽  
Elongation At Break ◽  
Melt Grafting ◽  
Relative Molecular Weight ◽  
Two Phases ◽  
Optimized Conditions ◽  
Dsc Curves

Maleic anhydride (MAH)–divinyl benzene (DVB) multi-monomer melt-grafting onto isotactic polybutene-1 (iPB-1) was carried out in a torque rheometer. The effects of dicumyl peroxide (DCP), MAH, and DVB concentrations, and temperature, on the reaction, were investigated. The optimized conditions were 170 °C, DVB/MAH = 4:6 (mass ratio). DVB as a comonomer enhanced the grafting degree (Gd) and grafting efficiency (Ge) of iPB-g-MAH better than styrene. The initiator DCP had little effect on Gd as its concentration over 0.2 phr, but the grafts’ melt flow rate (MFR) increased significantly, and relative molecular weight decreased remarkably with increased DCP concentration. With increasing Gd, the contact angle of grafts with water decreased, and there was a larger crystallization rate. The study of iPB-1 and iPB-g-MAH (Gd = 1.5%)-modified polyamide 6 (PA6) showed that iPB-g-MAH had an obviously toughening effect on PA6. With increasing iPB-g-MAH concentration, the blends of impact strength and elongation at break increased obviously, tensile strength decreased slightly, and MFR decreased prominently, which greatly slowed the processing degradation of PA6. The properties of iPB-1/PA6 blends deteriorated. Both DSC curves and SEM micrographs confirmed that PA6/iPB-g-MAH blends had much better compatibility than PA6/iPB. The reason was that the anhydride group in iPB-g-MAH reacted with amide group in PA6 to improve the compatibility between two phases, and iPB-g-MAH is an excellent modifier for PA6.

Fusion bonding of maleic anhydride grafted polypropylene–polyamide 6 blends to polyamide 6

Polymer ◽  
1998 ◽  
Vol 39 (24) ◽  
pp. 5939-5948 ◽  
Author(s):  
Jacques-Eric Bidaux ◽  
Gregory D. Smith ◽  
Jan-Anders E. Månson ◽  
Christopher J.G. Plummer ◽  
Jöns Hilborn
Keyword(s):  
Maleic Anhydride ◽  
Polyamide 6 ◽  
Fusion Bonding

scholarly journals Dynamic Rheological Properties of Polypropylene/Polyamide-6 Blends Modified with a Maleated Thermoplastic Elastomer

2004 ◽  
Vol 36 (9) ◽  
pp. 754-760 ◽  
Author(s):  
Hongzhi Liu ◽  
Tingxiu Xie ◽  
Yuchun Ou ◽  
Xiaoping Fang ◽  
Guisheng Yang
Keyword(s):  
Rheological Properties ◽  
Thermoplastic Elastomer ◽  
Polyamide 6 ◽  
Dynamic Rheological Properties

Polypropylene/polyamide 6/polypropylene-g-maleic anhydride blending monofilaments: effects of quench temperature

2011 ◽  
Vol 18 (6) ◽  
pp. 1941-1946 ◽  
Author(s):  
Haiyan Ma ◽  
Zhaofeng Liu ◽  
Jun Zhang ◽  
Haijun Ma
Keyword(s):  
Maleic Anhydride ◽  
Polyamide 6 ◽  
Quench Temperature

Blends of polyamide 6 (PA) with maleic anhydride-grafted styrene/(ethylene or butylene)/styrene (SEBS-graft-MAH) block copolymer

Polimery ◽  
1997 ◽  
Vol 42 (09) ◽  
pp. 549-554 ◽  
Author(s):  
KRYSTYNA KELAR ◽  
BOLESLAW JURKOWSKI ◽  
DANUTA CIESIELSKA
Keyword(s):  
Block Copolymer ◽  
Maleic Anhydride ◽  
Polyamide 6

In situ compatibilization of polyamide 6/natural rubber blends with maleic anhydride

Polymer ◽  
2000 ◽  
Vol 41 (15) ◽  
pp. 5929-5935 ◽  
Author(s):  
E Carone ◽  
U Kopcak ◽  
M.C Gonçalves ◽  
S.P Nunes
Keyword(s):  
Maleic Anhydride ◽  
Natural Rubber ◽  
Polyamide 6 ◽  
Rubber Blends ◽  
In Situ Compatibilization
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