scholarly journals PROPERTIES OF COMPOSITE BASED ON HIGH DENSITY POLYETHYLENE/ETHYLENE VINYL ACETATE BLEND AND A NOVEL ORGANIC MODIFIED WASTE GYPSUM

2018 ◽  
Vol 56 (3B) ◽  
pp. 87 ◽  
Author(s):  
Tran Huu Trung ◽  
Mai Duc Huynh ◽  
Do Van Cong ◽  
Nguyen Vu Giang
Keyword(s):  
Flame Retardant ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Zinc Borate ◽  
Flame Resistance ◽  
Melt Mixing ◽  
Sem Images ◽  
Waste Gypsum

In this study, waste gypsum (WGS) was used as the filler in blend of high density polyethylene (HDPE) and ethylene vinyl acetate copolymer (EVA) in order to improve the flame resistance of this composite. After modification by ethylene bis stearamide (EBS), modified gypsum (EGS) at various contents was dispersed into HDPE/EVA blend by melt-mixing method to obtain EGS/HDPE/EVA composites. The IR analysis of the EGS showed the interaction between EBS and gypsum. The difference in morphology of HDPE/EVA/EGS and HDPE/EVA/OGS composites was also observed in SEM images. By adding EGS and small amounts of flame retardant additives such as ammonia polyphosphate and zinc borate, the thermal stability and the flame resistance of HDPE/EVA/EGS composites have improved and classified at V2 grade of UL94 standard. Moreover, the second self extinguishing time (t2) of EGS composite is shorter than that of unmodified gypsum (OGS) composite because of the quality char forming after the fist burning and it plays a role as thermal barriers to protect material from heat of the second ignition. About mechanical properties, both tensile strength and elongation at break of the composite decreased with increasing the gypsum content and flame retardant additives because of filler aggregation.

Mechanical Properties and Flame-Retardant Behavior of Ethylene Vinyl Acetate/High-Density Polyethylene Coated Carbon Nanotube Nanocomposites

2007 ◽  
Vol 17 (15) ◽  
pp. 2787-2791 ◽  
Author(s):  
S. Peeterbroeck ◽  
F. Laoutid ◽  
J.-M. Taulemesse ◽  
F. Monteverde ◽  
J.-M. Lopez-Cuesta ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Flame Retardant ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Coated Carbon

scholarly journals EFFECT OF NANOCLAY ON THE MECHANICAL BEHAVIOR OF COMPATIBILIZED ETHYLENE VINYL ACETATE COPOLYMER / HIGH DENSITY POLYETHYLENE BLENDS

2014 ◽  
pp. 70-75
Author(s):  
Atul Rajan ◽  
Pradeep Upadhyaya ◽  
Vijai Kumar ◽  
Navin Chand
Keyword(s):  
Mechanical Properties ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Flexural Modulus ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Melt Mixing ◽  
Polyethylene Blends ◽  
Poly Ethylene ◽  
Acetate Copolymer

This paper presents a part of research on the mechanical properties of compatibilized Poly (ethylene-co-vinyl acetate) (EVA)/ high density polyethylene (HDPE)/ organo modified montmorillonite (OMMT) nanocomposites prepared by melt mixing technique. Use of maleic anhydride grafted polyethylene (MA-g-PE) as Compatibilizer improves compatibility of EVA and HDPE. Blends containing EVA/HDPE blend with 2 phr MA-g-PE shows optimum properties. It observes that the addition of nanoclay improves the mechanical properties like tensile strength, flexural modulus, abrasion resistance and hardness of compatibilized nanocomposites systems. The morphology is studied by Scanning Electron Microscopy (SEM). The optimized properties occurrs at clay loading levels of 4 phr with MA-g-PE system.

Effect of PEgMAH on Tensile Properties and Swelling Behaviour of Recycled High Density Polyethylene/Ethylene Vinyl Acetate/Waste Tyre Dust (r-HDPE/EVA/WTD) Composites

2014 ◽  
Vol 554 ◽  
pp. 137-140 ◽  
Author(s):  
A.R.H. Fatimah ◽  
Ikmal Hakem Abdul Aziz ◽  
A.Ghani Supri
Keyword(s):  
Maleic Anhydride ◽  
Tensile Properties ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Rotor Speed ◽  
Swelling Behaviour ◽  
Dust Loading ◽  
Waste Tyre

The effect of polyethylene grafted maleic anhydride as a compatibilizer on the tensile properties, and swelling behavior of recycled high density polyethylene/ethylene vinyl acetate/ waste tyre dust (r-HDPE/EVA/WTD) composites was studied. r-HDPE/EVA/WTD composites with different tyre dust loading and the addition of polyethylene grafted maleic anhydride (PEgMAH) were prepared with Brabender Plasticorder at temperature of 160°C and rotor speed of 50 rpm. The result indicated that r-HDPE/EVA/WTD/PEgMAH composites exhibit higher tensile strength, modulus of elasticity, and mass swell resistance than r-HDPE/EVA/WTD composites.

Sign in / Sign up

Export Citation Format

Share Document