Injection and injection compression molding of ultra-high-molecular weight polyethylene powder

2018 ◽  
Vol 59 (s2) ◽  
pp. E170-E179 ◽  
Author(s):  
Galip Yilmaz ◽  
Thomas Ellingham ◽  
Lih-Sheng Turng
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Compression Molding ◽  
Injection Compression Molding ◽  
Ultra High Molecular Weight ◽  
Polyethylene Powder

Fabrication of Kevlar®-reinforced ultra-high molecular weight polyethylene composite through microwave-assisted compression molding for body armor applications

2020 ◽  
pp. 073168442095944
Author(s):  
Taresh Guleria ◽  
Nishant Verma ◽  
Sunny Zafar ◽  
Vivek Jain
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Energy Absorption ◽  
Compression Molding ◽  
High Energy ◽  
Impact Testing ◽  
Uniaxial Tensile ◽  
Microwave Assisted ◽  
Uniaxial Tensile Testing ◽  
Ultra High Molecular Weight

Kevlar®-reinforced composites are used in high energy absorption applications. In the present work, Kevlar®-reinforced ultra-high molecular weight polyethylene composites were fabricated through microwave-assisted compression molding. The microwave-assisted compression molding parameters were optimized through trial and error method. Analysis of mechanical behavior of composites was accessed through uniaxial tensile testing, flexural testing, impact testing, and nano-indentation. The fractured specimens were observed using scanning electron microscopy. An increment of 92.2% was observed in the ultimate tensile strength of the ultra-high molecular weight polyethylene/Kevlar® composite compared to neat ultra-high molecular weight polyethylene. Flexural properties, impact energy absorption rate, and hardness property of the composite were increased by 27.1%, 91.6%, and 4.77%, respectively, compared to pure ultra-high molecular weight polyethylene. Enhanced mechanical properties may be attributed to unique microwave heating phenomena during microwave-assisted compression molding.

scholarly journals Melting kinetics, ultra-drawability and microstructure of nascent ultra-high molecular weight polyethylene powder

Polymer ◽  
2021 ◽  
Vol 222 ◽  
pp. 123633
Author(s):  
Fotis Christakopoulos ◽  
Enrico M. Troisi ◽  
Alla S. Sologubenko ◽  
Nic Friederichs ◽  
Laura Stricker ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Melting Kinetics ◽  
Ultra High Molecular Weight ◽  
Polyethylene Powder
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