Brittle-ductile transition behavior of the polypropylene/ultra-high molecular weight polyethylene/olefin block copolymers ternary blends: Dispersion and interface design

Polymer ◽  
2019 ◽  
Vol 182 ◽  
pp. 121819 ◽  
Author(s):  
Shida Han ◽  
Tianci Zhang ◽  
Yuhang Guo ◽  
Chunhai Li ◽  
Hong Wu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
High Molecular Weight ◽  
Interface Design ◽  
Ternary Blends ◽  
Transition Behavior ◽  
Brittle Ductile Transition ◽  
Ultra High Molecular Weight

scholarly journals Synergistic toughening of polypropylene with ultra-high molecular weight polyethylene and elastomer-olefin block copolymers

RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23994-24002 ◽  
Author(s):  
Lucheng Qi ◽  
Lei Wu ◽  
Ren He ◽  
Hui Cheng ◽  
Boping Liu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Rheological Properties ◽  
High Molecular Weight ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Twin Screw ◽  
Ultra High Molecular Weight

Blends of polypropylene (PP) and ultra-high molecular weight polyethylene (UHMWPE) with elastomer-olefin block copolymers (OBC) were prepared using an ultrasonic twin-screw extruder, and their mechanical and rheological properties were investigated.

scholarly journals Development of surface properties of ultra-high-molecular-weight polyethylene film using side-chain crystalline block copolymers

2020 ◽  
Vol 40 (3) ◽  
pp. 231-236 ◽  
Author(s):  
Sho Hirai ◽  
Shoichi Ishimoto ◽  
Patchiya Phanthong ◽  
Shigeru Yao
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
High Molecular Weight ◽  
Surface Properties ◽  
Functional Unit ◽  
Side Chain ◽  
Adhesive Properties ◽  
High Adhesion ◽  
Adhesion Contact ◽  
Ultra High Molecular Weight

AbstractUltra-high-molecular-weight polyethylene (UHMWPE) has been widely used in industry; however, the applications for UHMWPE are limited because of low hydrophilic and adhesive properties. Herein, we developed the surface properties of UHMWPE by using side-chain crystalline block copolymers (SCCBCs), which consist of a side-chain crystalline unit and a functional unit. This process only required immersing the UHMWPE film in the diluted SCCBC solution, which enabled the UHMWPE surface to be coated homogeneously. The results of the contact angle and tensile shear test showed that the surface of UHMWPE modified with SCCBC was improved in hydrophilicity and adhesive properties. In addition, high adhesion strength was measured on UHMWPE surfaces dipped in a SCCBC solution at high temperature with the UHMWPE film becoming elongated at all parts other than the adhesion contact area.

Application of ultra-high molecular weight polyethylene in a hydraulic drive

2020 ◽  
pp. 77-78
Keyword(s):  
Molecular Weight ◽  
Low Temperature ◽  
High Molecular Weight ◽  
Hydraulic Drive ◽  
Control Valve ◽  
Hydraulic Control ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Hydraulic Oil ◽  
Ultra High Molecular Weight

The use of ultra-high molecular weight polyethylene (UHMW PE) for the manufacture of various parts, in particular cuffs for hydraulic drives, is proposed. The properties and advantages of UHMW PE in comparison with other polyethylene materials are considered. Keywords ultra-high molecular weight polyethylene, hydraulic pump, hydraulic motor, hydraulic control valve, hydraulic oil, low temperature. [email protected]

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