Polybutene-1 tube with in situ microfibering polystyrene via helical convergent flow: an economical pathway to continuously fabricate biaxially reinforced polyolefin tubes for medical application

Synergistic effect of self-assembling nucleating agent and crystallization promoter on polypropylene random copolymer pipes via rotation extrusion

“…What's noticeable is the alignment of anisotropic reinforcing component (shish‐kebabs, hybrid shish‐kebabs, microfibers etc.) off the axial direction, controlled by a self‐designed rotation apparatus, had been shown in our previous works, which was considered be extremely beneficial in enhancing and balancing the pipes’ mechanical properties, especially in hoop direction . In this study, TMB‐5, a commercially available β‐form nucleating agent, was added into PPR matrix to induce the formation of β‐form hybrid shish‐kebabs which inherit the toughness from β‐form crystals and strength from shish‐kebab structure, and afterwards PPR was processed into pipe via our self‐designed rotation extrusion equipment.…”

Study on the Synthesis and Characterization of Antibacterial Polystyrenes

“…Polystyrene (PSt) as one of the oldest and one of the major synthetic thermoplastic polymers in use today, finds in countless commercial applications, commonly applied in food contact packaging, medical, construction, electronic and housings material industries due to its insulating and physical properties and low-cost (1)(2)(3)(4)(5). Despite the its outstanding properties including acceptable mechanical performance, good chemical inertness and excellent processing capability, technological advances and environmental and energy concerns in the field have given rise to the necessity of introducing additional features to polystyrene, for example improved electrical conductivity, biodegradability, mechanical and antibacterial properties.…”

Improved viscoelastic, thermal, and mechanical properties of in situ microfibrillar polypropylene/polyamide 6,6 composites via direct extrusion using a triple-screw extruder

“…Many studies have also been carried out to explore the inuence of in situ microbrils on the polymers' rheological properties such as shear and elongational viscoelastic behavior. [15][16][17][18][19] Currently, it has been acknowledged that the presence of a physical entanglement network dened by topological (entangled) interactions can signicantly enhance the composite's melt elasticity, and thus, affect the material properties and its processability. The enhanced melt elasticity is very important for some processing such as blow molding and foaming, where biaxial strength is needed.…”