Results 191 to 200 of about 7,137,178 (288)

Solids Conveying in Injection Molding Machines—Analytical Model for Smooth and Grooved Feed Sections Derived From DEM Simulations

open access: yesPolymer Engineering &Science, EarlyView.
Understanding Solids Conveying in Injection Molding Machines – Dimensions. ABSTRACT Solids conveying is a key aspect for the design of polymer processing machines, especially for processes with high screw speeds, grooved feed sections, and material with low bulk density.
Jan Landgraeber   +4 more
wiley   +1 more source

Polybutylene Adipate Terephthalate Meltblown Nonwoven With Annular Meltblown Die: Processability and Structure–Property Relationship

open access: yesPolymer Engineering &Science, EarlyView.
Schematics of meltblown fiber formation with key processing parameters and their influences on processing window and nonwoven barrier properties. ABSTRACT This study evaluates the meltblown processing behavior of Polybutylene Adipate Terephthalate (PBAT), one of promising biodegradable polymers, and investigates the complex processing–structure ...
Eunkyoung Shim   +3 more
wiley   +1 more source

Effect of Crystal Polymorphism on Elastic Modulus and Hardness of Poly(Butylene 2,6‐Naphthalate) (PBN)

open access: yesPolymer Engineering &Science, EarlyView.
The research provides insight into the mechanical behavior of the high‐performance polyester Poly(Butylene 2,6‐Naphthalate) containing different crystal polymorphs, adjustable by the conditions of melt‐crystallization. ABSTRACT The modulus of elasticity and hardness of poly(butylene 2,6‐naphthalate) (PBN) were investigated at different length scales ...
Mengxue Du   +5 more
wiley   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

open access: yesPolymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani   +4 more
wiley   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

open access: yesPolymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang   +7 more
wiley   +1 more source

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