The evaluation of extensional viscosity of highly filled polyolefins composites films with calcium carbonate. (10th August 2018)

• Record Type: Journal Article
• Authors: Kloziński, Arkadiusz; Jakubowska, Paulina
• Is Part Of: Polymer engineering & science. Volume 59(2019)Supplement 1
• Page Start: E155
• Page End: E163
• Publication Date: 2018-08-10
• Subjects: Polymer engineering -- Periodicals; Polymers -- Periodicals; 668.9
• DOI: 10.1002/pen.24894
• Languages: English
• ISSNs: 0032-3888

Abstract

Abstract : This article reports the results of the extensional viscosity ( η E ) of polyolefins composites films. The test material was composed of ternary MDPE/iPP/CaCO3 composites with a calcium carbonate content of 48–72% by mass. The concentrations of the composites and reference materials that were PE‐MD/iPP mixtures are summarized in Table 1. For all materials the viscosity curves (rotational rheometer) and the change in mass flow rate were determined. Two types of investigated films were produced: cast films and blow films. The extensional viscosity of films (thickness ≈ 80 μm) was performed on a SER‐2 Universal Testing Platform. The influence of the addition of calcium carbonate, extrusion techniques and the direction of sample cut (MD and TD) to change the extensional viscosity were discussed. The extensional viscosity measurements ( η E ) were taken at a temperature of 140°C and for a strain rate (Hencky strain rate) of ɛ ̇ H = 0.1, 0.2 and 0.5 s −1 . POLYM. ENG. SCI., 59:E155–E163, 2019. © 2018 Society of Plastics Engineers