The influence of calcium carbonate and its modifications on the extrusion process and selected properties of polypropylene cast films

被引：3
|
作者：
Klozinski, Arkadiusz [1 ]
Szczepanska, Malgorzata [1 ]
Jakubowska, Paulina [1 ]
Samujlo, Bronislaw [2 ]
Barczewski, Mateusz [3 ]
Lota, Grzegorz [4 ]
机构：
[1] Poznan Univ Tech, Inst Chem Technol & Engn, Fac Chem Technol, Berdy-Chowo 4, PL-60965 Poznan, Poland
[2] Lublin Univ Technol, Fac Mech Engn, Dept Technol & Polymer Proc, Nadbystrzycka 36, PL-20618 Lublin, Poland
[3] Poznan Univ Tech, Inst Mat Technol, Fac Mech Engn & Management, Piotrowo 3, PL-61138 Poznan, Poland
[4] Poznan Univ Tech, Inst Chem & Tech Electrochem, Fac Chem Technol, Berdychowo 4, PL-60965 Poznan, Poland
来源：
POLIMERY | 2022年 / 67卷 / 10期
关键词：
polypropylene; calcium carbonate; polymer composites; extrusion; films; tensile strength; extensional viscosity; haze; gloss; RHEOLOGICAL PROPERTIES; OFF-LINE; POLYETHYLENE COMPOSITES; MECHANICAL-PROPERTIES; OPTICAL-PROPERTIES; HAZE; FLOW; CRYSTALLIZATION; POLYOLEFIN; GLOSS;
D O I：
10.14314/polimery.2022.10.6
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The effect of unmodified and stearic acid-modified calcium carbonate (5, 10, 20 and 30 wt%) on selected properties (tensile strength, puncture resistance, haze and gloss) and processability of poly-propylene films (MVR, extensional viscosity) was investigated. The composites were obtained in the twin-screw extrusion process with cold granulation, and the films in the single-screw extrusion process, using a flat die head (so-called cast films) and a chill roll type cooling and pull-back device. It has been shown that stearic acid is an effective modifier of polypropylene processing properties both under shear and tensile flow conditions (lower extensional viscosity of films containing modified calcium carbon-ate).
引用
收藏
页码：509 / 521
页数：13
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