Instrument for mimicking fast cooling conditions of polymers: Design and case studies on polypropylene

被引：6
作者：
Carmeli, Enrico [1 ,2 ]
Cavallo, Dario [1 ]
Tranchida, Davide [2 ]
机构：
[1] Univ Genoa, Dipartimento Chim & Chim Ind, Via Dodecaneso 31, I-16146 Genoa, Italy
[2] Borealis Polyolefine GmbH, Innovat Headquarters, St Peterstr 25, A-4021 Linz, Austria
来源：
POLYMER TESTING | 2021年 / 97卷
关键词：
Isotactic-polypropylene; Processing; Cooling rate; Heat transfer; Crystallization kinetics; MADE ISOTACTIC POLYPROPYLENE; CRYSTALLIZATION KINETICS; NONISOTHERMAL CRYSTALLIZATION; NUCLEATING-AGENT; HEAT-TRANSFER; MESOPHASE; SAMPLES; NANOCALORIMETRY; REORGANIZATION; POLYMORPHISM;
D O I：
10.1016/j.polymertesting.2021.107164
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The complete understanding of polymers crystallization kinetic in real industrial processes is fundamental for designing materials towards specific applications. Hereby, we propose a method for fast cooling preparation of polymers by means of air and water sprays, which presents several enhancements with respect to previous similar devices. The new device was built in order to fulfill safety and cleaning standards required in an industrial environment. Furthermore, the small dimensions and the limited costs enable its implementation in any laboratory. Moreover, preliminary results on selected isotactic-polypropylenes (iPP) were obtained in a cooling range from 0.01 to a few thousand degrees C/s, in order to validate the present method by comparison with previous literature results and to highlight the large range of studies that can be carried out with this set-up. Ex-situ analysis with WAXS, DSC and AFM techniques were performed to characterize such prepared samples.
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页数：11
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