2002
DOI: 10.1081/mb-120013068
|View full text |Cite
|
Sign up to set email alerts
|

Post-Crystallization and Physical Aging of Polypropylene: Material and Processing Effects

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
21
0
1

Year Published

2005
2005
2021
2021

Publication Types

Select...
6

Relationship

5
1

Authors

Journals

citations
Cited by 38 publications
(23 citation statements)
references
References 23 publications
1
21
0
1
Order By: Relevance
“…Although the approach has limitations for practical use, annealing was shown to modify all aspects of crystalline structure and consequently properties [22][23][24][25] . Heat treatment at high temperature, close to the melting range of the polymer, results in the perfection of crystals, the increase of lamella thickness and crystallinity [26][27][28][29] , and in the decrease of the number of tie molecules.…”
Section: Introductionmentioning
confidence: 99%
“…Although the approach has limitations for practical use, annealing was shown to modify all aspects of crystalline structure and consequently properties [22][23][24][25] . Heat treatment at high temperature, close to the melting range of the polymer, results in the perfection of crystals, the increase of lamella thickness and crystallinity [26][27][28][29] , and in the decrease of the number of tie molecules.…”
Section: Introductionmentioning
confidence: 99%
“…In contrast to the results shown in Figure 5, where a clear correlation of both primary and secondary peak with the comonomer content could be established, the situation was found to be far more complex here. In general, the relative amount (enthalpy) of the secondary crystallization was higher for the 20°C chill roll temperatures than for the 90°C chill roll temperature, confirming the increased mobility in more strongly quenched films observed for PP homopolymers before [27]. Another clear difference among the materials results from the catalyst choice; the lower area of secondary crystallization for materials based on the emulsion catalyst C1 for the quenched films was quite obvious (see Figure 9).…”
Section: Resultsmentioning
confidence: 62%
“…Nucleation and chill roll temperature effects on haze of PP cast films of 50 %m thickness (absolute values and change in sterilization) for two different polymers from series C (same as in Figure 6) ment than more crystalline samples manufactured at a chill-roll temperature of 90°C. They undergo the largest reorganization and lamellar thickening with sterilization, as a combination of annealing and post-crystallization effects as also documented in the literature [6,7,9,[27][28][29].…”
Section: Resultsmentioning
confidence: 78%
See 2 more Smart Citations