| Title |
Assessment of Commercially Available Polyethylene Recyclates for Blow Molding Applications by a Novel Environmental Stress Cracking Method |
| ID_Doc |
7964 |
| Authors |
Freudenthaler, PJ; Fischer, J; Lang, RW |
| Title |
Assessment of Commercially Available Polyethylene Recyclates for Blow Molding Applications by a Novel Environmental Stress Cracking Method |
| Year |
2023 |
| Published |
Polymers, 15, 1 |
| DOI |
10.3390/polym15010046 |
| Abstract |
The transition to a circular economy has a major impact on waste management and the reuse of materials. New mandatory recycling targets for plastics will lead to a high availability of recyclates. For these recyclates, useful applications need to be found. One potential application for recyclates is blow molding bottles as packaging for non-food contents. This study investigates commercially available post-consumer high-density polyethylene recyclates together with virgin blow molding grades in terms of their short-term mechanical properties and environmental stress cracking resistance. While the short-term mechanical properties showed only slightly lower performance than the tested virgin grades, the overall environmental stress cracking failure times of the recyclates were much lower compared to virgin materials, even though the crack-growth kinetics could be similar. Although neither the tensile nor the notched impact strength results of the two polyethylene recyclates revealed large differences, the stress intensity-factor-dependent crack-growth rates of both materials were significantly different. |
| Author Keywords |
blow molding; polyethylene; environmental stress cracking resistance; cracked round bar specimens; recyclate; fatigue; slow crack growth |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000909025100001 |
| WoS Category |
Polymer Science |
| Research Area |
Polymer Science |
| PDF |
https://www.mdpi.com/2073-4360/15/1/46/pdf?version=1672224526
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