- Tytuł:
- The Impact of Selected Injection Conditions on the Properties and Structure of Molded Parts Made of HDPE with Chemical Blowing Agent
- Autorzy:
-
Palutkiewicz, Paweł
Postawa, Przemysław
Wawrzyniak, Jakub - Powiązania:
- https://bibliotekanauki.pl/articles/2049716.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
injection molding
polyethylene
blowing agents
foaming - Opis:
- In this work, the influence of plastic injection molding conditions, mainly plasticizing conditions: plasticizing pressure (back pressure) and decompression (suck-back) after dosing on weight, thickness, mechanical properties and structure of HDPE parts obtained by injection molding with the addition of chemical blowing agent was done. In order to enable the manufacturing of correctly made molded parts under given plasticizing conditions, other parameters (hold time and hold pressure, injection velocity and injection time) were also changed. It was found that making correct molded parts using decompression requires increased hold pressure and hold time. The share of the porous structure in the parts is inversely proportional to the decompression as well as the hold pressure and hold time, while the plasticizing pressure has little effect on thickness, mass, tensile strength and elongation at maximum force, however, it affects the structure of the molded parts to some extent.
- Źródło:
-
Archives of Metallurgy and Materials; 2021, 66, 2; 497-502
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł